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生态学杂志 ›› 1992, Vol. ›› Issue (1): 57-59.

• 研究报告 • 上一篇    下一篇

酸性淋溶对赤红壤溶液Ca/Al比的影响

刘洪杰   

  1. 华南师范大学地理系, 广州 510631
  • 收稿日期:1990-06-15 修回日期:1990-09-17 出版日期:1992-02-10

Influence of Acidic Leaching on Ca/Al Ratio in Solution of Lateritic Red Earth

Liu Hongjie   

  1. Department of Geography, South China Normal University, Guangzhou 510631
  • Received:1990-06-15 Revised:1990-09-17 Online:1992-02-10

关键词: 开发区, 规划环评, 土地资源承载力, 生态敏感性, 生态适宜性, 生态用地

Abstract: In the leaching process, the concentration or caicium declines, but no remarkable difference has been found with different acid rains. As for the concentration of alumunium, there is no distinct change after leaching with acid rain of pH>3.0, but it's markedly increased after acidic leaching of pH2.5 Consequently, the declination of Ca/Al ratio is the result of leaching process when the pH of acid rain is atove 3.0. Only when pH<2.5, the leaching of acid rain starts to reduce this ratio. The declination speed becomes slower with the intensification of leaching.

Key words: development zone, planning environment impact assessment, land carrying capacity, eco-sensibility, eco-suitability, ecological land use