LTER: Consequences of Land Use Change in the Southern Appalachian Mountains

LTER：南阿巴拉契亚山脉土地利用变化的后果

• 批准号: 0218001
• 负责人: Theodore Gragson
• 金额: --
• 依托单位: University of Georgia Research Foundation Inc
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-11-01 至 2009-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0218001&HistoricalAwards=false
• 关键词: LTER; Consequences; Land; Use; Change

The Coweeta LTER Research Program has evolved since 1980 from a site-based to a site- and region-based project examining the effects of disturbance and environmental gradients on biogeochemical cycling, and the underlying watershed ecosystem processes that regulate and respond to those cycles. The objective for the proposed 2002-2008 research is to advance scientific understanding of the spatial, temporal, and decision-making components of land use and land-use change in the southern Appalachian Mountains over the last 200 years, and forecast patterns into the future 30 years. This will be accomplished by addressing ecological and socioeconomic aspects of land-use change while continuing long-term studies of environmental gradients and natural disturbance regimes. The result will be a more complete understanding of ecological dynamics in the southern Appalachian Mountains that makes possible the development of reasonable forecasts of its future ecological state.The guiding hypothesis for the proposed research is that the frequency, intensity, and extent of land use represents human decision-making in response to socioeconomic and biogeophysical conditions with consequences that cascade through ecosystems. The research activities are organized into three initiatives: (1) characterization of the "socio-natural template," (2) ecosystem responses to the socio-natural template, and (3) forecasting ecosystem responses to changes in the socio-natural template. The integrated scientific research will provide both a description as well as an explanation of the underlying causes of land use and the consequences of land-use change for southern Appalachian ecosystems and society. It thus recognizes the complexity of land use as a process and the research and outreach needs as defined in the LTER Program and the broader scientific and public communities.

自1980年以来，Coweeta lter研究计划已从基于站点和基于区域的项目发展，研究了干扰和环境梯度对生物地球化学循环的影响，以及基本的分水岭生态系统过程，这些生态系统调节并响应这些循环。拟议的2002 - 2008年研究的目的是提高对过去200年中阿巴拉契亚山脉土地利用和土地利用变化的空间，时间和决策组成部分的科学理解，并预测未来30年。这将通过解决土地利用变化的生态和社会经济方面来实现，同时继续对环境梯度和自然干扰制度进行长期研究。结果将是对南部阿巴拉契亚山脉的生态动态的更全面了解，这使得拟议研究的指导假设是有可能发展其未来生态状态的合理预测，这是拟议的研究的指导假设是，土地使用的频率，强度和程度代表了人类的决策，以响应社会经济和生物体物理条件，并通过层层造成层层的影响，从而响应于社会经济和生物学条件。研究活动分为三个举措：（1）“社会自然模板”的表征，（2）生态系统对社会自然模板的响应，以及（3）预测生态系统对社会自然模板变化的响应。综合科学研究将既提供描述，也可以解释土地使用的根本原因以及土地利用变化对南部阿巴拉契亚生态系统和社会的后果。因此，它认识到土地利用的复杂性是一个过程，以及lter计划以及更广泛的科学和公共社区中定义的研究和外展需求。