Process of Land Use/Land Cover Change in the Area of Middle and Lower Reach of Jialingjiang River
Received date: 2004-08-01
Revised date: 2005-01-01
Online published: 2005-03-25
In combination with the methods of RS, GIS and Statistics, the process and trend of LUCC in the Area of Middle and Lower Reach of Jialingjiang River are thoroughly studied by establishing mathematical models in the range, speed, trend index and regional differences of LUCC based on the remote sensing imagery data of 1972, 1986 and 2000. The main results are as follows. (1) From 1972 to 2000, the areas of grassland, farmland and unused land are respectively decreased by 26834.18 hm2、6886.68 hm2 and 217.84 hm2, while those of woodland, cultivated land and water area are respectively increased by 19844.89 hm2、12964.45 hm2 and 1129.36 hm2. Disconnecting the period by 1986, the area of cultivated land and water area increased at all times, while those of grassland and unused land decreased, and woodland decreased in the first period and then increased in the second period. The farmland was in reverse considering the change of area. (2) From 1972 to 1986, based on the order of the output speed, the six kinds of these land-uses were arranged by grassland, woodland, farmland, unused land, water area and cultivated land. As to the input speed, the order is cultivated land, woodland, grassland, farmland, water area and unused land. In view of general change index, these land-uses were ranked as grassland, cultivated land, woodland, farmland, water area and unused land. The input speed of cultivated land and water land was beyond their output speed remarkably, while that status of woodland was on the contrary, which was in the state of balance. From 1972 to 1986, to separately calculate the indexes in the same way as above, the respective arrangement of the results were unused land>grassland>farmland>water area>woodland>cultivated land, cultivated land>unused land>woodland>water area>grassland>farmland, and cultivated land>unused land>grassland>woodland>water area>farmland. Cultivated land was not quite stable, whose input speed was beyond output speed notably. (3) The land use of Chongqing, Jiangbei and Hechuan had changed mostly in the period according to the change index, and the results were from 0.231% to 0.272%. The values in Gungyuan, Wangcang were from 0.114 to 0.126%. The values in Jiange, Cangxi, Langzhong, Nanbu, Xichong, Nanchong Pengan, Yuechi and Wusheng were from 0 to 0.090%.
XIAN Wei, SHAO Huaiyong, ZHOU Wancun . Process of Land Use/Land Cover Change in the Area of Middle and Lower Reach of Jialingjiang River[J]. PROGRESS IN GEOGRAPHY, 2005 , 24(2) : 114 -121 . DOI: 10.11820/dlkxjz.2005.02.013
[1] Deng Xiangzheng, Liu Jiyuan. Modeling the relationship of land use change and some geographical indicators for the interlock area of farming and pasturing in China．Journal of Geographical Sciences，2002，12(3) :397～404．
[2] 刘纪远．中国资源环境遥感宏观调查与动态研究．北京:中国科学技术出版社，1996:158～188．
[3] 王秀兰，包玉海．土地利用动态变化研究方法探讨．地理科学进展，1999，18(1):81～87．
[4] 王思远，刘纪远等．中国土地利用时空特征分析．地理学报．2001，56(6):631～639．
[5] 罗格平，周成虎等．干旱区绿洲土地利用与覆被变化过程．地理学报，2003，58(1):63～72．
[6] 刘盛和，何书金．土地利用动态变化的空间分析测算模型．自然资源学报，2002，17(5) :533～540．
[7] 陈百明，刘新卫，杨红．LUCC研究的最新进展评述．地理科学进展，2003，21(1):22～29．
[8] 朱会义，李秀彬等．环渤海地区土地覆被的时空变化分析．地理学报，2001，56(3) :253～260．
[9] 李秀彬，土地利用变化的解释．地理科学进展，2002，21(3):195～203．
[10] 樊杰，许豫东，邵阳．土地利用变化研究的人文地理视角与新命题．地理科学进展，2003，22(1):1～10．
[11] 摆万奇，阎建忠等．大渡河上游地区土地利用/土地覆被变化与驱动力分析．地理科学进展，2004，23（1）:71～78．
[12] 何春阳，史培军，陈晋等．北京地区土地利用/覆被变化研究．地理研究，2001，20（6）:679～687．
[13] 李仁东，庄大方等．洞庭湖区近20年土地利用/覆被变化的时空特征．地理科学进展，2003，22（2）:164～169．
[14] 王思远， 刘纪远等．中国土地利用时空特征分析．地理学报，2001，56（6）:631～639．
[15] 李秀彬．全球环境变化研究的核心领域——土地利用/土地覆被变化的国际研究动向．地理学报，1996，51(6):553～557．
[16] 于兴修，杨桂山．中国土地利用/覆被变化研究．地理科学进展，2002，21（1）:51～57．
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