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《Journal of Lanzhou Jiaotong University》 2017-04
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Landscape Pattern and Its Driving Forces of Shiyang River Basin

GUAN Hui-yuan;ZHANG Guo-bin;School of Architecture and Urban Planning,Lanzhou Jiaotong University;School of Geography and Environmental Science,Northwest Normal University;  
The temporal and spatial variation of landscape pattern has significant influence on the regional climate,ecological environment and harmonious development of human and nature.Based on MODIS land cover data of 2001,2006 and 2015 in Shiyang River Basin,the landscape pattern change and its driving force factors for nearly 15 years in this region are studied by using landscape pattern index and principal component analysis.The study indicated following results:1)from 2001 to 2015,grassland and agriculture area increased rapidly while shrub land and unused land decreased rapidly;2)the fragmentation of water,forest and agriculture area in study area kept increasing while the fragmentation of shrub land and instruction area decreased,and landscape fragmentation in the whole area decreased and patches tended to be simple,which strengthened the stability of the river basin system;3)the improvement of landscape pattern was closely related to the change of warm and humid climate;the main driving factors were social,economic and agricultural development factors,and the policy was one of the most important driving factors.
【CateGory Index】: P901
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