干旱区生态环境知识资源中心(Arid): 干旱区高盐度潜水蒸发条件下土壤积盐规律分析

Arid

	干旱区高盐度潜水蒸发条件下土壤积盐规律分析
其他题名	Analysis on law of soil salt accumulation under condition of high salinity phreatic water evaporation in arid areas
	贾瑞亮 1; 周金龙 1; 周殷竹 2; 高业新 3; 李阳 1; 王新中 4
来源期刊	水利学报
ISSN	0559-9350
出版年	2016
卷号	47 期号:2 页码:150-157
中文摘要	为分析干旱区高盐度潜水蒸发条件下土壤中盐分积累规律,利用室外土柱模拟试验开展了不同TDS(Total Dissolved Solids)(30和100 g/L)、不同包气带质地(细砂和粉质黏土)和不同潜水埋深(0.5、1.0和3.0 m)的高盐度潜水蒸发条件下分层土壤盐分的监测工作。通过对各个土柱不同深度7次取样得到的土壤平均含盐量数据分析表明:高盐度潜水蒸发条件下,潜水埋深越浅,土壤剖面上相同深度范围内的含盐量就越大;在其他条件一定时,包气带质地为粉质黏土的土壤剖面含盐量大于包气带质地为细砂的土壤剖面含盐量;由于黏性土的膜效应和土壤中积盐对土壤孔隙的填充作用,导致粉质黏土土柱上层的土壤含盐量表现为潜水TDS为30 g/L的大于潜水TDS为100 g/L的,在土柱下层的土壤含盐量表现为潜水TDS为30 g/L的小于潜水TDS为100 g/L的;由于TDS升高对毛细水的重力和土体结构的改变,随着潜水TDS的升高,粉质黏土土壤剖面上出现局部积盐深度下移的趋势。
英文摘要	Column experiments were carried out to investigate effects of total dissolved solids (TDS) (30g/L and 100g/L),vadose zone lithology (fine sand and silt clay) and depth of groundwater table (0.5m,1.0m and 3.0m) on distribution of soil salt accumulation under condition of high salinity phreatic water evaporation in arid areas. Samples were taken seven times from different depths of column for soil salt analysis. The results indicate that under condition of high salinity phreatic water evaporation, the less depth the groundwater table is, the larger soil salinity at the same depth will be. Salinity in soil profile with vadose zone lithology of silt clay is higher than that of fine sand when other conditions are fixed. In addition, soil salinity of phreatic water with TDS of 30 g/L is higher than that with TDS of 100 g/L in the upper layer of silt clay column due to the membrane effect of tenacious soil and filling effect of crystal salt in soil pore, and lower in the lower part of the column. Depth of salt accumulation in silt clay profile tends to shift down with the increase of phreatic water TDS due to the change of capillary water gravity and soil structure as a result of higher TDS.
中文关键词	干旱区 ; 高盐度潜水 ; 潜水蒸发 ; 土壤积盐
英文关键词	arid area high salinity phreatic water phreatic water evaporation soil salt accumulation
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:5650583
来源机构	新疆农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/234915
作者单位	1.新疆农业大学水利与土木工程学院, 乌鲁木齐, 新疆 830052, 中国; 2.中国地质大学(北京)水资源与环境学院, 北京 100083, 中国; 3.中国地质科学院水文地质环境地质研究所, 石家庄, 河北 050061, 中国; 4.新疆昌吉州地质环境监测站, 昌吉, 新疆 831100, 中国
推荐引用方式 GB/T 7714	贾瑞亮,周金龙,周殷竹,等. 干旱区高盐度潜水蒸发条件下土壤积盐规律分析[J]. 新疆农业大学,2016,47(2):150-157.
APA	贾瑞亮,周金龙,周殷竹,高业新,李阳,&王新中.(2016).干旱区高盐度潜水蒸发条件下土壤积盐规律分析.水利学报,47(2),150-157.
MLA	贾瑞亮,et al."干旱区高盐度潜水蒸发条件下土壤积盐规律分析".水利学报 47.2(2016):150-157.