CNH-L: Coupled Social and Ecological Consequences of Conservation Easements

保护地役权是一种私人土地保护工具，在过去的30年里在美国得到了广泛的使用，它们的流行可能与税法出于公共利益而为私人土地保护创造了激励措施相对应。这项研究项目将考察保护地役权持有人、地役权捐赠者/出售者之间的动态变化、地区土地使用压力以及与受保护土地的联系如何影响美国不同地区保护地役权的空间格局、公共利益和生态完整性。将在细微范围内审查这些动态；国家和区域政策结构将在地块一级联系起来。分析保育性地役权过程中的公共投入如何影响地役权的空间利用，以及地役权对邻近和县级土地成本的邻里效应。这项研究的结果将有助于土地利用规划者，无论是公共的还是私人的，他们将受益于更好地了解运输过程和环境结果。学生将接受数据库创建和评估方面的培训，以加强国家的科学队伍。运用多元、空间叠加和时间序列分析方法，考察政治和法律因素与保护地役权传播之间的关系。区域空间数据集将与县级地役权捐赠者调查以及精细和粗略过滤生态完整性方法的结果相结合，以评估以保持生物完整性为目的的养护地役权是否比其他养护地役权在空间安排上对保护区网络作出贡献的可能性更高。在地役权安置过程中，这种情况是否更有可能发生在公众监督的地区将得到确定。将讨论环境结果如何影响地役权决策过程。理论将通过在单一的空间和数量框架内审查地役权工具的地理效应以及社会因素可能如何影响其使用来提出。更广泛的影响将包括更好地了解规划者和土地所有者的完整保护地役权过程，以及培训本科生和研究生。

A private land conservation tool, conservation easements, have become widely used in the United States over the past thirty years, and their popularity may correspond to tax laws creating incentives for private land conservation in the public interest. This research project will examine how shifting dynamics between conservation easement holders, easement donors/sellers, regional land use pressures, and connections to conserved lands are affecting the spatial pattern, public benefit and ecological integrity of conservation easements in different regions of the United States. These dynamics will be examined at the fine scale; national and regional policy structures will be linked at the land parcel-level. How public input during the conservation easement process affects the spatial use of easements, as well as the neighborhood effects of easements on adjacent and county-level land costs, will be analyzed. Results from this research will be useful to land use planners, both public and private, who will benefit from a better understanding of the conveyance process and the environmental outcomes. Students will be trained in database creation and assessment, strengthening the nation's scientific workforce. Employing multivariate, spatial overlay, and time-series analyses, the relationship between political and legal factors and conservation easement propagation will be examined. Regional spatial datasets will be combined with the results from county-level easement donor surveys and both fine and coarse filter ecological integrity approaches to assess whether conservation easements whose purpose is to maintain biological integrity have a higher likelihood of contributing to reserve networks in their spatial arrangement than do other conservation easements. Whether this is more likely to occur in areas with public oversight in the easement placement process will be determined. How the environmental outcomes affect the easement decision process will be addressed. Theory will be advanced by examining the geographic effect of the easement tool, and how social factors may influence its use, in a single spatial and quantitative framework. Broader impacts will include better understanding of the complete conservation easement process for planners and land owners and the training of undergraduate and graduate students.