干旱区生态环境知识资源中心(Arid): 开都河流域下游绿洲土壤盐渍化时空变化及其成因分析

Arid

	开都河流域下游绿洲土壤盐渍化时空变化及其成因分析
其他题名	Analysis of tempo - spatial dynamic change and the cause of soil salinization in the oasis of the lower reaches of Kaidu River Basin
	赖宁; 李新国; 阿斯耶姆·图尔迪; 麦麦提吐尔逊·艾则孜
来源期刊	干旱区资源与环境
ISSN	1003-7578
出版年	2013
卷号	27 期号:12 页码:66-73
中文摘要	以开都河流域下游绿洲为研究区,以1973年MSS、1990年TM、2010年ETM+影像和统计资料为基本数据源,运用RS与GIS技术对研究区土壤盐渍化的类型、程度、面积与空间分布信息进行提取,利用土地转移矩阵和盐渍化动态度模型对近40a研究区土壤盐渍化时空动态变化及其成因进行分析。研究结果表明:1)1973年土壤盐渍化面积为1293.14km2,2010年为659.68km2,减少633.46km2;其中重度盐渍化面积减少150.69km2,中度盐渍化面积减少370.56km2,轻度盐渍化面积减少112.21km2,均呈现下降趋势。2)1973~2010年,重度、中度、轻度土壤盐渍化向绿洲边缘移动;重度、中度、轻度盐渍化地之间相互转化,荒地是三类盐渍化地转入面积的主要部分。3)大陆荒漠性气候、成土母质富含硫酸盐和氯化物、低洼的地形、地下水位浅等自然因素是该区域土壤盐渍化发生演变的内因;大规模的绿洲土地开发利用和不合理的农业灌溉模式等人类经济活动是其发生演变的外因。
英文摘要	Using MSS image of 1973,TM image of 1990,ETM + image of 2010 and the statistical data as the data sources,the RS technology was used to extract the information about the types,size and distribution of soil salinization,and the land transfer matrix and salinization dynamic model on Rt were used to analyze the spatial and temporal changes of salt - affected land in the oasis of the lower reaches of Kaidu River Basin in recent 40 years.The results showed that: 1) The area of soil salinization of the lower reaches of Kaidu River Basin had decreased in recent 40 years; that in 1973 was 1293.14km2,in 2010 was 659.68km2,decreased by 633.46km2 ; the area of the severely salinized soil in 1973 was 500.71km2,in 2010 was 350.02 km2,decreased by 150.69km2 ; the area of moderate salinization in 1973 was 458.43km2,in 2010 ’s 87.87km2,decreased by 370.56km2 ; the area of mild salinization in1973 was 334.00 km2,in 2010 was 221.79 km2,discreased by 112.21 km2.2) Severely,moderate,mild salinized soil of study area which had been far away from the oasis were moving to the margin of oasis from 1973 to 2010; severely,moderate,mild salinized soil had transformed each other, the wasteland had transformed to the three type salinized soil obviously,as the main transformed parts to salinization soil.3) Dry regional climate,rich salt in soil parent material,shallow level of underground water,around closed and intermediate low - lying basin,large - scale oasis land development and unreasonable agricultural water using were the causes for salinization soil evolution in the oasis of the lower reaches of Kaidu River Basin.
中文关键词	土壤盐渍化 ; 时空动态变化 ; 成因 ; 开都河流域下游 ; 绿洲
英文关键词	soil salinization spatial and temporal dynamical changes factors the lower reaches of Kaidu River Basin oasis
语种	中文
国家	中国
收录类别	CSCD
WOS类目	REMOTE SENSING ; AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Remote Sensing ; Agriculture
CSCD记录号	CSCD:4961774
来源机构	新疆师范大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/229673
作者单位	新疆师范大学地理科学与旅游学院, 新疆干旱区湖泊环境与资源重点实验室, 乌鲁木齐, 新疆 830054, 中国
推荐引用方式 GB/T 7714	赖宁,李新国,阿斯耶姆·图尔迪,等. 开都河流域下游绿洲土壤盐渍化时空变化及其成因分析[J]. 新疆师范大学,2013,27(12):66-73.
APA	赖宁,李新国,阿斯耶姆·图尔迪,&麦麦提吐尔逊·艾则孜.(2013).开都河流域下游绿洲土壤盐渍化时空变化及其成因分析.干旱区资源与环境,27(12),66-73.
MLA	赖宁,et al."开都河流域下游绿洲土壤盐渍化时空变化及其成因分析".干旱区资源与环境 27.12(2013):66-73.