DOI: 10.1007/s10584-013-0817-1
Scopus记录号: 2-s2.0-84911993749
论文题名: Temporal patterns of deforestation and fragmentation in lowland Bolivia: implications for climate change
作者: Pinto-Ledezma J.N. ; Rivero Mamani M.L.
刊名: Climatic Change
ISSN: 0165-0009
EISSN: 1573-1480
出版年: 2014
卷: 127, 期: 1 起始页码: 43
结束页码: 54
语种: 英语
Scopus关键词: Deforestation
; Ecosystems
; Deforestation patterns
; Distribution policies
; Evergreen forests
; Forest fragments
; Landscape fragmentation
; Natural landscapes
; Spatial configuration
; Temporal pattern
; Climate change
; climate change
; deforestation
; ecoregion
; forest cover
; habitat fragmentation
; human activity
; landscape change
; landscape evolution
; lowland environment
; Agriculture
; Deforestation
; Economic Analysis
; Forests
; Plants
; Bolivia
; Gran Chaco
英文摘要: The lowlands of eastern and northeastern Bolivia are characterized by a transition between the humid evergreen forests of the Amazon Basin and the deciduous thorn-scrub vegetation of the Gran Chaco. Within this landscape lies one of the world’s best preserved areas: the ecoregion known as the Chiquitano dry forest, where deforestation patterns over a 30 year period were analyzed. Results indicate that the area of the natural cover was reduced from 97.21 % before 1976 to 82.10 % in 2008, causing significant change in the landscape, especially in the spatial configuration of forest cover. The density of forest fragments increased from 0.073 patches per 100 ha before 1976 to 0.509 in 2008, with a mean distance between patches of 151 and 210 m over the same period, leading to a considerable reduction in the fragment sizes, from 1,204 ha before 1976 to a mere 54 in 2008. This pattern, observed in forests, does not occur in the savannas because, on one hand the savanna area is much lower compared to that of forests, and on the other because the deforestation process tended to be concentrated within forested areas. Based on the observed patterns, it is possible that in the future the natural landscapes will be substituted principally by anthropic landscapes, if there is no change in the economic and land distribution policies. If this process continues, it will stimulate the expansion of mechanized agriculture and the colonization of new areas, which will lead to further deforestation and landscape fragmentation. © 2013, Springer Science+Business Media Dordrecht. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/84808
Appears in Collections: 气候减缓与适应 气候变化事实与影响
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作者单位: Departamento de Ecología, Museo de Historia Natural Noel Kempff Mercado, Universidad Autónoma Gabriel René Moreno, Av. Irala 565, CC. 2489, Santa Cruz de la Sierra, Bolivia; Carreras de Biología y Ciencias Ambientales, Universidad Autónoma Gabriel René Moreno, El Vallecito Km. 9 carretera al Norte, CC. 702, Santa Cruz de la Sierra, Bolivia
Recommended Citation:
Pinto-Ledezma J.N.,Rivero Mamani M.L.. Temporal patterns of deforestation and fragmentation in lowland Bolivia: implications for climate change[J]. Climatic Change,2014-01-01,127(1)