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FOREST RESOURCES WANAGEMENT ›› 2018›› Issue (3): 58-64.doi: 10.13466/j.cnki.lyzygl.2018.03.011

• Scientific Research • Previous Articles     Next Articles

A Study on the Minimum Spacing Model of Natural Rhizophora Stylosa Prop Roots Based on the Nearest Neighbor Analysis

LIU Zhifang1(), ZHOU Yuanman2(), WANG Ping2, LIU Zhimei2   

  1. 1. Zhengzhou City green Project Management Office,Zhengzhou 450006,Henan,China
    2. Guangdong Ocean University,Zhanjiang,Guangdong 524088,China
  • Received:2018-02-11 Revised:2018-04-18 Online:2018-06-28 Published:2020-09-20
  • Contact: ZHOU Yuanman E-mail:940341278@qq.com;gdzhouym@163.com

Abstract:

Based on the natural Rhizophora Stylosa of different communities such as R.stylosa pure forest,R.stylosa + Bruguiera gymnorrhiza and R.stylosa + Avicennia marina in mangrove forest nature reserve conservation zone in Techeng Island,the paper analyzed the spatial structure of Rhizophora stylosa prop roots using the Nearest Neighbor Analysis,and tested the deviation of actual CE index from 1 by using the standard normal distribution while three probability models i.e Normal distribution,Weibull distribution and Gamma distribution were applied to analyze the structure features of Rhizophora stylosa prop roots,and the prop root distributions were compared.The results showed that Rhizophora prop roots in three kinds of community types were aggregated distribution pattern(u >2.58);the fitting was different in different communities with 3 distributions,and the Gamma distribution model had the best fitness to express the spatial structure of Rhizophora prop roots(α=0.01).The nearest neighbor analysis was good to estimate the spatial distribution patterns.

Key words: Techeng Island, natural Rhizophora stylosa, prop root, minimum spacing model, Nearest Neighbor Analysis

CLC Number: