生物土壤与生态 |
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Spatial-Temporal Changes of Land Use and Ecosystem Services Value in the North of Tarim Basin: A case study on the Ugan-Kuqa River Delta Oasis |
ZHANG Fei1,2, TASHPLAT Tiyip1,2, DING Jian-li1,2,3, TIAN Yuan1,2 |
1.College of Resources and Environment Sciences, Xinjiang University, Urumqi 830046, China; 2.Key Laboratory of Oasis Ecology under Ministry of Education, Xinjiang University, Urumqi 830046, China; 3.Graduate School of Xinjiang University, Urumqi 830046, China |
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Abstract Ecosystem services value (ESV) has been one of the hottest issues in the field of ecology. The researches of ESV have greatly advanced in its theory, assessment scale and evaluation methods but its results were applied little. This paper took the Ugan-Kuqa River Delta Oasis as a case to analyze the spatial-temporal changes of land use and to examine their effect on the spatial-temporal changes of ecosystem services value (ESV). The methods are based on the Constanza's ecosystem service value (ESV) theory and the ecosystem service value coefficients of different Chinese ecosystem types published by Xie Gao-di. The following results and conclusions have been obtained: ①From 1996 to 2004, the total value of ecosystem services of the Ugan-Kuqa River Delta Oasis increased, however, there were some changes in the structure of ecosystem services value and the function of ecosystem services. ②The rate of primary material services value had the greatest increase from 1996 to 2004, whereas the rate of waste disposal services value had the greatest decrease. Thereinto, the rate of food production services value had the greater decrease during 2000—2004, because that the cultivated land with higher food produce value coefficient decreased. ③The ecosystem service value structure changed differentially in counties on the delta oasis. The proportion of water conservation, waste disposal and fallow recreation services value all decreased in Kuqa, Shaya and Xinhe County, especially the water conservation services value decreased at most. ④The sensitivity analysis suggested that these estimates are relatively reasonable. The sensitivity coefficients by Xie Gao-di are suitable for application in the study area.
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Received: 28 April 2008
Published: 07 September 2009
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