黄土高原植被建设及其有关问题思考  

Vegetation Construction in Loess Plateau and Consideration of Related Issues

作　　者：王晗生[1] 杜正科 

机构地区：[1]中国科学院水利部水土保持研究所 [2]陕西省长武县林果局,陕西长武713600

出　　处：《西北农业学报》2004年第3期135-142,共8页Acta Agriculturae Boreali-occidentalis Sinica

基　　金：中国科学院长武农业生态试验站cern项目

摘　　要：针对黄土高原植被现状,阐述了其建设历程并系统分析了存在的问题,以期准确地把握当前的植被建设。表明植被建设应当是包括农作物在内的广义植被建设,不可"头疼治头,脚疼医脚"。需要加强对优良乡土植物种的繁育及试种,改良提高造林成活率的传统技术,充分考虑天然植被在立地类型划分上的意义,重视适地适树以及合理的群落结构。提出了一些值得阐明的问题,试图从作物栽培与林草植被建造既相区别又相联系的特点中,使植被建设思路更清晰、更完整。Aimed at the actuality of vegetation in the Loess Plateau , the paper expounded the evolution of vegetation construction and systematically analyzed the existing issues so as to well and truly grasp present vegetation construction in the Loess Plateau.It is showed that vegetation construction should be in a broad sense including crop cultivation without unilateralism.It is necessary that breeding and experimentally growing fine native plants should be strengthened;traditional techniques of enhancing afforestation survival improved;significance of natural vegetation in site classification taken fully into account; afforestation of suitable site with suitable tree and reasonable community structure valued .At last ,several problems worth clarifying are even put forward so as to make the thought of vegetation construction still clearer and more integrated from characteristics both different and related between crop cultivation and tree or and grass vegetation growing.

关 键 词：黄土高原 植被建设 树种引进 适地适树 群落结构 粮食生产 经济发展 

分 类 号：X173[环境科学与工程—环境科学]