DOI: 10.1016/j.gloplacha.2016.02.003
论文题名: Development of national database on long-term deforestation (1930-2014) in Bangladesh
作者: Reddy C.S. ; Pasha S.V. ; Jha C.S. ; Diwakar P.G. ; Dadhwal V.K.
刊名: Global and Planetary Change
ISSN: 0921-8181
出版年: 2016
卷: 139 起始页码: 173
结束页码: 182
语种: 英语
英文关键词: Bangladesh
; Conservation
; Forest change
; Monitoring
; Remote sensing
Scopus关键词: Conservation
; Deforestation
; Land use
; Monitoring
; Quality control
; Reforestation
; Remote sensing
; Spatial variables measurement
; Anthropogenic pressures
; Bangladesh
; Dry deciduous forests
; Forest canopy densities
; Forest change
; Forest conversion
; Forest cover change
; Spatial informations
; Forestry
; afforestation
; anthropogenic effect
; deciduous forest
; deforestation
; forest canopy
; forest cover
; forest dynamics
; forest management
; forest resource
; land use change
; mangrove
; monitoring
; plantation
; remote sensing
; scrub
; spatial analysis
; Bangladesh
; Rhizophoraceae
英文摘要: The aim of the present study is to prepare a nation-wide spatial database on forest cover to assess and monitor the land use changes associated with deforestation in Bangladesh. The multi-source data were interpreted to get the forest cover map of 1930, 1975, 1985, 1995, 2006 and 2014. The spatial information generated on total area under forest cover, rate of deforestation and afforestation, changes across forest types, forest canopy density, replacement land use in deforested area and deforestation hotspots. This spatial analysis has indicated that forest cover is undergoing significant negative change in area and quality. We report that forests in Bangladesh covered an area of 23,140 km2 in 1930 which has decreased to 14,086 km2 in 2014, a net loss of 9054 km2 (39.1%) in eight decades. Analysis of annual rate of gross deforestation for the recent period indicates 0.77% during 2006-2014. During the past eight decades, semi-evergreen forests show loss of 56.4% of forest cover followed by moist deciduous forests (51.5%), dry deciduous forests (43.1%) and mangroves (6.5%). The loss of 23.5% of dense forest cover was found from 1975 to 2014. Dense semi-evergreen forests shows more negative change (36.9%) followed by dense moist deciduous forest (32.7%) from 1975 to 2014. Annual rate of deforestation is higher in dense forests compared to open forests from 2006 to 2014 and indicates increased threat due to anthropogenic pressures. The spatial analysis of forest cover change in mangroves has shown a lower rate of deforestation. Most of the forest conversions have led to the degradation of forests to scrub and transition to agriculture and plantation. The study has identified the 'deforestation hotspots' can help in strategic planning for conservation and management of forest resources. © 2016 Elsevier B.V. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84959353590&doi=10.1016%2fj.gloplacha.2016.02.003&partnerID=40&md5=f2aaf550f6d0c804111201a2b55648fa
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/11694
Appears in Collections: 全球变化的国际研究计划 气候变化与战略
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作者单位: National Remote Sensing Centre, Indian Space Research Organisation, Balanagar, Hyderabad, India
Recommended Citation:
Reddy C.S.,Pasha S.V.,Jha C.S.,et al. Development of national database on long-term deforestation (1930-2014) in Bangladesh[J]. Global and Planetary Change,2016-01-01,139.