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Filling Gullies to Create Farmland on the Loess Plateau

机译：填满沟壑在黄土高原上创造农田

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摘要

The Loess Plateau region of China covers an area of about 648 700 km~2 and supplies a large proportion of the nation's food. The soils derived from loessial deposits are poorly structured and are highly susceptible to erosion by water in an area that covers about 70% of the Plateau. In its most severe form, water erosion has resulted in gully formation so that the Loess Plateau now has a unique landscape that is incised by numerous gullies, of which 270 000 are longer than 500 m, which hinder agricultural and industrial development. Therefore, the further restoration of this large area of the Loess Plateau is a serious problem confronting China. Currently, the typical approach is to continue to build more check-dams to trap the sediment transported in the gully system. However, during the 400 year history of using check dams to intercept sediments from the Loess Plateau, the sediments in the Yellow River did not necessarily decrease, but even increased at times. Therefore, we deem that filling gullies to create farmland on the Loess Plateau should be considered.
机译：中国的黄土高原地区面积约648 700 km〜2，供应着全国大部分的粮食。黄土沉积物的土壤结构较差，在高原地区约占70％的地区极易受到水的侵蚀。在最严重的形式下，水蚀导致了沟壑的形成，因此黄土高原现在具有独特的景观，由众多沟壑切割而成，其中有270 000多于500 m，这阻碍了农业和工业的发展。因此，进一步恢复黄土高原这一大片地区是中国面临的严重问题。当前，典型的方法是继续建造更多的防洪坝，以捕获在沟渠系统中运输的沉积物。但是，在使用防洪坝拦截黄土高原的沉积物的400年历史中，黄河中的沉积物并不一定减少，反而有时会增加。因此，我们认为应该考虑在黄土高原上填满沟壑以创造农田。

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  • 来源
    《Environmental Science & Technology》 |2013年第14期|7589-7590|共2页
  • 作者

    Qiang Liu; Yunqiang Wang; Jing Zhang; Yiping Chen;

  • 作者单位

    State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, 710075, China;

    State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, 710075, China;

    State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, 710075, China;

    State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, 710075, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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