Climate Change and Land Use Change of Rural Households in The Red River Delta, Vietnam

2013 ◽  
pp. 79-94
Author(s):  
Ngoc Luu Bich
Keyword(s):  
Climate Change ◽  
Land Use ◽  
Agricultural Land ◽  
Rural Households ◽  
River Delta ◽  
Red River ◽  
Red River Delta ◽  
Sea Levels ◽  
Main Production ◽  
Farming Households

Climate change (CC) and its impacts on the socio-economy and the development of communities has become an issue causing very special concern. The rise in global temperatures, in sea levels, extreme weather phenomena, and salinization have occurred more and more and have directly influenced the livelihoods of rural households in the Red River Delta – one of the two regions projected to suffer strongly from climate change in Vietnam. For farming households in this region, the major and traditional livelihoods are based on main production materials as agricultural land, or aquacultural water surface Changes in the land use of rural households in the Red River Delta during recent times was influenced strongly by the Renovation policy in agriculture as well as the process of industrialization and modernization in the country. Climate change over the past 5 years (2005-2011) has started influencing household land use with the concrete manifestations being the reduction of the area cultivated and the changing of the purpose of land use.

Impact of mangrove age on sediment retention and wave dissipation and its links to ecosystem services in the Red River Delta, Vietnam

2020 ◽  
Author(s):  
Chris Hackney ◽  
Rachael Carrie ◽  
Dao Tan Van ◽  
Joshua Ahmed ◽  
Serena Teasdale ◽  
...  
Keyword(s):  
Ecosystem Services ◽  
Agricultural Land ◽  
Storm Surges ◽  
River Delta ◽  
Red River ◽  
Tidal Range ◽  
Mangrove Forests ◽  
Sediment Retention ◽  
Red River Delta ◽  
Sea Levels

<p>Mangroves provide critical ecosystem services that support livelihoods and communities at the coastal margin. They are key natural flood defences to tropical cyclone driven storm surges, they store sediment that is vital for maintaining delta surface elevations in the face of rising sea levels, and transfer key nutrients to agricultural land. Over the past few decades, stressors on mangroves have increased with associated declines in global areal extent, and growing concern about their condition, including for forests that have been restored or afforested. Most remaining mangrove forests comprises a mix of ages and quality. Limited research exists exploring how differing age, structure and health of mangroves impacts sediment retention and aids the dissipation of wave and storm energy, and links these physical processes to the delivery of ecosystem services.</p><p> </p><p>In this study, we demonstrate how mangrove age and health differentially impacts rates of sedimentation, attenuates water level and tidal propagation and aids storm energy dissipation along a section of mangrove forest in Thai Binh province on the Red River Delta in Vietnam. Data were collected over a four month period and highlight spatially variable responses to tides and the increasing influence of the nearby Thai Binh River. We show that sedimentation rates vary from 0.8 m/yr to 0.14 m/yr with increasing distance inland, whilst peak tidal range varies from 1.5 m to 0.5 m with mangrove age.  We demonstrate that these spatial patterns correlate not only to distance inland, but also mangrove age, and the provision of ecosystem services as recorded by household surveys from local communities. This highlights the need for global mangrove databases to account for mangrove quality and health data in order to capture definitively the ecological, hydrodynamic and sedimentological impacts of mangrove forests on coastal and deltaic regions.</p>

scholarly journals Species diversity of Oribatida mite community (Acari: Oribatida) by soil types and habitats in the Red river delta, Viet Nam

2019 ◽  
Vol 2 (6) ◽  
pp. 11-22
Author(s):  
Lai Thu Hien ◽  
Vu Quang Manh
Keyword(s):  
Species Diversity ◽  
Agricultural Land ◽  
Acid Soil ◽  
Alluvial Soil ◽  
River Delta ◽  
Red River ◽  
Soil Types ◽  
Species Number ◽  
Red River Delta ◽  
Close Relationship

Research was undertaken from 2013 to 2017, in eleven provinces and cities, in the Red river delta, Vietnam. Samples were collected from fives types of habitat as follow: natural forest, human – disturbed forest, grassland, cultivated land with perennial plants, agricultural land with annual plants. Samples were also taken from five types of soil: coastal saline - acid soil, acid alluvial soil, neutral alluvial soil, ferritic brownish soil derived from limestone and emaciated greyish soil. In this research, we recorded 283 oribatida species, beloning to 129 genus, 59 families. Among them, 49 species were not defined to species. In comparison with the recordes of Vu Quang Manh (2013) and Ermilov (2015), there are 108 species were for the first time recorded for research region fauna and 65 speciesare new for the Vietnamese fauna. Species diversity of oribatida community in each type of soil and in each habitat are different from each others. The species number in each soil type oscillated from 78 species to 178 species. The species number in each habitat oscillated from 95 species to 127 species. The rate of species which only were recorded in one type of soil or in one habitat is high. The results show that soil types and habitats are in close relationship with oribatida community. It is the scientific base for using oribatida community as a biodiversity for soil quality.  

scholarly journals Landlessness, Economic Activities and Household Income in the Red River Delta, Vietnam

2020 ◽  
Author(s):  
Quang Vu ◽  
Tuyen Quang Tran
Keyword(s):  
Rural Households ◽  
Income Group ◽  
River Delta ◽  
Red River ◽  
Economic Activities ◽  
Red River Delta ◽  
Middle Income ◽  
Self Employment ◽  
Middle Income Group ◽  
Wage Earning

Abstract The main aim of the current study is to investigate the influence of landlessness and landholding on the choice of livelihoods among rural households in the Red River Delta. Among five livelihoods adopted by local households, we find that the highest income derives from formal wage earning, the lowest from agricultural and informal wage-paying livelihoods. The middle income group comprises livelihoods based on formal wage-paying jobs and other sources, and nonfarm self-employment and other income. Notably, the study provides evidence that landlessness or land shortage is not a potential barrier preventing rural households from pursuing gainful livelihoods in the Red River Delta. Specifically, households affected by landlessness or a shortage of land tend to adopt non-farm livelihoods that are more profitable than agricultural livelihoods. The finding suggests that landlessness or shortage of land should not be viewed as an absolutely negative phenomenon in the region.JEL codes: K25; Q15; Q12: Q57

scholarly journals Interacting effects of land-use change, natural hazards and climate change on rice agriculture in Vietnam

2020 ◽  
Author(s):  
Kai Wan Yuen ◽  
Tang Thi Hanh ◽  
Vu Duong Quynh ◽  
Adam D. Switzer ◽  
Paul Teng ◽  
...  
Keyword(s):  
Climate Change ◽  
Land Use ◽  
Food Security ◽  
Natural Hazards ◽  
Systems Thinking ◽  
Meta Analysis ◽  
Rice Production ◽  
River Delta ◽  
Red River Delta ◽  
Systems Thinking Approach

Abstract. Vietnam is a major rice producer and much of the rice grown is concentrated in the Red River Delta (RRD) and the Mekong River Delta (MRD). While the two mega-deltas are highly productive regions, they are vulnerable to natural hazards and the effects of human related environmental change. The natural hazards that affect Vietnam include typhoons, floods and droughts while the major anthropogenic developments happening in Vietnam include dike development, sand mining, dam construction and groundwater extraction. Outbreaks of pests and diseases are also common. Although there is a substantial volume of work investigating the environmental impacts of these natural hazards and anthropogenic interventions, few studies have examined the implications of these on food security. To show that the processes and issues affecting food security are reinforcing and interdependent, we used a systems thinking approach to represent the ways in which natural hazards, anthropogenic land-use and climate change affect rice production in the two mega-deltas. A key finding is that anthropogenic developments meant to improve agricultural productivity or increase economic development create many unwanted environmental consequences such as an increase in flooding, saltwater intrusion and land subsidence which in turn create other negative feedbacks on rice production and quality. In addition, natural hazards may amplify the problems created by human activities. In future, besides creating new environmental threats, climate change may exacerbate the effects of natural hazards by increasing the frequency and severity of natural disasters. Our meta-analysis highlights the ways in which a systems thinking approach can yield more nuanced perspectives to tackle complex and interrelated environmental challenges. Given that mega-deltas worldwide are globally significant for food production and are highly stressed and degraded landscapes, a systems thinking approach can be applied to provide a holistic and contextualized overview of the threats faced in each location.

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