此外针对三江源区湿地生态系统退化机制和存在的主要问题，提出了合理利用与保护对策。
In addition, Measures on reasonable utilization and conservation are put forward on the basis of degradation mechanism and problem of wetlands ecosystem in Sanjiangyuan region.
由于人类利用和改造湿地资源活动的日益加剧，湿地正在全世界范围内面临威胁，并已成为退化最为严重的生态系统。
With more and more activities of using and changing wetland by human, wetland is facing with worldwide threat and has become one of the most degraded ecosystems.
因此研究退化湿地土壤的理化性质，不仅有助于我们了解毛乌素沙区湿地退化的原因，还为进一步保护湿地生态系统提供了理论依据。
So, study the physical and chemical properties of degraded wetland soils help to investigate the cause of wetland degraded and provide theoretical basis for wetlands ecosystem protecting.
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