随着长江战略的实施拓展,重心内移,新增长区将定位于长江中游沿江地区: 展望未来发展趋势,中国经济将以协调发展的 H 型新格局展开,长江中游沿江地区为主的中部地区将迅速崛起,并同沿海三大增长区一起担当中国经济核心地区重任。一、中...随着长江战略的实施拓展,重心内移,新增长区将定位于长江中游沿江地区: 展望未来发展趋势,中国经济将以协调发展的 H 型新格局展开,长江中游沿江地区为主的中部地区将迅速崛起,并同沿海三大增长区一起担当中国经济核心地区重任。一、中国区域经济 H 型格局演化与经济重心内移化趋势根据中国地域经济特征和长期社会经济发展的综合作用。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
文摘随着长江战略的实施拓展,重心内移,新增长区将定位于长江中游沿江地区: 展望未来发展趋势,中国经济将以协调发展的 H 型新格局展开,长江中游沿江地区为主的中部地区将迅速崛起,并同沿海三大增长区一起担当中国经济核心地区重任。一、中国区域经济 H 型格局演化与经济重心内移化趋势根据中国地域经济特征和长期社会经济发展的综合作用。
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.
