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Abstract
Zachary Brecheisen, Dan Richter, Mac Callaham, Will Cook, and Paul Heine have sampled and analyzed soils from 15 locations in the Calhoun CZO. Sampling is underway, though all soil texture samples have been collected and are in process. The first quarterly invertebrate sampling occurred in September 2015. Bulk density, Ksat, and water stable aggregate sampling and analyses will occur in 2016. This work targets 3 different land forms: flat uplands, mid-slopes, and steeper slopes in 3 different land use comparisons. The land uses consist of 3 reference hardwood forests minimally degraded by human activity, 3 old-field secondary succession pine forests >60 yo, and 1 pseudo-replicated agricultural plot which has been, to the best of our knowledge, continually cultivated from the 1930’s at the latest. The goal of this sampling is to identify physical anthropogenic signals in the upper meters in the soil profile of cultivated lands and to evaluate their persistence or lack thereof in old-field pine forests relative to reference hardwoods.
Subject Keywords
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Content
ReadMe.md
CCZO -- Soil Porosity, Soil Invertebrates -- Calhoun CZO -- (2015-2017)
OVERVIEW
Description/Abstract
Zachary Brecheisen, Dan Richter, Mac Callaham, Will Cook, and Paul Heine have sampled and analyzed soils from 15 locations in the Calhoun CZO. Sampling is underway, though all soil texture samples have been collected and are in process. The first quarterly invertebrate sampling occurred in September 2015. Bulk density, Ksat, and water stable aggregate sampling and analyses will occur in 2016. This work targets 3 different land forms: flat uplands, mid-slopes, and steeper slopes in 3 different land use comparisons. The land uses consist of 3 reference hardwood forests minimally degraded by human activity, 3 old-field secondary succession pine forests >60 yo, and 1 pseudo-replicated agricultural plot which has been, to the best of our knowledge, continually cultivated from the 1930’s at the latest. The goal of this sampling is to identify physical anthropogenic signals in the upper meters in the soil profile of cultivated lands and to evaluate their persistence or lack thereof in old-field pine forests relative to reference hardwoods.
Creator/Author
Brecheisen, Zachary S..|Callaham, M.A.|Heine, P.R.|Cook, Charles W.|Richter, Daniel deB.
CZOs
Calhoun
Contact
Zachary Brecheisen, Nicholas School of the Environment, Duke University, Box 90328 Durham NC 27708, zbrecheisen@gmail.com
SUBJECTS
Disciplines
Soil Science / Pedology|Biology / Ecology
Topics
Soil Porosity|Soil Invertebrates
Keywords
Bulk density|soil texture|K-sat|invertebrates|aggregates|porosity
Variables
File1: Site|Depth|Bulk_density|%sand|%silt|%clay|K-sat|aggregate_stability; File2: Site|date|treatment|litter_or_mineral _soil|invertebrate_functional_group|Invertebrate_genus|invertebrate_spp.
Variables ODM2
Soil aggregate stability|Bulk density|Clay|Depth, soil|Soil invertebrates|Hydraulic Conductivity|Plant litter|Sand|Silt
TEMPORAL
Date Start
2015-09-22
Date End
2017-06-20
SPATIAL
Field Areas
Calhoun CZO Research Area 1|Calhoun CZO Research Area 4|Calhoun CZO Research Area 7
Location
Calhoun CZO
North latitude
34.61615
South latitude
34.53911
West longitude
-81.76541
East longitude
-81.67057
REFERENCE
Citation
Z.S. Brecheisen, M.A. Callaham, P.R. Heine, C.W. Cook, D. deB Richter, 2015, Soil eco-porosity analyses across landuse histories at the CCZO,
CZO ID
4660
COMMENTS
Comments
Properties analyzed/measured include water stable aggregates, texture, bulk density, Ksat, soil macroinvertebrates. Biological/invertebrate samples are collected from the litter and upper 30cm of the soil profile in a 30x30cm cube. Water stable aggregates, bulk density, and Ksat will be derived for at least the upper 2m of the profile. Soil texture is calculated from the surface to 5m depth. All of these analyses are performed at the same 15 locations as the gas sampling wells.
Additional Metadata
Name | Value |
---|---|
czos | Calhoun |
czo_id | 4660 |
citation | Z.S. Brecheisen, M.A. Callaham, P.R. Heine, C.W. Cook, D. deB Richter, 2015, Soil eco-porosity analyses across landuse histories at the CCZO, |
comments | Properties analyzed/measured include water stable aggregates, texture, bulk density, Ksat, soil macroinvertebrates. Biological/invertebrate samples are collected from the litter and upper 30cm of the soil profile in a 30x30cm cube. Water stable aggregates, bulk density, and Ksat will be derived for at least the upper 2m of the profile. Soil texture is calculated from the surface to 5m depth. All of these analyses are performed at the same 15 locations as the gas sampling wells. |
keywords | Bulk density, soil texture, K-sat, invertebrates, aggregates, porosity |
variables | File1: Site, Depth, Bulk_density, %sand, %silt, %clay, K-sat, aggregate_stability; File2: Site, date, treatment, litter_or_mineral _soil, invertebrate_functional_group, Invertebrate_genus, invertebrate_spp. |
disciplines | Soil Science / Pedology, Biology / Ecology |
How to Cite
This resource is shared under the Creative Commons Attribution CC BY.
http://creativecommons.org/licenses/by/4.0/
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