SGS-LTER Historical LTER Soil water - neutron probe: field data (1985-1992) in Owl Creek on the Central Plains Experimental Range, Nunn, Colorado, USA, ARS Study Number 10

This data package was produced by researchers
working on the Shortgrass Steppe Long Term
Ecological Research (SGS-LTER) Project,
administered at Colorado State University.
Long-term datasets and background information
(proposals, reports, photographs, etc.) on the
SGS-LTER project are contained in a comprehensive
project collection within the Digital Collections
of Colorado
(http://digitool.library.colostate.edu/R/?func=collections&collection_id=3429).
The data table and associated metadata document,
which is generated in Ecological Metadata
Language, may be available through other
repositories serving the ecological research
community and represent components of the larger
SGS-LTER project collection. Long-term (1985-1992) dynamics and spatial
variations in soil water below the evaporative
zone were evaluated for a shortgrass steppe with a
low and variable precipitation regime. Each of
sandy loam, clay loam, and two sandy clay loam
sites compromised a toposequence with upland,
midslope, and lowland positions. Soil water was
monitored at 15cm intervals providing estimates
covering 22.5 to 97.5 cm depths. Soil water
throughout the profile was highest in the clay
loam and lowest in the sandy loam. However, stored
soil water did not vary systematically among slope
positions. Additional information and referenced materials can be found:
http://hdl.handle.net/10217/82912

本数据包由从事短草草原长期生态研究（Shortgrass Steppe Long Term Ecological Research, SGS-LTER）项目的研究人员编制，该项目由科罗拉多州立大学负责管理。SGS-LTER项目的长期数据集及相关背景资料（包括项目申请书、研究报告、影像资料等）均收录于科罗拉多州数字馆藏（Digital Collections of Colorado）的综合项目馆藏中，馆藏访问链接为：http://digitool.library.colostate.edu/R/?func=collections&collection_id=3429。本数据集包含的数据表及以生态元数据语言（Ecological Metadata Language, EML）生成的配套元数据文档，亦可通过服务于生态研究共同体的其他学术仓储获取，二者均为SGS-LTER综合项目馆藏的组成部分。本研究针对具有降水匮乏且波动显著的降水格局的短草草原生态系统，分析了1985-1992年间蒸发带以下土壤水分的长期动态变化与空间变异特征。研究涉及的砂质壤土、黏壤土以及两个砂质黏壤土样地，均构成了包含上坡、中坡与下坡位置的地形序列。土壤水分以15厘米为监测间隔，监测覆盖深度范围为22.5至97.5厘米。结果显示，整个土壤剖面的含水量以黏壤土样地最高，砂质壤土样地最低，但土壤储水量并未随坡位呈现系统性变化。更多相关信息及参考资料可通过以下链接获取：http://hdl.handle.net/10217/82912