Next Article in Journal
Economic Feasibility of Managing Loblolly Pine Forests for Water Production under Climate Change in the Southeastern United States
Next Article in Special Issue
Spatial Patterns of Canopy Disturbance, Structure, and Species Composition in a Multi-Cohort Hardwood Stand
Previous Article in Journal
Effects of Host Variability on the Spread of Invasive Forest Diseases
Article Menu
Issue 3 (March) cover image

Export Article

Open AccessArticle
Forests 2017, 8(3), 84; doi:10.3390/f8030084

Prevalence of Inter-Tree Competition and Its Role in Shaping the Community Structure of a Natural Mongolian Scots Pine (Pinus sylvestris var. mongolica) Forest

1
Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, China
2
Research Center of Cold Temperate Forestry, Chinese Academy of Forestry, Harbin 150086, China
3
Key Laboratory of Tree Breeding and Cultivation, State Forestry Administration, Beijing 100091, China
*
Author to whom correspondence should be addressed.
Received: 27 January 2017 / Revised: 2 March 2017 / Accepted: 8 March 2017 / Published: 16 March 2017
(This article belongs to the Special Issue Successional Dynamics of Forest Structure and Function)
View Full-Text   |   Download PDF [3718 KB, uploaded 17 March 2017]   |  

Abstract

Inter-tree competition is considered one of the most important ecological processes of forest development. However, its importance in structuring the spatial patterns of plant communities remains controversial. We collected observational data from two plots in a natural Mongolian Scots pine forest to study the contribution of competition to tree growth, mortality, and size inequality. We used the nearest neighbour method to determine the presence of competition, and unmarked and marked spatial point pattern analyses to test the density-dependent mortality effects and the spatial autocorrelation of tree size. We identified significant positive correlations between tree canopy diameter and nearest neighbour distance in both plots, which were more evident in the denser plot. The pair correlation functions of both plots indicated regular distribution patterns of living trees, and trees living in more crowded environments were more likely to die. However, the mark differentiation characteristics showed weak evidence of a negative spatial autocorrelation in tree size, particularly in the high-density plot. The high mortality rate of suppressed trees and weak asymmetric competition may have accounted for the lack of dissimilarity in tree size. This study showed that inter-tree competition is an important determinant of the development of Mongolian Scots pine forests.
View Full-Text
Keywords: inter-tree competition; nearest neighbour analysis; spatial point pattern analysis; regular spacing; sizes dissimilarity; Mongolian Scots pine inter-tree competition; nearest neighbour analysis; spatial point pattern analysis; regular spacing; sizes dissimilarity; Mongolian Scots pine
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Wang, H.; Wan, P.; Wang, Q.; Liu, L.; Zhang, G.; Hui, G. Prevalence of Inter-Tree Competition and Its Role in Shaping the Community Structure of a Natural Mongolian Scots Pine (Pinus sylvestris var. mongolica) Forest. Forests 2017, 8, 84.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Forests EISSN 1999-4907 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top