地理学报 ›› 1983, Vol. 38 ›› Issue (4): 358-371.doi: 10.11821/xb198304004

• 论文 • 上一篇    下一篇

四川盆地土壤微量元素化学地理研究

温琰茂, 成延鏊, 杨定国, 金爱珍   

  1. 中国科学院成都地理研究所
  • 出版日期:1983-10-15 发布日期:1983-10-15

THE INVESTIGATION OF THE TRACE-ELEMENT IN THE SOIL OF SICHUAN BASIN

Wen Yan-mao, Cheng Yan-ao, Yang Ding-guo, Jin Ai-zhen   

  1. Chengdu Institute of Geography, Academia Sinica
  • Online:1983-10-15 Published:1983-10-15

摘要: 自1922年以后,相继发现锌、硼、铜、铁、锰等微量元素为植物正常生长发育所必需的微量营养元素,它们多为植物体内酶和辅酶的组成成分。当土壤微量元素供给不足时,农作物常会出现缺乏症状,产量减少,质量降低,严重时可能颗粒无收。

关键词: 四川盆地, 冲积土, 土壤微量元素, 黄壤, 化学地理, 土壤有效, 酸性紫色土, 有效态锌, 有效态硼, 中性紫色土

Abstract: Soil samples analyzed in this article were collected from over 600 sites in 102 counties in Sichuan Basin.The average total Zn, B, Cu, Mn in the soil of Sichuan Basin are 108, 80.7, 33 and 641 ppm respectively. The average available Zn, B, Cu, Fe and Mn contents are 1.45, 0.23, 2.53, 61.1 and 228 ppm respectively. The available Zn, Cu, Fe and Mn contents of the paddy field are usually higher than that of the dry farming fields.The available B content of the soil in Sichuan Basin is low. Most of the soils in the Sichuan Basin are considered to be B deficient soils. It is necessary to apply B fertilizer to the most of the soils in Sichuan Basin.The available Zn contents of the various soil types in Sichuan Basin are quite different. Calcareous purplish soil has the lowest available Zn content and is considered as the Zn de-ficient soil. The available Zn content of Minjiang River alluvial soil, the Fujiang River alluvial soil, neutral purplish soil, acidic purplish soil and yellow soil occuding on old alluvial loess are lower and a part of these soil are considered to be Zn deficient soils. It is necessary to apply Zn fertilizer to these soil.The available Cu, Fe, Mn contents in the soils of Sichuan Basin are richer.