摘要
三峡水库水位的反季节变动给消落带带来了一些不可避免的生态环境问题,同时也为消落带的利用提供了机遇。如何才能既对消落带土地资源进行有效利用,同时又能解决消落带内产生的生态环境问题,这是本文研究的主要目的。本文探讨了基塘工程这一基于三峡水库季节性水位变动和消落带地形特征而设计的湿地生态友好利用途径,并从作物产量和生物多样性改变两个方面对其生态经济效益进行了评价。结果表明,基塘工程具有可观的经济效益,同时基塘工程区域植物种类组成与对照区植物种类组成有明显差别。与对照区相比,基塘工程区拥有较多的水生植物和较少的陆生植物。研究表明,基塘工程是一种适合三峡水库消落带的生态友好型利用途径,有助于改善消落带湿地环境,保护和恢复消落带动植物多样性。
As results of the anti-season fluctuation of the water level,some eco-environmental problems have been taken into the littoral zone of Three Gorges Reservoir unavoidably,but it also offers us an opportunity to make use of this area.The purpose of this paper is to find an eco-friendly way to make use of the land in the littoral zone as well as the eco-environmental problems been dealt with.And the dike-pond project,an eco-friendly use of the littoral zone which was designed based on the seasonal water level change and the character of the landform,was discussed in this article.The ecological and economic benefits of dike-pond system were appraised through the production and the biodiversity change.The results showed that there was an considerable economic benefit generated from the dike-pond system,and the composition of the plant species is different between the dike-pond system and the contrast area.Compared with the contrast area,there were much more hydrophytes and less terrestrial plant in the dike-pond system.It was obviously that the dike-pond project is an eco-friendly way fitting to the littoral zone of the Three Gorges Reservoir,and it was helpful to improve the wetland environment and protect the biodiversity in the littoral zone.
出处
《重庆师范大学学报（自然科学版）》
CAS
2010年第6期23-26,共4页
Journal of Chongqing Normal University:Natural Science
基金
重庆市科委科技攻关项目(No.CSTC2009AB1079)
关键词
消落带
生态友好利用
基塘工程
三峡水库
littoral zone
eco-friendly use
dike-pond project
Three Gorges reservoir
