LTREB: Plot recensus in Tropical Forests of Asia, to Generate Data on Dynamics and Species Demographies

LTREB：对亚洲热带森林进行普查，生成动态和物种人口统计数据

• 批准号: 0075334
• 负责人: Peter Ashton
• 金额: $ 11.64万
• 依托单位: Harvard University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-07-15 至 2003-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0075334&HistoricalAwards=false
• 关键词: LTREB; Plot; recensus; Tropical; Forests

0075334AshtonThe Center for Tropical Forest Science (CTFS) is an organ of the Smithsonian Tropical Research Institute, established to foster research collaboration between universities and research institutions in the US and the humid tropics. A focus of CTFS is to document the abiotic and historical biogeographic correlates of tree species diversity in biodiverse lowland tropical forests, consistently expressed on the three tropical continents. The patterns revealed will facilitate formulation of explanatory hypotheses for the maintenance of biodiversity, testable by experiment. Aided by computer simulations , the impact of timber harvesting and other human interventions on tree species diversity is being predicted, and will be tested in associated research including logging experiments. There are six core study plots in Asian tropical forests and this proposal seeks funding to re-census these plots. Dynamic data forthcoming from four already established plots will enable the investigators to document changes in forest dynamics along abiotic gradients of regional scale, notably rainfall seasonality, for the first time. Two of these four plots experienced unprecedented droughts since their previous census; analysis will here yield base-line data on the impact of climate change on biodiverse tropical ecosystems.

0075334阿什顿热带森林科学中心（CTFS）是史密森热带研究所的一个机构，旨在促进美国和潮湿热带地区的大学和研究机构之间的研究合作。CTFS的一个重点是记录生物多样性低地热带森林中树种多样性的非生物和历史地理学相关性，在三个热带大陆上一致表达。揭示的模式将有助于制定解释性的假设，为维护生物多样性，可通过实验来检验。在计算机模拟的帮助下，正在预测木材采伐和其他人类干预对树种多样性的影响，并将在包括伐木实验在内的相关研究中进行测试。亚洲热带森林有六块核心研究地块，本提案寻求资金，以便对这些地块进行重新普查。从四个已经建立的地块即将获得的动态数据将使调查人员能够第一次记录森林动态沿着区域尺度的非生物梯度的变化，特别是降雨季节性。这四个地块中有两个经历了自上次普查以来前所未有的干旱;分析将在这里产生关于气候变化对生物多样性热带生态系统影响的基线数据。