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	Exploring Spatial Relationship Between Electrical Conductivity and Spectral Salinity Indices in the Mekong Delta
	Tran, Thuong, V; Tran, Duy X.; Pham, Hoa, V; Truong, Tuan, V; Trinh, Hoanh P.; Nguyen, Dung Q.; Nguyen, Binh A.; Nguyen, Hanh C.
通讯作者	Tran, TV
来源期刊	JOURNAL OF ENVIRONMENTAL SCIENCE AND MANAGEMENT
ISSN	0119-1144
出版年	2020
卷号	23 期号:1 页码:39-49
英文摘要	The negative impact of salinization concurrent with drought is a severe problem that creates challenges for agriculture in deltas and coastal lowlands. This study aims to investigate the spatial relationship among the field measured electrical conductivity (EC) and spectral salinity indices derived from Remote sensed data in the Mekong Delta using Geographically Weighted Regression (GWR). A wide range of Landsat 8 Operational Land Images (OLI) products, including single bands, band ratios, vegetation indices (NDVI and EVI), intensity indices (INT), and brightness indices (BI) were employed for computing salinity indices. The Kriging and Co-, kriging interpolation techniques were used to estimate the spatial pattern of the field measured EC. Additionally, the Ordinary Least Square (OLS) regression were employed to characterize the relationship between single bands and EC measurement before applying the GWR for exploring the spatial correlation among the indices. There was a gradually increased of EC value from inland to coastal area. A significant relationship between EC measurement and spectral salinity indices and the highest correlation coefficient with p value less than 0.05 was found in EVI (r(2) = 0.736). This study demonstrated that the GWR is germane to analyse the spatial correlation among the mentioned variables in the study area. Moreover, it also revealed that spectral salinity indice's could be an alternative option for EC measurement in monitoring salt water intrusion at coastal areas.
英文关键词	Geographically Weighted Regression Salinization Salinity Index EC measurement Ben Tre
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000552440800005
WOS关键词	GEOGRAPHICALLY-WEIGHTED REGRESSION ; URBAN HEAT-ISLAND ; AL HASSA OASIS ; SOIL-SALINITY ; ETM PLUS ; TREND ANALYSIS ; IMAGERY ; INTERPOLATION ; MODIS
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/325213
作者单位	[Tran, Thuong, V] Univ Social Sci & Humanities, Sch Geog, HCMC, VNU HCM, Ho Chi Minh City 70000, Vietnam; [Tran, Thuong, V; Truong, Tuan, V] Ho Chi Minh City Univ Educ, Sch Geog, HCMC, Ho Chi Minh City 70000, Vietnam; [Tran, Duy X.] Massey Univ, Sch Agr & Environm, Palmerston North 4442, New Zealand; [Pham, Hoa, V; Nguyen, Dung Q.; Nguyen, Binh A.; Nguyen, Hanh C.] Vietnamese Acad Sci & Technol, Ho Chi Minh City Inst Resources Geog, HCMC, Hanoi 70000, Vietnam; [Pham, Hoa, V] Grad Univ Sci & Technol, Vietnamese Acad Sci & Technol, Hanoi 10000, Vietnam; [Trinh, Hoanh P.] Saigon Univ, Sch Educ Social Sci, HCMC, Ho Chi Minh City 70000, Vietnam
推荐引用方式 GB/T 7714	Tran, Thuong, V,Tran, Duy X.,Pham, Hoa, V,et al. Exploring Spatial Relationship Between Electrical Conductivity and Spectral Salinity Indices in the Mekong Delta[J],2020,23(1):39-49.
APA	Tran, Thuong, V.,Tran, Duy X..,Pham, Hoa, V.,Truong, Tuan, V.,Trinh, Hoanh P..,...&Nguyen, Hanh C..(2020).Exploring Spatial Relationship Between Electrical Conductivity and Spectral Salinity Indices in the Mekong Delta.JOURNAL OF ENVIRONMENTAL SCIENCE AND MANAGEMENT,23(1),39-49.
MLA	Tran, Thuong, V,et al."Exploring Spatial Relationship Between Electrical Conductivity and Spectral Salinity Indices in the Mekong Delta".JOURNAL OF ENVIRONMENTAL SCIENCE AND MANAGEMENT 23.1(2020):39-49.