气候变化领域集成服务门户(CCPortal): Long-term effects of white-tailed deer overabundance, hybrid poplar genotype and planting stock type on tree growth and ecosystem services provision in bioenergy buffers

CCPortal

DOI	10.1016/j.foreco.2020.118673
	Long-term effects of white-tailed deer overabundance, hybrid poplar genotype and planting stock type on tree growth and ecosystem services provision in bioenergy buffers
	Truax B.; Fortier J.; Gagnon D.; Lambert F.
发表日期	2021
ISSN	0378-1127
卷号	480
英文摘要	Populus hybrids are increasingly planted in multifunctional bioenergy buffers bordering crop fields. However, such small agroforestry systems are vulnerable to damage caused by overabundant deer populations. We measured after 8 years the effects of white-tailed deer (Odocoileus virginianus), genotype and planting stock type on tree growth and ecosystem services provision (biomass production; energy, nutrient and carbon storage; and phytoaccumulation of soil nitrate and phosphorus) in 15-m wide buffers located downslopes of hayfields in southern Québec (Canada). Two deer protection treatments (fenced and unfenced), two genotypes (P. deltoides × P. nigra, genotype D×N-3570 and P. maximowiczii × P. balsamifera, genotype M×B-915311) and two stock types (bare-root stocks: ±1.8 m in height and whips: 2.5 m in height) were studied. In unfenced plots, deer heavily browsed poplars (increase in the height of the first branch by 59 cm), repeatedly rubbed tree bark (36% of trees with rubs for genotype D×N-3570, and 59% for genotype M×B-915311), slightly decreased survival (by 2.9%), which reduced tree-level and stand-level productivity. Proportion of trees with rubs, first branch height and survival were correlated (p < 0.001) with woody biomass yields. Fenced poplars increased wood volume, biomass and energetic content by 20–21%, and C, N and P stocks in aboveground biomass by 13–20%. Higher soil phosphorus bioavailability was also found in unfenced plots. Genotype D×N-3570, which allocates less biomass to branches, grows its first branches farther from the ground and rapidly develops a rough and thick bark, was the least affected by deer, despite its high palatability. Genotype M×B-915311, which had higher biomass allocation to branches, a smooth and thin bark, but low palatability, was the most affected by deer. Soils in plots of genotype M×B-915311 had the lowest macronutrients availability, except for nitrate. Biomass feedstock quality (i.e. low nutrient concentrations and high heating value of woody biomass) was highest for genotype M×B-915311. In both fenced and unfenced plots, whips were more productive than bare-root stocks, especially for genotype D×N-3570. Optimizing ecosystem services provision in bioenergy buffers can be achieved by fencing, and by genotype and stock type selection. © 2020 The Authors
英文关键词	Agroforestry; Bark traits; Biomass allocation; Branch traits; Cervidae; Deer browsing; Deer rub; Palatability; Phytoaccumulation; Populus
语种	英语
scopus关键词	Biochemistry; Ecosystems; Eutrophication; Forestry; Nitrates; Nutrients; Phosphorus; Soils; Storage as a service (STaaS); Above ground biomass; Agroforestry system; Biomass allocation; Biomass feedstock; Biomass productions; Ecosystem services; High heating values; Nutrient concentrations; Biomass; aboveground biomass; abundance estimation; agroforestry; bioenergy; deciduous forest; deer; ecosystem service; energy crop; genotype; growth regulator; heating; hybrid; stock assessment; survival; Biochemistry; Ecosystems; Eutrophication; Forestry; Nitrates; Nutrients; Canada; Cervidae; Odocoileus virginianus; Populus; Populus alba x Populus tremula
来源期刊	Forest Ecology and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/154827
作者单位	Fiducie de recherche sur la forêt des Cantons-de-l'Est, Eastern Townships Forest Research Trust, 1 rue Principale, Saint-Benoît-du-LacQC J0B 2M0, Canada; Department of Biology, University of Regina, 3737 Wascana Parkway, Regina, SK S4S 0A2, Canada
推荐引用方式 GB/T 7714	Truax B.,Fortier J.,Gagnon D.,et al. Long-term effects of white-tailed deer overabundance, hybrid poplar genotype and planting stock type on tree growth and ecosystem services provision in bioenergy buffers[J],2021,480.
APA	Truax B.,Fortier J.,Gagnon D.,&Lambert F..(2021).Long-term effects of white-tailed deer overabundance, hybrid poplar genotype and planting stock type on tree growth and ecosystem services provision in bioenergy buffers.Forest Ecology and Management,480.
MLA	Truax B.,et al."Long-term effects of white-tailed deer overabundance, hybrid poplar genotype and planting stock type on tree growth and ecosystem services provision in bioenergy buffers".Forest Ecology and Management 480(2021).