筛选
科学数据
统计数据
共检索到169条 ,权限内显示50条;
An evaluation of soil sampling methods in support of precision agriculture in Northeastern North Carolina
- 负责人：
- 关键词：
- Geographic Information Science and Technology precision agriculture soil sampling GIS North Carolina
- DOI：
- doi:10.25549/usctheses-c3-377297
- 摘要：
- . In this study, multiple precision agriculture grid and zone\u2010based soil sampling methods and procedures are utilized on a farm in northeastern North Carolin
Data from: Optimal soil carbon sampling designs to achieve cost-effectiveness: a case study in blue carbon ecosystems
- 负责人：
- DOI：
- doi:10.5061/dryad.qj472r2
- 摘要：
- recommendations can help develop standardised methods for sampling programs to quantify soil C stocks at national scales.
Data from: Flow of CO2 from soil may not correspond with CO2 concentration in soil
- 负责人：
- DOI：
- doi:10.5061/dryad.41sk145
- 摘要：
- The relationship between CO2 flow from soil and soil CO2 concentration was investigated at 72 permanent sampling points at two forested post-mining
Data from: Methodological considerations for detection of terrestrial small-body salamander eDNA and implications for biodiversity conservation
- 负责人：
- DOI：
- doi:10.5061/dryad.tc29r
- 摘要：
- . However, eDNA was not detected in soil samples collected from directly underneath wild-caught living salamanders. Salamander genomic DNA (gDNA
Data from: Recommendations for assessing earthworm populations in Brazilian ecosystems
- 负责人：
- DOI：
- doi:10.5061/dryad.4md0s64
- 摘要：
- data on sampling date, geographic coordinates, vegetation, soil type, land use management (including tillage, fertilizer and pesticide use), size, numb
Soil data collected for a study on the Impact of livestock grazing intensity on the plant diversity of species-rich montane grassland in the north
- 负责人：
- Thamsanqa Alfred Shezi;;SAEON Grasslands-Forests-Wetlands Node
- DOI：
- doi:10.15493/saeon.gfw.10000003
- 摘要：
- of P, K, Ca, N, Mg, Zn, Mn, Cu, exchangeable acidity, acidity saturation, total cations, pH (KCl), organic carbon and percent clay. Soil form at each sampling location
Near-infrared spectra for the AfSIS Sentinel Sites in Tanzania
- 负责人：
- CIAT Data And Research Methods;;International Center For Tropical Agriculture
- 关键词：
- DOI：
- doi:10.7910/dvn/yy9eki
- 摘要：
- ly, and pooled (composited) into one sample for each plot and depth, resulting in a total of 320 standard soil samples per sentinel site (V?gen et al., 2010
Data from: Fine-scale spatial homogenization of microbial habitats: a multivariate index of headwater wetland complex condition
- 负责人：
- DOI：
- doi:10.5061/dryad.4045sq6
- 摘要：
- as indicators of wetland condition and provides insights into the sample sizes and scales at which soil sampling should occur during assessments. Future
Nitrous oxide fluxes and associated soil measurements from a mixed livestock farm in central Scotland (2012-2013)
- 负责人：
- Dr. Nicholas Cowan;;Environmental Information Data Centre
- DOI：
- doi:10.5285/54edbdcf-086e-40a7-b2cc-c1e4fcbfbbbc
- 摘要：
- of sampling. NH4+ and NO3- was extracted from the soil samples using 50 ml of 1 M KCl solution for 15 g of soil. The mixture was filtered usi
Post Chernobyl surveys of radiocaesium in soil, vegetation, wildlife and fungi in Great Britain
- 负责人：
- Professor Nick Beresford;;UK Centre For Ecology & Hydrology;;Environmental Information Data Centre
- 关键词：
- soil Radioecology deposition radioactive contamination radionuclide accident radiocaesium Chernobyl North Wales
- DOI：
- doi:10.5285/7a5cfd3e-0247-4228-873d-5be563c4ee3b
- 摘要：
- on a high resolution germanium detector. Soil type was noted at each site (Soil survey 1983). Soil samples were allocated to a series of textural categories (Clay
