福建省长汀县崩岗生物治理模式的生态环境效应分析

Analysis of Eco-environmental Effects of the Collapse Bio-management Model in Changting County

崩岗是土壤侵蚀最严重、危害极大的特殊侵蚀地貌类型。长汀水土流失区崩岗发育数量众多,治理难度大。本文对比分析了崩岗采取生物治理措施后环境因子的变化,结果表明经生物措施治理后,崩岗侵蚀区土壤侵蚀量、小气候特征、土壤理化性质和生物群落特征等生态环境因子都得到显著改善,取得了明显的生态效应。生物治理模式可作为长汀县崩岗治理的一种有效措施加以推广。

Collapsing is the most serious and harmful erosion landforms type in the soil erosion. There are lots of col-lapsing hills difficult in management. Based on the comparative analysis, it was analyzed the changes of the environ-mental factors after adopting the biological control measures. The results showed that, after the biological control, the soil erosion amount, micro - climate characteristics, soil physical and chemical properties and the bio - community characteristics have been improved obviously, with good eco - effect. The bio - management model may be used as the effective measure for the collapsing control and extension in Changting County .