干瘠山地灌木保持水土效益的研究

Study on the Benefits of Water and Soil Conservation by Shrubs in the Arid and Poor Mountain Lands

在干旱瘠薄山地,灌木保持水土、涵养水源、改善生态环境等方面具有乔木树种不可代替的作用。通过对泰沂山区的调查研究,提出灌木资源的分布、生物产量、涵养水源保持水土的效益。利用生态学原理对灌木林的土壤物理性状、水文效益、抗旱性能进行分析研究,得出在干旱瘠薄山地灌木资源的扩大利用有广阔的前景。

In the arid and poor mountain lands, shrubs are used to conserve soil, water and headwater and to improve ecological environment, which can not be replaced by any tree species. Through the investigations of Taiyi mountain areas, this paper suggests the distribution of shrub resources, biomass production and effects of conserving headwater, soil and water. The principles of ecology are used to analyse physical properties of soils in shrub forests, hydrolic benefits and drought resistances thereby to conclude that the expanded utilization of shrub resources has the bright potential in the arid and poor mountain lands.