摘要
土壤质量高低对植被恢复具有重要作用,它不仅影响植物群落的发生、发育和演替的速度,而且也对生态系统过程、生产力和结构等具有重要影响。植物演替过程,也是物种对土壤肥力逐渐适应、改造及不同物种在不同肥力梯度下相互竞争和代替的过程。因此,植被恢复过程也从多个方面影响着土壤质量,植被是土壤质量改善的重要驱动力之一。黄土高原地区实施退耕还林还草后土壤质量将在某种程度上得以恢复,不同类型植被土壤质量恢复还具有明显差异,并且在一定时间范围内,随恢复时间延长,土壤质量不断改善。
The soil quality plays an important role in plant restoration. It not only affects the occurrence and develops of vegetation community and the vegetation succession speed, but also has an important influence to the ecosystem process, the productivity and the structure. The vegetation succession is a process which species gradually adapt and improve to the soil fertility, and different species compete and displace mutual in different soil fertility grads. Therefore the plant restoration process influence from many factors, the vegetation is one of soil quality improvement important driving. In conclusion, the soil quality will be able to restore in some kind of degree after turning cultivated land back into forests and grasslands in the loess plateau area.
出处
《生态经济》
CSSCI
北大核心
2007年第3期39-46,共8页
Ecological Economy
基金
国家自然科学基金(编号:90502006)
西北农林科技大学创新团队项目
关键词
黄土高原
生态环境
植被恢复
土壤质量
loess plateau
environment
plant restoration
soil quality
