干旱区生态环境知识资源中心(Arid): 民勤绿洲盐生草生境土壤盐分特征及离子组成

Arid

	民勤绿洲盐生草生境土壤盐分特征及离子组成
其他题名	Characteristics of Soil Salinity and Ion Composition in Habitat Soil of Halogeton Glomeratus in Minqin Oasis
	张鸣 1; 张力 1; 石晓妮 1; 叶鹤琳 1; 李雪 2; 高天鹏 3
来源期刊	水土保持通报
ISSN	1000-288X
出版年	2014
卷号	34 期号:6 页码:231-235
中文摘要	对民勤绿洲盐生草周围不同距离范围内的总体盐分状况、盐分离子组成及离子之间的相关性进行了研究。结果表明,盐生草具有一定的聚盐作用,在其周围形成了一定的"盐岛"效应。在距盐生草0-60 cm范围内,土壤剖面中的土壤盐渍化程度随土层的加深而加重,土壤阴离子主要有Cl~-和SO_4~(2-),阳离子主要有Na~+和Ca~(2+),土壤盐分主要是氯化钠、氯化钙、硫酸钠和硫酸钙,其次是氯化镁和硫酸镁。其中在盐生草周围0-40 cm范围内,垂直剖面0-20 cm土层土壤全盐含量为0.98~1.52 g/kg,属于非盐渍化土壤,20-40 cm土层土壤全盐含量达到了2.25~2.30 g/kg,属于轻度盐渍化土壤,40-60 cm土层土壤全盐含量达到了3.10~3.16 g/kg,属中度盐渍化;在距盐生草60 cm处,垂直剖面0-40 cm土层土壤全盐含量为0.83~1.86 g/kg,属非盐渍化,40-60 cm土层土壤全盐含量达到了2.43 g/kg,属轻度盐渍化。除HCO_3~-外,土壤盐分含量与各盐分离子之间均呈极显著正相关。
英文摘要	Soil total salt,salt ions composition and correlations of different salt ions in habitat of Halogeton glomeratus in Minqin Oasis were studied.Results showed that H.glomeratus can accumulate salts and formed a certain salt island around its habitat.In the horizontal direction 0-60 cm away from H.glomeratus, the soil salinization degree aggravated with soil depth increases in 0-60 cm on the soil profile,among which anions were mainly Cl~-,and SO_4~(2-) and cations were Na~+and Ca~(2+).The main soil salinity were sodium chloride,calcium chloride,sodium sulfate and calcium sulfate,followed by magnesium chloride and magnesium sulfate.In 0-40 cm distance away from plant,the total salinity contents of the 0-20 cm soil layer on the soil profile were 0.98~1.52 g/kg and belonged to non-salinization soil,while that of the 20-40 cm and 40-60 cm soil layers were 2.25~2.30 g/kg and 3.10~3.16 g/kg,which belonged to light salinization soil and medium salinization soil,respectively.Furthermore,in the horizontal direction 60 cm distance away from the H.glomeratus,the total salinity content of 0-40 cm and 40-60 cm soil layers on the soil profile were 0.83~1.86 g/kg and 2.43 g/kg,which belonged to non-salinization and light salinization. There were extremely significantly positive correlations between soil salt content and ions contents except the content of HCO_3~-.
中文关键词	盐生草 ; 民勤绿洲 ; 土壤 ; 盐分离子
英文关键词	Halogeton glomeratus Minqin Oasis soil salt ions
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:5331560
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/231755
作者单位	1.兰州城市学院化学与环境科学学院, 城市环境污染控制高校省级重点实验室, 兰州, 甘肃 730070, 中国; 2.兰州城市学院化学与环境科学学院, 甘肃城市环境污染控制高校省级重点实验室, 兰州, 甘肃 730070, 中国; 3.兰州城市学院化学与环境科学学院, 兰州, 甘肃 730070, 中国
推荐引用方式 GB/T 7714	张鸣,张力,石晓妮,等. 民勤绿洲盐生草生境土壤盐分特征及离子组成[J],2014,34(6):231-235.
APA	张鸣,张力,石晓妮,叶鹤琳,李雪,&高天鹏.(2014).民勤绿洲盐生草生境土壤盐分特征及离子组成.水土保持通报,34(6),231-235.
MLA	张鸣,et al."民勤绿洲盐生草生境土壤盐分特征及离子组成".水土保持通报 34.6(2014):231-235.