不同土壤腐殖酸对辛硫磷水解的影响

魏沙平; 李红陵; 陈飞霞; 魏世强

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不同土壤腐殖酸对辛硫磷水解的影响

更新时间：2024-11-07

- 不同土壤腐殖酸对辛硫磷水解的影响
- Influences of Humic Acids Isolated from Different Soils on Hydrolysis of Phoxim
- 水土保持学报 2007年21卷第1期页码：76-78
- 作者机构：
- 作者简介：
- 基金信息：
  
  重庆市自然科学基金
- DOI：
  中图分类号： X131.3
- 纸质出版：2007
- 稿件说明：
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魏沙平, 李红陵, 陈飞霞, 等. 不同土壤腐殖酸对辛硫磷水解的影响[J]. 水土保持学报, 2007,21(1):76-78.

WEI Sha-ping, LI Hong-ling, CHEN Fei-xia, et al. Influences of Humic Acids Isolated from Different Soils on Hydrolysis of Phoxim[J]. 2007, 21(1): 76-78.
魏沙平, 李红陵, 陈飞霞, 等. 不同土壤腐殖酸对辛硫磷水解的影响[J]. 水土保持学报, 2007,21(1):76-78. DOI：

WEI Sha-ping, LI Hong-ling, CHEN Fei-xia, et al. Influences of Humic Acids Isolated from Different Soils on Hydrolysis of Phoxim[J]. 2007, 21(1): 76-78. DOI：

摘要

各种试验土壤腐殖酸的紫外吸收曲线相似

但吸收峰强度和E 465/E 665值差异较大

腐殖酸的腐殖化程度由大至小排序为：紫色潮土HA〉黄壤HA〉中性紫色土HA〉酸性紫色土HA

说明它们组成相似

结构和性质有差异。在此基础上

研究它们对辛硫磷水解的影响。结果表明

不同来源土壤腐殖酸均阻碍辛硫磷的水解

但它们的影响程度有明显的差异。腐殖酸溶液浓度越大

辛硫磷水解速率越慢

相同腐殖酸浓度下以腐殖化程度较高的紫色潮土的作用最大。初步说明辛硫磷的水解速率与土壤腐殖酸的浓度和腐殖化程度有关。

Abstract

The compositions of humic acids(HAs) in various soils were common in nature

but the aromatic structures

function groups

molecular weight

and the level of HAs from various soils were significantly different.On these base

the influences of HAs on hydrolysis of phoxim were studied.The results showed that the hydrolysis effect differed for soils that contained different level of HAs. With the concentration of HAs increasing

hydrolysis of phoxim decreased gradually

and the effect by acid purple soil with the lower level of HAs was distinct.Therefore

it may be conferred that the speed of hydrolysis of phoxim was related to the concentration of HAs and the level of HAs.

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