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吴旗县覆沙黄土区退耕还林结合封禁的植被恢复效果研究 预览 被引量:12

Study on Revegetation Effect of Returning Farmland to Forestry Combining Closure in Sand Covered and Loess Region in Wuqi County
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摘要 通过调查吴旗县覆沙黄土区不同时段封禁造林情况,并对此地区植被群落的重要值、物种丰富度、生物量等指标进行分析研究。结果表明:实施封禁造林3~4a,一年生植物很快侵入,但整个群落无明显优势种;封禁造林5~6a,禾本科、豆科、菊科的一些物种逐渐占据优势,形成了地带性植被;封禁造林10年后,植被基本恢复到与环境相适应的稳定群落。 The indexes of importance value , species abundance and biomass about vegetation community in sand covered and loess region in Wuqi county in different time-interval are analyzed,through investigating the situation of the closed vegetational type. The results indicates that the area during closing and afforesting forests about 3 - 4 years, the annual plant intruded quickly ,but there were no obvious dominant socials in the vegetation community; the forests closed and afforested about 5-6 years, some species of the gramineous, leguminous and composite vegetation would inhabit the predominance as the characteristics of zonality plant; after the plants closed and afforested more than 10 years, the vegetation is basically coherent to the stable plant community.
作者 罗国占 赵廷宁 王贤 孙保平 曹子龙 LUO Guo - zhan, ZHAO Ting - ning, WANG Xian, SUN Bao - ping, CAO Zi - long (Soil and Water Conservation College, Beijing Forestry University, Beijing 100083, China)
出处 《水土保持研究》 CSCD 北大核心 2006年第3期 80-82,共3页 Research of Soil and Water Conservation
关键词 退耕还林 封禁 植被恢复 吴旗县 生物量 returning farmland to forestry closure revegetation Wuqi county
作者简介 罗国占(1980-),男,内蒙古呼伦贝尔人。硕士研究生,主要从事水土保持荒漠化研究; 责任作者。赵廷宁。
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