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应用生态学报 ›› 1999, Vol. 10 ›› Issue (3): 317-320.

• 研究论文 • 上一篇    下一篇

酸性硫酸盐土水改旱后土壤化学性状的变异初报

李华兴, 张新明, 卢维盛, 刘远金, 李长洪   

  1. 华南农业大学资源环境学院, 广州 510642
  • 收稿日期:1998-12-08 修回日期:1999-02-03 出版日期:1999-05-25 发布日期:1999-05-25
  • 通讯作者: 李华兴,男,49岁,教授,硕士,研究方向为土壤资源管理与持续农业.已发表论文20篇,先后获得省(部)科技成果奖4项,现主持3项国家、省科技攻关项目.E-mail:huaxli@scau.edu.cn E-mail:huaxli@scau.edu.cn
  • 基金资助:

    广东省“九五”科技攻关项目(9622035-01)和国家“九五”科技攻关资助项目(96-004-03-10).

Changes of soil chemical properties after transferring acid sulfate paddy soil to upland soil

Li Huaxing, Zhang Xinming, Lu Weisheng, Liu Yuanjin, Li Changhong   

  1. South China Agricultural University, Guangzhou 510642
  • Received:1998-12-08 Revised:1999-02-03 Online:1999-05-25 Published:1999-05-25

摘要: 探讨了酸性硫酸盐水稻土改为旱作后土壤化学性状的变异以及比较不同利用方式之间的经济效益。结果表明,酸性硫酸盐水稻土改种甜玉米和蔬菜后,土壤化学性状发生显着变化。耕层土壤酸度、水溶性硫酸根含量、土壤活性铝和活性铁含量均显着降低。经济效益得到显着提高。建议对水改旱后的环境效应进行深入研究以及进行定位观测,以便合理利用这一特殊的土壤资源.

关键词: 酸性硫酸盐土, 化学性状, 水稻, 甜玉米, 蔬菜, 人工林, 氮储量, 林龄, 碳储量

Abstract: This paper dealt with the changes of the soil chemical properties after transferring acid sulfate paddy soil to upland soil, and compared the economic profits among different land use patterns. The results show that transferring planting rice to planting sweet corns and vegetables significantly reduced soil acidity and the contents of hydrolytic sulfate, active aluminum and active iron in arable layer, and greatly increased economic profits. It was suggested that the environmental effects caused by transferring acid sulfate paddy soil to upland soil should be further studied and monitored in situ, so that, this special soil resource could be more rationally used.

Key words: Acid sulfate soil, Chemical properties, Rice, Sweet corn, Vegetables, nitrogen storage, carbon storage, forest age, plantation forest