地理学报

地理学报 ›› 1957, Vol. 23 ›› Issue (1): 69-87.doi: 10.11821/xb195701004

• 论文 • 上一篇    下一篇

黄河中游乾草原和森林草原区的保土草种和造林树种问题

崔友文   

  1. 中国科学院植物研究所
  • 出版日期:1957-01-15 发布日期:1957-01-15
  • 基金资助:

THE PROBLEM ABOUT THE SELECTION OF SOIL-PRFSERVING WOODY AND HERBACEOUS PLANTS OF THE STEPPE AND FOREST-STEPPE ZONES IN THE MIDDLE REACHES OF THE YELLOW RIVER

Tsui You-wen   

  1. Institute of Botany, Academia Sinica
  • Online:1957-01-15 Published:1957-01-15

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被引次数

20

摘要： 黄河中游(青海贵德至河南沁河口)水土流失区域,除内蒙伊盟及旧“宁、绥”冲积平原外,大邮居黄土高原以内。总面积约20余万平方公里。地势约白海拔400—2,500米,由西北向东南逐渐倾斜,气候由干燥而渐趋湿润,黄土颗粒由粗而细。

关键词:

Abstract: Coil erosion, with its inseparahle results of recurinQ flnndg and draughts which have long brought disastem and miseries to the people of North China, has ever been the foremost problem in the fundamental control of tine fellow River. In recent yearn, our government has paid great efforts in trying to carry out, in the shortest time possible, a soil conservation project in the middle reaches of that great river where the soil erosion has been known to be in its worst form.