干旱区生态环境知识资源中心(Arid): 星载雷达影像对盐渍地微观离子的响应研究

Arid

	星载雷达影像对盐渍地微观离子的响应研究
其他题名	Response of Satellite SAR Images to the Ions of Saline Soils
	何祺胜 1; 曹春香 1; 塔西甫拉提·特依拜 2
ISSN	1000-288X
出版年	2009
卷号	29 期号:5 页码:17-20
中文摘要	以库车绿洲为例,探讨了星载雷达影像对表征土壤盐渍化微观离子的响应情况.选取春、秋两季的Radarsat影像数据,野外采集土壤剖面0-10 cm和0-50cm处土样,室内测定其8大粒子含量(Na~+,K~+,Mg~(2+),Ca~(2+),Cl~-,SO_4~(2-),HCO_3~--,CO_3~(2-))以及pH值、电导率、矿化度、含盐量.采用GPS定位技术,记录每一采样点位的经纬度坐标和雷达影像进行匹配,采用灰色关联分析法分析了Radarsat C波段HH极化对微观粒子在春、秋季节0-10 cm和0-50 cm土壤剖面的响应.结果表明,春季雷达影像对pH值响应强烈,对含盐量响应不稳定,对电导率、矿化度响应一般.就阳离子而言,对Ca~(2+)响应最为显著;就阴离子而言,对HCO_3~-响应最为显著.10月份雷达影像对pH值、电导率响应强烈,对含盐量响应不稳定,对矿化度响应一般.就阳离子而言,无明显规律.就阴离子而言Cl~-响应最为显著,SO_4(2-),HCO_3~-无明显规律.
英文摘要	By taking the Kuqa oasis as a study area, the response of satellite SAR images to the ions of saline soils was analyzed. Two Radarsat images collected in March and October, 2001, were selected, and field sampling to soil profiles of 0-10 and 0-50 cm was made. The values of eight microcosmic ions (Na~+,K~+,Mg~(2+),Ca~(2+),Cl~-,SO_4~(2-),HCO_3~--,CO_3~(2-)), pH value, conductivity, hardness degree, and salt content of saline soils in the typical region were measured according to the measurement point coordinates in field. The values of each point in the remote sensing images were calculated. The gray associate analytic method was used to carry on the relevant arrangement of eight large ions and the values of the remote sensing images. Results indicated that Radar images in March intensely responded to pH value. The response was unstable to salt content and common to conductivity and hardness degree. For positive ion, the response was most remarkable to Ca~(2+) ; and for negative ion, the HCO_3~- response was most remarkable. Radar images in October intensely responded to pH value and conductivity, were unstable to the salt content, and were middle to the hardness degree. For positive ion, there was no evident rule; and for negative ion, the Cl~- response was most remarkable and there was no evident rule in SO_4~(2-) and HCO_3~-.
中文关键词	星载雷达影像 ; 微观离子 ; 灰色关联分析法 ; 响应
英文关键词	satellite SAR image microcosmic ion grey correlation analysis response
语种	中文
国家	中国
收录类别	CSCD
WOS类目	REMOTE SENSING
WOS研究方向	Remote Sensing
CSCD记录号	CSCD:3736355
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/2XILL650/224170
作者单位	1.中国科学院,遥感应用研究所, 遥感科学国家重点实验室, 北京 100101, 中国; 2.新疆大学, 绿洲生态教育部重点实验室, 乌鲁木齐, 新疆 830046, 中国
推荐引用方式 GB/T 7714	何祺胜,曹春香,塔西甫拉提·特依拜. 星载雷达影像对盐渍地微观离子的响应研究[J]. 新疆大学,2009,29(5):17-20.
APA	何祺胜,曹春香,&塔西甫拉提·特依拜.(2009).星载雷达影像对盐渍地微观离子的响应研究.,29(5),17-20.
MLA	何祺胜,et al."星载雷达影像对盐渍地微观离子的响应研究".29.5(2009):17-20.