Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.foreco.2018.01.052 |
Linking competition with Growth Dominance and production ecology | |
Fernandez-Tschieder, Ezequiel1,2; Binkley, Dan3 | |
2018-04-15 | |
发表期刊 | FOREST ECOLOGY AND MANAGEMENT
![]() |
ISSN | 0378-1127 |
EISSN | 1872-7042 |
出版年 | 2018 |
卷号 | 414页码:99-107 |
文章类型 | Review |
语种 | 英语 |
国家 | Argentina; USA |
英文摘要 | The development of forests over time is influenced by competition for resources among trees, leading to patterns of size hierarchy. These two aspects - competition and size hierarchy - can be examined in conjunction with a production ecology perspective. Competition for resources between individuals has often been represented as a continuum between absolute symmetry and absolute asymmetry. Symmetric competition implies that trees capture resources proportional to size, whereas asymmetric competition implies that large trees capture a dis-proportional share of contested resources over small trees. Furthermore, the competitive ability of a tree is also determined by the efficiency with which the resources are used to grow. Competition is often inferred indirectly from size inequality or size hierarchy of the size structure using the Gini coefficient. This approach assumes that the predominant mode of competition is asymmetric, and that size hierarchy reflects a degree of competition. This presumption is not always valid, and in this case size hierarchy does not reliably represent competition. A more insightful examination of competition might be interpreted from the Growth Dominance approach. Growth dominance summarizes the growth distribution in relation to size structure, and characterizes how effectively large trees dominate growth in a population. When competition is not asymmetric, size hierarchy does not imply a hierarchy on growth relative to size. For example, two stands experiencing opposite modes of competition could have the same Gini coefficient, but will show different Growth Dominance coefficients. We propose that the connection between competition and Growth Dominance relates to specific resource use and resource use efficiency patterns among trees in a stand. Growth dominance can be positive (if larger trees dominate growth), null (if no particular group of trees dominate growth) or reverse (if smaller trees dominate growth). Positive Growth Dominance should relate to asymmetric competition for resources and (or) to increasing resource use efficiency with tree size in a stand. Null Growth Dominance should result from symmetric competition for resources and similar resource use efficiency among trees in a stand. Reverse Growth Dominance should arise from symmetric competition for resources and (or) from a decreasing resource use efficiency with tree size in a stand. We look forward to the development of many case studies that will challenge our idea, either refining or refuting it. |
英文关键词 | Gini coefficient Size hierarchy Resource use Resource use efficiency Size-growth relationships |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000428103600010 |
WOS关键词 | SIZE-ASYMMETRIC COMPETITION ; LIGHT USE EFFICIENCY ; PLANT MONOCULTURES ; EUCALYPTUS-GRANDIS ; STAND DEVELOPMENT ; FOREST STANDS ; PATTERNS ; VARIABILITY ; POPULATIONS ; GRADIENT |
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/22323 |
专题 | 气候变化 |
作者单位 | 1.INTA, Agr Expt Stn Delta Parana, Secc Isl CC 14, Rio Parana Palmas & Canal Laurentino Comas 4ta, RA-2804 Campana, Buenos Aires, Argentina; 2.Colorado State Univ, Dept Ecosyst Sci & Sustainabil, Grad Degree Program Ecol, Ft Collins, CO 80523 USA; 3.No Arizona Univ, Sch Forestry, Flagstaff, AZ 86011 USA |
推荐引用方式 GB/T 7714 | Fernandez-Tschieder, Ezequiel,Binkley, Dan. Linking competition with Growth Dominance and production ecology[J]. FOREST ECOLOGY AND MANAGEMENT,2018,414:99-107. |
APA | Fernandez-Tschieder, Ezequiel,&Binkley, Dan.(2018).Linking competition with Growth Dominance and production ecology.FOREST ECOLOGY AND MANAGEMENT,414,99-107. |
MLA | Fernandez-Tschieder, Ezequiel,et al."Linking competition with Growth Dominance and production ecology".FOREST ECOLOGY AND MANAGEMENT 414(2018):99-107. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论