干旱区生态环境知识资源中心(Arid): 宁夏中部干旱带压砂砾石矿质元素淋溶规律

Arid

	宁夏中部干旱带压砂砾石矿质元素淋溶规律
其他题名	Leaching regularity of mineral elements of mulched gravel in arid zone of central Ningxia
	王洁; 李王成; 董亚萍; 赵广兴; 徐天渊
来源期刊	东北农业大学学报
ISSN	1005-9369
出版年	2021
卷号	52 期号:2 页码:60-69
中文摘要	压砂地中砾石-土壤-作物三者之间存在相辅相成关系,砾石经历冻融、干湿等风化作用向土壤中淋溶释放一定量元素。为明确压砂砾石元素在干湿冻融循环作用中淋溶规律及释放机理,采用不同盐分浓度溶液对不同粒径开展干湿冻融循环试验。结果表明,随循环次数增加,各元素淋溶量呈先增后减趋势;大量元素与微量元素淋溶量峰值分别出现在60次和40次;盐分浓度增大可促进Ca、K、P、Fe、S元素释放;元素迁移能力与溶解度关系密切。
英文摘要	There was a mutually reinforcing relationship between "gravel, soil and crops" in the gravelmulched land. Under the weathering effects of freezing and thawing, dry and wet, gravel releases a certain amount of elements into the soil. In order to clarify the leaching rule and release mechanism of compacted sand and gravel elements into soil during the dry-wet freeze-thaw cycle, the dry-wet freeze-thaw cycle tests of different particle sizes with different salt concentrations were carried out. The results showed that the leaching amount of each element increased firstly and then decreased with the increase of the number of cycles. The leaching peaks of large amount of elements and trace elements were 60 and 40 times, respectively. The increase of salt concentration could promote the release of Ca, K, P, Fe and S elements. The migration ability of elements had a great relationship with solubility.
中文关键词	压砂砾石 ; 干湿冻融循环 ; 矿质元素 ; 迁移累积系数
英文关键词	mulched gravel dry wet and freeze-thaw cycle mineral element migration accumulation coefficient
类型	Article
语种	中文
收录类别	CSCD
WOS类目	Agriculture
CSCD记录号	CSCD:6930121
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/354232
作者单位	王洁, 宁夏大学土木与水利工程学院, 银川, 宁夏 750021, 中国. 董亚萍, 宁夏大学土木与水利工程学院, 银川, 宁夏 750021, 中国. 赵广兴, 宁夏大学土木与水利工程学院, 银川, 宁夏 750021, 中国. 徐天渊, 宁夏大学土木与水利工程学院, 银川, 宁夏 750021, 中国. 李王成, 宁夏大学土木与水利工程学院;;宁夏节水灌溉与水资源调控工程技术研究中心;;旱区现代农业水资源高效利用教育部工程研究中心, ;;宁夏节水灌溉与水资源调控工程技术研究中心;;旱区现代农业水资源高效利用教育部工程研究中心, 银川;;银川;;银川, ;;;; 750021;;750021;;750021.
推荐引用方式 GB/T 7714	王洁,李王成,董亚萍,等. 宁夏中部干旱带压砂砾石矿质元素淋溶规律[J],2021,52(2):60-69.
APA	王洁,李王成,董亚萍,赵广兴,&徐天渊.(2021).宁夏中部干旱带压砂砾石矿质元素淋溶规律.东北农业大学学报,52(2),60-69.
MLA	王洁,et al."宁夏中部干旱带压砂砾石矿质元素淋溶规律".东北农业大学学报 52.2(2021):60-69.