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| Landscape pattern changes and driving force at county level in Hunan Province |
| Lu Peng1,2,Su Yirong2,Niu Zheng1,Wu Jinshui2 |
| 1.The State Key Laboratory of Remote Sensing Science,Institute of Remote Sensing Applications,Chinese Academy of Sciences,100101,Beijing; 2.The Institute of Subtropical Agriculture,Chinese Academy of Sciences,410125,Changsha: China |
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Abstract Based on the interpretation of TM imageries in 1980、1995、2000,the theory of landscape-ecology and the method of quantitative analysis,the characteristics and changes of landscape pattern in Taoyuan county were analyzed.The results showed that the matrix landscape in this area was woodlands and paddy field,which were embedded by other landscape patches.The average area and perimeter of patches decreased annually by 497.90hm2 and 646.95m respectively,which indicated that landscape fragmentation enhanced gradually.Landscape evenness decreased first and then increased,however,the dominance had the reverse trend.These results showed that landscape pattern will become smaller and smaller.In the study,canonical correlation analysis was applied to identify the driving forces of landscape pattern change and the different driving factors were labour forces,labour density,and rural social gross output value.The different canonical variants had different driving factors.
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Received: 17 April 2006
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