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15 results for “leaf litter experiment”
Forest Transition Experiment - Leaf Litter in a Coastal Virginia Forest
Leaf litter collected in basket-based litter traps in forest transition plots
Data for a leaf litter decomposition study and soil density fractionation analysis at a whole-watershed fertilization experiment in a temperate forest
To assess how elevated N deposition influences leaf litter decomposition dynamics and soil organic matter formation in a temperate deciduous forest, we coupled a reciprocal transplant leaf litter decomposition study with an analysis of the distribution of soil organic matter in mineral associated and particulate organic matter fractions at a long-term, whole-watershed, N fertilization experiment. We found that nearly 30 years of N additions slowed decay rates by about 11% for leaf litter decomposed in the fertilized watershed, regardless of the watershed from which the initial litter was collected. An apparent consequence of the altered rates of decomposition was that the soil in the fertilized watershed had about a 40% greater fraction of SOM in light particulate organic matter compared to the reference watershed, which was positively correlated with the bulk soil carbon to nitrogen ratio. Collectively, our results suggest that under conditions of N saturation, the physical transfer pathway of SOM formation is favored, which can have important implications for the future of the soil organic matter stock and nutrient cycling.
Leaf litter decomposition experiment In QPA and QPB - 2017-2019
We ran a leaf litter decomposition experiment over a seven-week period in each of three different years: 2017, 2018, and 2019. To assess leaf decomposition rates, we incubated leaf packs of freshly abscised Tabonuco (Dacryodes excelsa) leaves in pools in each of our two study stream reaches, and retrieved them at intervals over a seven-week period. We attempted to run experiments before onset of heavy rains which often occur in September-December. We chose to use leaves of Tabonuco for experimental leaf packs because it is a dominant riparian tree species along both of our study reaches. This dataset can be used to asses ecosystem function within tropical headwater streams. Support for this work was provided by grants BSR-8811902, DEB-9411973, DEB-9705814 , DEB-0080538, DEB-0218039 , DEB-0620910 , DEB-1239764, DEB-1546686, and DEB-1831952 from the National Science Foundation to the University of Puerto Rico as part of the Luquillo Long-Term Ecological Research Program. Additional support provided by the University of Puerto Rico and the International Institute of Tropical Forestry, USDA Forest Service.
Leaf Litter Decomposition Experiment in QPA and QPB – Insects - 2019
Macroinvertebrates collected from Tabonuco leaf packs associated with 50-day in-situ leaf litter decomposition experiment from 2019-07-1 – 2019-08-20 in Quebrada Prieta A and Quebrada Prieta B. This data may be used to examine insect colonization of leaf packs within streams. Support for this work was provided by grants BSR-8811902, DEB-9411973, DEB-9705814 , DEB-0080538, DEB-0218039 , DEB-0620910 , DEB-1239764, DEB-1546686, and DEB-1831952 from the National Science Foundation to the University of Puerto Rico as part of the Luquillo Long-Term Ecological Research Program. Additional support provided by the University of Puerto Rico and the International Institute of Tropical Forestry, USDA Forest Service.
leaf litter decomposition experiment In QPA and QPB - visual shrimp observations 2019
Visual shrimp observations from pools associated with 2019 in-situ leaf litter decomposition experiment. Shrimp abundance was recorded over two-minute intervals within pools in Quebrada Prieta A and Quebrada Prieta B. Support for this work was provided by grants BSR-8811902, DEB-9411973, DEB-9705814 , DEB-0080538, DEB-0218039 , DEB-0620910 , DEB-1239764, DEB-1546686, and DEB-1831952 from the National Science Foundation to the University of Puerto Rico as part of the Luquillo Long-Term Ecological Research Program. Additional support provided by the University of Puerto Rico and the International Institute of Tropical Forestry, USDA Forest Service.
Figure 1 in Soil quality, leaf litter quality, and microbial biomass interactively drive soil respiration in a microcosm experiment
Figure 1. Principal components analysis of (A) soil quality and (B) leaf litter quality across the experimental treatments (Table S1-2). Soil quality was quantified as a combination of soil pH, C, N, and C:N; leaf litter quality was quantified as a combination of leaf Ca, C, lignin, Mg, N, P, C:N, C:P, and N:P. Soil and leaf litter were collected from Hainich National Park, Germany.
Long-term Carbon and Nitrogen, and Phosphorus Dynamics of Leaf and Fine Root Litter project (LIDET-Long-term Intersite Decomposition Experiment Team) data for the ARC, Arctic LTER. 1990 to 2000.
This file is from the Long-term Carbon and Nitrogen, and Phosphorus Dynamics of Leaf and Fine Root Litter project (LIDET-Long-term Intersite Decomposition Experiment Team). This file contains only the Arctic LTER data. In particular the mass looses over the ten year study. Three types of fine roots (graminoid, hardwood, and conifer), six types of leaf litter (which ranged in lignin/nitrogen ratio from 5 to 75), and wooden dowels were used for litter incubations over a ten year period.
Murphy Dome: Moss (Hylocomium splendens) biomass results from a moss transplant and leaf litter manipulation experiment in three pairs of adjacent black spruce and birchs stands.
This dataset contains moss (Hylocomium splendens) growth from individual moss shoots within moss transplants in black spruce and paper birch stands. 10 mosses were marked with PVC beads in June 2013 and then each moss segment was measured in the field in June and September of 2013, 2014 and June and August 2015. All samples were harvested in 2015 and their dry weights were calculated. Moss biomass from other time periods were estimated using allometric equations. The data was collected in three blocks (A, B, and C) of adjacent black spruce and paper birch stands at Murphy Dome (access via Cache Creek road).
Murphy Dome: Moss (Hylocomium splendens and Pleurozium schreberi) biomass results from a birch leaf litter and leachates manipulation experiment in a black spruce stand.
This dataset contains moss (Hylocomium splendens and Pleurozium schreberi) growth from individual moss shoots in a black spruce stand. 10 H. splendens and 5 P. schreberi were marked with PVC beads and measured in September 2014 and then each moss segment was measured again August 2015. All samples were harvested in 2015 and their dry weights were calculated. Moss biomass from other time periods were estimated using allometric equations. The data was collected in the spruce stands of block A only at Murphy Dome (access via Cache Creek road).
Murphy Dome: Covariates measured on the sampling units of moss (Hylocomium splendens) from a moss transplant and leaf litter manipulation experiment in three pairs of adjacent black spruce and birchs stands. This data is associated to the file MD_MossBiomass_2013-2015.xlsx
This data contains sampling unit level variables associated with the moss measurements from MD_MossBiomass_2013-2015.txt. It include the percent cover of leaf litter through time, fungus cover in 2015, moisture in 2015, and percent openness of the tree canopy measured in July 2014.
Murphy Dome: Moss-associated N-fixation measurements in a moss transplant and leaf litter manipulation experiment in black spruce and paper birch stands
This dataset contains nitrogen fixation measurements from the moss transplant experiment in the state forest on Murphy Dome (Cache Creek Road). Fixation rates were measured in August 2015 in two moss species: Hylocomium splendens and Pleurozium schreberi in black spruce and paper birch stands and associated with leaf litter manipulations.
Data from: Deadwood supports carnivores in leaf litter communities in a bark beetle-attacked deadwood simulation experiment
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Effects of the fungicide penconazole on the leaf litter associated aquatic mycobiome in artificial stream channel and flask experiments
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Leaf litter mixture experiment in a tropical montane rainforest
<p>In this dataset are included values of mass loss, microbial biomass, basal respiration, metabolic quotient, and the slope of microbial growth after glucose addition, as well as the abundance of microarthropods (Acari and Collembola) of a litter mixture experiment in a tropical montane rainforest Ecosystem. In the experiment leaves of six native tree species (<i>Cecropia andina</i>, <i>Dictyocaryum lamarckianum</i>, <i>Myrcia pubescens</i>, <i>Cavendishia zamorensis</i>, <i>Graffenrieda emarginata, </i>and <i>Clusia </i>spp.)<i> </i>were used to fill litterbags and were incubated in monocultures and all possible two and four species combinations in the field for 6 and 12 months.</p>
Leaf litter mixture experiment in a tropical montane rainforest
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Allen Brain Atlas
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International Brain Laboratory public data
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OpenNeuro
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