Land cover and landscape pattern changes in Poyang Lake region of China in 1980-2010

Wang, J-le.; Ran, Y-ying.; Zhang, Y-jie.; Cao, X-ming.; Yang, F.

Ying Yong Sheng Tai Xue Bao 24(4): 1085-1093

2013


ISSN/ISBN: 1001-9332
PMID: 23898669
Document Number: 669126
Based on the land cover datasets of Poyang Lake region in 1980, 2005, and 2010, and by using GIS, RS, and landscape ecology approaches, this paper studied the land cover and landscape pattern changes in this region from 1980 to 2010, and quantitatively analyzed the land cover types change degree, patch area index, patch shape index, margin density index, and landscape diversity index. In 1980-2010, the main land cover types in this region were paddy field, inland water, evergreen broadleaf forest, and urban built-up area, and their areas and spatial patterns varied dramatically. Overall, the areas of inland water and urban built-up area had a significant increase, while those of paddy field and dry farmland decreased somewhat. Due to the effects of population growth and economic development, the landscape fragmentation degree and landscape diversity index presented a decreasing trend, but the decrement was small, which implied that the previous environmental management of this region had exerted important roles, but a long term challenge was still faced with between the regional environmental protection and sustainable development.

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