不同治理措施对河堤两岸植物多样性的影响

Effects of Different Management Measures on Plant Diversity along River Banks

为了保护好河堤两岸植物多样性,依据相关评价技术规范,并结合植物资源调查方法,对不同治理措施水泥砂浆石墙、混凝土护坡和石笼治理前后两岸植物多样性进行了调查。选取景观/生态系统、植物群落、种群/物种等6项指标,定性和定量地分析和评价了不同治理措施对植物多样性的影响。结果表明:水泥砂浆石墙治理和混凝土护坡治理对两岸植物多样性的影响属中度影响,石笼治理属低度影响。建议在河道堤岸治理过程中优先选用石笼治理。

In order to protect plant diversity along the river banks,according to relevant assessment technical specifications and survey method of plant resources,the plant diversity on both sides of the river bank was investigated before and after the treatment of cement mortar stone wall,concrete slope protection and stone cage.More than 6 indexes including landscape,ecosystem,plant population,population were analyzed,in order to evaluate the effects of different treatment measures on plant diversity.Result showed that the effect of grouting mortal stone wall and concrete slope on plant diversity were moderate,the effect of gabion on plant diversity was low.It is suggested that the gabion should be preferred in the process of river bank management.