DOI: 10.1016/j.foreco.2016.11.001
Scopus记录号: 2-s2.0-85007295170
论文题名: Estimation of carrying capacity in loblolly pine (Pinus taeda L.)
作者: Yang S.-I. ; Burkhart H.E.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2017
卷: 385 起始页码: 167
结束页码: 176
语种: 英语
英文关键词: Competition-density index
; Miniature scale trial (microcosm)
; Nilson's sparsity index
; Physiographic regions
; Reineke's self-thinning rule
; Stand basal area
Scopus关键词: Ecology
; Density index
; Miniature scale trial (microcosm)
; Nilson's sparsity index
; Physiographic regions
; Self-thinning rules
; Stand basal area
; Forestry
; basal area
; biomass
; carrying capacity
; competition (ecology)
; coniferous tree
; diameter
; estimation method
; microcosm
; plantation
; population density
; self thinning
; size structure
; spacing
; Atlantic Coastal Plain
; Piedmont [United States]
; United States
; Pinus taeda
英文摘要: For plant populations, carrying capacity is the maximum number or biomass of a species that can be sustained under finite site resources on a long-term basis. This study was aimed at estimating the carrying capacity in planted stands of loblolly pine. Maximum stand basal area (BA) that can be sustained over a long period of time can be regarded as a measure of carrying capacity. To quantify and project stand BA carrying capacity, one approach is to use the estimate from a fitted cumulative BA-age equation; another approach is to obtain BA estimates implied by maximum size-density relationships (MSDRs), denoted implied maximum stand BA. The efficacy of three diameter-based MSDR measures: Reineke's self-thinning rule, competition-density rule and Nilson's sparsity index, were evaluated. Estimates from these three MSDR measures were compared with estimates from the Chapman-Richards (C-R) equation fitted to the maximum stand BA observed on plots from spacing trials. The spacing trials, established in two physiographic regions (Piedmont and Coastal Plain) in the southeastern United States, and at two different scales (operational and miniature) were examined to provide an empirical basis for potential carrying capacity of loblolly pine. Results showed that the value of implied maximum stand BA converted from three diameter-based MSDR measures was similar to the maximum stand BA curve obtained from the C-R equation. All three MSDR measures provided similar estimates of stand BA carrying capacity, with Nilson's sparsity index yielding the most stable and reliable estimate. The potential stand BA carrying capacity between the two physiographic regions was significantly different. The maximum stand BA associated with planting density developed similarly at the operational and miniature scales. © 2016 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/64560
Appears in Collections: 影响、适应和脆弱性
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作者单位: Department of Forest Resources and Environmental Conservation, Virginia Polytechnic Institute and State University, 319 Cheatham Hall, Blacksburg, VA, United States
Recommended Citation:
Yang S.-I.,Burkhart H.E.. Estimation of carrying capacity in loblolly pine (Pinus taeda L.)[J]. Forest Ecology and Management,2017-01-01,385