The Effects Of The Planted Forest Of Tamarindus Indica On The Degeneration Ecosystem In Yuanmou Dry-hot Valley

The climate and the condition of local growth is extremely bad. and the vegetation ecosystem is destroyed easily and restored difficultly in Yuanmou dry-hot valley. The massive study of many research institues for many years indicated: it is the most important work selecting the suitable tree seeds, building the planted forest of Tamarindus indica, restoring and reconstructing vegetation maximizely on renovating comprehensively the degeneration ecosystem in Yuanmou dry-hot valley. For the ecology benefit and the economical and the social efficiency, we choose Tamarindus indica as the host tree seed of tackling the area degeneration slopes, and construct the planted forest ecosystem in widespread resources investigation. By adopting the essential technical measure "digging big pits and mixing enough fertilizer, growing strong saplings in the bags, planting at the right moment, guaranteeing a soil moisture drought" and a series of effective comprehensive management measures, we have obtained success in building the planted forest of Tamarindus indica . A comparison and analysis of massive observation datas about the crops, the soil, the atmosphere and so on in the forest indicates that the effects of the planted forest ecosystem of Tamarindus indica are is obvious in Yuanmou dry-hot valley. The essential effects are as follows:1. The soil degeneration is under the obvious control (the physics characters of soil are improved, the fertility of soil is enhanced ) .2. The degree of soil erosion reduces.3. The dry-hot climate can be adjusted, the speed of wind is reduced.4. The plants reduces the degree of the lacks of the water, and grows normally.The degenerated ecosystem was transformed into the fine ecosystem obviously, and the degenerated land can be used reasonably by building the planted forest of Tamarindus indica .