近30年乌伦古河流域土地利用与生态系统服务价值变化研究
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国家自然科学基金项目“不同遮蔽及污化条件下雪层的吸、传热机理及其融雪过程模拟研究”(51769036);新疆维吾尔自治区自然科学基金项目(2017D01A43)


Variation of Land Use and Ecosystem Service Value in Ulungur River Basin in Past 30 Years
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    [目的] 识别新疆乌伦古河流域近30 a土地利用/覆被变化及生态系统服务价值响应,为指导该区水土资源优化配置提供科学依据。[方法] 选取研究区1989,1998,2006和2017年4期Landsat系列遥感影像,综合利用3S技术,监测并分析研究区近30 a LUCC时空演变特征,采用修正后的生态系统服务价值当量因子,计算并分析生态系统服务价值响应。[结果] ①近30 a乌伦古河流域耕地和建设用地面积呈持续增加扩张趋势,水体和湿地面积呈微增加趋势,未利用地呈显著减少趋势,林地面积呈波动增加趋势,草地面积1989—2006年呈减少趋势,2006—2017年呈微弱增加趋势。其中,耕地净增加量最大(847 km2),未利用地净减少量最大(744 km2),各土地利用类型转移显著区域主要位于福海县、杜热乡和齐干吉迭乡;②乌伦古河流域土地利用综合指数由1989年的146.75增加至2017年的168.29,生态系统服务价值(ESV)由1989年的2.635亿元增加至2017年的2.915亿元,净增加0.28亿元。[结论] 近30 a乌伦古河流域各土地利用类型面积均发生不同程度变化及相互转换,研究区土地资源总体处于高强度发展期,生态系统服务价值做出相应响应,总生态系统服务价值增加。

    Abstract:

    [Objective] The land use/cover change(LUCC) and the response of ecosystem service value(ESV) in the Ulungu River basin in the past 30 years were investigaged in order to provide scientific basis for guiding the optimal allocation of soil and water resources in this region.[Methods] The Landsat series of remote sensing images in 1989, 1998, 2006, and 2017 were selected, and the 3S technology was comprehensively used, to monitor and analyze the temporal and spatial evolution characteristics of LUCC in the study area in the past 30 years. The modified ESV equivalence factor was adopted to calculate and analyze the ESV response.[Results] ① In the past 30 years, the area of cultivated land and construction land in the Ulungur River basin had showed a trend of continuous increase and expansion. The area of water bodies and wetlands had showed a trend of slight increase, the area of the unused land had showed a trend of significant decrease, the area of forest land had showed a trend of increase with fluctuation, and the grassland area had showed a trend of decrease in 1989-2006 and a trend of slight increase in 2006-2017. Among them, the net increase of cultivated land was the largest(847 km2), while the net decrease of unused land was the largest(744 km2). The regions with the most significant land use type transfer were mainly located in Fuhai County, Dure Village, and Qiganjidi Village. ② The comprehensive land use index of the Ulungur River basin increased from 146.75 in 1989 to 168.29 in 2017. The ESV increased from 0.263 5 billion in 1989 to 0.291 5 billion in 2017, with a net increase of 28 million yuan.[Conclusion] The area of different land use types of the Ulungur River basin has changed and transformed in different degrees in the past 30 years. The land resources in the study area are in the period of high-intensity development. The ESV responds correspondingly, and the total ESV increases.

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薛嵩嵩,高凡,何兵,闫正龙.近30年乌伦古河流域土地利用与生态系统服务价值变化研究[J].水土保持通报,2019,39(6):223-229

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  • 收稿日期:2019-06-02
  • 最后修改日期:2019-06-19
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  • 在线发布日期: 2020-01-17
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