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Land use changes threaten agricultural land. If agricultural land is going to be preserved, the social and economic causes
of conversion must be understood. However, analyzing the causes of agricultural conversion is complex because trends need
to be documented before analyzing the causes. One of the leading uses of agricultural land is for residential purposes. This
paper projects residential development in a Hudson River Valley watershed within Dutchess County in New York State using an
integrated modeling framework consisting of an econometric model, a geographic information system (GIS), and Monte Carlo simulation.
The econometric model is used to project residential development, providing parcel-specific probabilities of residential development.
The GIS is employed to extract socio-economic and county-level tax parcel data to be used in conjunction with bio-geophysical
attributes, such as slope, soil, and location, to calculate and project growth trends on a residential level for undeveloped
land parcels. Monte Carlo simulation is used to distribute these projections into the GIS to display outcomes of scenario
analyses to provide policy-makers a demonstration of how policies would likely affect the agricultural landscape of the watershed.
John M. Polimeni is an Assistant Professor of Economics in the Department of Humanities and Social Sciences at the Albany College of Pharmacy
in Albany, New York. Dr. Polimeni received a PhD in Ecological Economics and a BS in Mathematics at Rensselaer Polytechnic
Institute. His professional interests include: quantitative economics, spatial and regional economics, land use change, economic
development, and graduate education in Ecological Economics. He is currently working on linking ecological economics with
the laws of thermodynamics and neuroeconomics into one unified model. 相似文献
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西安城市居民区土壤重金属健康风险评价 总被引:6,自引:1,他引:6
城市化过程中各种人类活动的废弃物进入土壤生态系统后经由多种方式对城市居民健康产生威胁,城市居民区作为人类密集活动的场所,土壤重金属污染的健康风险更为值得关注。通过实验数据的分析可知西安市居民区土壤中Pb、Cu、As的污染相对较重而Ba、Co、Cr、Ni、Zn的污染相对较轻,这八种元素产生的健康风险均在可接受范围之内,但对成人与儿童的风险大小具有一定差异。多元统计分析与基于ARCGIS的地统计分析的结果表明Ba-Co-Zn的累积主要与交通、工业、居民区内部活动有关,其空间分布表现为西部高东部低的特征;Cu-Pb的累积主要受交通活动和垃圾堆放等活动影响,空间分布上在城市中心偏北存在两个极值中心;As-Ni累积主要受成土母质影响,叠加有轻微的化石燃料燃烧等人类活动,城市中心为其高值区;Cr的累积主要与交通活动相关,空间分布特征表现为西部低而东部、北部高。 相似文献
4.
北京市居住区植物造景初探 总被引:6,自引:0,他引:6
居住区是人居环境最直接的空间,其环境的建设应以改善和维护小区生态平衡为宗旨,以人与自然共存为目标。通过分析北京市回龙观风雅园小区、塞纳维拉小区、亚运新新家园等6个住宅区绿化现状、景观现状、功能要求、人文环境,提出了住宅区的植物配置模式。 相似文献
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在大力发展住区建设的同时,广州结合当地独特的地理气候特征和人文历史积淀,创造了一批高质量的安康住区。通过对新建居住小区环境建设的分析,指出当前居住小区环境建设中的问题,提出住区环境规划建设与生态结合的发展方向。 相似文献
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根据某楼盘景观绿化工程施工过程,从进场前准备、苗木品种选择、绿地土壤翻新、大型乔木预培育和预种植等方面,围绕短工期、高质量的要求,总结庭院景观高效施工技术. 相似文献
9.
Cities in China support higher human population densities compared to those in western countries; consequently, the high pressure placed on cultural ecosystem services (CES) provision of residential green spaces might hinder overall human wellbeing and the maintenance of avian diversity. Thus, this study aimed to identify how to meet the main preferences of citizens for residential green spaces while simultaneously enhancing bird diversity in city neighborhoods, generating a win-win scenario for human needs and biodiversity. This study was implemented using 568 questionnaires for residents and GLMM for bird-environment statistical analyses. Residents in Beijing preferred higher levels of bird species richness than individual abundance in neighborhoods. Residential green space appeared to serve as the movement corridor for some rare species, indicating the importance of promoting the presence of migrant bird guilds, which is currently incidental. The cultivation of fruit-bearing shrubby plants was supported by most city residents, and would also promote the presence of migratory birds in green spaces. In contrast, while increasing the width of residential green spaces would benefit migratory birds, it had less public support. This multi-disciplinary study clearly demonstrated that both the quality of life of humans in cities and biodiversity conservation could be efficiently incorporated in green space plans, even under highly urbanized circumstances. 相似文献
10.
针对小城镇居住区环境的现状,从生态学的角度提出改善种植质量、选择适宜的树种和合理的施工与管理方法、增加空间变化等方面进行了生态补偿设计方法的探讨,同时对加强居住区生态文化的建设、提高居民的意识等方面提出了一些合理化建议。 相似文献