基于RS和GIS的渭南8县市地貌类型及居民地时空变化分析  

Spatiotemporal Changes of Landform and Residential Area in Weinan City

作　　者：牛志英[1] 曹健[2] 李波[3] 

机构地区：[1]渭南职业技术学院,陕西蒲城715500 [2]河北省石家庄市环境监测中心,河北石家庄050022 [3]西北农林科技大学资源与环境学院,陕西杨凌712100

出　　处：《水土保持通报》2009年第4期224-228,共5页Bulletin of Soil and Water Conservation

基　　金：国家科技支撑课题"坡面降雨径流调控与高效利用技术"(2006BAD09B01)

摘　　要：基于遥感和GIS技术,以2000年TM和2007年CBERS影像为主要数据源,分析了渭南8县(市、区)地貌格局及居民地面积的时空变化。分析结果表明:(1)研究区地貌类型复杂多样,山、川、塬、沟壑、沙地和河道兼具,以渭北台塬和渭北沟壑面积最广,比重均超过20%;(2)7a间研究区居民地增加6044.1hm2,其中临渭区增长2718.6hm2,面积变化最多,其次是大荔县,面积增长1057.8hm2,潼关县增长最少,为123.1hm2;研究区居民地单一土地利用动态度(年变化率)均值为2.03%,而各县年变化率以临渭区最高(3.75%),澄城县最低,仅0.85%。By using remote sensing （RS） and geographic information system （GIS）, the landform pattern and the change of residential area of the 8 counties belonging to Weinan City are analyzed based on the TM data in 2000 and CBERS data in 2007. Results show that landform patterns are complex and diversiform with moun- tain, plain, valley, sandy-land, channel, etc, in which the flatland above plain and the valley in the north bank of Weihe River occupy over 20% of the total land area. The total area of residential sites in all counties increased by 6 044.1 hm2 during the 7 years, in which the biggest is 2 718.6 hm2 in Linwei District, the sec- ond is 1 057.8 hm2 in Dali County, and the least change is 123.1 hm2 in Tongguan County. The dynamic degree of overall region studied is 2.03%, in which the most one is 3.75% in Linwei District and the least one is 0.85% in Chengcheng County.

关 键 词：居民地 动态度 遥感影像 中巴卫星 渭南市 

分 类 号：F301.2[经济管理—产业经济]