Impact of salinity intrusion on land use, biodiversity and ecosystem services in Tala, Satkhira

Abstract:

In the coastal region of Bangladesh, one of the most significant problems is salinity intrusion. The salinity levels are rising at an alarming rate, impacting around 53% of the coastal regions. The present study aimed to investigate the present status and impact of salinity intrusion on land use, biodiversity and ecosystem services at Khalilnagar, Tala, Satkhira. Soil and water salinity measurement, key informant interview (KII), a standardized questionnaire survey and Focused Group Discussion (FGD) were carried out. It was found that in late March to April salinity intrusion occurs mostly and it has a detrimental impact on the socioeconomic status of the residents of the study area by changing the land use 5-10% in every year from agricultural field to shrimp farm, thus mostly affected crop is Aman. Fresh water fish diversity has become affected and some species are now rarely seen. Alternatively Shrimp culture farms have been increased. Biodiversity of birds and reptiles also affected along with decreasing fruit and timber trees whereas mangrove trees are increasing. Consequently, the majority of the communities in the research area are shifting their occupations from being agricultural farmers to being shrimp farmers, shopkeepers, laborers etc., and even some of the localities have migrated to new places. Another vital problem in the study area is the lack of safe drinking water having no salinity. With the help of the government and local NGOs, some time-sensitive immediate actions must be taken to protect against salinity intrusion and to identify appropriate solutions to salinity concerns.

• Supervision