| 江苏省滨海盐土向潮土演化过程中水溶性氟含量变化原因的探讨 |
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| 引用本文： | 潘宏,陈邦本,方明.江苏省滨海盐土向潮土演化过程中水溶性氟含量变化原因的探讨[J].土壤学报,1993,30(4):416-422. |
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| 作者姓名： | 潘宏 陈邦本 方明 |
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| 作者单位： | 南京农业大学海涂研究室 210014;南京农业大学海涂研究室 210014;南京农业大学海涂研究室 210014 |
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| 摘 要： | 江苏滨海盐土向潮土演化过程中，水溶性Ｆ＾－含量经历了由少变多，再由多变少的过程。水溶性氟含量变化受控于水溶性Ｃａ＾＋＋变化（Ｆ＾－＝ａ＋ｂＣａ＾＋＋－１／２），同时，由于土壤胶体和溶液中ＯＨ＾－与Ｆ＾－含量可能ＣａＦ２的活度积起控制作用，而ｐＨ值的变化起叠加作用。江苏沿海土壤中影响水溶性氟含量的矿物主要是ＣａＦ２。
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| 关 键 词： | 滨海盐土 脱盐过程 水溶性氟 含量 |
DISCUSSION ON MECHANISM OF VARIATIONS IN CONTENT OF WATER-SOLUBLE FLUORINE DURING DESALINIZATION OF COASTAL SALINE SOILS OF JIANGSU PROVINCE |
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| Pan Hong,Chen Bangben and Fang Ming.DISCUSSION ON MECHANISM OF VARIATIONS IN CONTENT OF WATER-SOLUBLE FLUORINE DURING DESALINIZATION OF COASTAL SALINE SOILS OF JIANGSU PROVINCE[J].Acta Pedologica Sinica,1993,30(4):416-422. |
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| Authors: | Pan Hong Chen Bangben and Fang Ming |
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| Institution: | Research Institute of Seabeach Resource, Nanjing Agricultural University, 210014;Research Institute of Seabeach Resource, Nanjing Agricultural University, 210014;Research Institute of Seabeach Resource, Nanjing Agricultural University, 210014 |
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| Abstract: | Water-soluble F- in coastal saline soil of Jiangsu Province changed firstly from low to high content, then from high to low during desalinization process of the soil. Water-soluble F- content was controlled by water-soluble Ca++ content(F-=a+bCa++-1/2)..Because of the mutual exchange reaction of OH- and F--ion within soil colloid and solution, the water-soluble F- content increased and decreased reciprocally with the water-soluble Ca++ content but simultaneously with the pH value. The mainfactor controlling the content of soluble fluorine might be the activity product of CaF2. CaF2 is the main solid phase controlling water-soluble F- in the saline soils along the sea coast of Jiangsu. |
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| Keywords: | Coastal saline soils Desalinization Water-soluble F- Water soluble Ca++ pH value |
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