西北地区植被恢复与建设的原则

Concept for Vegetation Rehabilitation and Construction in the North-west Region of China

在分析植被建设工程存在问题的基础上,提出我国西北地区实施退耕还林、天然林保护、防沙治沙等工程的植被建设中需遵循8项原则:统一规划与协调一致的原则;建设多类型植被,以地带性植被为主的原则;建设手段采用人工与天然相结合,以天然为主的原则;保护、开发利用相结合,以保护为主的原则;充分利用种质资源,以乡土树种为主的原则;合理利用水资源,建设以免灌溉植被为主的原则;乔灌草相结合,以灌草为主的原则;多种繁殖材料相结合,以种子繁殖和天然“克隆”为主的原则。

The thesis probes into the conceptions for vegetation restoration and construction in the North-west region of China. 8 principles are put forward and required when implementing the vegetation construction projects which include cropland conversion to forest, nature forest conservation, sand land prevention and control, etc. Those principles are as follows: unified layout with harmony; constructing multi-type vegetations and giving priority to local vegetation; combining artificial and nature means with focusing on nature ways; integrating protection, development and utilization with centering on protection; fully using seed resources with stressing on local tree species;rational utilizing water resources with emphasizing on constructing no irrigation vegetation; combining tree, shrub and grass while shrub and grass take priority; using different kinds of propagation materials with focusing on seed breeding and nature 'clone'.