南水北调与水利科技Issue(1)：30-36,7.DOI:10.13476/j.cnki.nsbdqk.2016.01.005
1980年以来黄河内蒙古段十大孔兑流域土地利用变化时空特征
Spatial-temporal characteristics of land use changes in the ten tributaries of Yellow River in Inner-Mongolia since 1980
摘要
Abstract
The study of the land use changes in the ten t ributaries of Yellow River in Inner-Mongolia is of great significance for not only the construction of regional ecological environment, but also the evaluat ion of w ater and soil conservation effect s. Based on t he land use data interpret ed from remote sensing images in 1980, 1998 and 2010, the spatial and temporal variat ion of land use in the ten tributaries since 1980 w as analyzed from the land use dynamic change and the direction of land use transforma-tion. Some conclusions can be draw n as follows: First, Arable land, grassland and unused land w ere the major land use t ypes in the t en tributaries. T he area of grassland gradually increased, w hile unused land decreased since 1980. The rate and speed of var-iation were higher during 1998-2010 than 1980-1998. Second, during 1980-1998 and 1998-2010, the directions of land use change were mainly as follows: unused land w as converted to low and m iddle coverage grassland, low coverage grassland to m iddle and high coverage grassland, middle coverage grassland to high coverage grassland. The area of conversion were mainly distributed in t he upper and middle basin of the ten t ributaries. The largest area of conversion of low coverage grassland to middle and high coverage grassland was obtained during 1980-1998. While the largest unused land to low and middle coverage grassland was ob-served during 1998-2010. The urbanization level had grown, w ater and soil conservation of forest and grass had been enhanced, regional ecological environment had been im proved in the ten tribut aries since 1980, and more outstanding improvement effects were found after the launch of bioenvironmental recovering policy of Grain to Green Program ( GTGP) in 1999.关键词
土地利用/时空特征/林草水保措施/遥感解译/十大孔兑Key words
land use change/spatial-temporal characterist ics/water and soil conservation of forest and grass/remote sensing in-terpretation/the ten tribut aries分类
管理科学引用本文复制引用
刘晓林,杨胜天,周旭,管亚兵,王志伟,陈珂..1980年以来黄河内蒙古段十大孔兑流域土地利用变化时空特征[J].南水北调与水利科技,2016,(1):30-36,7.基金项目
“十二五”国家科技支撑计划课题(2012BAB02B00) （2012BAB02B00）
水利部公益性行业科研专项经费项目(201101037) （201101037）
中央高校基本科研业务费专项Fund：National Science & T echnology Key Program during the 12th Five-year Plan Period(2012BAB02B00) （2012BAB02B00）
Public Welfare Foundation of the Ministry of Water Resources of China(201101037) （201101037）
Fundamental Research Funds for the Central Universities （）
