森林生态蓄水功能的经济评价(个案研究:伊朗扎格罗斯森林)(英文)

被引：6

作者：

Zahra Mashayekhi ^{[1
]}

Mostafa Panahi ^{[2
]}

Mahmoud Karami ^{[1
]}

Shahram Khalighi ^{[1
]}

Arash Malekian ^{[1
]}

机构：

[1] Natural Resources Faculty,University of Tehran

[2] Islamic Azad

来源：

JournalofForestryResearch | 2010年 / 21卷 / 03期

关键词：

Bazoft河流域; 曲线数字; 经济评价; 重置成本; 径流;

D O I：

暂无

中图分类号：

S718.5 [森林生态学];

学科分类号：

摘要：

森林生态服务直接或间接地造福人类。本文利用模拟模型和地理信息系统作为工具,分析生态因子对生态系统服务功能的作用,评估了伊朗西部扎格罗斯森林对Bazoft河流域水源保护的经济价值。应用HEC-HMS模型中的曲线数字法对降雨量-径流进行了模拟。该模型需要输入土地覆被、土壤、短期降雨和流出数据。用观测数据并分阶段校对对拟合模型的功效进行了修订。测定了森林在4种设定的土地覆盖方案中保水性和减少地表径流量的作用以及土地用途改变对该区降雨量-径流行为的影响。结果表明:方案一假定该流域全被森林覆盖,总的流出量将最小,降雨初期损失将增加。用重置成本法估算了森林水文功能之保水性经济价值。评估结果表明,每公顷Bazoft河流域的森林可以蓄存84.8立方米水,年产值0.5 US$/m3。因此,每公顷BazoR河流域的森林保水性经济评价值是43US$。说明覆被森林有利于该流域经济发展,该研究有助于决策者选择适当的、经济可行的发展策略。

引用

页码：293 / 300+396 +396-397

页数：10

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