Climbing the mountain fast but smart: Modelling rubber tree growth and latex yield under climate change

doi:10.1016/j.foreco.2019.02.028

	Climbing the mountain fast but smart: Modelling rubber tree growth and latex yield under climate change
	Yang, Xueqing1,2,3,4 ; Blagodatsky, Sergey 1; Marohn, Carsten 1; Liu, Hongxi 1; Golbon, Reza 1; Xu, Jianchu3,4 ; Cadisch, Georg 1
通讯作者	Blagodatsky, Sergey()
	2019-05-01
发表期刊	FOREST ECOLOGY AND MANAGEMENT
ISSN	0378-1127
卷号	439 页码:55-69
摘要	Para rubber (Hevea brasiliensis Mull. Arg) plantations have expanded into regions with sub-optimal growth conditions: distinct dry seasons and temperatures cooler than in humid tropics. The impact of these new marginal environments and future climate change on rubber tree development and latex yield is largely unknown. This hampers reliable prediction of farmers' revenues and extent of carbon sequestration at landscape level. To improve our understanding of rubber trees response to planting at high altitudes and associated increase in planting densities, we applied the process-based Land Use Change Impact Assessment tool (LUCIA). It was calibrated with detailed ground survey data from Xishuangbanna, southwest China to model tree biomass development and latex yield in rubber plantations at the tree, plot and landscape level. Plantations were analyzed at < 900 m above sea level (a.s.l., lowland rubber) and >= 900 m a.s.l. (highland rubber) in order to characterize the effect of elevation on rubber trees. Three planting densities: low (< 495 trees ha(-1)), medium (495-600 trees ha(-1)) and high (> 600 trees ha(-1)) were tested. Four greenhouse gas emission scenarios, with Representative Concentration Pathways (RCP) ranging from the lowest RCP 2.6 to the highest emission scenario RCP 8.5, were used to test rubber tree response to climate change. During a 40-year rotation under current climate, lowland rubber plantations grew faster and had larger latex yields than highland rubber. The average biomass of lowland rubber was 9% and 18% higher than those of highland rubber for aboveground and belowground biomass, respectively. High planting density rubber plantations showed 5% and 4% higher above ground biomass than those at low- and medium-planting density, but simulations suggest that the cumulative latex production decreased strongly by 26% and 14% respectively. The results of the RCP 8.5 climate change scenario suggested that during 40 years simulation mean total biomass and cumulative latex yield of highland rubber (per tree) increased by 28% and 48%, while lowland rubber increased by 8% and 10% respectively when compared to the baseline. Other rubber cultivation regions could also benefit from this modelling approach that helps in optimization of carbon stock and latex production in rubber-based system. The results could help in development of future climate change adaption and mitigation strategies.
关键词	Landscape modelling Land use change Carbon sequestration Planting density Tree plantation
DOI	10.1016/j.foreco.2019.02.028
收录类别	SCI
语种	英语
WOS记录号	WOS:000463129400006
引用统计	被引频次：19[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/66172
专题	资源植物与生物技术所级重点实验室
通讯作者	Blagodatsky, Sergey
作者单位	1.Univ Hohenheim, Hans Ruthenberg Inst, Inst Agr Sci Trop, Stuttgart, Germany 2.Chinese Acad Sci, Kunming Inst Bot, Key Lab Econ Plants & Biotechnol, Kunming, Yunnan, Peoples R China 3.World Agroforestry Ctr ICRAF, Kunming, Yunnan, Peoples R China 4.Kunming Inst Bot, East Asia Off, Kunming, Yunnan, Peoples R China
推荐引用方式 GB/T 7714	Yang, Xueqing,Blagodatsky, Sergey,Marohn, Carsten,et al. Climbing the mountain fast but smart: Modelling rubber tree growth and latex yield under climate change[J]. FOREST ECOLOGY AND MANAGEMENT,2019,439:55-69.
APA	Yang, Xueqing.,Blagodatsky, Sergey.,Marohn, Carsten.,Liu, Hongxi.,Golbon, Reza.,...&Cadisch, Georg.(2019).Climbing the mountain fast but smart: Modelling rubber tree growth and latex yield under climate change.FOREST ECOLOGY AND MANAGEMENT,439,55-69.
MLA	Yang, Xueqing,et al."Climbing the mountain fast but smart: Modelling rubber tree growth and latex yield under climate change".FOREST ECOLOGY AND MANAGEMENT 439(2019):55-69.

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