退耕地的自然演替与人工恢复

THE NATURAL SUCCESSION AND ARTIFICIAL RENEWAL OF THE RESTORED GRASS LAND

通过对河北坝上退耕地的演替阶段划分、物种多样性分析、土壤环境变化规律及几种人工牧草单播产量动态的研究 ,初步揭示了该区退耕地的自然演替规律 。

This paper initially revealed the natural succession law of the restored grass land and provided some theoretical basis for the west China's restored grass land from farmland by dividing the succession stages of the restored grass land of Hebei′s Bashang area, analyzing the diversity of species and researching on the law of changes of soil environment and the dynamics of the yield of some monocultured artificial forage.