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中国沙漠 ›› 1984, Vol. 4 ›› Issue (1): 3-15.

• 论文 • 上一篇    下一篇

关于沙漠化地图编制的原则与方法

朱震达   

  1. 中国科学院兰州沙漠研究所
  • 出版日期:1984-03-20 发布日期:1984-03-20

The principles and Methods for Compilling the Map of Desertification of China

Zhu Zhenda   

  1. Institute of Desert Research, Academia Sinica, Lanzhou
  • Online:1984-03-20 Published:1984-03-20

摘要: 沙漠化是当前一个世界性的重要环境问题,其结果造成生物生产量的下降,土地生产潜力的衰退和可利用土地资源的丧失。它影响到全球陆地面积的1/3和占世界14%的人口,而且每年还以5-7万平方公里面积的速度在蔓延,因此沙漠化的防治便成为全球所关心的一个生态问题和环境保护问题。

Abstract: The compilation of the map of desertification possesses an important Practical significance on the controlling of desertified lands. It not only can indicate the status of desertification, but also can reflect the genesis, speed, prediction of the trend of development and the evaluation of the perniciousness of desertification. Only by doing so, can the scientific evidences be provided for the desertification combating. The map of desertification doesn't, indicate a simple aspect, only it daels with an intergrated series of problems as well. Its major contents are as follows: 1. The map of the types of desertified lands: Contains the speed of the development of desertification processes and the topograpic features of deser-tified lands. 2. The map of the human factors to cause the genesis and development of desertification. 3. The map of the perniciousness of desertification. 4. The map of the prediction of desertification and its scheme of renovation and regionalization (invctlloying or classificalion of land types for preventing from invasion of deserlificalion) for controlling. 5. The map of the actual effects on desertification combating. For obtainning the data to compile the map, besides the field investigations and the case study of typical areas; the analysis of aerial photo in different times and the application of computer should be popularly adopated, so that, better effects can be satifyingly gained.