They help farms grow better and more food, look for ways to conserve soil and water, and design tools and equipment.
他们可以让农业丰产，保护水土资源和设计工具设备。
Around 348 million hectares of forests are used to conserve soil and water, control avalanches and desertification, stabilize sand dunes and protect coastal areas.
大约3.48亿公顷森林用于保持水土资源，控制雪崩和荒漠化，稳定沙丘和保护沿海地区。
In the arid and poor mountain lands, shrubs are used to conserve soil, water and headwater and to improve ecological environment, which can not be replaced by any tree species.
在干旱瘠薄山地，灌木保持水土、涵养水源、改善生态环境等方面具有乔木树种不可代替的作用。
Terraced field can conserve water, soil and maintenance nutrient, and improve local ecological environment. At the same time, its impacts on local social economy and shaking off poverty are important.
梯田除了有效地发挥着蓄水、保土、保肥以及改善局域生态环境等功能外，对当地社会、经济，以及农民的脱贫致富发挥了重要作用。
Terraced field can conserve water, soil and maintenance nutrient, and improve local ecological environment. At the same time, its impacts on local social economy and shaking off poverty are important.
梯田除了有效地发挥着蓄水、保土、保肥以及改善局域生态环境等功能外，对当地社会、经济，以及农民的脱贫致富发挥了重要作用。
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