珠江三角洲基塘系统几种典型模式的生态经济分析

在大量收集珠江三角洲基塘系统的历史资料及实地调查研究其典型地区的基塘系统的基础上，总结了现阶段在塘系统的主要模式类型，并选取其中的精养家鱼－草、鸽－家鱼－草、鸭－家鱼、猪－家鱼－草、猪－家鱼－特种鱼－作物、异地鸡－饲料鱼－特种鱼6种典型模式进行详细的生态经济分析，结果表明不同的模式各具特色，选择模式应视具体情况而定；经济因素对其塘系统的良性循环格局起决定性的作用；综合养鱼及区域特质大循环有显著的生态经济合理性，应大力推广。

Ecoeconomical Analysis on Some Typical Models of Dike- Pond System in the Pearl River Delta

On the basis of historic information collected on the dike pond system and field investigation data, the dike pond system of typical region in the Pearl River Delta was studied. Its present main types were summarized, of which the ecoeconomical effects of six typical models were analyzed in detail. The results showed that different models had different features, and the favourable cycle of dike pond system was determined by various economical factors. Owing to the predominant ecoeconomical rationality of the integrative fish farming model and local material utilization models,they are worth widespread popularization.