Effect of organic matter on the distribution, extractability and uptake of cadmium in soils

壤土 有机质 土壤水分 化学 干物质 萃取(化学) 土壤有机质 农学 环境化学 土壤科学 环境科学 色谱法 生物 有机化学
作者
Qingliang He,Bal Ram Singh
出处
期刊:The journal of soil science [Wiley]
卷期号:44 (4): 641-650 被引量:148
标识
DOI:10.1111/j.1365-2389.1993.tb02329.x
摘要

SUMMARY Distribution and plant uptake of soil Cd as influenced by organic matter and soil type were investigated in a greenhouse experiment. Three soils (a sand, sandy loam and clay loam) were used. The rates of organic matter in its moist state added were 0,20,40, 80, 160 and 320 g kg ‐1 of the air‐dried soil on mass basis. Ryegrass ( Lolium multörum L. ) was used as a test crop. Soil Cd was analysed by a sequential extraction technique and by extraction with 1 M NH 4 NO 3 and 0.005 M DTPA. The exchangeable fraction of Cd as determined by 1 M MgCl 2 in the sequential extraction procedure increased, whereas the Fe‐Mn oxidebound fraction decreased, with increasing levels of organic matter addition in all three soils. The dry matter yields of ryegrass were not affected by the addition of organic matter, but the Cd concentrations in both cuts of ryegrass decreased with increasing amounts of organic matter added. The plant Cd was highly but negatively correlated to soil CEC. At any level of organic matter addition, the decrease in Cd concentration of ryegrass was in the order: sand > sandy loam > clay loam.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
shylockcai发布了新的文献求助10
2秒前
lyl完成签到,获得积分10
2秒前
Jocd完成签到,获得积分10
2秒前
Akim应助孙二二采纳,获得10
3秒前
优雅的千凝完成签到,获得积分10
3秒前
Time完成签到,获得积分10
4秒前
格拉希尔完成签到 ,获得积分10
5秒前
Yzh完成签到,获得积分10
6秒前
shuke完成签到,获得积分10
7秒前
啊七飞完成签到,获得积分10
7秒前
琦琦国王完成签到,获得积分10
8秒前
务实的绝悟完成签到,获得积分10
11秒前
经纲完成签到 ,获得积分0
11秒前
我说苏卡你说不列完成签到,获得积分10
13秒前
CipherSage应助科研通管家采纳,获得10
15秒前
15秒前
顾矜应助科研通管家采纳,获得10
15秒前
15秒前
劲秉应助科研通管家采纳,获得10
15秒前
sun应助科研通管家采纳,获得20
15秒前
苗条绝义应助科研通管家采纳,获得10
16秒前
隐形曼青应助科研通管家采纳,获得10
16秒前
科研通AI5应助科研通管家采纳,获得10
16秒前
蔡从安完成签到,获得积分20
16秒前
劲秉应助科研通管家采纳,获得10
16秒前
CipherSage应助科研通管家采纳,获得10
16秒前
NexusExplorer应助科研通管家采纳,获得10
16秒前
黑囡应助科研通管家采纳,获得10
16秒前
16秒前
科研通AI5应助科研通管家采纳,获得10
16秒前
科研通AI2S应助科研通管家采纳,获得10
16秒前
5165asd完成签到 ,获得积分10
17秒前
ritata完成签到 ,获得积分10
18秒前
小彤完成签到 ,获得积分10
19秒前
19秒前
ll应助蔡从安采纳,获得10
20秒前
boltos完成签到,获得积分20
21秒前
善学以致用应助橙猫猫采纳,获得10
22秒前
GEZIKU完成签到 ,获得积分10
24秒前
25秒前
高分求助中
Continuum Thermodynamics and Material Modelling 3000
Production Logging: Theoretical and Interpretive Elements 2700
Mechanistic Modeling of Gas-Liquid Two-Phase Flow in Pipes 2500
Structural Load Modelling and Combination for Performance and Safety Evaluation 1000
Conference Record, IAS Annual Meeting 1977 720
電気学会論文誌D(産業応用部門誌), 141 巻, 11 号 510
Typology of Conditional Constructions 500
热门求助领域 (近24小时)
化学 材料科学 生物 医学 工程类 有机化学 生物化学 物理 纳米技术 计算机科学 内科学 化学工程 复合材料 基因 遗传学 物理化学 催化作用 量子力学 光电子学 冶金
热门帖子
关注 科研通微信公众号,转发送积分 3566811
求助须知:如何正确求助?哪些是违规求助? 3139560
关于积分的说明 9431989
捐赠科研通 2840353
什么是DOI,文献DOI怎么找? 1560990
邀请新用户注册赠送积分活动 730141
科研通“疑难数据库(出版商)”最低求助积分说明 717855