{"type": "FeatureCollection", "features": [{"id": "10.5061/dryad.fn2z34v2d", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-20T16:19:30Z", "type": "Dataset", "created": "2023-12-05", "title": "Data from: Contrasting drivers of aboveground woody biomass and aboveground woody productivity in lowland forests of Colombia", "description": "unspecified# Contrasting drivers of aboveground woody biomass and aboveground woody  productivity in lowland forests of Colombia  Tree census data collected  at 39 1-ha forest inventory plots situated in the Orinoquia region and  Amazonia region of Colombia. Plots were censused between 2005 and 2021. We  aim to assess the importance of abiotic and biotic factors in controlling  the variation in aboveground biomass stocks and fluxes. In each plot, all  stems of trees and palms (hereafter trees) with tree diameter at breast  height (DBH; tree diameter at 1.3 m height) \u2265 10 cm were measured. The  aboveground biomass (AGB) of each tree was estimated using the allometric  equation proposed by Chave et al. (2014). All plots were censused at least  twice (elapsed time ranged between 2 and 10 years), and the aboveground  woody productivity (AWP in Mg ha-1 y-1), and aboveground woody residence  time (AWRT in y) of each plot were estimated. To estimate soil fertility,  samples of soil A horizon (i.e., the mineral soil after removing the  organic layer) were collected from a minimum of five points in each plot  at a depth of 10\u201330 cm. The five samples from each plot were then combined  and analyzed. We calculated three metrics of phylogenetic diversity:  phylogenetic diversity *sensu stricto* (PD), Net Relatedness Index (NRI)  and the Nearest Taxon Index (NTI). NRI and NTI were weighted by abundance.  The PD of each plot was calculated as the total sum of the phylogenetic  branch lengths connecting the co-occurring species in each plot along the  minimum spanning path to the root of the tree. The NRI and NTI are based  on the mean pairwise distance and the mean nearest pairwise distance,  respectively. We found there were significant differences between flooded  and Tierra firme forests in Aboveground biomass and Aboveground Woody  Residence Time. These forests are gaining carbon as shown by a positive  Aboveground biomass net change. The difference in Aboveground biomass net  change between flooded and Tierra firme forests was marginally  significant, being negative and with higher variability in flooded than in  Tierra firme forests. Diversity, forest structure, climate, and soils were  independently correlated with the spatial variation of the Aboveground  biomass. when we sequentially removed the variables representing each  independent hypothesis, forest structure, here represented by the number  of trees with DBH \u2265 70 cm (D70) and mean wood density, had a pure total  explained variation of 40 % and the strongest effect in determining the  Aboveground biomass All independent variables selected were correlated  with the spatial variation of the Aboveground biomass in Tierra firme. The  full models for all plots and Tierra firme employed to assess the drivers  of Aboveground productivity included soils and forest structure as the  most important factors. In both cases, P, Mg, and the number of big trees  (D70) were selected as the key drivers of Aboveground productivity. File  data set structure: ID plot number, Plot name, Longitude (\u25e6), Latitude  (\u25e6), Flooded/Terra firme, Mean annual temperature (\u25e6C)(MAT), Total annual  precipitation (mm y-1)(TAP), Precipitation seasonality (PS), Number of  individuals (ha-1)(Density), Mean wood density (gr cm-3)( WD_mean),  Aboveground biomass (Mg ha-1)(AGB), Aboveground productivity (Mg ha-1  y-1)(AWP), Net carbon change (Mg ha-1 y-1)(Net_change), Elapsed time  between censuses (y)( Time (y-1)), Number of genus per plot (Genus),  Number of species per plot (Sp), Inverse of Simpson index (Simpson_inv),  Net Relatedness Index (NRI), Nearest Taxon Index (NTI), Phylogenetic  Diversity (PD), soil pH (pH), Calcium (mg kg-1)(Ca), Potasium\u00a0 (mg  kg-1)(K), Magnesium\u00a0 (mg kg-1)(Mg), Sodium\u00a0 (mg kg-1)(Na), Aluminium (mg  kg-1)(Al), Cation Excahnge Capacity (CEC), Phosporous (mg kg-1)(P),  Organic carbon (%)(CO), Number of trees with DBH \u2265 70 cm ha-1 (D70),  Maximum DBH (cm)(Dmax) Note: Plot number in red are the two plots selected  from the 25-ha Amacayacu plot with aboveground biomass maximum and minimum  values. In blue those for aboveground woody productivity", "keywords": ["productivity-diversity relationship", "FOS: Biological sciences", "soil fertility", "Orinoquia", "phylogenetic diversity", "variance partitioning", "Amazon"], "contacts": [{"organization": "Casta\u00f1o, Nicolas, Pe\u00f1a, Miguel, Gonzalez-Caro, Sebastian, Aldana, Ana, Casas, Luisa, Correa, Diego, Gonz\u00e1lez-Abella, Juan, Pelaez, Natalia, Stevenson, Pablo, Sua, Sonia, Zuleta, Daniel, Duque, Alvaro,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.5061/dryad.fn2z34v2d"}, {"rel": "self", "type": "application/geo+json", "title": "10.5061/dryad.fn2z34v2d", "name": "item", "description": "10.5061/dryad.fn2z34v2d", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5061/dryad.fn2z34v2d"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2024-01-24T00:00:00Z"}}, {"id": "10.4141/s98-081", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-20T16:19:23Z", "type": "Journal Article", "created": "2011-04-23", "title": "Effects Of Forest Soil Compaction And Organic Matter Removal On Leaf Litter Decomposition In Central British Columbia", "description": "<p> As part of the long-term soil productivity study in central British Columbia, we examined the effect of soil compaction and organic matter removal on trembling aspen (Populus tremuloides Michx.) litter decomposition. We compared three levels of organic matter removal (stem-only, whole-tree harvest, and scalped mineral soil) and two levels of compaction (no compaction and heavy compaction) in a factorial design replicated as blocks on three sites. Whole-tree harvesting significantly increased litter decomposition rates compared to stem-only (by 36%) and scalped (by 41%) treatments. Soil compaction had inconsistent effects on decomposition rates (k) for forest floor and scalped treatments and, overall, did not significantly affect litter decomposition rates. Litter on scalped plots had higher rates of nutrient translocation than litter on forest floors. We found the treatments altered soil heat sums, so changes in temperatures at the soil surface might be partly responsible for the changes in decomposition rates. We could not detect differences in soil mesofauna populations collected from the litter bags, so treatment effects on fauna probably had less influence than microclimate on decomposition rates. The effects of these early changes in litter decomposition on biological productivity will be part of the ongoing long-term soil productivity study. Key words: Litter decomposition, soil compaction, scalping, whole-tree harvest, nutrient translocation </p>", "keywords": ["0106 biological sciences", "leaf-litter-decomposition: organic-matter-removal", "nutrients-", "Environmental-Sciences)", "01 natural sciences", "harvesting-", "translocation-", "populus-tremuloides", "soil-organic-matter", "Spermatophytes-", "Spermatophyta-", "Angiosperms-", "Angiospermae-", "Plants-", "heat-sums", "04 agricultural and veterinary sciences", "Soil-Science", "British-Columbia (Canada-", "North-America", "Nearctic-region)", "compaction-", "soil-compaction", "decomposition-", "microclimate-", "Vascular-Plants", "poplars-", "forests-", "movement-in-soil", "treatment-", "sustainability-", "Populus-tremuloides [trembling-aspen] (Salicaceae-)", "british-columbia", "Salicaceae-: Dicotyledones-", "land-productivity", "organic-matter", "Plantae-", "forest-litter", "productivity-", "forestry-practices", "forestry-", "mineralization-", "forest-soils", "mineral-soils", "removal-", "15. Life on land", "logging-effects", "Terrestrial-Ecology (Ecology-", "0401 agriculture", " forestry", " and fisheries", "Dicots-", "temperature-", "soil-fauna"], "contacts": [{"organization": "Kranabetter, J.M., Chapman, B.K.,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.4141/s98-081"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Canadian%20Journal%20of%20Soil%20Science", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.4141/s98-081", "name": "item", "description": "10.4141/s98-081", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.4141/s98-081"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": 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