2000～2015年渭河流域生态资产时空变化分析  

Analysis of Spatial-temporal Changes in Ecological Capital in Weihe River Basin from 2000 to 2015

作　　者：尹聪娴 张艳芳 YIN Cong-xian;ZHANG Yan-fang(School of Geography and Tourism,Shaanxi Normal University,Xi＇ an 710119,China)

机构地区：[1]陕西师范大学地理科学与旅游学院,陕西西安710119

出　　处：《江西农业学报》2018年第7期123-128,共6页Acta Agriculturae Jiangxi

基　　金：国家自然科学基金项目(41371523)

摘　　要：基于MODIS-NDVI等数据,利用遥感定量测量和生态学方法,估算了渭河流域2000~2015年的生态资产并分析了其时空变化特征。结果表明:渭河流域2000、2005、2010和2015年的生态资产总量分别为1092.75亿、1076.43亿、1073.81亿和1109.11亿元,16年间只增长了1.50%;在渭河流域的各子流域中,渭河干流的生态资产最高,其次为北洛河流域和泾河流域;渭河流域生态资产较高的地区主要分布于南部秦岭北坡林区及六盘山区和北部黄龙山、子午岭等地区,生态资产较低的地区主要分布于黄土高原丘陵沟壑区以及关中平原部分地区;人为因素是导致渭河流域生态资产变化的重要原因,北洛河流域生态资产出现小幅度退化,应加强生态保护。According to the data of MODIS-NDVI and so on,this paper estimated the ecological capital in the Weihe river basin from 2000 to 2015,and analyzed the characteristics of its spatial-temporal changes by using remote-sensing quantitative measurement and ecological methods. The results indicated that： the overall amount of ecological capital in the Weihe river basin in 2000,2005,2010 and 2015 was 109275 million,107643 million,107381 million and 110911 million yuan,respectively,and its increment rate from 2000 to 2015 was only 1.50%; among various sub-basins of the Weihe river basin,the main stream of the Weihe river had the highest ecological capital,followed by the North Luohe river basin and the Jinghe river basin; in the Weihe river basin,the areas with higher ecological capital were distributed mainly in the Qinling North Slope Forest region and the Liupan Mountain region in southern part,and the Huanglong Mountain and Ziwuling region in northern part,while the areas with lower ecological capital were distributed mainly in the hilly and gully regions of the Loess Plateau and some regions of the Guanzhong plain; the human factor was the important reason for the ecological capital change in the Weihe river basin; the ecological capital in the North Luohe river basin decreased to a certain extent,so the ecological protection in this sub-basin should be strengthened.

关 键 词：生态资产 时空变化 驱动因素 渭河流域 

分 类 号：F062.2[经济管理—政治经济学]