地理科学 ›› 2003, Vol. 23 ›› Issue (2): 200-207.doi: 10.13249/j.cnki.sgs.2003.02.200

• 论文 • 上一篇    下一篇

海南岛土壤中铝钙的地球化学特征及其对生态环境的影响

龚子同, 张甘霖, 赵文君, 陈志诚, 欧阳洮, 赵玉国   

  1. 中国科学院南京土壤研究所, 江苏 南京 210008
  • 出版日期:2003-03-20 发布日期:2003-03-20
  • 基金资助:
    国家自然科学基金项目(49831004)和国家科委重点科技攻关项目(96-920-02-02)。

Geochemical Characteristics of Aluminum and Calcium of Soils and Their Impact on Ecological Environment in Hainan Island

GONG Zi-Tong, ZHANG Gan-Lin, ZHAO Wen-Jun, CHEN Zhi-Cheng, OUYANG Tao, ZHAO Yu-Guo   

  1. Institute of Soil Science, the Chinese Academy of Sciences, Nanjing, Jiangsu 210008
  • Online:2003-03-20 Published:2003-03-20

摘要: 对海南岛土壤中铝、钙的含量、形态及其在成土过程中的地球化学特征进行讨论,并就这两种元素对作物生长和人类健康影响进行初步探讨。

Abstract: In the paper the contents and forms of aluminum and calcium of soils, as well as their geochemical characteristics in soil-forming processes, in Hainan Island are discussed. Meanwhile, the impacts of both elements on crop growth and human health are also primarily researched. The soils in Hainan Island have the pedogeochemical characteristics that the soils are highly abundant in aluminum and highly deficient in calcium. The total amount of aluminum (Al2O3) may be as high as 300 g/kg, but that of calcium is very low or even trace. In the same way, the content of exchangeable aluminum of the soils is high and that of exchangeable calcium is very low. Now, there are about 50 percent area of the soils where plant growth may be impact due to soil aluminum toxicity. The intake of calcium for local people, reflecting on the food, is less than that for the people of whole country as well as the neighboring province. Consequently, the suggestion is recommended that, besides improving soils, cultivating more legume crops, increasing soybean production and developing dairy farm are necessary to build up the people's health.

中图分类号: 

  • P153