The programs were put into action at the beginning of 1999 with a target for a higher efficiency of utilization to lessen the pressure of population upon the limited land resource in Guizhou.
为了提高废弃地的利用效益，缓解贵州人多地少的矛盾，从1999年初开展了本研究。
The programs were put into action at the beginning of 1999 with a target for a higher efficiency of utilization to lessen the pressure of population upon the limited land resource in Guizhou.
为了提高废弃地的利用效益，缓解贵州人多地少的矛盾，从1999年初开展了本研究。
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