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本文采用生态效益为主,经济效益为辅的原则,从生态系统林木及林副产品、涵养水源、水质净化、水土保持、固碳释氧、净化大气、防浪护堤、维持生物多样性等8大特征构建了防护林优化模式评价指标体系,并在对防护林实地调查、样本分析的基础上,对环洞庭湖防护林体系进行了优化模式的选择。
In this paper, the principle of ecological benefits and supplemented by economic benefits is adopted. From the perspectives of ecosystem forests and forest by-products, conservation of water sources, water purification, soil and water conservation, carbon fixation and oxygen release, atmosphere cleanup, berm protection and biodiversity conservation Large features to build an evaluation index system of shelterbelts optimization model, and based on the field investigation and sample analysis of shelterbelts, the optimization model selection of ring shelterbelts in Dongting Lake was conducted.