...知道怎样具体操作，只能算理论指导，国外的则有点方法指导，两个是可以结合来 讲的 通常谈及的草地退化（grassland degradation）就是指草地生态系统退化（grassland ecosystem degradation）：草地生态系统的结构被破坏，生态系统中能量流动与物质循环失 调，...
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1．1．2草地退化 草地退化（rangeland degradation）是荒漠化（desertifieation）的主要表现形式 之一。
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... sequential treatment 序贯 degeneration of the grassplot 草地退化 nonisothermal condition 非等温条件 ...
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草地退化指数 grassland degradation index
草地退化梯度 degradation gradient of pasture
草地退化演替 Degenerated succession of grassland
草地退化趋势系数 grassland degradation trend coefficient
退化草地 depleted grassland
退化草地的恢复 rehabilitation of degraded rangelands ; integrated watershed management ; arid area development programmes
典型草原退化草地 Typical degraded grassland
退化草地建设 transformation of degraded grassland
The reasons of grassland degradation include human and natural two sides.
草地退化有人为和自然条件两方面的原因。
参考来源 - 青海省达日县草地状况遥感调查及退化原因研究The criteria and degree of rangeland degradation are discussed in this paper and based on these criteria and degree, the degraded rangeland map is made and the area of every degradation degree is calculated.
本文在讨论了草地退化指标及其等级划分的基础上，编制了中国北方退化草地分布图。
参考来源 - 中国北方草地退化及其防治对策Conclusions were as follows:Grassland degradation is quite serious in Maqu County.
取得以下主要的结论:1.玛曲草地退化相当严重。
参考来源 - 玛曲草地退化的成因及环境管理研究·2,447,543篇论文数据，部分数据来源于NoteExpress
因此，中度放牧草地是草地退化的警戒阈，应当引起关注。
So moderately grazed grassland was the threshold and should be addressed.
对黄河源区玛多县草地退化的自然和人为因素作了深入分析。
Natural and artificial factors of grassland degradation in Maduo County in source region of Yellow River were analyzed in this paper.
专家表示，除了沙漠化和草地退化，本地区的湿地和湖泊也在逐渐干枯。
Besides desertification and grassland shrinkage, the region's lakes and wetlands are also drying up, experts say.
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