基于水源涵养功能的生态红线划定方法研究

发布时间：2018-03-05 22:21

本文选题：生态红线　切入点：水源涵养　出处：《生态环境学报》2017年10期 　论文类型：期刊论文

【摘要】：生态红线是2011年首次被提出的全新概念,如何科学划定区域生态红线是一个亟待探讨解决的新课题。该研究以四川省为调查对象,采用多源遥感数据、气象站点数据以及太阳辐射站点等数据,综合运用GIS技术、区域水量平衡法等研究手段,从水源涵养功能价值的角度探讨生态红线的划定方法。结果表明:四川省水源涵养量在5.38~1 187.29 mm之间,各地区分布差异显著。四川盆地水源涵养量最高,平均达200 mm以上;川西南山区和四川盆周山区次之,其值在100~200 mm之间;川西北高山高原地区最低,水源涵养量普遍低于100 mm。根据四川省各地水源涵养功能价值差异,将其划分为5个等级生态功能区,即一般重要、轻度重要、中度重要、高度重要和极重要功能区。其中,一般重要和轻度重要功能区的水源涵养量低于150 mm,生态价值不高,面积总和298 911 km~2,占四川省总面积61.63%;中度重要功能区面积95 992 km~2,占四川省总面积19.79%,该功能区水源涵养量为150~200 mm,生态价值一般;高度重要和极重要功能区的水源涵养量高于200 mm,生态价值较高,面积总计90 107 km~2,占四川省总面积18.57%。四川生态红线区水源涵养量达250 mm以上,总面积6 715 km~2,占四川国土总面积1.38%,集中分布于四川盆地的雅安市东部、眉山市西南部和乐山市西北部地区。实地调查显示,该研究划定的生态红线区内不仅水源涵养量丰富,而且水源保护区和水源补给区分布众多,属四川水源涵养极重要的生态功能区。该研究提出的水源涵养生态红线划定方法具有一定的参考价值,研究成果对于中国其他地区生态保护红线的划定工作具有借鉴意义。
[Abstract]:Ecological red line is a new concept put forward for the first time in 2011. How to scientifically delineate the ecological red line of the region is a new topic to be solved urgently. This study takes Sichuan Province as the object of investigation and adopts multi-source remote sensing data. Meteorological station data and solar radiation station data, comprehensive use of GIS technology, regional water balance method and other research means, From the angle of the function value of water conservation, the method of determining ecological red line is discussed. The results show that the water conservation amount of Sichuan Province is between 5.38 mm and 1 187.29 mm, and the distribution of different regions is remarkable. The Sichuan Basin has the highest amount of water conservation, with an average of more than 200 mm. The mountain area of southwest Sichuan and the mountain area around the basin of Sichuan were the second with the value between 100 ~ 200 mm, and the mountain plateau of northwest Sichuan had the lowest amount of water conservation, and the amount of water conservation was generally less than 100 mm. according to the value difference of water conservation function in various parts of Sichuan Province, It is divided into five grades of ecological functional areas, namely, general important, light important, moderate important, highly important and extremely important functional areas, in which, the water conservation amount of general important and light important functional areas is less than 150 mm, and the ecological value is not high. The total area of this area is 298 911 km2, accounting for 61.63 mm of the total area of Sichuan province, and the area of moderate important functional area is 95 992 km / 2, accounting for 19.79 mm of the total area of Sichuan Province. The water conservation capacity of this functional area is 150 ~ 200 mm, and the ecological value is general. The water conservation amount of the highly important and extremely important functional areas is more than 200 mm, and the ecological value is relatively high. The total area is 90,107 km2, accounting for 18.57% of the total area of Sichuan Province. The amount of water conservation in the Eco-Red Line area of Sichuan Province is more than 250 mm. The total area is 6 715 km2, accounting for 1.38% of the total land area of Sichuan. It is concentrated in the eastern part of Ya'an City, the southwest of Meishan City and the northwestern part of Leshan City in Sichuan Basin. The field investigation shows that the ecological red line area delineated by this study is not only rich in water conservation but also rich in water conservation. And the water source protection area and the water source recharge area are numerous and belong to the important ecological function area of water conservation in Sichuan. The method of determining the ecological red line of water source conservation proposed by this study has certain reference value. The research results can be used for reference in other areas of China to delimit the red line of ecological protection.
【作者单位】：西南民族大学化学与环境保护工程学院;成都信息工程大学资源环境学院;
【基金】：四川省教育厅重点项目(15ZA0393) 四川省社科规划一般项目(SC14B103) 国家自然科学基金项目(41301653)
【分类号】：TV213.4;X321

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