{"type": "FeatureCollection", "features": [{"id": "10.1007/s00374-003-0612-7", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:14:25Z", "type": "Journal Article", "created": "2003-10-27", "title": "Effect Of Eisenia Foetida Earthworms On Mineralization Kinetics, Microbial Biomass, Enzyme Activities, Respiration And Labile C Fractions Of Three Soils Treated With A Composted Organic Residue", "description": "Open AccessPeer reviewed", "keywords": ["Microbial metabolic quotient", "2. Zero hunger", "Biomass C", "Clay soils", "C mineralization", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "Sandy soil"]}, "links": [{"href": "https://doi.org/10.1007/s00374-003-0612-7"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biology%20and%20Fertility%20of%20Soils", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s00374-003-0612-7", "name": "item", "description": "10.1007/s00374-003-0612-7", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s00374-003-0612-7"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2003-06-01T00:00:00Z"}}, {"id": "10.1016/j.catena.2016.02.013", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:15:51Z", "type": "Journal Article", "created": "2016-02-27", "title": "Land Use Affects Soil Biochemical Properties In Mt. Kilimanjaro Region", "description": "\u00a9 2016 Elsevier B.V.Microbial parameters have been used to monitor changes in soil quality. Soils from four land use systems common in East Africa and present in the Mt. Kilimanjaro region: (1) montane forest, (2) savannah (3) maize fields and (4) Chagga homegardens were used in laboratory incubations to assess the effects of landuse changes on soil quality. Soil organic matter mineralization and the following microbial parameters: microbial biomass C, mineralization quotient, metabolic quotient and activities of four enzymes: \u03b2-glucosidase, cellobiohydrolase, phosphatase and chitinase were determined. Microbial biomass C content, \u03b2-glucosidase, cellobiohydrolase and chitinase activities were higher in natural systems compared to agricultural soils. High phosphatase activity observed in all land use types reflected strong phosphorus limitation in andic soils of the Mt. Kilimanjaro region. Chitinase activity in montane forest soils was 3 times higher than in Chagga homegardens. Mineralization quotient and cellobiohydrolase activity best exhibited the effect of land-use changes on soil quality in the Mt. Kilimanjaro region. Cellobiohydrolase activity was up to 3 times higher under natural ecosystems compared to agroecosystems. A high percentage of microbial biomass C content in total organic C and low metabolic quotient were observed in Chagga homegarden soils. Soil enzymes (especially cellobiohydrolase) best distinguished between natural and agricultural ecosystems, and are therefore useful for monitoring changes in soil quality. In conclusion, the measured microbial parameters clearly show that the microbial organisms in traditional Chagga homegardens system have high substrate use efficiency. This demonstrates that traditional agroforestry systems promotes soil fertility and are more suitable for agricultural production in the tropics compared to monocropping systems like maize plantations.", "keywords": ["Mineralization quotient", "2. Zero hunger", "Metabolic quotient", "Microbial biomass content", "13. Climate action", "Enzyme activity", "Agroforestry", "Chagga homegardens", "15. Life on land", "630"]}, "links": [{"href": "https://doi.org/10.1016/j.catena.2016.02.013"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/CATENA", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.catena.2016.02.013", "name": "item", "description": "10.1016/j.catena.2016.02.013", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.catena.2016.02.013"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2016-06-01T00:00:00Z"}}, {"id": "10.1111/sum.12003", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:18:48Z", "type": "Journal Article", "created": "2012-11-01", "title": "Consequences Of Forest Conversion To Pasture And Fallow On Soil Microbial Biomass And Activity In The Eastern Amazon", "description": "Abstract<p>The main change in soil use in Amazonia is, after slash and burn deforestation followed by annual crops, the establishment of pastures. This conversion of forest to pasture induces changes in the carbon cycle, modifies soil organic matter content and quality and affects biological activity responsible for numerous biochemical and biological processes essential to ecosystem functioning. The aim of this study was to assess changes in microbial biomass and activity in fallow and pasture soils after forest clearing. The study was performed in smallholder settlements of eastern Brazilian Amazonia. Soil samples from depths of 0\uffe2\uff80\uff932, 2\uffe2\uff80\uff935 and 5\uffe2\uff80\uff9310\uffc2\uffa0cm were gathered in native forest, fallow land 8\uffe2\uff80\uff9310\uffc2\uffa0yr old and pastures with ages of 1\uffe2\uff80\uff932, 5\uffe2\uff80\uff937 and 10\uffe2\uff80\uff9312\uffc2\uffa0yr. Once fallow began, soil microbial biomass and its activity showed little change. In contrast, conversion to pasture modified soil microbial functioning significantly. Microbial biomass and its basal respiration decreased markedly after pasture establishment and continued to decrease with pasture age. The increase in metabolic quotient in the first years of pasture indicated a disturbance in soil functioning. Our study confirms that microbial biomass is a sensitive indicator of soil disturbance caused by land\uffe2\uff80\uff90use change.</p>", "keywords": ["2. Zero hunger", "570", "Soil microbial carbon", "land use", "04 agricultural and veterinary sciences", "15. Life on land", "630", "13. Climate action", "microbial basal respiration", "tropical soil", "deforestation", "0401 agriculture", " forestry", " and fisheries", "metabolic quotient"], "contacts": [{"organization": "Melo, V. S., /Desjardins, Thierry, Silva, M. L., Santos, E. R., /Sarrazin, Max, Santos, M. M. L. S.,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1111/sum.12003"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20Use%20and%20Management", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/sum.12003", "name": "item", "description": "10.1111/sum.12003", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/sum.12003"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2012-11-01T00:00:00Z"}}, {"id": "10.1590/s0044-59672010000100003", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:19:21Z", "type": "Journal Article", "created": "2010-05-05", "title": "Carbono Org\u00e2nico E Biomassa Microbiana Do Solo Em Plantios De Acacia Mangium No Cerrado De Roraima", "description": "<p>O objetivo do estudo foi avaliar os efeitos de plantios de Acacia mangium, localizados no cerrado em Roraima, sobre o carbono org\uffc3\uffa2nico e biomassa microbiana do solo. Foram realizadas amostragens de solo nas profundidades de 0-20 cm e 20-40 cm em dois plantios de A. mangium com cerca de cinco anos de idade, e em duas \uffc3\uffa1reas de Cerrado nativo consideradas refer\uffc3\uffaancia. Um dos plantios de A. mangium (localizado na Fazenda Cigolina) correspondeu a um plantio homog\uffc3\uffaaneo (espa\uffc3\uffa7amento de 3,6 m entre linhas e 2,0 m entre plantas) enquanto que o outro (localizado no Campo Experimental \uffc3\uff81gua Boa - CEAB) correspondeu a um plantio em faixas com duas linhas de plantio (espa\uffc3\uffa7amento de 6 m entre linhas, 2,5 m entre plantas e cerca de 30 m entre faixas). As amostras de solo foram analisadas quanto ao carbono org\uffc3\uffa2nico, carbono da biomassa microbiana, respira\uffc3\uffa7\uffc3\uffa3o basal do solo e quociente metab\uffc3\uffb3lico, al\uffc3\uffa9m de atributos qu\uffc3\uffadmicos de fertilidade. Foi verificado que os plantios de A. mangium n\uffc3\uffa3o proporcionaram aumentos significativos do carbono org\uffc3\uffa2nico do solo em compara\uffc3\uffa7\uffc3\uffa3o \uffc3\uffa0s \uffc3\uffa1reas de refer\uffc3\uffaancia. Entretanto, na m\uffc3\uffa9dia geral, esses plantios proporcionaram aumento do carbono da biomassa microbiana do solo e redu\uffc3\uffa7\uffc3\uffa3o do quociente metab\uffc3\uffb3lico, indicando a possibilidade de ac\uffc3\uffbamulo de carbono org\uffc3\uffa2nico no solo em longo prazo. Tamb\uffc3\uffa9m foi observado que, em compara\uffc3\uffa7\uffc3\uffa3o ao plantio da fazenda Cigolina e \uffc3\uffa0s \uffc3\uffa1reas de refer\uffc3\uffaancia, o carbono microbiano do solo foi maior e acompanhado de menor quociente metab\uffc3\uffb3lico no plantio de A. mangium no CEAB, mostrando que a estrutura de plantio exerceu influ\uffc3\uffaancia sobre a biomassa microbiana do solo.</p>", "keywords": ["0106 biological sciences", "plantios florestais", "Amazonian", "forest plantation", "04 agricultural and veterinary sciences", "quociente metab\u00f3lico", "01 natural sciences", "Amaz\u00f4nia", "Respira\u00e7\u00e3o basal do solo", "0401 agriculture", " forestry", " and fisheries", "Soil basal respiration", "qualidade do solo", "soil quality", "metabolic quotient"]}, "links": [{"href": "https://doi.org/10.1590/s0044-59672010000100003"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Acta%20Amazonica", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1590/s0044-59672010000100003", "name": "item", "description": "10.1590/s0044-59672010000100003", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1590/s0044-59672010000100003"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2010-03-01T00:00:00Z"}}, {"id": "10.1590/s0100-06832005000500007", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:19:21Z", "type": "Journal Article", "created": "2006-04-19", "title": "Efeito Do Monocultivo De Pinus E Da Queima Do Campo Nativo Em Atributos Biol\u00f3gicos Do Solo No Planalto Sul Catarinense", "description": "<p>O presente estudo objetivou avaliar o impacto da queima tradicional de campo nativo e do monocultivo de Pinus sp. em Lages (SC), no CO total do solo (COT), carbono da biomassa microbiana (CBM), respira\uffc3\uffa7\uffc3\uffa3o basal (C-CO2), quociente metab\uffc3\uffb3lico microbiano (qCO2) e rela\uffc3\uffa7\uffc3\uffa3o CBM:COT. Foram selecionadas quatro \uffc3\uffa1reas representativas da regi\uffc3\uffa3o, de 0,5 ha cada, sendo: (a) Campo nativo, sem queima nos \uffc3\uffbaltimos 50 anos (CN); (b) Campo nativo submetido \uffc3\uffa0 queima tradicional (CNQ), ambas, pastagens naturais; (c) Mata natural com predomin\uffc3\uffa2ncia de Araucaria angustifolia (MATA); e (d) Reflorestamento de Pinus taeda com oito anos (PINUS). Para tanto, coletaram-se seis amostras, compostas de nove subamostras de solo em cada \uffc3\uffa1rea, na profundidade de 0-5 cm, em dezembro de 2002. Para avaliar o CBM, foi utilizado o m\uffc3\uffa9todo da fumiga\uffc3\uffa7\uffc3\uffa3o-extra\uffc3\uffa7\uffc3\uffa3o. O C-CO2 foi determinado em laborat\uffc3\uffb3rio. Os maiores valores de libera\uffc3\uffa7\uffc3\uffa3o de C-CO2 foram encontrados na MATA e no PINUS, seguidos de CNQ e CN, respectivamente. Os maiores valores de CBM, COT e rela\uffc3\uffa7\uffc3\uffa3o CBM:COT foram encontrados na MATA, n\uffc3\uffa3o tendo as demais \uffc3\uffa1reas estudadas apresentado diferen\uffc3\uffa7as entre si. O qCO2 foi maior no PINUS, seguido de CNQ, em compara\uffc3\uffa7\uffc3\uffa3o com MATA e CN. A an\uffc3\uffa1lise multivariada mostrou ser uma ferramenta auxiliar importante ao discriminar o CBM como sendo o atributo que mais contribuiu na separa\uffc3\uffa7\uffc3\uffa3o entre as \uffc3\uffa1reas estudadas.</p>", "keywords": ["CO total", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "total organic carbon", "soil microbial biomass carbon", "bioindicador de qualidade", "C-biomassa", "quociente metab\u00f3lico", "soil quality bioindicator", "metabolic quotient"], "contacts": [{"organization": "Baretta, Dilmar, Santos, Julio Cesar Pires, Figueiredo, Samuel Ribeiro, Klauberg-Filho, Osmar,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1590/s0100-06832005000500007"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Revista%20Brasileira%20de%20Ci%C3%AAncia%20do%20Solo", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1590/s0100-06832005000500007", "name": "item", "description": "10.1590/s0100-06832005000500007", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1590/s0100-06832005000500007"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2005-10-01T00:00:00Z"}}, {"id": "10.1590/s0100-06832011000200028", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:19:22Z", "type": "Journal Article", "created": "2011-06-21", "title": "Sistemas De Preparo Do Solo E Culturas De Cobertura Na Produ\u00e7\u00e3o Org\u00e2nica De Feij\u00e3o E Milho: I - Atributos F\u00edsicos Do Solo", "description": "<p>H\uffc3\uffa1 necessidade de se avaliar a contribui\uffc3\uffa7\uffc3\uffa3o de culturas de cobertura e do seu manejo na manuten\uffc3\uffa7\uffc3\uffa3o da qualidade biol\uffc3\uffb3gica do solo em \uffc3\uffa1reas sob produ\uffc3\uffa7\uffc3\uffa3o org\uffc3\uffa2nica. Este trabalho objetivou determinar a influ\uffc3\uffaancia das plantas de cobertura crotal\uffc3\uffa1ria (Crotalaria juncea), guandu (Cajanus cajan (L.) Millsp), mucuna-preta (Mucuna aterrima), sorgo-vassoura (Sorghum technicum) e pousio nos atributos biol\uffc3\uffb3gicos de solo cultivado com feij\uffc3\uffa3o e milho org\uffc3\uffa2nicos, sob semeadura direta (SD) e preparo convencional (PC). O trabalho foi conduzido em Santo Ant\uffc3\uffb4nio de Goi\uffc3\uffa1s-GO, em Latossolo Vermelho distr\uffc3\uffb3fico, no delineamento de blocos ao acaso, com quatro repeti\uffc3\uffa7\uffc3\uffb5es. Em novembro de 2003 foram instalados quatro experimentos, dois em SD e dois em PC, sendo um com feij\uffc3\uffa3o e outro com milho em cada sistema. Amostragens de solo das parcelas e de uma mata pr\uffc3\uffb3xima aos experimentos foram realizadas em novembro de 2007, nas camadas de 0,00-0,10 e 0,10-0,20 m, para determina\uffc3\uffa7\uffc3\uffa3o do teor de C org\uffc3\uffa2nico total (COT), carbono da biomassa microbiana (CBM), respira\uffc3\uffa7\uffc3\uffa3o basal do solo (RBS), quociente metab\uffc3\uffb3lico (qCO2) e quociente microbiano (qMIC). As principais altera\uffc3\uffa7\uffc3\uffb5es nos atributos biol\uffc3\uffb3gicos com o uso agr\uffc3\uffadcola ocorreram na camada superficial, onde, de maneira geral, os valores de CBM foram menores que no solo sob mata, sendo esse fato mais pronunciado nas \uffc3\uffa1reas sob PC. O qCO2 mostrou-se sens\uffc3\uffadvel \uffc3\uffa0s altera\uffc3\uffa7\uffc3\uffb5es decorrentes do preparo do solo, apresentando valores mais favor\uffc3\uffa1veis na camada superficial do solo sob SD.</p>", "keywords": ["microbial quotient", "respira\u00e7\u00e3o basal do solo", "bulk density", "Agriculture (General)", "soil porosity", "quociente metab\u00f3lico", "Zea mays", "S1-972", "S index", "soil basal respiration", "Phaseolus vulgaris L", "densidade do solo", "2. Zero hunger", "04 agricultural and veterinary sciences", "\u00edndice S", "15. Life on land", "porosidade do solo", "6. Clean water", "soil organic carbon", "C org\u00e2nico do solo", "microbial biomass carbon", "carbono da biomassa microbiana", "0401 agriculture", " forestry", " and fisheries", "metabolic quotient", "quociente microbiano"]}, "links": [{"href": "https://doi.org/10.1590/s0100-06832011000200028"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Revista%20Brasileira%20de%20Ci%C3%AAncia%20do%20Solo", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1590/s0100-06832011000200028", "name": "item", "description": "10.1590/s0100-06832011000200028", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1590/s0100-06832011000200028"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2011-04-01T00:00:00Z"}}, {"id": "10.1590/s0100-06832012000400013", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:19:22Z", "type": "Journal Article", "created": "2012-10-24", "title": "Chemical And Biochemical Properties Of Araucaria Angustifolia (Bert.) Ktze. Forest Soils In The State Of S\u00e3o Paulo", "description": "<p>Araucaria angustifolia, commonly named Araucaria, is a Brazilian native species that is intensively exploited due to its timber quality. Therefore, Araucaria is on the list of species threatened by extinction. Despite the importance of soil for forest production, little is known about the soil properties of the highly fragmented Araucaria forests. This study was designed to investigate the use of chemical and biological properties as indicators of conservation and anthropogenic disturbance of Araucaria forests in different sampling periods. The research was carried out in two State parks of S\uffc3\uffa3o Paulo: Parque Estadual Tur\uffc3\uffadstico do Alto do Ribeira and Parque Estadual de Campos de Jord\uffc3\uffa3o. The biochemical properties carbon and nitrogen in microbial biomass (MB-C and MB-N), basal respiration (BR), the metabolic quotient (qCO2) and the following enzyme activities: \uffce\uffb2-glucosidase, urease, and fluorescein diacetate hydrolysis (FDA) were evaluated. The sampling period (dry or rainy season) influenced the results of mainly MB-C, MB-N, BR, and qCO2. The chemical and biochemical properties, except K content, were sensitive indicators of differences in the conservation and anthropogenic disturbance stages of Araucaria forests. Although these forests differ in biochemical and chemical properties, they are efficient in energy use and conservation, which is shown by their low qCO2, suggesting an advanced stage of succession.</p>", "keywords": ["microbial metabolic quotient", "microbial biomass", "(qCO2)", "Agriculture (General)", "04 agricultural and veterinary sciences", "quociente metab\u00f3lico", "soil respiration", "S1-972", "biomassa microbiana", "respira\u00e7\u00e3o do solo", "enzimas do solo", "qCO2", "0401 agriculture", " forestry", " and fisheries", "qualidade do solo", "soil quality", "soil enzymes"]}, "links": [{"href": "https://doi.org/10.1590/s0100-06832012000400013"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Revista%20Brasileira%20de%20Ci%C3%AAncia%20do%20Solo", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1590/s0100-06832012000400013", "name": "item", "description": "10.1590/s0100-06832012000400013", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1590/s0100-06832012000400013"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2012-08-01T00:00:00Z"}}, {"id": "10.1590/s0100-204x2004001100008", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:19:22Z", "type": "Journal Article", "created": "2005-04-26", "title": "Din\u00e2mica Da Mat\u00e9ria Org\u00e2nica E Da Biomassa Microbiana Em Solo Submetido A Diferentes Sistemas De Manejo Na Amaz\u00f4nia Ocidental", "description": "<p>O objetivo deste trabalho foi avaliar as altera\uffc3\uffa7\uffc3\uffb5es na atividade da biomassa microbiana como um indicador da din\uffc3\uffa2mica de C e N em solo submetido \uffc3\uffa0 sucess\uffc3\uffa3o de cobertura vegetal e de manejo na Amaz\uffc3\uffb4nia Ocidental. Os trabalhos foram realizados em duas cronosseq\uffc3\uffbc\uffc3\uffaancias: CA - sucess\uffc3\uffa3o floresta prim\uffc3\uffa1ria e cupua\uffc3\uffa7uzal (Theobroma grandiflorum) de tr\uffc3\uffaas anos - e CB - sucess\uffc3\uffa3o floresta prim\uffc3\uffa1ria, pastagem de Brachiaria humidicola de oito anos e cupua\uffc3\uffa7uzal de tr\uffc3\uffaas anos. A sucess\uffc3\uffa3o floresta prim\uffc3\uffa1ria-pastagem-cupua\uffc3\uffa7uzal afeta negativamente o estoque de C do solo, com diminui\uffc3\uffa7\uffc3\uffa3o significativa da mat\uffc3\uffa9ria org\uffc3\uffa2nica e do C da biomassa microbiana do solo, ao passo que na sucess\uffc3\uffa3o floresta prim\uffc3\uffa1ria-cupua\uffc3\uffa7uzal ocorre diminui\uffc3\uffa7\uffc3\uffa3o apenas do C da biomassa microbiana. A floresta prim\uffc3\uffa1ria apresenta menor quociente metab\uffc3\uffb3lico e maior rela\uffc3\uffa7\uffc3\uffa3o C/N da biomassa, o que resulta em menor perda de carbono. O N da biomassa microbiana na camada de 0-10 cm, independentemente do manejo adotado, aumenta significativamente na \uffc3\uffa1rea de cupua\uffc3\uffa7uzal, ao passo que o N total diminui. A concentra\uffc3\uffa7\uffc3\uffa3o de am\uffc3\uffb4nio no solo diminui com a profundidade, de modo oposto ao verificado com o nitrato.</p>", "keywords": ["carbon", "04 agricultural and veterinary sciences", "15. Life on land", "floresta prim\u00e1ria", "carbono", "quociente metab\u00f3lico", "01 natural sciences", "nitrogen", "nitrog\u00eanio", "forest", "13. Climate action", "basal respiration", "respira\u00e7\u00e3o basal", "0401 agriculture", " forestry", " and fisheries", "metabolic quotient", "Theobroma grandiflorum", "0105 earth and related environmental sciences"], "contacts": [{"organization": "Moreira, Ad\u00f4nis, Malavolta, Eur\u00edpedes,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1590/s0100-204x2004001100008"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Pesquisa%20Agropecu%C3%A1ria%20Brasileira", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1590/s0100-204x2004001100008", "name": "item", "description": "10.1590/s0100-204x2004001100008", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1590/s0100-204x2004001100008"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2004-11-01T00:00:00Z"}}, {"id": "10.1590/s0100-204x2007001200013", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:19:23Z", "type": "Journal Article", "created": "2008-02-28", "title": "Atributos Biol\u00f3gicos Do Solo Sob Influ\u00eancia Da Cobertura Vegetal E Do Sistema De Manejo", "description": "<p>O objetivo deste trabalho foi avaliar os efeitos de culturas de cobertura e dos sistemas plantio direto (PD) e convencional (PC) sobre indicadores biol\uffc3\uffb3gicos do solo, cultivado com feijoeiro-comum, no inverno, sob irriga\uffc3\uffa7\uffc3\uffa3o. O experimento foi conduzido em Santo Ant\uffc3\uffb4nio de Goi\uffc3\uffa1s, GO, em Latossolo Vermelho distr\uffc3\uffb3fico textura argilosa. Culturas de cobertura foram implantadas anualmente no ver\uffc3\uffa3o, desde 2001, sendo utilizadas a braqui\uffc3\uffa1ria, guandu, milheto, capim-momba\uffc3\uffa7a, sorgo, estilosantes, braqui\uffc3\uffa1ria consorciada com milho, e mata nativa, como tratamento refer\uffc3\uffaancia. Em 2005, 60 dias ap\uffc3\uffb3s o corte das culturas de cobertura foi implantada a cultura do feijoeiro, cultivar BRS Valente, sob irriga\uffc3\uffa7\uffc3\uffa3o, com semeadura realizada em 16/6/2005 e colheita efetuada em 19/9/2005. Coletaram-se amostras de solo, na profundidade de 0-10 cm, em tr\uffc3\uffaas \uffc3\uffa9pocas: novembro de 2004 (pr\uffc3\uffa9-plantio das culturas de coberturas), junho (pr\uffc3\uffa9-plantio do feijoeiro) e julho (florescimento do feijoeiro) de 2005. Avaliaram-se a respira\uffc3\uffa7\uffc3\uffa3o basal, o carbono e o nitrog\uffc3\uffaanio da biomassa microbiana, a raz\uffc3\uffa3o carbono da biomassa microbiana/carbono org\uffc3\uffa2nico, a raz\uffc3\uffa3o nitrog\uffc3\uffaanio da biomassa microbiana/nitrog\uffc3\uffaanio total e o quociente metab\uffc3\uffb3lico do solo. Esses atributos biol\uffc3\uffb3gicos do solo s\uffc3\uffa3o influenciados pelas culturas de cobertura, manejo do solo e \uffc3\uffa9pocas de amostragem.</p>", "keywords": ["microbial quotient", "04 agricultural and veterinary sciences", "quociente metab\u00f3lico", "plantas de cobertura", "microbial biomass carbon", "basal respiration", "respira\u00e7\u00e3o basal", "carbono da biomassa microbiana", "0401 agriculture", " forestry", " and fisheries", "cover crops", "nitrog\u00eanio da biomassa microbiana", "microbial biomass nitrogen", "metabolic quotient", "quociente microbiano"], "contacts": [{"organization": "Silva, Mozaniel Batista da, Kliemann, Huberto Jos\u00e9, Silveira, Pedro Marques da, Lanna, Anna Cristina,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1590/s0100-204x2007001200013"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Pesquisa%20Agropecu%C3%A1ria%20Brasileira", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1590/s0100-204x2007001200013", "name": "item", "description": "10.1590/s0100-204x2007001200013", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1590/s0100-204x2007001200013"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2007-12-01T00:00:00Z"}}, {"id": "10.1590/s0100-204x2009000600012", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:19:23Z", "type": "Journal Article", "created": "2009-08-13", "title": "Biological Indicator Attributes Of Soil Quality Under Cultivated And Natural Pasture In The Pantanal Wetlands", "description": "<p>O objetivo deste trabalho foi avaliar as altera\uffc3\uffa7\uffc3\uffb5es nos atributos biol\uffc3\uffb3gicos do solo, em raz\uffc3\uffa3o da convers\uffc3\uffa3o floresta nativa pastagem cultivada e submiss\uffc3\uffa3o de pastagens nativas a sistema pastejo cont\uffc3\uffadnuo, um Neossolo Quartzar\uffc3\uffaanico, no Pantanal sul-mato-grossense. O trabalho consistiu avalia\uffc3\uffa7\uffc3\uffa3o tr\uffc3\uffaas florestas nativas; Brachiaria decumbens com diferentes idades de forma\uffc3\uffa7\uffc3\uffa3o, implantadas em substitui\uffc3\uffa7\uffc3\uffa3o \uffc3\uffa0s florestas nativas; e tr\uffc3\uffaas pastagens nativas (uma sob sistema de pastejo cont\uffc3\uffadnuo e duas sem pastejo por 3 e 19 anos). Foram coletadas amostras de solo nas profundidades 0-10 e 10-20 cm, em tr\uffc3\uffaas transectos de 100 m estabelecidos em cada ambiente de estudo, cada um dos quais constituiu uma repeti\uffc3\uffa7\uffc3\uffa3o. Os atributos avaliados foram: carbono org\uffc3\uffa2nico total (COT), carbono microbiano (Cmic), quociente microbiano (qMIC), respira\uffc3\uffa7\uffc3\uffa3o basal (RB) e quociente metab\uffc3\uffb3lico (qCO2). A substitui\uffc3\uffa7\uffc3\uffa3o da floresta nativa por pastagem cultivada promoveu redu\uffc3\uffa7\uffc3\uffa3o nos teores de COT, Cmic e qMIC e eleva\uffc3\uffa7\uffc3\uffa3o da RB; o sistema de pastejo cont\uffc3\uffadnuo em pastagem nativa promoveu redu\uffc3\uffa7\uffc3\uffa3o nos teores de COT e no Cmic. O Cmic \uffc3\uffa9 o atributo mais sens\uffc3\uffadvel \uffc3\uffa0s altera\uffc3\uffa7\uffc3\uffb5es impostas ao solo, pelos sistemas de pastagens cultivada e nativa, pois foi marcado por redu\uffc3\uffa7\uffc3\uffb5es mais expressivas.</p>", "keywords": ["microbial quotient", "carbono microbiano", "04 agricultural and veterinary sciences", "quociente metab\u00f3lico", "microbial activity", "01 natural sciences", "atividade microbiana", "microbial biomass carbon", "basal respiration", "respira\u00e7\u00e3o basal", "0401 agriculture", " forestry", " and fisheries", "metabolic quotient", "quociente microbiano", "0105 earth and related environmental sciences"], "contacts": [{"organization": "Cardoso, Evaldo Luis, Silva, Marx Leandro Naves, Moreira, F\u00e1tima Maria de Souza, Curi, Nilton,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1590/s0100-204x2009000600012"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Pesquisa%20Agropecu%C3%A1ria%20Brasileira", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1590/s0100-204x2009000600012", "name": "item", "description": "10.1590/s0100-204x2009000600012", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1590/s0100-204x2009000600012"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2009-06-01T00:00:00Z"}}, {"id": "10.1590/s1413-70542009000400010", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:19:23Z", "type": "Journal Article", "created": "2010-01-08", "title": "Indicadores Biol\u00f3gicos De Qualidade Do Solo Em Diferentes Sistemas De Uso No Brejo Paraibano", "description": "<p>A avalia\uffc3\uffa7\uffc3\uffa3o da qualidade do solo \uffc3\uffa9 uma ferramenta importante para monitorar a sua degrada\uffc3\uffa7\uffc3\uffa3o, bem como planejar a implanta\uffc3\uffa7\uffc3\uffa3o de pr\uffc3\uffa1ticas sustent\uffc3\uffa1veis de manejo. Neste trabalho, objetivou-se avaliar indicadores biol\uffc3\uffb3gicos de qualidade do solo em um Latossolo Amarelo distr\uffc3\uffb3fico, submetido a diferentes sistemas de uso em Areia-PB. Foram utilizadas amostras de solo coletadas na camada ar\uffc3\uffa1vel (0-20 cm) em \uffc3\uffa1reas de mata nativa, fruticultura, cana-de-a\uffc3\uffa7\uffc3\uffbacar, sucess\uffc3\uffa3o de cultivos, pastagem e cons\uffc3\uffb3rcio de culturas. Foram avaliados o carbono org\uffc3\uffa2nico total (COT), carbono da biomassa microbiana (CBM), quociente microbiano (qMic), respira\uffc3\uffa7\uffc3\uffa3o basal (RB) e quociente metab\uffc3\uffb3lico (qCO2). Os resultados obtidos indicaram que as \uffc3\uffa1reas sob gram\uffc3\uffadneas apresentaram uma tend\uffc3\uffaancia de manuten\uffc3\uffa7\uffc3\uffa3o do COT e menores redu\uffc3\uffa7\uffc3\uffb5es no CBM, entretanto, apresentaram elevados valores de qCO2, indicando a ocorr\uffc3\uffaancia de um processo degradativo. A \uffc3\uffa1rea sob fruticultura apresentou leves redu\uffc3\uffa7\uffc3\uffb5es no COT e CBM e baixos valores de qCO2, indicando que esse sistema pode estar se ajustando a um novo estado de equil\uffc3\uffadbrio. As \uffc3\uffa1reas sob sucess\uffc3\uffa3o de cultivos e cons\uffc3\uffb3rcio de culturas apresentaram as maiores redu\uffc3\uffa7\uffc3\uffb5es no COT e CBM e elevados valores de qCO2, demonstrando um elevado est\uffc3\uffa1gio de degrada\uffc3\uffa7\uffc3\uffa3o desses sistemas. Pode-se concluir que todos os sistemas agr\uffc3\uffadcolas estudados promoveram perda de qualidade do solo, sendo esse fato mais pronunciado nas \uffc3\uffa1reas sob manejo mais intensivo. O CBM e qCO2 mostraram-se bastantes sens\uffc3\uffadveis \uffc3\uffa0s altera\uffc3\uffa7\uffc3\uffb5es decorrentes do uso agr\uffc3\uffadcola do solo, apresentando grande potencial para estudos de sua qualidade.</p>", "keywords": ["2. Zero hunger", "microbial quotient", "microbial biomass", "Agroecosystem", "04 agricultural and veterinary sciences", "15. Life on land", "quociente metab\u00f3lico", "microbial activity", "Agroecossistema", "6. Clean water", "atividade microbiana", "biomassa microbiana", "0401 agriculture", " forestry", " and fisheries", "metabolic quotient", "quociente microbiano"]}, "links": [{"href": "https://doi.org/10.1590/s1413-70542009000400010"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Ci%C3%AAncia%20e%20Agrotecnologia", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1590/s1413-70542009000400010", "name": "item", "description": "10.1590/s1413-70542009000400010", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1590/s1413-70542009000400010"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2009-08-01T00:00:00Z"}}, {"id": "10.17221/446/2013-pse", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:19:27Z", "type": "Journal Article", "created": "2018-02-10", "title": "Soil Microbial Metabolism And Invertase Activity Under Crop Rotation And No-Tillage In North China", "description": "Soil samples were collected at both jointing and maturing stages of maize and wheat to compare the effects of 4-year no-tillage (NT) and conventional tillage (CT) on seasonal variations of microbial biomass carbon (C), metabolic quotient, and invertase activity in a sandy loam soil in North China. Soil invertase activity significantly increased (P &lt; 0.05) from summer to spring of the next year and then significantly decreased (P &lt; 0.05) from spring to summer. With a delay of about 3 months, soil microbial biomass C and basal respiration altered in a similar pattern, while microbial metabolic quotient changed on the contrary. Compared with CT, the NT practice significantly increased (P &lt; 0.05) soil organic C content, and tended to result in higher soil microbial biomass C and invertase activity, as well as lower soil microbial metabolic quotient, especially at the jointing stage of maize. Our results indicated that NT might play an important role in the improvement of soil microbial efficiency, especially at the maize seedling season.", "keywords": ["soil organic carbon", "2. Zero hunger", "seasonal variation", "microbial biomass", "basal respiration", "Plant culture", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "metabolic quotient", "SB1-1110"]}, "links": [{"href": "https://doi.org/10.17221/446/2013-pse"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Plant%2C%20Soil%20and%20Environment", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.17221/446/2013-pse", "name": "item", "description": "10.17221/446/2013-pse", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.17221/446/2013-pse"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2013-11-30T00:00:00Z"}}, {"id": "10.5424/fs/20112003-11458", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:23:02Z", "type": "Journal Article", "created": "2011-12-21", "description": "<p>Mixed stands with nitrogen fixing secondary species can improve the vigour and the stand environment of the targeted species. The aim of this study was to better understand the effect of the consociation of a N-fixing species (black locust) with a broadleaf quality timber production (wild cherry). The study was conducted in 11 year old plantations located in the Northeast of Portugal. The treatments considered were: pure black locust, pure wild cherry and mixture of wild cherry and black locust. Each plot had six lines with 12 trees and a buffer strip line. The samplings were collected on the plantation line within a radius of 50 to 100 cm from the tree. In each plot we measured soil N mineralization dynamic, soil microbial biomass carbon (MBC) and nitrogen (MBN), microbial quotient (MBC/Corg), metabolic quotient (qCO2), microbial respiration and dehydrogenase activity. Results showed a positive impact of the black locust species on the supply of nitrogen to the soil. The net N-mineralization rates were, at the end of this study, about three times greater in the pure black locust than in the pure wild cherry and about two times greater in the mixture than in the pure wild cherry. MBC and cumulative soil respiration were higher in the mixture than in the pure cherry plantation soil which may reflect positive changes in the soil environment.</p>", "keywords": ["Accessory trees", "2. Zero hunger", "0106 biological sciences", "dehydrogenase activity", "Metabolic quotient", "actividad deshidrogenasa", "Soil respiration", "04 agricultural and veterinary sciences", "Prunus avium", "15. Life on land", "soil respiration", "01 natural sciences", "Prunus avium; Robinia pseudoacacia; accessory trees; soil respiration; dehydrogenase activity; metabolic", "Robinia pseudoacacia", "\u00e1rboles accesorios", "metabolic", "accessory trees", "Dehydrogenase activity", "0401 agriculture", " forestry", " and fisheries", "Prunus avium; Robinia pseudoacacia; \u00e1rboles accesorios; respiraci\u00f3n del suelo; actividad deshidrogenasa;", "respiraci\u00f3n del suelo"]}, "links": [{"href": "https://doi.org/10.5424/fs/20112003-11458"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Forest%20Systems", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5424/fs/20112003-11458", "name": "item", "description": "10.5424/fs/20112003-11458", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5424/fs/20112003-11458"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2011-12-04T00:00:00Z"}}], "links": [{"rel": "self", "type": "application/geo+json", "title": "This document as GeoJSON", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=Metabolic+quotient&f=json", "hreflang": "en-US"}, {"rel": "alternate", "type": "text/html", "title": "This document as HTML", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=Metabolic+quotient&f=html", "hreflang": "en-US"}, {"rel": "collection", "type": "application/json", "title": "Collection URL", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main", "hreflang": "en-US"}, {"type": "application/geo+json", "rel": "first", "title": "items (first)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=Metabolic+quotient&", "hreflang": "en-US"}, {"rel": "last", "type": "application/geo+json", "title": "items (last)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=Metabolic+quotient&offset=13", "hreflang": "en-US"}], "numberMatched": 13, "numberReturned": 13, "distributedFeatures": [], "timeStamp": "2026-05-25T12:10:37.477234Z"}