The optimum vegetation index and methods for collecting vegetation information in loess plateau area were studied and appraised.

研究评价了适于黄土高原地区植被信息提取的最佳植被指数和方法。

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And in the particular area, such as the Loess Plateau, rainwater has already become a kind of irreplaceable water resources utilization form.

而且在特定地区(如我国黄土高原地区)，雨水已成为一种不可替代的水资源利用形式。

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It is Shown by investigation data that flooded irrigation in the loess plateau area is a measure of soil conservation with less cost and high economic benefits.

调查资料表明，在黄土高原地区引洪漫灌是一项费用省、经济效益高的水保措施。

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