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为对云南元谋干热河谷退化生态系统进行治理,选择罗望子作为治理该区退化坡地的主栽树种,营建了罗望子林人工植被系统。通过对该系统相关林木的生长,土壤、大气等生态因子大量观测数据的比较分析表明:在元谋干热河谷区,选择罗望子作为主栽树种营建罗望子林人工植被系统治理退化坡地的生态效应明显。主要表现为:(1)土壤退化得到明显控制(土壤物理性状获得改善,土壤肥力得到提高);(2)水土流失程度减轻;(3)干热气候得以调节,风速有所降低;(4)植物缺水程度减轻,能够正常健康生长。
In order to control the degraded ecosystem of Yuanmou dry and hot valley in Yunnan Province, Tamarindus indica was selected as the main tree species for the degradation of sloping slopes in this area, and an artificial vegetation system of Tamarindus indica was established. The comparative analysis of the large number of observation data about the growth, soil, atmosphere and other ecological factors of this system showed that in the Yuanmou dry-hot valley, the ecological effect of establishing Tamarindus plantation artificial vegetation system to control degraded slope was selected as the main tree species obvious. Mainly showed as follows: (1) soil degradation was obviously controlled (soil physical properties improved and soil fertility improved); (2) soil erosion was relieved; (3) dry and warm climate was adjusted and wind speed was reduced; (4) Plant water scarcity, to normal and healthy growth.