喀斯特石漠化山区农业可持续发展模式研究——以花江示范区顶坛核心区为例

A Research on Modes of Sustainable Development Agriculture in Mountain Areas with Desertification of Karstic Stones——Taking the core area of Dingtan in Huajiang demonstration area as an instance

在花江示范区,以花椒的种植为切入点,沼气建设为纽带,养殖业为主要内容,建立了“猪—沼—椒”能源生态农业发展模式。该模式对花江峡谷区石漠化治理取得明显成效,但由于养殖饲料主要靠市场供给,影响了其自身的良性循环。为此,在此模式的基础上试验示范“草—鹅—沼”模式,作为“猪—沼—椒”模式的完善、补充。

In the demonstration area of Huangjiang, the mode of developing energy, ecology and agriculture is based on the idea of taking the planting of Chinese prickly ashes as the cutting-in point, the building up of biogas facilities as the link, and the breeding of livestock as the main content, which is reduced to a mode of ＂pigs, biogas and Chinese prickly ashes＂. Such a mode has achieved obvious success in bringing the desertification under control in the gorge district of Huajiang. But owing to the fact that the supply of feedstuff depends mainly on the market, the benign circulation in the mode itself is affected. For that reason, a mode of ＂grass, geese and biogas＂ has been set up as a supplement to the old mode.