震后茂县牟托村堆积物特征与植被分布关系
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摘要
"5·12"大地震后,茂县牟托地区的地形地貌和生态系统受到很大的破坏。本文对茂县牟托地区典型斜坡的植物生长状况、土壤颗粒组成、土壤含水率进行了调查分析,获得了土壤颗粒大小、渗透性、含水率与植物生长之间的关系;研究表明,土壤颗粒组成中,细颗粒所占比例越高,其渗透系数越小,土壤含水率越大,植物的生长状况愈佳;土壤细颗粒所占比例相近的情况下,含水率高的地区植物生长好。根据研究成果,结合生态恢复的技术和方案实施的安全性以及可行性,提出水泥喷灌、修筑挡水阶梯和排水沟、种植植物等生态恢复的方案以及保持斜坡稳定的措施。
After the "5·12" earthquake,landforms and ecosystems of Moutuo Village of Maoxian County suffer great damage.This article is based on analysis of the plant growth and soil particle composition and soil water content this area,gets relationship among soil particle size,permeability,Moisture content and plant growth.The research shows the higher the proportion of fine particles in soil particle composition,the the permeability coefficient is lower,and the moisture content of the soil is more,and the plant grow best in this case.The soil in the proportion of fine particles in almost cases,the high water content in plants grow better.According to the research results,combined with the safety and feasibility of ecological restoration technology and plan,this article provides ecological restoration scheme and the measure of keeping the slope stability that Cement sprinkling irrigation and water retaining step and gutter construction and plant cultivation.
After the "5·12" earthquake,landforms and ecosystems of Moutuo Village of Maoxian County suffer great damage.This article is based on analysis of the plant growth and soil particle composition and soil water content this area,gets relationship among soil particle size,permeability,Moisture content and plant growth.The research shows the higher the proportion of fine particles in soil particle composition,the the permeability coefficient is lower,and the moisture content of the soil is more,and the plant grow best in this case.The soil in the proportion of fine particles in almost cases,the high water content in plants grow better.According to the research results,combined with the safety and feasibility of ecological restoration technology and plan,this article provides ecological restoration scheme and the measure of keeping the slope stability that Cement sprinkling irrigation and water retaining step and gutter construction and plant cultivation.
引文
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[3]韩东银,魏英祖.西部生态系统震害及其基本防御措施[J].西北地震学报.2005,27(4):337-341.
[4]吴建华.地震与生态环境关系初探[J].山西地震.2000(4):32-34.
[5]王黎军,丁小刚,周辉.土壤含水率的预测模型.中国农村水利水电.2010,(4):79-84.
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[7]柯葵,朱立明,李嵘.水力学[M].上海:同济大学出版社.2000.
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