干旱区生态环境知识资源中心(Arid): CWT-Based Estimation of Soil Organic Matter Content in Arid Area Under Different Human Disturbance Degrees

Arid

DOI	10.3788/LOP56.051101
	CWT-Based Estimation of Soil Organic Matter Content in Arid Area Under Different Human Disturbance Degrees
	Ye Hongyun; Xiong Heigang; Zhang Fang; Wang Ning; Ma Lifang
通讯作者	Xiong, HG
来源期刊	LASER & OPTOELECTRONICS PROGRESS
ISSN	1006-4125
出版年	2019
卷号	56 期号:5
英文摘要	In order to explore the influence of human disturbance activities on soil organic matter content and improve the estimation accuracy of soil organic matter in arid area. The soil in Fukang City, northern Xinjiang, is studied. The hyperspectral curves of 90 sampling points arc successively transformed by continuous wavelet transform (CWT) and compared with R and lg(1/R), two common spectral transformation methods. The results show that the spatial variability of soil organic matter is enhanced with the increase of human disturbance degree. Moreover, in the common spectral transformation methods, R-2 of partial least squares models established by the soil organic matter institute and R' in zone I, zone II and zone III are both higher than those by R and lg(1/R). The precision of the model established after CWT is very high. Compared with R-2 of the model established by R, R-2 of the measured value and the predicted value are 0. 717, 0. 689, 0. 630, increased by 0. 382, 0. 4, 0. 389, respectively. In addition, the relative percent deviation correspondingly reach 2.150, 2.090, 2.013, indicating that CWT can well predict the soil organic matter contents. The usage of CWT does not greatly reduce the model accuracy with the increase of human disturbance degree and is more suitable for the prediction of organic matter content in arid regions.
英文关键词	imaging systems soil organic matter field hyperspectral continuous wavelet transformation human disturbance activity
类型	Article
语种	中文
收录类别	ESCI
WOS记录号	WOS:000549840200014
WOS类目	Engineering, Electrical & Electronic ; Optics
WOS研究方向	Engineering ; Optics
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/2XILL650/334154
作者单位	[Ye Hongyun; Zhang Fang; Wang Ning; Ma Lifang] Xinjiang Univ, Coll Resources & Environm Sci, Key Lab Oasis Ecol, Minist Educ, Urumqi 830046, Xinjiang, Peoples R China; [Xiong Heigang] Beijing Union Univ, Coll Appl Arts & Sci, Urban Dept, Beijing 100083, Peoples R China
推荐引用方式 GB/T 7714	Ye Hongyun,Xiong Heigang,Zhang Fang,et al. CWT-Based Estimation of Soil Organic Matter Content in Arid Area Under Different Human Disturbance Degrees[J]. 新疆大学,2019,56(5).
APA	Ye Hongyun,Xiong Heigang,Zhang Fang,Wang Ning,&Ma Lifang.(2019).CWT-Based Estimation of Soil Organic Matter Content in Arid Area Under Different Human Disturbance Degrees.LASER & OPTOELECTRONICS PROGRESS,56(5).
MLA	Ye Hongyun,et al."CWT-Based Estimation of Soil Organic Matter Content in Arid Area Under Different Human Disturbance Degrees".LASER & OPTOELECTRONICS PROGRESS 56.5(2019).