热带森林-砂仁生态系统可持续性的环境经济学分析

Sustainability of Amomum Villosom Ecosystem.

以曼么村为例 ,从环境经济学的观点出发 ,对热带森林 -砂仁生态系统的可持续性从经济及环境、生态等方面进行了分析。发现种植砂仁后 ,砂仁的经济效益的递增率不如资源环境成本的递增率快。生态环境的破坏 ,大大降低了砂仁的产量 ,从而更使得种植砂仁的经济效益停滞不前。由砂仁的外延式生产转为内涵式生产 ,采用轮作的经营方式 。

By applying theories of environmental economics,a case study of the Amomum villosom cultivation in Manme Village was conducted to analyze sustainability of the Amomum villosom ecosystem in tropical forest in the aspect of economy,environment and ecology. It was discovered after Amomum villosom trees were planted that the scaling up rate of their economic benefit was much lower than that of their cost in terms of resource environment. The destruction of the eco environment induced by Amomum villosom cultivation significantly affected the yield of amomum fruit,thus stagnating their economic benefit. The alteration from extensive production to intensive one by adopting a certain rotation system may well help Amomum villosom production develop sustainably.