Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.foreco.2018.01.034 |
Simulation of net ecosystem productivity of a lodgepole pine forest after mountain pine beetle attack using a modified version of 3-PG | |
Meyer, Gesa1; Black, T. Andrew1; Jassal, Rachhpal S.1; Nesic, Zoran1; Coops, Nicholas C.2; Christen, Andreas3; Fredeen, Arthur L.4; Spittlehouse, David L.5; Grant, Nicholas J.1; Foord, Vanessa N.6; Bowler, Rebecca4,6 | |
2018-03-15 | |
发表期刊 | FOREST ECOLOGY AND MANAGEMENT |
ISSN | 0378-1127 |
EISSN | 1872-7042 |
出版年 | 2018 |
卷号 | 412页码:41-52 |
文章类型 | Article |
语种 | 英语 |
国家 | Canada; Germany |
英文摘要 | The most recent mountain pine beetle (MPB) (Dendroctonus ponderosae) outbreak in British Columbia (BC), which began in the late 1990s, killed similar to 54% of the mature merchantable lodgepole pine and was expected to impact gross primary productivity (GPP), ecosystem respiration (R) and thus net ecosystem productivity (NEP) of infested stands. Eddy-covariance (EC) measurements of carbon dioxide and water vapor fluxes have been made in an almost single-species not-salvage-harvested lodgepole pine stand in northern interior BC during the decade following beetle attack in 2006 to determine the effects on the carbon (C) and water balances. We modified the 3-PG (Physiological Principles in Predicting Growth) model to simulate the effects of MPB attack on the stand. Modifications included a sub-model for heterotrophic respiration, which originates from the decomposition of two substrates, soil organic matter and coarse woody debris from the falling dead trees, thus permitting the determination of R and NEP. The modified model was used to simulate C balance components using model parameter values mostly taken from the literature with some estimated from in-situ measurements. Modelled monthly and annual stand-level GPP, R and NEP agreed well with respective EC-estimated values during the decade following attack. Modelled annual GPP, R and NEP decreased by about 52%, 35% and 126%, respectively, in the first year following attack compared to pre-attack values. Modelled GPP and R, as well as EC estimated GPP, showed a relatively steady increase over the following decade, while R derived from the EC measurements changed little in the first eight years after attack and then increased in the last two years. EC estimated GPP in 2016 exceeded the estimated pre-attack value by 9%, while modelled and EC-estimated R in 2016 exceeded 2005 values by 6% and 15%, respectively. Modelled NEP indicated that the recovering stand became a C sink a year later than indicated by the EC measurements, but both modelled and measured annual NEP increased significantly between 2007 and 2016. Our observations and modelling results show that the remaining trees and the growing understory enabled the not-salvage-harvested stand to recover from insect attack within a decade, with the stand functioning as a weak, yet distinct, C sink in the last two years of the study period. This suggests that the management strategy of not harvesting attacked stands can be beneficial for the C balance of attacked stands with similar characteristics and in similar climates. |
英文关键词 | Eddy covariance Net ecosystem productivity Heterotrophic respiration Gross primary productivity Dendroctonus ponderosae Pines contorta var. latifolia |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000427667700005 |
WOS关键词 | CARBON BALANCE ; PACIFIC-NORTHWEST ; BRITISH-COLUMBIA ; VERTICAL-DISTRIBUTION ; SOIL RESPIRATION ; ENERGY-BALANCE ; USE EFFICIENCY ; CLIMATE-CHANGE ; MODEL ; STAND |
WOS类目 | Forestry |
WOS研究方向 | Forestry |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/24267 |
专题 | 气候变化 |
作者单位 | 1.Univ British Columbia, Fac Land & Food Syst, Vancouver, BC V6T 1Z4, Canada; 2.Univ British Columbia, Dept Forest Resource Management, Vancouver, BC V6T 1Z4, Canada; 3.Univ Freiburg, Fac Environm & Nat Resources, Environm Meteorol, Freiburg, Germany; 4.Univ Northern British Columbia, Ecosyst Sci & Management Program, Prince George, BC V2N 4Z9, Canada; 5.British Columbia Minist Forests Lands & Nat Resou, Victoria, BC V8W 9C2, Canada; 6.British Columbia Minist Forests Lands & Nat Resou, Prince George, BC V2L 1R5, Canada |
推荐引用方式 GB/T 7714 | Meyer, Gesa,Black, T. Andrew,Jassal, Rachhpal S.,et al. Simulation of net ecosystem productivity of a lodgepole pine forest after mountain pine beetle attack using a modified version of 3-PG[J]. FOREST ECOLOGY AND MANAGEMENT,2018,412:41-52. |
APA | Meyer, Gesa.,Black, T. Andrew.,Jassal, Rachhpal S..,Nesic, Zoran.,Coops, Nicholas C..,...&Bowler, Rebecca.(2018).Simulation of net ecosystem productivity of a lodgepole pine forest after mountain pine beetle attack using a modified version of 3-PG.FOREST ECOLOGY AND MANAGEMENT,412,41-52. |
MLA | Meyer, Gesa,et al."Simulation of net ecosystem productivity of a lodgepole pine forest after mountain pine beetle attack using a modified version of 3-PG".FOREST ECOLOGY AND MANAGEMENT 412(2018):41-52. |
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