分析了草地类型生态系统退化的现状、原因及其恢复途径，提出人工草地的建立是恢复退化天然草地的有效途径；
This paper analyzed the degradation actuality of natural grassland, its reasons and corresponding restoration ways. Natural restoration is the easiest way, but it is very slow.
应用恢复生态学原理，提出了三江源区退化高寒草地生态系统恢复与重建模式。
Then, using the principles of the restoration of ecology, proposed the alpine meadow degradation ecosystem restoration and reconstruction pattern in the source region of three rivers.
论述了黄河三角洲草地的形成与演替及当前草地碱化、退化、植被减少、生态系统恶化情况。
The grassland formation and succession in Yellow River Delta were discussed. The salinization, grassland degradation and ecosystem deterioration in the region were described.
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