Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.foreco.2019.117667 |
Juvenile thinning can effectively mitigate the effects of drought on tree growth and water consumption in a young Pinus contorta stand in the interior of British Columbia, Canada | |
Wang, Yi1,2; Wei, Xiaohua1; del Campo, Antonio D.3; Winkler, Rita4; Wu, Jianping5; Li, Qiang1; Liu, Wanyi1 | |
2019-12-15 | |
发表期刊 | FOREST ECOLOGY AND MANAGEMENT |
ISSN | 0378-1127 |
EISSN | 1872-7042 |
出版年 | 2019 |
卷号 | 454 |
文章类型 | Article |
语种 | 英语 |
国家 | Canada; Spain; Peoples R China |
英文摘要 | Large-scale forest disturbances including mountain pine beetle infestation and forest fires have generated overstocked lodgepole pine stands in the interior of British Columbia. A critical need is to determine sustainable management strategies to ensure their healthy growth and provision of various ecological functions under increased drought risk due to climate change. In 2016, a field experiment was established to study the effects of juvenile thinning on carbon assimilation and water use at the both tree- and stand-scales in a 16-year old lodgepole pine stand from June to October in 2016 and 2017. This study located northeast of Penticton, British Columbia, included two thinning treatments (T1: 4500 stems per ha; and T2: 1100 stems per ha) and one control (C: 27,000 stems per ha), randomly assigned in three blocks. Sap flow and microclimatic variables were continuously monitered in one plot of each treatment in one block, while tree diameter at breast height were measured across the three blocks. The results showed that C had the lowest tree radial growth (0.14 mm(2)/d), sap flow velocity (64.61 g/cm(2)d), and highest stand transpiration (4.36 mm/d), while T2 had the highest tree radial growth (1.28 mm(2)/d), sap flow velocity (149.14 g/cm(2)d), and lowest stand transpiration (0.36 mm/d) over the two-year study period. Significant differences of tree radial growth and sap flow velocity between T1 and T2 only occurred under the drought condition (in the summer season of 2017), with T2 having a significant higher resistant index of sap flow velocity than C and T1, by taking advantage of the change in microclimatic conditions following intense thinning. At the stand-level, only the stand transpiration of T1 statistically decreased in the drought year. We conclude that the thinning plays a significant and positive role in maintaining tree growth and water consumption in the short term, and the more heavily thinning (T2) would be more effective to mitigate the drought effect in young overstocking lodgepole pine forests in terms of water consumption. These findings improve our understanding on how thinning can be used to manage ecological responses to forest practices in a changing climate. |
英文关键词 | Juvenile thinning Thinning intensity Pinus contorta Carbon and water processes Sap flow Drought |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000500372100008 |
WOS关键词 | LONG-TERM RESPONSES ; XYLEM SAP FLOW ; LODGEPOLE PINE ; USE EFFICIENCY ; CLIMATE-CHANGE ; CANOPY TRANSPIRATION ; FOREST TRANSPIRATION ; SOUTHERN INTERIOR ; JAPANESE CYPRESS ; SPRUCE FOREST |
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/224793 |
专题 | 环境与发展全球科技态势 |
作者单位 | 1.Univ British Columbia, Dept Earth Environm & Geog Sci, 1177 Res Rd, Kelowna, BC V1V 1V7, Canada; 2.Univ Waterloo, Dept Geog & Environm Management, 200 Univ Ave W, Waterloo, ON N2L 3G1, Canada; 3.Univ Politecn Valencia, Res Inst Water & Environm Engn IIAMA, Cami de Vera S-N, E-46022 Valencia, Spain; 4.BC Minist Forests Lands & Nat Resource Operat, 515 Columbia St, Kamloops, BC V2C 2T7, Canada; 5.Yunnan Univ, Lab Ecol & Evolutionary Biol, State Key Lab Conservat & Utilizat Bioresources Y, Kunming 650500, Yunnan, Peoples R China |
推荐引用方式 GB/T 7714 | Wang, Yi,Wei, Xiaohua,del Campo, Antonio D.,et al. Juvenile thinning can effectively mitigate the effects of drought on tree growth and water consumption in a young Pinus contorta stand in the interior of British Columbia, Canada[J]. FOREST ECOLOGY AND MANAGEMENT,2019,454. |
APA | Wang, Yi.,Wei, Xiaohua.,del Campo, Antonio D..,Winkler, Rita.,Wu, Jianping.,...&Liu, Wanyi.(2019).Juvenile thinning can effectively mitigate the effects of drought on tree growth and water consumption in a young Pinus contorta stand in the interior of British Columbia, Canada.FOREST ECOLOGY AND MANAGEMENT,454. |
MLA | Wang, Yi,et al."Juvenile thinning can effectively mitigate the effects of drought on tree growth and water consumption in a young Pinus contorta stand in the interior of British Columbia, Canada".FOREST ECOLOGY AND MANAGEMENT 454(2019). |
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