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InVEST模型在生态系统服务评估中的应用研究以四川汶川地震灾区为例

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accounting for 1.77% of the Рdisaster area, the most prominent of which is Baoxing, followed Dujiangyan, Lixian, РMaoxian and Beichuan. Р(7) Compared the values of water conservation, soil conservation and carbon storage Рof three ecosystem services and biodiversity changes of earthquake affected areas Рwith that of before, the results show that the earthquake has serious damaged the Рecosystem services of affected areas. The average value of water conservation Рdecreased 1.69mm, reducing water conservation 1.28×108 m3·a-1; average value of Рsoil conservation function decreased 90 t•km-2.a-1(the sediments weighing about Р6.83×106 t would enter river for the loss of ecosystem function). The impact of Рearthquakes on the carbon storage is that the carbon stocks lowered primarily caused Р IV

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