干旱区生态环境知识资源中心(Arid): Modeling and Mapping of Soil Salinity and its Impact on Paddy Lands in Jaffna Peninsula, Sri Lanka

Arid

DOI	10.3390/su12208317
	Modeling and Mapping of Soil Salinity and its Impact on Paddy Lands in Jaffna Peninsula, Sri Lanka
	Gopalakrishnan, Tharani; Kumar, Lalit
通讯作者	Gopalakrishnan, T
来源期刊	SUSTAINABILITY
EISSN	2071-1050
出版年	2020
卷号	12 期号:20
英文摘要	Soil salinity is a major threat to land productivity, water resources and agriculture in coastal areas and arid and semi-arid regions of the world. This has a significantly negative effect on the land and causes desertification. Monitoring salt accumulation in the soil is crucial for the prevention of land degradation in such environments. This study attempted to estimate and map soil salinity in Jaffna Peninsula, a semi-arid region of Sri Lanka. A Partial Least Squares Regression (PLSR) model was constructed using Sentinel 2A satellite imagery and field-measured soil electrical conductivity (EC) values. The results showed that satisfactory prediction of the soil salinity could be made based on the PLSR model coupled with Sentinel 2A satellite imagery (R-2 = 0.69, RMSE = 0.4830). Overall, 32.8% of the land and 45% of paddy lands in Jaffna Peninsula are affected by salt. The findings of this study indicate that PLSR is suitable for the soil salinity mapping, especially in semi-arid regions like Jaffna Peninsula. The results underpin the importance of building adaptive capacity and implementing suitable preventive strategies for sustainable land and agricultural management.
英文关键词	soil salinity Jaffna Peninsula Sentinel 2 remote sensing salinity indices soil mapping paddy lands sustainability
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E ; SSCI
WOS记录号	WOS:000583085300001
WOS关键词	REFLECTANCE SPECTRA ; SEAWATER INTRUSION ; SENTINEL-2 MSI ; METHODS PLSR ; 8 OLI ; COASTAL ; PREDICTION ; REGION
WOS类目	Green & Sustainable Science & Technology ; Environmental Sciences ; Environmental Studies
WOS研究方向	Science & Technology - Other Topics ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/327175
作者单位	[Gopalakrishnan, Tharani; Kumar, Lalit] Univ New England, Sch Environm & Rural Sci, Armidale, NSW 2351, Australia
推荐引用方式 GB/T 7714	Gopalakrishnan, Tharani,Kumar, Lalit. Modeling and Mapping of Soil Salinity and its Impact on Paddy Lands in Jaffna Peninsula, Sri Lanka[J],2020,12(20).
APA	Gopalakrishnan, Tharani,&Kumar, Lalit.(2020).Modeling and Mapping of Soil Salinity and its Impact on Paddy Lands in Jaffna Peninsula, Sri Lanka.SUSTAINABILITY,12(20).
MLA	Gopalakrishnan, Tharani,et al."Modeling and Mapping of Soil Salinity and its Impact on Paddy Lands in Jaffna Peninsula, Sri Lanka".SUSTAINABILITY 12.20(2020).