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- 저자 : Zzaman Md. Rashed Uz (검색결과 1 건)
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Application of remote sensing for salinity based coastal land use zoning in Bangladesh
Morshed Md. Manjur,Sarkar Showmitra Kumar,Zzaman Md. Rashed Uz,Islam Md. Mazharul 대한공간정보학회 2021 Spatial Information Research Vol.29 No.3
Rising soil and water salinity is a major concern for coastal areas. Salt-water shrimp aquaculture is a land use mal-adaption to the rising salinity trend, and is contributing to the salinity expansion as well as lowering land productivity in the coastal areas of Bangladesh. This paper aims to propose a salinity-based land use zoning to restrict salinity expansion and to reduce land use conflicts. An integrated salinity detection technique combing field soil samples, a geographic information system and remote sensing were used. Subsequently, two determining factors of land suitability—soil salinity and distance from saline water sources—were used to identify zones for paddy/crop, mixed use and shrimp. The study districts witnessed rising salinity between 1990 and 2016, and thereby, decreasing suitable land are for paddy/crop by 20.96% of the agricultural area. The land suitability for paddy, mixed use and shrimp zones was found to be 51.88%, 29.36% and 18.76% of the study area, respectively. The proposed zoning strategy of this paper can be used as a quick and efficient tool for baseline information for integrated coastal zone management plan.
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