轻度放牧或过度放牧都可以引起人工草地的退化演替。
Light grazing or over grazing lead to deteriorative succession of artificial sward.
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.
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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