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| Landscape fragmentation of the oil field region in the Hilly-gully region of Loess Plateau |
| Li Xiaoli<sup>1,2</sup>,Liu Guobin<sup>1</sup>,Zhang Xiaoping<sup>1</sup>,Meng Qingxiang<sup>3</sup> |
| 1.Research Center of Soil and Water Conservation and Ecological Environment,Ministry of Education and Chinese Academy of Sciences,712100,Yangling,Shaanxi;2.Graduate University of Chinese Academy of Sciences,100049,Beijing;3.College of Resources & Environment,Henan Agricultural University,450002,Zhengzhou,Henan: China |
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Abstract In this paper,the landscape pattern of Yangou catchment in the Hilly-gully region of Loess Plateau was studied with RS,GIS and field investigation with GPS,and that land use by oil exploitation and the resulting landscape fragmentation were analyzed.It was displayed that the oil field occupied rather a little land,but it was mainly high quality land for agricultural production and eco-environmental restoration.The area of forestland,grassland and farmland decreased,while the area of traffic,water,residential and industrial lands increased greatly in the oil field region of the catchment after three years of oil exploitation from 2003 to 2006.The fragmentation indexes of landscape of the three study areas were in descending order as follows: oil field region,whole catchments and non-oil field region.And those indexes of landscape elements in the oil field region were also increased significantly after oil exploitation.The results also revealed that roads had a great impact on landscape fragmentation in the oil field areas.
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Received: 17 October 2007
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