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生态学杂志 ›› 1983, Vol. ›› Issue (1): 33-36.

• 专论与综述 • 上一篇    下一篇

谈草原开垦

蔡蔚祺   

  1. 中国科学院南京土壤研究所
  • 收稿日期:1981-07-15 出版日期:1983-01-10

ON THE RECLAMATION OF STEPPE

Cai Weiqi   

  1. Institute of Soil Science, Academia Sinica, Nanjing
  • Received:1981-07-15 Online:1983-01-10

关键词: 有机酸, Cd, 黑麦草, 毒性

Abstract: According to the investigation data, the author indicated that if the characteristics of the energy and matter flows of agro-ecosystem were not considered and necessary additional energy and matter were not added, the productivity would be decreased gradually, which would destroy the ecosystem in an all-round way. Therefore, in steppe regions not posscsing grounds for establishing agro-ecosystem, reclamation work should not be proceeded, as for the reclaimed sections, they should be returned to a fine steppe ecosystem as quickly as possible.

Key words: Organic acids, Cadmium, Ryegrass, Toxicity