PJB-2018-924
Saline soils and crop production in coastal zones of Vietnam: features, strategies for amelioration and management
Ho Lam Nguyen and Dang Hoa Tran
Abstract
Vietnam is a humid tropical country in Southeast Asia with total land of 331,000 km2 and a long sea line of more than 3260 km. In recent decades, due to rapid population growth, demand for food and food security has increased. Today, Vietnam is one of the five countries most affected by climate change. Therefore, reclamation of coastal, saline soil has been receiving increasing attention to explore its economic potentials for agriculture. There are three main types of saline soil (i) Mangrove Saline Soil – Gleyicsalisols or Glayi Salic Fluvisols (FLsg), (ii) Strong saline soil – Hapli Salic Fluvisols (FLsh) and (iii) Medium and weak saline soil – Molli Salic Fluvisols (FLsm). The formation of saline soil in coastal Vietnam is mainly due to tidal inundation and salt-effected ground water. There are many production models such as rice cultivation, rice-fish, saline-emerged forest, aquaculture, etc in coastal zones. Rice cultivation is the most popular model. Twice-cropping rice is cultivated in the central and northern coastal area, while triple-cropping rice is just cultivated in the south and south-east region. There are large differences in climate regime, topography, soil conditions, cultivation customs, society and economic conditions between different regions in the long coastline of Vietnam. Hence, management of saline soils should be based on individual characteristics of each region.
To Cite this article:
Nguyen, H.L. and D.H. Tran. 2020. Saline soils and crop production in coastal zones of Vietnam: features, strategies for amelioration and management. Pak. J. Bot., 52(4): DOI: http://dx.doi.org/10.30848/PJB2020-4(18)
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