| 豫北延津的风沙问题 |
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| 引用本文： | 韩致文,周玉麟,李晓云,董治宝.豫北延津的风沙问题[J].中国沙漠,1995(4). |
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| 作者姓名： | 韩致文 周玉麟 李晓云 董治宝 |
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| 作者单位： | 中国科学院兰州沙漠研究所 |
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| 摘 要： | 半湿润地区的区域性风沙问题是制约经济发展的环境因子之一。通过对豫北延津地区历史上黄河改道泛溢与沙物质沉积过程的分析、风沙问题历史与现状的对比表明，历史时期风沙问题以流沙大规模活动形成各种风蚀风积地貌为特征；而现代风沙问题以沙地在冬春季的片状风蚀和夏秋季的恢复逆转交替为特点，指出本区以季相性为特征的风沙活动及风沙地貌发育规模的有限性。风沙问题的整治关键已不是大规模治理流沙，而是建立有效的防护体系，防止沙质农田土壤风蚀，运用现代技术手段进行沙地高效农业开发。
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| 关 键 词： | 豫北延津，风沙问题，半湿润地区 |
SAND DRIFT PROBLEMS IN YANJIN REGION OF NORTHERN HENAN PROVINCE |
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| Han Zhiwen, Zhou Yulin, Li Xiaolyun, Dong Zhibao.SAND DRIFT PROBLEMS IN YANJIN REGION OF NORTHERN HENAN PROVINCE[J].Journal of Desert Research,1995(4). |
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| Authors: | Han Zhiwen Zhou Yulin Li Xiaolyun Dong Zhibao |
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| Abstract: | Sand drift is one of the environment factors limiting the economic development of theregion. From the analysis of shifting courses of the Yellow River and the sedimentation processes of sandy deposits and the comparative study of sand drift problems in historical periods and the present status one might conclude that the sand drift problem in historical period is characterized by the formation of eolian landforms by lange- scale shifting sand activities, while the present sand drift problem is characterized by the alternating occurrence of sheet wind erosion in winter-spring and landrehabilitation in summer-autumn. The seasonal wind-sand activities limit the development scale ofeolian sand landform in the region. The key to control sand drift problem is not to control shifting sand on a large scale, but instead to establish effective protection system, to control wind erosion on sandyfarmland and to develop high-profit a8ricuture by modern advanced techniques. |
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| Keywords: | Sand drift problem Subhumid area Yanjin region |
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