围栏封育对草地土壤养分改良效果的研究进展

Research Progress on the Effect of Fencing on Grassland Soil Nutrient Improvement

围栏封育是目前较为普遍的一种退化草地恢复措施,不仅有利于植被的恢复,也有利于土壤养分的改善。本文综述了了国内近年有关围栏封育对草地土壤有机质、氮、磷和钾含量影响的相关研究成果,归纳概括了影响封育改良土壤养分含量的因素,指出了今后的研究方向,为我国退化草地封育效益合理性研究和指导草地利用提供一定的基础资料和科学依据。

Fencing is currently a common restoration measure for degraded grassland,not only beneficial to the restoration of vegetation,but also to the improvement of soil nutrients.This study reviewed the relevant research results of recent years on the impact of fencing on grassland soil organic carbon,nitrogen,phosphorus and potassium content,summarized the factors that affect fencing improvement soil nutrient content,and pointed out the future research directions on degradation,which would provide reasonable basic data and scientific basis for the rationality of grassland fencing benefits and guidance for grassland use.