在此基础上，分析了存在的主要问题，并提出了恢复途径及生态建设模式。

Then, this paper analyses major issues and suggests recovery approach and ecological construction mode.

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本文从深入探讨危机的成因入手，提出流域生态环境恢复的若干模式。

This in - depth study analyzed the causes to the crisis and suggested some modes to restore the ecological environment along the river basin.

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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.

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