| 松嫩平原水土保持价值复合计算模型的建立及应用 |
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| 引用本文： | 孙平安,林年丰,李昭阳,汤洁,汪雪格.松嫩平原水土保持价值复合计算模型的建立及应用[J].吉林大学学报(地球科学版),2006,36(3):433-442. |
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| 作者姓名： | 孙平安 林年丰 李昭阳 汤洁 汪雪格 |
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| 作者单位： | 吉林大学 环境与资源学院 ，长春 130026 |
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| 基金项目： | 国家自然科学基金项目(40572170,40273047)，中国工程院《东北水资源》重大咨询项目，吉林省科技发展计划项目(20000316) |
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| 摘 要： | 松嫩平原的生态环境在近几十年间严重恶化，荒漠化迅速发展，这与该区域水土保持功能持续下降有关。根据生态学、经济学和生态环境科学等学科的有关理论，以TM/MODIS/DEM数据为基础，应用3S技术建立了水土保持价值的复合计算模型，并以松嫩平原为研究区进行应用。计算结果表明，全区2001年水土保持价值总额为662.63亿元。就单位面积的水土保持价值而言，林地最高，为173.59 万元/km2；草地次之，为70.42 万元/km2；耕地较低，为24.53 万元/km2;难利用地仅为2.89 万元/km2。水土保持价值的分布趋势从东北向西南递减，从193.86 万元/km2降至18.87 万元/km2。可见，进行林地、草地建设是提高区域水土保持功能的关键，平原中、西部尤应加强水土保持工作。不仅解决了水土保持价值的量化问题，而且，为绿色GDP的核算提供了基础数据。
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| 关 键 词： | 松嫩平原 水土保持价值 复合计算模型 土地利用类型 TM/MODIS/DEM数据 |
| 文章编号： | 1671-5888（2006）03-0433-10 |
| 收稿时间： | 2005-11-16 |
| 修稿时间： | 2005-11-16 |
A Quantitative Computation Model of Water and Soil Conservation Value in Songnen Plain |
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| SUN Ping-an,LIN Nian-feng,LI Zhao-yang,TANG Jie,WANG Xue-ge.A Quantitative Computation Model of Water and Soil Conservation Value in Songnen Plain[J].Journal of Jilin Unviersity:Earth Science Edition,2006,36(3):433-442. |
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| Authors: | SUN Ping-an LIN Nian-feng LI Zhao-yang TANG Jie WANG Xue-ge |
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| Institution: | College of Environment and Resource, Jilin University, Changchun 130026, China |
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| Abstract: | In recent decades, the ecological environment of Songnen Plain had deteriorated severely and the desertification in Songnen Plain expanded rapidly, which is related to the durative descending of territorial function of water and soil conservation. Applying the theories of bionomics, economics, environmental science and the technology of 3S, a multiple computation model for water and soil conservation value in Songnen Plain is put forward based on DEM and TM/MODIS data. The calculation results indicate that the water and soil conservation value was 6.626 3×1010Yuan RMB in 2001 in Songnen Plain. The water and soil conservation value per unit area in forest was the highest with the value of 1.735 9×106 Yuan per km2 and the grassland and the cropland was 7.04×105 Yuan per km2, 2.453×105 Yuan per km2 repectively. The land that was difficult to use had a value of 2.89×104 Yuan per km2. The water soil conservation value tended to be digressive from northeast to southwest in spatial distribution. The water and soil conservation value was descending from 1.938 6×106 Yuan to 1.887×105 Yuan per km2. These results indicated that the key to heighten the function of territorial water and soil conservation is to enhance the eco construction for forest and grassland, and it should strengthen the water and soil conservation work especially in middle and western area of Songnen Plain. The trial to quantitatively evaluate the water and soil conservation will supply a basic data for green GDP accounting. |
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| Keywords: | Songnen Plain water and soil conservation value multiple computation model land use type TM/MODIS/DEM data |
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