河流生态封育效果后评估

Post Evaluation in Enclosure Effect for River Ecology

为了解决河流面源污染和恢复河岸带生态状况,辽宁省于2012年开始展开了辽河干流自然封育工作并进行了后评估。结果表明,辽宁省沈阳市的河流生态封育围栏工程建设形成了清晰的封育边界,封育区内,河岸带土著性物种开始繁衍,生物多样性得到逐渐恢复,河流生态逐步向好。但同时存在退耕补助标准不统一、补偿费发放较晚、后续围栏运行管护和宣传不到位等问题。建议在实施过程中,统一回租补助标准,尽快落实封育围栏管理办法和经费,保证日常管理和维护及时到位。

In order to solve the problems of non-point source pollution in rivers and restore ecological situation along river bank zones,the work was done in natural enclosure and its post evaluation was carried out for main stream of Liao River in Liaoning Province from the year 2012.The results show that the clear enclosure boundary benefit from the construction in river ecological enclosure fencing works in Shenyang City of Liaoning Province has been formed,in enclosure areas,indigenous species along river bank zones started multiplying,biological diversity was gotten restoring gradually,also the river ecology became better gradually.However,in the ecological construction,at the same time there are some problems such as disunity of subside standard in returning farmland,granting compensation fee lately,follow-up operation,management and control and conducting propaganda for the fencing are not fulfillment.For this reason,the author suggests that in the implementation,unifying leaseback subside standard,as soon as possible implementing management method and funds for the enclosure fencing,and ensuring daily management and maintenance for the fencing timely and fulfillment.