Dissertation Research: Importance of Plant Species Composition to Ecosystem Properties in the Central Great Plains Grassland

论文研究：中部大平原草原植物物种组成对生态系统特性的重要性

• 批准号: 9213180
• 金额: $ 1.1万
• 依托单位: Colorado State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-08-15 至 1995-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9213180&HistoricalAwards=false
• 关键词: Dissertation; Research; Importance; Plant; Species

This project will test ideas about the effects of individual plant species and lifeforms on ecosystem function in the central grassland region. The focus will be on the influence of species and lifeforms on soil resource availability using three levels of investigation: process studies at the Central Plains Experimental Range, site comparisons across a regional gradient, and simulation analyses. Process studies will focus on elucidating the relationships among plant litter chemistry, biomass allocation, soil organic matter and nutrient supply. A comparative study across a regional gradient will test the extent to which environmental controls may mitigate or increase the importance of species characteristics. Finally, the investigators will conduct simulation analyses to evaluate the potential influence of changing species composition over time at several sites that cross the regional gradient; this simulation will test the long-term consequences of patterns observed in the field.

这个项目将测试关于单个植物的影响的想法， 物种和生命形式对中部生态系统功能的影响 草原区 重点将放在物种的影响上 和生命形式对土壤资源可用性的影响， 调查：中原实验工艺研究 跨区域梯度的范围、地点比较和模拟 分析。 工艺研究将侧重于阐明 植物凋落物化学，生物量分配， 土壤有机质和养分供应。 比较研究 将测试在多大程度上 环境控制可能会减轻或增加 物种特征 最后，调查人员将 模拟分析，以评估 随着时间的推移，在几个地点， 区域梯度;这个模拟将测试长期 在实地观察到的模式的后果。