In Yuanmou dry-hot valley, the Climate is hot and dry, the vegetation is sparse and the ecological environment is fragile.

元谋干热河谷区气候炎热干燥，植被稀疏，生态环境脆弱。

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Due to the extremely arid climate and high salt context in soil and underground water, the vegetation is very sparse and only 12 species of plants were found in the center of Tarim basin.

塔克拉玛干沙漠公路沿线气候恶劣、土壤和浅层地下水的含盐量高，沿线天然植被稀少，沙漠腹地仅发现12种能忍耐干旱和抗盐的植物种。

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Careful decisions must be made when traveling across vegetation. Select areas of durable vegetation, or sparse vegetation that is easily avoided.

当要通过植被时，要作出仔细的决定，选择耐践踏的或容易躲过的稀疏的植被的区域。

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For many of these regions, basic information required distinguishes between natural and anthropogenic sources of metals in waters, soils and vegetation is sparse or completely lacking.

UNESCO: EARTH SCIENCES FOR SOCIETY