Canopy gap characteristics and spatial patterns in a subtropical forest of South China after ice storm damage
文献类型：期刊论文
| 作者 | Liu, Feng; Yang, Zhi-gao; Zhang, Gui |
| 刊名 | JOURNAL OF MOUNTAIN SCIENCE
 |
| 出版日期 | 2020 |
| 卷号 | 17期号:8页码:1942-1958 |
| 关键词 | Canopy gap Disturbance Spatial point pattern Influence factors Silviculture |
| ISSN号 | 1672-6316 |
| DOI | 10.1007/s11629-020-6020-8 |
| 文献子类 | Article |
| 英文摘要 | The divergent gap characteristics and spatial patterns of canopy gaps created by natural or artificial disturbances can exert a dominant influence on forest structure and composition. However, little research has been conducted on the effects of ice storm damage on canopy gaps in subtropical mature forests of South China. In this study, one semi-natural site was dominated by a broad-leaf forest and two managed sites were representative of plantations with coniferous forests. Based on airborne laser scanning data and field evidence across sites, statistical analyses were used to examine gap characteristics following ice storms of moderate severity. GeneralizedRipley'sK-function analysis was applied to test gap spatial patterns at a range of scales, and spatial point pattern analysis was used to quantitate the relative importance of specific influences on patterns of gap occurrence. The results revealed that the average gap size was 75.7 m(2)and that 12.2 gaps occurred per hectare. Most gaps were single-tree fall events. In addition to more gaps, the mean gap size was smaller and the shape was more complex in the semi-natural site than in two managed sites. Large differences in gap characteristics were observed among snapped, uprooted, snag, and artificial gap damage types. Gaps generally showed a clustered distribution at large scales (e.g. 70m), whereas spatial patterns varied with gap damage types at different sites. The occurrence of gaps was strongly related to slope and topographic position at the semi-natural site, whereas slope, stem density, and human accessibility (proximity to pathways) were the most important factors affecting gap occurrence at the managed sites. We suggest that gap-based silvicultural treatments and natural disturbances regimes conjoin, highlighting interactions with other factors such as microsite conditions, non-tree vegetation and more. |
| 电子版国际标准刊号 | 1993-0321 |
| 语种 | 英语 |
| WOS记录号 | WOS:000549723200002 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/50467]  |
| 专题 | Journal of Mountain Science_Journal of Mountain Science-2020_Vol17 No.8 |
| 推荐引用方式 GB/T 7714 | Liu, Feng,Yang, Zhi-gao,Zhang, Gui. Canopy gap characteristics and spatial patterns in a subtropical forest of South China after ice storm damage[J]. JOURNAL OF MOUNTAIN SCIENCE,2020,17(8):1942-1958. |
| APA | Liu, Feng,Yang, Zhi-gao,&Zhang, Gui.(2020).Canopy gap characteristics and spatial patterns in a subtropical forest of South China after ice storm damage.JOURNAL OF MOUNTAIN SCIENCE,17(8),1942-1958. |
| MLA | Liu, Feng,et al."Canopy gap characteristics and spatial patterns in a subtropical forest of South China after ice storm damage".JOURNAL OF MOUNTAIN SCIENCE 17.8(2020):1942-1958. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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