黄土高原森林改良土壤的生态效益研究

由于长期的植被破坏和严重的水土流失黄土高原土壤环境的恶化是无容置疑的事实。问题是我们怎样做才能改良土壤,使其有良好的结构和最高的肥力,从而生产更多更好的第一性产品。我们知道,森林不仅是陆地生态系统的分布最广,生物总量最大的植被类型,而且具有最高的种的多样性、复杂的空间结构和很高效能流程复杂的能量转化和物质循环,本文就黄土高原土壤改良中森林的作用进行初步分析研究,不妥之处敬请批评指正。

THE STUDY OF ECOLOGICAL BENEFIT OF THE IMPROVEMENT OF SOIL BY FOREST IN LOESS PLATEAU

It is a indubitable fact that the deterioration of soil environment in loess plateau is caused by the long----standing destruction of vegetation and the serious erosion of soil and wa- ter. The proble is that how we can improve the soil in order to make it have good structure and the most effective fertility, thus producting the more and better primary produce. Forest not is only the vegetation type that is of most widespread distribution, but also possess the variest species, complex space structure and conversion of energy and circulation of matter with the more effec- tive energy and complex process. In this article, the authors preliminaryly discuss the action of forest in soil improvment of Loess Plateau.