摘要
通过对祁连山地不同退耕还林模式生态系统服务功能的研究,可知:不同退耕还林模式对净化大气效应的作用,由高到低顺序为:青海云杉+白桦>白桦>青海云杉>撂荒地;对改良土壤效应的作用,由高到低顺序为:青海云杉+白桦>白桦>青海云杉>撂荒地;对改善小气候效应的作用,由高到低顺序为:青海云杉+白桦>白桦>青海云杉>撂荒地。
This article analyzed the ecological effects of different models of returning farmland to forest in Qilian mountainous. The results showed that: 1) the order of air purification effects from high to low was as follows: mixture of Picea crassifolia and Betula platyphylla > Betula platyphylla > Picea crassifolia > abandoned land; 2) the order of improved soil effects from high to low was as follows: mixture of Picea crassifolia and Betula platyphylla > Betula platyphylla > Picea crassifolia > abandoned land; 3) the order of improved microclimate effects from large to small was as follows: mixture of Picea crassifolia and Betula platyphylla > Betula platyphylla > Picea crassifolia > abandoned land.
引文
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