干旱区生态环境知识资源中心(Arid): 长期不同施肥下我国3种典型土壤重金属的累积特征

Arid

	长期不同施肥下我国3种典型土壤重金属的累积特征
其他题名	Evolution of Heavy Metal Contents of Three Soils Under Long-term Fertilizations
	徐明岗; 武海雯; 刘景
来源期刊	农业环境科学学报
ISSN	1672-2043
出版年	2010
卷号	29 期号:12 页码:2319-2324
中文摘要	采用现场采样及室内分析测试方法,观测了1989年开始的红壤,黑土和灰漠土17a不同施肥(不施肥,施用化肥,化肥与有机肥配施和单施有机肥)下重金属元素Cu,Cd,Zn,Pb和Cr含量随时间序列的变化,阐明长期施肥下3种土壤中重金属元素的累积变化过程和富集特征.结果表明,灰漠土各处理的重金属含量在17a间持平;红壤和黑土中Zn,Pb和Cr含量17a间没有显著变化,各个处理间也没有显著差异,但施用有机肥处理的Cu和Cd含量则显著增加,其快速增加期起始于试验开始的5~6a后.其中红壤Cu含量在1996年之后的3a中由41mg·kg-1左右快速增加到64mg·kg-1左右,之后在高浓度持平;Cd含量则在最近的10a中从0.20~0.30mg·kg-1直线上升到1.30~1.50mg·kg-1.黑土Cd在6a中快速增加了2.4倍和1.4倍,2000年后在高浓度基本持平.红壤的Cu和Cd,黑土的Zn和Cd之间存在极显著正相关关系,表明其可能来源一致.长期施用有机肥是红壤和黑土中重金属显著富集的重要原因,有机肥的质量对土壤重金属的累积起重要作用
英文摘要	Contents of Cu,Zn,Pb,Cr and Cd were periodically measured during 19892006 under different fertilizations in the Red Soil,Black Soil and Grey Desert Soil. In general,all heavy metals showed little change during 17 years of experiment for all the treatments in the Grey Desert Soil. For the Red Soil and Black Soil,Zn,Pb and Cr contents showed little change under all the treatments,whereas Cu and Cd contents revealed a significant increase under manure treatments. For Red Soil,Cu content increased from 41 mg·kg-1 to 64 mg·kg-1 after 6 years of manure treatments and was 5565 mg·kg-1 during the last 7 years under NKPM and M treatments,but 2747 mg·kg-1 in the other treatments. Cd contents linearly increased from about 0.25 mg·kg-1 to the maximum 1.48 mg·kg-1 in the later 10 years under NPKM and M treatments,while the other treatments kept in 0.10.2 mg·kg-1. In Black Soil,Cd content was 0.40.6 mg·kg-1 under NPKM and 1.5MPKM treatments during the last 6 years,much higher than the other treatments of 0.070.27 mg·kg-1. During 17 years different fertilizations,manure could be the most important sources of heavy metals in Red Soil and Black Soil. The quality of manure conduced to the enrichment of heavy metals in soil
中文关键词	长期施肥 ; 重金属累积特征 ; 红壤 ; 黑土 ; 灰漠土
英文关键词	long-term fertilization character of heavy metal enrichment Red Soil Black Soil Grey Desert Soil
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ENVIRONMENTAL SCIENCES
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:4086306
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/225423
作者单位	中国农业科学院农业资源与农业区划研究所, 农业部作物营养与施肥重点开放实验室, 北京 100081, 中国
推荐引用方式 GB/T 7714	徐明岗,武海雯,刘景. 长期不同施肥下我国3种典型土壤重金属的累积特征[J],2010,29(12):2319-2324.
APA	徐明岗,武海雯,&刘景.(2010).长期不同施肥下我国3种典型土壤重金属的累积特征.农业环境科学学报,29(12),2319-2324.
MLA	徐明岗,et al."长期不同施肥下我国3种典型土壤重金属的累积特征".农业环境科学学报 29.12(2010):2319-2324.