Simplification and Recovery of Soil Biocomplexity following Agricultural Cultivation and Forest Logging

农业耕作和森林采伐后土壤生物复杂性的简化和恢复

• 批准号: 0120698
• 负责人: Daniel Richter
• 金额: $ 8.2万
• 依托单位: Duke University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-10-01 至 2003-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0120698&HistoricalAwards=false
• 关键词: Simplification; Recovery; Soil; Biocomplexity; following

On several billions of hectares, modern land uses are transforming soil biocomplexity, the interactions between the extremely diverse soil biota and biogeochemical pattern and process. Regrettably, our understanding of this transformation lags far behind our impact. This award constitutes an ambitious planning grant, composed of a variety of the nation's leading soil biologists and biogeochemists as well as highly talented young scientists, to evaluate how and why soil biocomplexity is altered by long-practiced land uses. The project features the soils of the old cotton belt of the southern United States, soils highly disturbed by long-continued agriculture and forestry. The team will meet on two occasions as a full group to conceptualize a model of land use impacts on soil biota and biogeochemistry, and perform preliminary work on novel collections and samples from the long-term Calhoun Experimental Forest, located near Spartanburg, South Carolina. The team will apply new expertise in a variety of complex analytical and sampling techniques.

在数十亿公顷的土地上，现代土地利用正在改变土壤生物复杂性，即极其多样化的土壤生物群与地球化学模式和过程之间的相互作用。遗憾的是，我们对这种转变的理解远远落后于我们的影响。 该奖项是一项雄心勃勃的规划拨款，由全国领先的土壤生物学家和土壤化学家以及才华横溢的年轻科学家组成，以评估长期实践的土地使用如何以及为什么改变土壤生物复杂性。该项目以美国南部老棉花带的土壤为特色，这些土壤受到长期农业和林业的严重干扰。该小组将作为一个完整的小组举行两次会议，以概念化土地利用对土壤生物群和土壤地球化学影响的模型，并对位于南卡罗来纳州斯帕坦堡附近的长期卡尔霍恩实验森林的新收集和样本进行初步工作。该小组将在各种复杂的分析和取样技术方面运用新的专门知识。