Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Journal of Arid Land Resources and Environment》 2018-12
Add to Favorite Get Latest Update

Change of land use and landscape pattern in ecological resettlement area in central Ningxia

WANG Peng;WANG Yajuan;LIU Xiaopeng;WEN Shengqiang;School of Resources and Environment,Ningxia University;Key Laboratory (China-Arab) of Resource Evaluation and Environmental Regulation of Arid Region in Ningxia;  
Taking the Hongsibu district,the largest ecological immigrant resettlement area in the country,as an example,the remote sensing interpretation data of 1995,2000,2005,2010 and 2015 were used as the basic data source,By using RS and GIS technologies,the land use dynamic degree and transfer matrix model were constructed,then the landscape pattern index and other methods were applied to study the land use and landscape pattern changes in Hongsibu resettlement area. The results show that the area of land use types in the Hongsibu resettlement area had undergone significant changes during the study period. The area of grassland decreased most obviously; the area of cultivated land and water area increased firstly and then decreased,and then increased; the area of forest land increased continuously. There was a " V"-type change trend for construction land that decreased firstly and then increased,and its change range increased year by year. Sandy land and unused land area fluctuated significantly during the study period. According to the land-use transfer matrix,there were differences in land use in the Hongsibu resettlement area during various periods,but overall,the increase in construction land,forest land,and cultivated land mainly came from grassland. From the perspective of the landscape pattern,the fragmentation of the landscape pattern in the Hongsibu resettlement area was serious,the landscape diversity index increased,the landscape stability increased,the patch became more and more discretized,and the complexity increased. It could be seen that the overall change in the landscape pattern of the Hongsibu resettlement area is manifested in the increase of landscape fragmentation and decline of landscape heterogeneity,and the landscape shapes tend to become more complex.
【Fund】: 国家自然科学基金项目(41461039)资助
【CateGory Index】: F301.24
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved