干旱区生态环境知识资源中心(Arid): 干旱区典型绿洲土壤盐渍化特征分析以渭干河-库车河三角洲为例

Arid

	干旱区典型绿洲土壤盐渍化特征分析以渭干河-库车河三角洲为例
其他题名	Analysis on characteristics of soil salinization in the arid regions：A case study in the delta oasis of Weigan and Kuqa Rivers
	张飞; 丁建丽; 塔西甫拉提·特依拜; 王伯超
ISSN	1004-5759
出版年	2007
卷号	16 期号:4 页码:34-40
中文摘要	渭干河-库车河三角洲绿洲地处世界第二大沙漠塔克拉玛干沙漠的北缘,该绿洲现已成为新疆主要的农业区和棉花基地.但随着经济的快速发展,土地资源开发强度开始加大.而土壤盐渍化是该绿洲可持续发展面临的主要环境问题之一.本研究在野外考察、GPS定点和土壤采样分析的基础上,借助Statistics、Excel等统计软件对盐离子含量、土壤总碱度与离子含量的关系、土壤含盐量与电导率的关系以及盐离子间相关性作了探讨.结果表明,该绿洲土壤pH值的平均值为7.86,属于碱性土壤.土壤含盐量较高,0～10 cm土层中的含盐量最大,平均值达到4.68%.土壤阳离子主要以Na~+、K~+、Ca~~(2+)和Mg~(2+)为主,各阴离子在土体中的含量为Cl~-＞SO_4~(2-)＞HCO_3~-,而CO_3~(2-)在实验中未检测到.在0～10和10～50 cm土层中Na~+与Cl~-均呈极显著正相关,相关系数达到0.99,从而进一步说明该绿洲盐渍化土壤为氯化物盐化土.随着一系列环境问题的日益突出,同盐渍化作斗争已成为本绿洲大农业发展的长期任务之一.
英文摘要	Soil salinization is one of the primary environmental problems, facing sustainable development in the delta oasis of the Weigan and Kuqa Rivers. First, a field survey, GPS location, soil analysis, and soil salinization levels were investigated. The content of salt ion, relation between cation and hardness, relation of the conductance rate and content of ion, relations with content of ion and total alkali, relation between the mineralization and ion in the soil, correlation of the salt ion as well as the relationship between salt amount and agricultural output were analysed with the Statistics, Excel software. Second, factor analysis was used to study the salinized situation of land in the oasis. The determination of the type of land salinized is based on its equivalent ratio of Cl~- to SO_4~(2-) in soil, while the differentiation of salinization degree for salinized soil is chiefly based on the type and content of soil salt. Land in the delta oasis of Weigan and Kuqa Rivers is mostly alkali soil with a pH of 7.86, and is high in salt content. Salts concentrate mostly in the 0-10 cm surface layer, and can reach 4.68%. Cations in the soil are dominated by Na~＋, K~＋, Mg~(2＋) and Ca~(2＋) , whereas anions are in the decreasing order of Cl~-SO4~(2-)〉HCO_3~- in the 0-10, 10-50 cm soil layers. However, CO_3~2- content could not be measured in the soils. The correlation between Na~＋ content and Cl~- content was positive and extremely significant, and that between K~＋ content and HCO_3~- content was also significantly positive. All these findings further suggest that the soils are heavy chloride saline soils.
中文关键词	渭干河-库车河三角洲 ; 盐渍化 ; 土壤特征
英文关键词	the delta oasis of Weigan and Kuqa Rivers soil salinization characteristic of soil
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:2853940
来源机构	新疆大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/220728
作者单位	新疆大学资源与环境科学学院,绿洲生态系统演化模拟与趋势预测实验室, 新疆 830046, 中国
推荐引用方式 GB/T 7714	张飞,丁建丽,塔西甫拉提·特依拜,等. 干旱区典型绿洲土壤盐渍化特征分析以渭干河-库车河三角洲为例[J]. 新疆大学,2007,16(4):34-40.
APA	张飞,丁建丽,塔西甫拉提·特依拜,&王伯超.(2007).干旱区典型绿洲土壤盐渍化特征分析以渭干河-库车河三角洲为例.,16(4),34-40.
MLA	张飞,et al."干旱区典型绿洲土壤盐渍化特征分析以渭干河-库车河三角洲为例".16.4(2007):34-40.