Salinity impacts on agro-biodiversity in three coastal, rural villages of Bangladesh

Rahman, Mohammad Ataur; Lund, T.; Bryceson, Ian

doi:10.1016/j.ocecoaman.2011.03.003

Cited by 87 publications

(56 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…At the coast, river discharge maintains the pressure to counter sea water intrusion. Thus, the rising levels of ground water level possibly reflect the reduction in water availability from upstream discharge and the increasing risk of sea water contamination (Rahman et al 2011;Bahar and Reza 2010).…”

Section: Social and Biophysical Driversmentioning

confidence: 99%

Recent changes in ecosystem services and human well-being in the Bangladesh coastal zone

et al. 2015

View full text Add to dashboard Cite

This study takes an historical approach in order to establish how the form and function of the social-ecological system that represents the Bangladesh south-western coastal zone has changed over recent decades. Time series data for a range of ecosystem services and drivers are analysed to define the range of trends, the presence of change points, slow and fast variables and the significant drivers of change. Since the 1980s, increasing gross domestic product and per capita income mirror rising levels of food and inland fish production. As a result, the size of population below the poverty line has reduced by *17 %. In contrast, non-food ecosystem services such as water availability, water quality and land stability have deteriorated. Conversion of rice fields to shrimp farms is almost certainly a factor in increasing soil and surface water salinity. Most of the services experienced statistically significant change points between 1975 and 1980, and among the services, water availability, shrimp farming and maintenance of biodiversity appear to have passed tipping points. An environmental Kuznets curve analysis suggests that the point at which growing economic wealth feeds back into effective environmental protection has not yet been reached for water resources. Trends in indicators of ecosystem services and human well-being point to widespread non-stationary dynamics governed by slowly changing variables with an increased likelihood of systemic threshold changes/tipping points in the near future. The results will feed into simulation models and strategies that can define alternative and sustainable paths for land management.

show abstract

Section: Social and Biophysical Driversmentioning

confidence: 99%

Recent changes in ecosystem services and human well-being in the Bangladesh coastal zone

et al. 2015

View full text Add to dashboard Cite

show abstract

“…The distribution of wetland vegetation plant is influenced by soil salinity (Fan et al 2011;Minggagud & Yang 2012;Zhang et al 2013), which even at low levels becomes an abiotic stress factor that influences vegetation patterns and diversification (Bui 2013). Salinization also has an impact on agro-biodiversity (Rahman et al 2011) and, furthermore, poses a serious threat to the health of many fresh and brackish water wetlands. In coastal saline areas, salinity of soil, groundwater and surface water, and groundwater depth vary greatly (MPO 1986).…”

mentioning

confidence: 99%

Spatial variability of soil salinity in Bohai Sea coastal wetlands, China: Partition into four management zones

Liu

Yang

et al. 2013

Plant Biosystems - An International Journal Dealing with all As

View full text Add to dashboard Cite

Soil salinization constitutes an environmental hazard worldwide. The Bohai Sea coastal wetland area is experiencing dramatic soil salinization, which is affecting its economic development. This study focused on the spatial variation and distribution characteristics of soil salinity in this area using geostatistical analysis combined with the kriging interpolation method, based on a large-scale field investigation and layered soil sampling (0-30, 30-60 and 60 -100 cm). The results revealed that soil salinity in these layers demonstrated strong variability, obvious spatial structure characteristics and strong spatial autocorrelation. Soil salinity displayed a significant zonal distribution, gradually decreasing with increasing distance from the coastline. Apart from the northern part of the study area, which appeared to be not affected by soil salinization, there were varying degrees of soil salinization in nearly 70% of the total area. With increasing soil depth, the areas of non-salinized and mild salinized soil gradually decreased, while those of moderate salinized and strong salinized soils increased. The area of saline soil first decreased and then increased. The study area could be divided into four management zones according to soil salinities in the top 1-m soil body, and utilization measures, adapted to local conditions, were proposed for each zone. The results of our study present an important theoretical basis for the improvement of saline soils, for wetland re-vegetation and for the sustainable utilization of soil resources in the Bohai Sea coastal wetland.

show abstract

“…Increases in saltwater intrusion and flooding have been observed in low-lying agricultural areas of deltaic regions and small islands, but the contribution of climate change to this is not clear (e.g., Rahman et al, 2011; see also Sections 5.4.2.5, 5.4.3.3). While both climate change impacts on physiological and ecological properties of fish (e.g., Barange and Perry, 2009; see also Section 18.3.4) and vulnerability of coastal communities and fisherfolks to climate fluctuations and change (Badjeck et al, 2010;Cinner et al, 2012) are well established in the literature, there is limited evidence for observed effects of climate change on coastal fishery operations (see also Section 18.4.1.2).…”

Section: 4)mentioning

confidence: 99%

Detection and Attribution of Observed Impacts

Crämer¹,

Yohe²,

Auffhammer³

et al.

Climate Change 2014 Impacts, Adaptation, and Vulnerability

View full text Add to dashboard Cite

Salinity impacts on agro-biodiversity in three coastal, rural villages of Bangladesh

Cited by 87 publications

References 43 publications

Recent changes in ecosystem services and human well-being in the Bangladesh coastal zone

Recent changes in ecosystem services and human well-being in the Bangladesh coastal zone

Spatial variability of soil salinity in Bohai Sea coastal wetlands, China: Partition into four management zones

Detection and Attribution of Observed Impacts

Contact Info

Product

Resources

About