Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.foreco.2019.117577 |
Understory plant communities vary with tree productivity in two reclaimed boreal upland forest types in Canada | |
Duan, Min1,2; House, Jason; Chang, Scott X.3,4 | |
2019-12-01 | |
发表期刊 | FOREST ECOLOGY AND MANAGEMENT |
ISSN | 0378-1127 |
EISSN | 1872-7042 |
出版年 | 2019 |
卷号 | 453 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; Canada |
英文摘要 | The dynamics of understory plant communities in forest ecosystems with different tree productivities that are reclaimed after surface mining is poorly studied. In the Athabasca oil sands region of Canada, the cover, composition, diversity and foliar nutrient concentrations of understory vascular plant communities were examined on reclaimed sites (at least 15 years old since site reconstruction) with low, medium and high productivity that were planted to lodgepole pine (Pinus contorta) and white spruce (Picea glauca). Understory plant communities showed different responses to tree productivity classes in both pine and spruce stands. On pine sites, higher shrub and grass covers contributed to higher total cover on medium than on low and high productivity sites; however, low and high productivity sites had higher species richness and Shannon-Wiener index than medium productivity sites. In addition, shrub, grass and total covers were all positively correlated with cover soil thickness, soil dissolved organic carbon and inorganic nitrogen concentrations, but there was no relationship between any understory plant community variable and tree growth parameters. On spruce sites, lower shrub and forb covers and higher grass cover on high than on low and medium productivity sites resulted in no difference in total cover among productivity classes; however, species richness and Shannon-Wiener index were higher on medium than on low and high productivity sites. Additionally, forb cover, species richness and Shannon-Wiener index were all negatively correlated with leaf area index, and grass cover and species evenness were positively correlated with tree growth parameters such as height, diameter at breast height and aboveground biomass increments. We conclude that the relationships between tree productivity and understory plant communities in reclaimed forest ecosystems were site specific. Reclamation strategies such as adopting a proper planted tree spacing or fertilization should be used on sites with different tree productivities to balance overstory tree growth with understory plant community development in reclaiming surface-disturbed mining areas. |
英文关键词 | Disturbance Lodgepole pine Oil sands region Plant community Species diversity White spruce |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000496607200002 |
WOS关键词 | DEVELOPMENT FOLLOWING RECLAMATION ; PINE PINUS-CONTORTA ; SPRUCE PICEA-GLAUCA ; OIL SANDS ; DIVERSITY ; OVERSTORY ; SOIL ; BIODIVERSITY ; COMPETITION ; VEGETATION |
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/224754 |
专题 | 环境与发展全球科技态势 |
作者单位 | 1.Guangxi Normal Univ, Minist Educ, Key Lab Ecol Rare & Endangered Species & Environm, Guilin 541004, Peoples R China; 2.Northwest A&F Univ, Coll Forestry, Ctr Ecol Forecasting & Global Change, Yangling 712100, Shaanxi, Peoples R China; 3.Zhejiang A&F Univ, State Key Lab Subtrop Silviculture, Hangzhou 311300, Zhejiang, Peoples R China; 4.Univ Alberta, Dept Renewable Resources, Edmonton, AB T6G 2E3, Canada |
推荐引用方式 GB/T 7714 | Duan, Min,House, Jason,Chang, Scott X.. Understory plant communities vary with tree productivity in two reclaimed boreal upland forest types in Canada[J]. FOREST ECOLOGY AND MANAGEMENT,2019,453. |
APA | Duan, Min,House, Jason,&Chang, Scott X..(2019).Understory plant communities vary with tree productivity in two reclaimed boreal upland forest types in Canada.FOREST ECOLOGY AND MANAGEMENT,453. |
MLA | Duan, Min,et al."Understory plant communities vary with tree productivity in two reclaimed boreal upland forest types in Canada".FOREST ECOLOGY AND MANAGEMENT 453(2019). |
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