摘要
通过测算南水北调中线工程水源区土地利用结构熵和土地利用类型转换关系,分析了水源区土地利用结构演化特征,指出水源区土地利用结构在2012年以前稳定性较高,但是2012年以后因丹江口水库蓄水而对水源区土地利用结构产生了一定影响,导致水源区土地利用结构稳定性偏弱;水源区土地利用类型的数量变化主要表现为水域、建设用地面积增加,耕地、林地、草地、未利用地面积减少,空间位置变化主要表现为耕地与林地、林地与草地、草地与水域之间空间位置的变换;利用主成分分析方法对水源区土地利用结构演化的影响因素进行了研究,指出经济发展水平、社会生活和土地利用以及生态环境为其主要影响因素。
The characteristics of land structure in water source area were analyzed by calculating the relationship between land structureentropy and land type conversion in water source area of Middle Route Project of South to North Water Diversion. Before 2012,the land usetypes in the water source area had a higher stability,and after 2012,due to the dam＇s water storage,the structure has been changed,and thethe land use structure stability is weak. The quantity change of land use type in water source area is mainly in the area of water area andconstruction land,and the area of cultivated land,forest land,grassland and unused land has been decreased. The change of spatial positionis mainly reflected in the transformation land and woodland,woodland and grassland,grassland and water area. By using PCA,the importantfactors affecting the level of economic development,social life and land use and ecological environment were pointed out.
出处
《人民黄河》
CAS
北大核心
2016年第7期53-57,63,共6页
Yellow River
基金
国家自然科学基金资助项目(U1204709
71103213
U1304702)
教育部人文社会科学基金资助项目(14YJA630060)
河南省青年骨干教师资助计划项目(2013GGJS-119)
河南省社会科学规划基金资助项目(2015BJJ062)
河南省科技厅软科学基金资助项目(152400410605)
关键词
土地利用结构
熵值
南水北调中线工程
水源区
land use structure
entropy
Middle Route Project of the South to North Water Transfer Project
water source area
