Dissertation Research: The Effect of Cultivation on Biogeochemical Cycles and the Community Following Shifting Cultivation in West Kalimantan, Indonesia

论文研究：印度尼西亚西加里曼丹轮耕后耕作对生物地球化学循环和群落的影响

• 批准号: 9623837
• 负责人: William Schlesinger
• 金额: $ 0.95万
• 依托单位: Duke University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-05-15 至 1998-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9623837&HistoricalAwards=false
• 关键词: Dissertation; Research; Effect; Cultivation; Biogeochemical

SCHLESINGER DEB-9623837 The goal of this research is to determine how cultivation history affects plant colonization and competition in forest patches . We hypothesize that at the local scale repeated slash-and-burn agriculture will reduce the availability of limiting soil nutrients, such as phosphorous, for plant growth. At the landscape scale, changes in the spatial and temporal distribution of seed sources over the course of many slash-and-burn cycles will affect which species arrive at a given patch. Both observational studies and experimentation in lab and field will be used to test these hypotheses. The conversion of primary forest to agricultural land is vital to the well-being of millions of rural poor in the tropics. It is also the sources of biodiversity loss and loss of carbon storage potential. Sustainable management and development of these landscapes depends on understanding the relationship between diversity and nutrient cycling and how it is affected by repeated disturbance.

施莱辛格 DEB-9623837本研究的目的是确定种植历史如何影响森林斑块中的植物定殖和竞争。 我们假设，在当地规模的重复刀耕火种农业将减少限制土壤养分，如磷，植物生长的可用性。 在景观尺度上，在许多刀耕火种循环的过程中，种子源的空间和时间分布的变化将影响哪些物种到达一个给定的补丁。 实验室和现场的观察研究和实验将被用来验证这些假设。 将原始森林转变为农业用地对热带地区数百万农村穷人的福祉至关重要。 它也是生物多样性丧失和碳储存潜力丧失的根源。 这些景观的可持续管理和发展取决于了解多样性和养分循环之间的关系，以及它是如何受到反复干扰。