globalchange  > 气候减缓与适应
DOI: 10.1016/j.foreco.2018.11.034
WOS记录号: WOS:000456902500049
论文题名:
Species-specific growth resilience to drought in a mixed semi-deciduous tropical moist forest in South Asia
作者: Rahman, Mizanur1,2; Islam, Mahmuda1,2; Braeuning, Achim1
通讯作者: Rahman, Mizanur
刊名: FOREST ECOLOGY AND MANAGEMENT
ISSN: 0378-1127
EISSN: 1872-7042
出版年: 2019
卷: 433, 页码:487-496
语种: 英语
英文关键词: Bangladesh ; Dendroecology ; Drought resilience ; Drought tolerance ; Extreme event ; Moist tropical forest ; Tree growth ; Tree-ring
WOS关键词: FAGUS-SYLVATICA ; CARBON BALANCE ; CLIMATE-CHANGE ; POINTER YEARS ; TRADE-OFFS ; TREE ; PATTERNS ; SENSITIVITY ; DECLINE ; RESPONSES
WOS学科分类: Forestry
WOS研究方向: Forestry
英文摘要:

The frequency and intensity of drought events have increased during the recent decades, particularly in the tropics. Yet, the growth and physiological responses of many tropical tree species to drought are still inadequately understood. We studied the drought resilience of two functionally different canopy tree species (Chukrasia tabularis and Toone ciliate) from a moist tropical forest in Bangladesh during two extreme drought events (1984 and 1999). We quantified four resilience components (resistance, recovery, resilience and relative resilience) of both species to infer drought tolerance of selected trees. Tree radial growth dropped by 44-56% in the drought years, varying with species and drought events. Two species showed no differences in their drought resistance during any of the drought events. However, C. tabularis showed higher recovery and resilience than T. ciliate after the 1999 drought event. T. ciliate showed higher resilience after the 1984 drought event. Linear mixed effect model (LMEM) revealed that growth rates in the two years before and after the drought events had a dominant role in drought responses over tree age, height, diameter, basal area increment and crown exposure, although crown exposure had significant influence on the resistance and the resilience of light demanding T. ciliate. We conclude that diffuse porous and intermediate shade tolerant C. tabularis is more drought tolerant than the ring-porous and light demanding T. ciliate. Since both study species are widely used as plantation species throughout the tropics, our results have important implications for forest managers to take decision on species suitability for plantation programs and to adopt forest management to future climate change conditions.


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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/129957
Appears in Collections:气候减缓与适应

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作者单位: 1.Friedrich Alexander Univ Erlangen Nuremberg, Inst Geog, Wetterkreuz 15, D-91058 Erlangen, Germany
2.Shahjalal Univ Sci & Technol, Dept Forestry & Environm Sci, Sylhet 3114, Bangladesh

Recommended Citation:
Rahman, Mizanur,Islam, Mahmuda,Braeuning, Achim. Species-specific growth resilience to drought in a mixed semi-deciduous tropical moist forest in South Asia[J]. FOREST ECOLOGY AND MANAGEMENT,2019-01-01,433:487-496
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