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Editore: Yellow River Water Conservancy Publishing House, 2007
ISBN 10: 7807348577ISBN 13: 9787807348573
Da: liu xing, Nanjing JiangSu, JS, Cina
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paperback. Condizione: New. Language:Chinese.Pages Number: 130 Publisher: Yellow River Water Conservancy Publishing House. China is a serious soil erosion in the country. more than 50% of the land area of ??mountains. hills. loess there are a lot of bare plateau slope. erosion is very serious. these areas are the focus of China s soil erosion control areas. Especially 30 years of reform and opening up national infrastructure faster. in building roads. railways. quarrying. mining. Construction of reservoirs and power sta.