干旱区生态环境知识资源中心(Arid): 新疆典型绿洲土壤电导率和pH值的光谱响应特征

Arid

	新疆典型绿洲土壤电导率和pH值的光谱响应特征
其他题名	Characteristics of Spectral Responding to Soil Electrical Conductivity and pH in the Typical Oasis of Xinjiang
	赵振亮; 塔西甫拉提·特依拜; 丁建丽; 张飞; 雷磊; 买买提·沙吾提
来源期刊	中国沙漠
ISSN	1000-694X
出版年	2013
卷号	33 期号:5 页码:1413-1419
中文摘要	土壤理化性质影响土壤质量,直接决定作物的产量,极易受到灌溉的影响。选择新疆典型绿洲渭干河-库车河三角洲绿洲作为靶区,利用土壤光谱反射率预测土壤的电导率、pH值。首先,对土壤光谱反射率做变换,得到18种形式的反射率;其次,对18种形式的反射率与土壤电导率、pH值进行相关与回归分析,得到预测方程;最后,验证预测方程的精度,并确定最佳方程。结果显示:可以用土壤的光谱反射率预测土壤电导率、pH值,土壤电导率的预测方程为反射率的一阶导数微分形式,均方根误差为0.184;土壤pH值的预测方程为倒数的二阶导数微分形式,均方根误差为0.278。快速预测土壤电导率、pH值可以为土壤质量的评价提供数据基础,有利于正确有效地指导农业生产。
英文摘要	The soil physical and chemical properties, which are extremely influenced by irrigation, have impacts on the quality of soil, and determine the crop yields directly. There is a large drought agricultural region in Xinjiang, so, to study the soil physical and chemical properties is essential. The author selected a delta oasis between the Ugan River and the Kuqa River as objects. The aim of this study was how to use spectral of soil to obtain the properties of soil rapidly and efficiently. Firstly, we transformed the spectral reflectance to 18 kinds of forms of reflectance. Secondly, correlation analysis and multiple regression analysis were done to these kinds of reflectance and the properties of soil. Finally, we used the data to validate the predictive accuracy and determined the best prediction equations of the properties of soil. The results showed that these equations were good. The prediction equation of soil electrical conductivity was the first derivative differential form, the root mean square error was 0.184. The best prediction equation of soil pH was the second derivative differential forms of the reciprocal, the root mean square error was 0.278. It could be a feasible way to use the spectral reflectance to predict soil EC and pH. The study also provides data base for the land quality assessment and sustainable development of the soil and guides the agricultural production correctly and effectively.
中文关键词	新疆 ; 绿洲土壤 ; 电导率 ; pH值 ; 光谱
英文关键词	Xinjiang oasis soil electrical conductivity pH spectral
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:4927349
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/2XILL650/230658
作者单位	新疆大学资源与环境科学学院, 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	赵振亮,塔西甫拉提·特依拜,丁建丽,等. 新疆典型绿洲土壤电导率和pH值的光谱响应特征[J]. 新疆大学,2013,33(5):1413-1419.
APA	赵振亮,塔西甫拉提·特依拜,丁建丽,张飞,雷磊,&买买提·沙吾提.(2013).新疆典型绿洲土壤电导率和pH值的光谱响应特征.中国沙漠,33(5),1413-1419.
MLA	赵振亮,et al."新疆典型绿洲土壤电导率和pH值的光谱响应特征".中国沙漠 33.5(2013):1413-1419.