贵州北盘江镇喀斯特峡谷石漠化地区生态经济治理模式及效益分析

 石漠化地区是造林的困难地带和生态治理的重点地区。为了加快石漠化的综合治理,以喀斯特石漠化发育典型的北盘江镇花江大峡谷右岸的顶坛片区为例,在阐述顶坛片区的自然环境条件及石漠化现状的基础上,分析目前正在实施的几种石漠化治理模式:如“花椒—养猪—沼气”模式、“砂仁—养猪—沼气”模式、“传统粮食经济作物(如玉米、花生等)—砂仁、花椒”套种模式等,对这几种发展模式的生态经济效益、发展潜力、存在的问题等进行对比研究,查明第1种和第2种模式经济效益好,而第3种模式有更好的生态效益,并针对存在的问题,提出了对策。

Analysis of Eco-economic Control Models and Benefits of Rocky desertification Region in Huajiang Karst Gorge in Guizhou

Rocky desertification region was the difficult area of afforestation and the key area of eco-environment conservation. In order to accelerate comprehensive control, Dingtanpian region on right bank of Huajiang Gorge where Karst rocky desertification develops typically was taken as an example. Based on expatiating natural conditions and actual rock desertification conditions of Dingdianpian region, several eco-environment conservation models of anti-rocky desertification which were being brought into effect were analyzed in detail, such as "Bambooleaf pricklyash+breed pigs+marsh gas"(model one) "Amomum villosum+breed pigs+marsh gas model"(model two)"Traditional grain and economic crop (corn, peanut)+Amomum villosum or Bambooleaf pricklyash model"(model three), etc. The eco-economic benefits, development potential and problems of these models were studied. The results showed that in the terms of economic benefits, model one and model two were better, model three was the best. And aiming at existing problems, countermeasures for next works of anti-rocky desertification were put forward briefly.