减少外来生物入侵造成危害的重要手段是阻止可能造成入侵的物种进入适合其生存的地区.以南京紫金山为研究对象,以3个W EB数据库为主要信息源,通过农业气候相似矩从国内外9种林业入侵物种中筛选出研究区域松材线虫、日本松干蚧、美国白蛾...减少外来生物入侵造成危害的重要手段是阻止可能造成入侵的物种进入适合其生存的地区.以南京紫金山为研究对象,以3个W EB数据库为主要信息源,通过农业气候相似矩从国内外9种林业入侵物种中筛选出研究区域松材线虫、日本松干蚧、美国白蛾3种潜在的外来入侵生物,并在此基础上收集研究地区数字高程模型、高分辨率卫星遥感数据Q u ickB ird,以地理信息系统软件A rcG is 9.0为空间分析平台,确定影响潜在入侵物种空间分布的主导生物地理因子并数字化为不同的图层,通过图层叠加生成外来入侵物种潜在适生性评价图,从而为具有很高历史文化保护价值地区生物多样性保护措施的制定提供科学依据.展开更多
The fuzziness exists in spatial distribution of geographic data of land suitability evaluation processes,which makes it difficult to quantify land boundaries by using traditional binary logic-based overlay model.Aimin...The fuzziness exists in spatial distribution of geographic data of land suitability evaluation processes,which makes it difficult to quantify land boundaries by using traditional binary logic-based overlay model.Aiming at this limitation,an ecological suitability evaluation analysis model was presented based on fuzzy theory and a research on urban growth boundary(UGB) of the Great-Hexi Leading District(GHLD) of Changsha was conducted.With the support of GIS,RS and MATLAB,slope,elevation,vegetation,soil productivity,soil permeability,water body and land use are selected as the input of model according to the characteristic properties of soil and terrain in red soil hilly areas.The running result of this model indicates that the ratios of highly suitable land,suitable land,moderately suitable land and unsuitable land in GHLD are 18.75%,10.31%,64.16%,6.78%,respectively.This result accords with spatial structure worked out by Space Development Strategy Planning of GHLD,Based on this result,several suggestions are made to guide UGB developments in future.展开更多
文摘减少外来生物入侵造成危害的重要手段是阻止可能造成入侵的物种进入适合其生存的地区.以南京紫金山为研究对象,以3个W EB数据库为主要信息源,通过农业气候相似矩从国内外9种林业入侵物种中筛选出研究区域松材线虫、日本松干蚧、美国白蛾3种潜在的外来入侵生物,并在此基础上收集研究地区数字高程模型、高分辨率卫星遥感数据Q u ickB ird,以地理信息系统软件A rcG is 9.0为空间分析平台,确定影响潜在入侵物种空间分布的主导生物地理因子并数字化为不同的图层,通过图层叠加生成外来入侵物种潜在适生性评价图,从而为具有很高历史文化保护价值地区生物多样性保护措施的制定提供科学依据.
基金Project(2006BAJ04A13) supported by the National Science and Technology Pillar Program during the 11th Five-Year Plan of ChinaProject(2009FJ4056) supported by the Key Project of Science and Technology Program of Hunan Province,ChinaProject(20090161120014) supported by the New Teachers Fund of Department of Education,China
文摘The fuzziness exists in spatial distribution of geographic data of land suitability evaluation processes,which makes it difficult to quantify land boundaries by using traditional binary logic-based overlay model.Aiming at this limitation,an ecological suitability evaluation analysis model was presented based on fuzzy theory and a research on urban growth boundary(UGB) of the Great-Hexi Leading District(GHLD) of Changsha was conducted.With the support of GIS,RS and MATLAB,slope,elevation,vegetation,soil productivity,soil permeability,water body and land use are selected as the input of model according to the characteristic properties of soil and terrain in red soil hilly areas.The running result of this model indicates that the ratios of highly suitable land,suitable land,moderately suitable land and unsuitable land in GHLD are 18.75%,10.31%,64.16%,6.78%,respectively.This result accords with spatial structure worked out by Space Development Strategy Planning of GHLD,Based on this result,several suggestions are made to guide UGB developments in future.
