复合池塘循环水养殖系统生态足迹分析

Ecological footprint analysis of the integrated ponds recirculating aquaculture system (IPRAS)

生态足迹模型已广泛应用于可持续发展的评估中。将生物塘、人工湿地、生态沟渠等生态工程系统与传统养殖塘有机结合而构建形成的复合池塘循环水养殖系统,作为一种新养殖模式,它具有循环微流水养殖、种养结合、水陆交互作用的特点。本文运用生态足迹方法对这一新养殖模式进行了定量分析。结果表明:就单位利润生态足迹量而言,复合池塘循环水养殖模式为2.92 ghm2/万元,而传统池塘养殖模式为4.91ghm2/万元,复合模式具有更高的生态经济综合效益,更符合可持续发展要求。

Ecological footprint model has been widely used in the assessment of sustainable development.The integrated recirculating pond aquaculture system which combined ecological projects such as biological ponds,constructed wetlands,ecological ditch and traditional pond aquaculture was a new kind of aquaculture model.It has micro-circulation water flow,planting and breeding combination,and water-land interaction characteristics.The quantitative analysis of this new model was made by using ecological footprint model in this paper.The results showed that the ecological footprint per unit profit of integrated pond aquaculture mode was 2.92 ghm^2 /10 thousand yuan while that of traditional pond model was 4.91 ghm^2 /10 thousand yuan.The former was lower than the latter which indicates that the integrated recirculating pond aquaculture model has more ecological and economic comprehensive benefits and is more sustainable.