| 长江三峡库区6种退耕还林模式涵养水源与保育土壤效益及其价值估算 |
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| 引用本文： | 刘勇,;王玉杰,;王红霞,;王云琦,;孙素琪,;覃芳华,;刘李紫渊.长江三峡库区6种退耕还林模式涵养水源与保育土壤效益及其价值估算[J].中国水土保持科学,2014(6):50-58. |
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| 作者姓名： | 刘勇 ;王玉杰 ;王红霞 ;王云琦 ;孙素琪 ;覃芳华 ;刘李紫渊 |
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| 作者单位： | [1]水土保持与荒漠化防治教育部重点实验室,北京100083; [2]国家林业局林产工业规划设计院,北京100010 |
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| 基金项目： | 国家林业公益性行业科研专项“天然林保护等林业工程生态效益评价研究”（201304308） |
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| 摘 要： | 通过收集长江三峡库区22个区（县）30个退耕还林样地的调查数据,参考LY/T 1721—2008《森林生态系统服务评估规范》,对其中6种主要退耕还林模式涵养水源与保育土壤效益及其价值进行评估。结果表明：1）三峡库区6种主要退耕模式总调节水量（即涵养水源量）达到11.679 1亿t/a;调节水量的价值为68.37亿元/a,净化水质价值约为24.42亿元/a,涵养水源总价值约为92.79亿元/a;2）保育土壤总价值为0.903 6亿元/a,其中马尾松林、落叶阔叶林、竹林、板栗林、柑橘林和茶林保育土壤的价值分别为1 531万、2 251万、1 031万、2 815万、1 157万和251万元/a;3）三峡库区不同退耕模式取得的涵养水源效益和保育土壤效益都存在很大差别,因此,对三峡库区退耕还林工程生态效益不能只从总体上进行评价,还应该考虑不同退耕模式的生态效益,以便更好地评价和指导三峡库区退耕还林工程的实施;4）评价一种退耕模式的好坏,还要综合考虑多种生态效益。
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| 关 键 词： | 涵养水源 保育土壤 退耕还林工程 价值评估 三峡库区 |
Function and value assessment of soil and water conservation under six patterns of the Grain to Green Program in the Three Gorges Reservoir Area of the Yangtze River |
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| Institution: | Liu Yong , Wang Yujie , Wang Hongxia ,Wang Yunqi , Sun Suqi , Qin Fanghua , Liu Liziyuan ( 1. Key Lab. of Soil and Water Conservation and Desertification Combating of the Ministry of Education, 100083, Beijing, China; 2. Planning and Design Institute of Forest Products Industry, 100010, Beijing, China) |
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| Abstract: | Based on the survey data of the 30 grain plots of 22 regions（ counties） within the Three Gorges Reservoir Area,the benefits and economic value of water and soil conservation under six different patterns of returning cropland to forest were assessed with reference to the forest ecosystem services assessment specification（ LY / T 1721—2008）. Results showed that： 1） The total amount of conserved water was 1 167. 91 × 106 t / a,the value of regulated water was 68. 37 × 108 yuan / a,the value of purified water was 24. 42 × 108 yuan / a,and the value of conserved water was about 92. 79 × 108 yuan / a. 2） The total value of conserved soil was 90. 36 × 106 yuan / a,including Pinus massoniana Lamb. forest（ 15. 31× 106 yuan / a）,Larix gmelinii（ Ruprecht） Kuzeneva forest（ 22. 51 × 106 yuan / a）,Phyllostachys pubescens forest（ 10. 31 × 106 yuan / a）,Castanea mollissima Blume forest（ 28. 15 × 106 yuan / a）,Citrus reticulata Blanco forest（ 11. 57 × 106 yuan / a）,and Camellia sinensis（ L.） O. Ktze. forest（ 2. 51 × 106 yuan / a）. 3） Significant differences of water and soil conservation benefit assessments existed among sixdifferent patterns of returning cropland to forest. Therefore,in addition to overall evaluation of the ecological benefits of the Grain to Green Program in the Three Gorges Reservoir,the effects of different patterns should also be considered,which would further help assess and guide the implementation of the Grain to Green Project. 4） To evaluate the quality of a specific pattern of the Grain to Green Program,various ecologic benefits should be comprehensively considered. |
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| Keywords: | water conservation soil conservation the Grain to Green Program value assessment the Three Gorges Reservoir Area |
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