Small farmers in east-central Mexico produce organic shade coffee, an essential export.

位于墨西哥中东部韦拉克鲁斯的小农场出产有机荫生咖啡，这是墨西哥一种重要的出口商品。

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Coffee bushes must be grown in shade—neither too much, nor too little. A hillside is best—but it mustn't be too steep.

咖啡树必须种在荫凉处——不宜太稠密，也不宜太稀疏，最好种在山坡上——但不能太陡。

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Wang has mango trees, which also help to shade and protect his coffee plants.

王就种植了芒果树，这些树可以遮阳，对他的咖啡树起到保护作用。

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About 400 species have been recorded from shade coffee farms.

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So the shade trees protecting the coffee plants became overgrown, stifling the plantation and causing a shade-loving fungus to damage half of his plants.

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The One Million Trees initiative will help five coffee co-operatives grow shade trees to protect crops and establish tree nurseries.

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