Songnen Plain is one of the commercial grain bases of China, which belongs to ecological fragile regions.Based on remote sensing and GIS technologies, the dynamic changes of land-use patterns in western Songnen Plain were analyzed quantitatively.The results show that great change has occurred in spatial pattern of land-use in the past 50 years.The area of cultivated land increased 29.65?104 ha, which mainly converted from grassland and wetland.And 70.29?104 ha of grassland lost in the past 50 years, except for conversion to cultivated land, desertification, salinization and grassland degradation can also account for grassland losing.Wetlands have decreased 62.45% since 1954.The study also indicated that the fragmentation of grassland, forestland, wetland and unused land were severe.The maximal patch area and maximal patch perimeter were all decreased.The conversion ratio of different land-use types were severe in the west part of Songnen Plain, which indicated that different land-use types were unstable, anthropogenic and natural factors both play important roles in this process, while human actives affect the process more severely.
LIU Dian-Wei, SONG Kai-Shan, WANG Dan-Dan, ZHANG Shu-Qing
. Dynamic Change of Land-use Patterns in West Part of Songnen Plain[J]. SCIENTIA GEOGRAPHICA SINICA, 2006
, 26(3)
: 277
-283
.
DOI: 10.13249/j.cnki.sgs.2006.03.277
[1] 刘盛和,何书金.土地利用动态变化的空间分析测算模型[J].自然资源学报,2002,17(5):533~540.
[2] 范月娇.基于遥感和GIS一体化技术的三峡库区土地利用变化研究[J].地理科学,2002,22(5):593~597.
[3] 李 颖,田竹君,叶宝莹,等.嫩江下游沼泽湿地变化的驱动力分析[J].地理科学,2003,23(6):686~691.
[4] 赵庚星,李玉环,徐春达.遥感和GIS支持的土地利用动态监测研究——以黄河三角洲垦利县为例[J].应用生态学报,2000,11(4):573~576.
[5] 韩晓增,王守宇,宋春雨,等.土地利用/覆盖变化对黑土生态环境的影响[J].地理科学,2005,25(2):203~208
[6] 刘纪远.国家资源环境遥感宏观调查与动态监测研究[J].遥感学报,1997,1(3):225~230.
[7] 罗新正,朱 坦,孙广友,等.松嫩平原湿地荒漠化现状、成因和对策[J].中国沙漠,2003,23(4):372~378.
[8] 傅伯杰,陈立顶,马克明,等.景观生态学原理及应用[M].北京:科学出版社,2001.243~249.
[9] 丁圣彦,梁国付.近20年来河南沿黄湿地景观格局演化[J].地理学报,2004,59(5):653~661.
[10] 汪爱华,张树清,张 柏.三江平原沼泽湿地景观空间格局变化[J].生态学报,2003,23(2):237~243.
[11] 刘红玉.20世纪80年代以来挠力河流域湿地景观变化过程研究[J].地理科学,2002,22(5):636~640.
[12] Tian Xiang Yue,Ji Yuan Liu,Sven Erik Jorgensen,et al.Landscape change detection of the newly created wetland in Yellow River Delta [J].Ecological Modelling,2003,164:21-31.
[13] Alain Butet,Alain B A Leroux.Effects of agriculture development on vole dynamics and conservation of Montagu’s harrier in western French wetlands [J].Biological Conservation,2001,100:289-295.
[14] Nina M Kelly.Change to the landscape pattern of coastal North Carolina wetlands under the Clean Water Act,1984-1992[J].Landscape Ecology,2001,16:3-16.
[15] 刘兴土.松嫩平原退化土地整治与农业发展[M].北京:科学出版社,2001.
[16] 宋长春,何 岩,邓 伟.松嫩平原盐渍土壤生态地球化学[M].北京:科学出版社,2003.124~158.
