渭河流域土地利用类型转换及其对生态空间格局的影响  

Land use changes ofWeihe River Basin and it's influence on the ecological spatial pattern

作　　者：杨涛[1] 阎晓娟[1] 赵寒森[1] 王鹏[1] 朱涛[1] 蔡浩杰 左旭刚 奚仁刚[1] 张雨莲[1] 王立社[1] 吴硕 YANG Tao;YAN Xiaojuan;ZHAO Hansen;WANG Peng;ZHU Tao;CAI Haojie;ZUO Xugang;XI Rengang;ZHANG Yulian;WANG Lishe;WU Shuo(Xi'an Center of China Geological Survey,Xi'an 710054,Shaanxi,China;College of Earth Science and Resources,Chang'an University,Xi'an 710054,Shaanxi,China;Tongling Nonferrous Metals Group Co.,Ltd,Tongling 244000,Anhui,China)

机构地区：[1]中国地质调查局西安地质调查中心,陕西西安710054 [2]长安大学地球科学与资源学院,陕西西安710054 [3]铜陵有色金属集团股份有限公司,安徽铜陵244000

出　　处：《中国地质》2023年第5期1460-1470,共11页Geology in China

基　　金：中国地质调查局项目(DD20211387、DD20211393)资助。

摘　　要：【研究目的】自然资源综合调查作为中国地质调查局2021年的新拓展业务,旨在服务国土空间规划、用途管制及生态保护修复。【研究方法】本文基于流域2000年、2010年和2020年土地利用/覆被变化监测数据,利用ArcGIS软件对流域的土地利用类型和生态空间用地时空变化特征进行分析。【研究结果】结果表明:(1)2000—2010年流域耕地转换为草地、林地以及建设用地的面积分别为804.4 km^(2)、350.3 km^(2)、327.6 km^(2),而草地、林地以及建设用地转换为耕地的面积分别为94.3 km^(2)、10.4 km^(2)、1.2 km^(2);(2)2010—2020年流域耕地转换为草地、林地以及建设用地的面积分别为16646.8 km^(2)、3024.5 km^(2)、2547.9 km^(2),而草地、林地以及建设用地转换为耕地的面积分别为16867.7 km^(2)、3103.6 km^(2)、2528.82 km^(2);(3)2000—2020年流域生态空间用地面积转换达48165 km^(2),其中生态用地→半生态用地面积为20172 km^(2),半生态用地→生态用地面积为20897 km^(2),弱生态用地→半生态用地面积为2519 km^(2),半生态用地→弱生态用地面积为2754 km^(2),反映流域生态空间用地转换趋于平衡和生态系统服务质量稳中趋增。【结论】以上成果对于促进渭河流域自然资源综合区划和国土空间“三区三线”优化具有重要意义。This paper is the result of monitoring and evaluating engineering of natural resources.[Objective]As a new expansion business of China Geological Survey in 2021,the comprehensive survey of natural resources aims to serve land and space planning,use control and ecological protection and restoration.[Methods]Based on the monitoring data of land use/cover change in the watershed in 2000,2010,and 2020,ArcGIS software was used to analyze the spatiotemporal changes in land use types and ecological space of Weihe River Basin.[Results]The results show that:1)during 2000-2010,804.4 km^(2),350.3 km^(2)and 327.6 km^(2)of cropland converted into grassland,forest and constructive land respectively,while only 94.3 km^(2)grassland,10.4 km^(2)forest and 1.2 km^(2)constructive land converted into cropland;2)during 2010-2020,16646.8 km^(2),3024.5 km^(2)and 2547.9 km^(2)of cropland converted into grassland,forest and constructive land respectively,while 16867.7 km^(2)grassland,3103.6 km^(2)forest and 2528.82 km^(2)constructive land converted into cropland;3)during 2000-2020,the conversion of ecological space land in this region reaches 48,165 km^(2),of which the ecological→semi-ecological land was 20172 km^(2),the semi-ecological→ecological land was 20,897 km^(2),the weak ecological→semi-ecological land was 2,519 km^(2),and the semi-ecological→weak ecological land was 2754 km^(2).It reflects that the conversion of ecological space land in the region tends to balance and the quality of the ecosystem is slowly increasing.[Conclusions]The results is of great significance for accelerating comprehensive regionalization of natural resources and optimizes"three-zone and the-lines"of the Territorial Spatial Plan in theWeihe River Basin.

关 键 词：土地利用/覆被变化 生态空间 综合区划 “三区三线” 渭河流域 自然资源监测评价工程 

分 类 号：X321[环境科学与工程—环境工程] F301.2[经济管理—产业经济]