|本期目录/Table of Contents|

[1]傅成诚,张建.不同剂量尿素、硫酸铵处理对土壤Pb、Zn、Cd形态分布的影响[J].江苏农业科学,2017,45(06):263-269.
 Fu Chengcheng,et al.Influences of different dosages of urea and ammonium sulfate on morphological distribution of Pb,Zn and Cd in soil[J].Jiangsu Agricultural Sciences,2017,45(06):263-269.
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不同剂量尿素、硫酸铵处理对土壤
Pb、Zn、Cd形态分布的影响
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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第45卷
期数:
2017年06期
页码:
263-269
栏目:
资源与环境
出版日期:
2017-04-20

文章信息/Info

Title:
Influences of different dosages of urea and ammonium sulfate on morphological distribution of Pb,Zn and Cd in soil
作者:
傅成诚1 张建2
1.贵州省环境监测中心站,贵州贵阳 550081; 2.贵州大学喀斯特环境与地质灾害防治重点实验室,贵州贵阳 550025
Author(s):
Fu Chengchenget al
关键词:
[XCZ48.tif]土尿素硫酸铵重金属形态pH值
Keywords:
-
分类号:
S156
DOI:
-
文献标志码:
A
摘要:
以[XCZ48.tif]土为研究对象,对不同剂量尿素、硫酸铵施入后土壤重金属Pb、Zn、Cd形态分布随时间的变化规律进行研究。结果表明,Pb污染土壤pH值逐渐降低,28 d后达到稳定,土壤pH值由原土样的7.87降至7.15左右;Zn污染土壤pH值先降低后升高,在28 d时降为最低,pH值为7.22;Cd污染土壤pH值逐渐降低,42 d后达到稳定。交换态Pb、Cd所占比例先降后升,而Zn先升后降,且交换态Pb所占比例与土壤pH值呈显著负相关。碳酸盐结合态Pb、Zn、Cd与土壤pH值呈明显正相关,且Cd呈先降后升的趋势。铁锰氧化物结合态Cd与土壤pH值呈显著负相关,而Pb、Zn与土壤pH值无明显关系,其中Zn、Cd均先降后升。有机结合态Pb、Zn、Cd所占比例在35 d内均与土壤pH值呈正相关,35 d后比例骤然增加,且其变化与土壤pH值无显著关系。残渣态Pb、Zn、Cd均先升后降,且与土壤pH值无明显关系。尿素及硫酸铵施入重金属污染[XCZ48.tif]土后,短期内约28 d对土壤Pb、Zn、Cd起钝化作用,Pb、Zn、Cd最高钝化量分别为各自总量的11.82%、11.44%、50.00%以上。
Abstract:
-

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备注/Memo

备注/Memo:
收稿日期:2016-07-20
基金项目:贵州省优秀科技教育人才省长专项基金(编号:201115)。
作者简介:傅成诚(1985—),男,贵州毕节人,硕士,工程师,主要研究方向为环境化学。E-mail:1295102780@qq.com。
通信作者:张建,硕士研究生,主要研究方向为土壤环境地球化学。E-mail:jzhanggzdxhjkx@163.com。
更新日期/Last Update: 2017-03-20