scholarly journals Atlantic‐origin cold saline water intrusion and shoaling of the nutricline in the Pacific Arctic

2021 ◽  
Author(s):  
Jinyoung Jung ◽  
Kyoung‐Ho Cho ◽  
Taewook Park ◽  
Eri Yoshizawa ◽  
Youngju Lee ◽  
...  
Keyword(s):  
Saline Water ◽  
Saline Water Intrusion ◽  
Cold Saline ◽  
Water Intrusion ◽  
The Pacific ◽  
Atlantic Origin

How the saline water intrusion has reshaped the agricultural landscape of the Vietnamese Mekong Delta, a review

2021 ◽  
pp. 148651
Author(s):  
Ho Huu Loc ◽  
Mindy Low ◽  
Edward Park ◽  
Tran Duc Dung ◽  
Sangam Shrestha ◽  
...  
Keyword(s):  
Agricultural Landscape ◽  
Saline Water ◽  
Mekong Delta ◽  
Saline Water Intrusion ◽  
Water Intrusion

Vertical electrical sounding for mapping saline water intrusion in coastal aquifers of Nagapattinam and Karaikal, South India

2017 ◽  
Vol 4 (4) ◽  
pp. 833-841 ◽  
Author(s):  
S. Gopinath ◽  
K. Srinivasamoorthy ◽  
K. Saravanan ◽  
C. S. Suma ◽  
R. Prakash ◽  
...  
Keyword(s):  
Coastal Aquifers ◽  
South India ◽  
Saline Water ◽  
Vertical Electrical Sounding ◽  
Saline Water Intrusion ◽  
Water Intrusion ◽  
Electrical Sounding

Paddy in saline water: Analysing variety-specific effects of saline water intrusion on the technical efficiency of rice production in Vietnam

2019 ◽  
Vol 48 (3) ◽  
pp. 237-245 ◽  
Author(s):  
Thi Huyen Trang Dam ◽  
TS Amjath-Babu ◽  
Peter Zander ◽  
Klaus Müller
Keyword(s):  
Technical Efficiency ◽  
Soil Salinity ◽  
Saline Water ◽  
Rice Variety ◽  
Stochastic Frontier ◽  
Rice Production ◽  
Adaptation Measures ◽  
Saline Water Intrusion ◽  
Water Intrusion ◽  
The Impact

The purpose of our study is to evaluate the impact of saltwater intrusion on the productivity and technical efficiency (TE) of rice farms in Central Vietnam using the stochastic frontier (SF) production function. In contrast to existing studies, this research quantitatively analyses rice variety and season-differentiated impact of soil salinity (as measured by electrical conductivity (EC)) on the TE of rice production. The empirical results indicate that salinity induces significantly varying negative impacts on yield and technical inefficiency of rice farms depending on the salinity class, variety planted and the season. TE begins to sharply decline after reaching salinity class 3 (EC = 4–8 dS/m) and drops to zero under salinity class 4 (EC = 8–16 dS/m) unless salt-tolerant (ST) varieties are planted. A 1% increase in the EC level decreases rice yields by 0.24% in various SF models, while TE shows a cubic relationship with EC, with negative coefficients for linear and quadratic terms. A combination of farm plots consolidation, irrigation, integrated pest management, input optimisation and shifts in varietal selection can potentially offset the yield decline caused by saline intrusion for salinity classes 1 to 4, while adoption of ST varieties seems to be the best option for higher salinity classes over 4. These adaptation measures could also help farmers to avoid maladaptive options such as increased use of pesticide sprays to offset the yield losses due to soil salinity resulting from saline water intrusion. The insights offered by the study is applicable to coastal delta regions cultivating rice in whole of Asia and in other continents.

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