Tree competition index based on the structural equation model
-
摘要: 为了研究竞争指标之间的关系,本文基于长白山林区云冷杉针阔混交林的典型样地数据,选取12个可测指标并分为3类,即林木距离指标(简单竞争指标、竞争指标ME、竞争指标A、竞争木株数控制指标)、林木树冠指标(生长空间指数、生长空间竞争指数、伸展度、圆满度、投影比)和林木相对大小指标(相对胸径、相对树高、相对冠幅)进行信度检验和效度分析,并通过构建结构方程模型从总体层面对这3类林木竞争指标进行评价。结果显示:林木距离竞争指标的变幅较大、离散程度适中且一致,在结构方程中具有较为一致的显著正相关影响效用,林木距离指标的信度和效度最高,表明内在一致性最强且能够最真实地反映林木竞争状况;林木树冠各竞争指标离散程度和影响度差异较大,信度和效度相对较低,表明冠幅竞争指标的一致性、反映林木竞争状况的真实性较低,而且受到林木距离指标的影响;林木相对大小各竞争指标的变幅、离散程度、影响效用、信度和效度的变化介于林木距离指标和林木树冠指标之间,而且受到林木距离指标和林木树冠指标的影响。由此可知,与林木距离有关的竞争指标较为稳定和可靠,与林木相对大小有关的竞争指标次之,与林木树冠有关的竞争指标波动性较大。Abstract: In order to investigate the relationships between various competition indices and their effects on forest structure, 12 different tree competition indices were selected and divided into three categories: tree distance, tree crown and tree relative size indices. The analysis was based on data from a field plot of a spruce-fir mixed broadleaf-conifer forest in the Changbai Mountain area. Statistical analysis involving a structural equation model (SEM) was used to evaluate the reliability and validity of these three categories of competition indices. The results show that tree distance indices show greater variation, while dispersion degrees are moderate and consistent. Correlation effects in the structural equation model are significantly and consistently positive. Our reliability analysis and a validity analysis reveal that tree distance indices exhibit superior internal consistency and the greatest potential to reflect the real tree competition. Tree crown indices show a high degree of variability and the reliability and validity values are the lowest. The tree crown indices were also correlated with the tree distance indices. The performance of the tree relative size indices, regarding variability, degree of dispersion, correlation effects, reliability and validity are between the tree distance and tree crown indice performances. The tree relative size indices are related to distance and crown indices. The conclusion is that tree distance-dependent competition indices are more stable and reliable, tree size-related indices are in second place, while tree crown-related competition indices are rather volatile, which can be expected as tree crowns are usually measured with error.
-
-
[1] 陶岩,殷秀琴,田育红,等.长白山红松针阔混交林种内、种间竞争关系研究[J].北京师范大学学报:自然科学版,2011,47(4):428-431. [1] TAO Y, YIN X Q, TIAN Y H, et al.Study on intraspecific and interspecific competition of Pinus koraiensis broadleaf mixed forest in Changbai Mountain[J]. Journal of Beijing Normal University:Natural Science,2011,47(4):428-431.
[2] 方坚,王孝安,郭华,等.黄土高原马栏林区辽东栎林种内、种间竞争研究[J].西北植物学报,2007,27(2):334-339. [2] FANG J, WANG X A, GUO H, et al.Intraspecific and interspecific competition of Quercus liaotungensis in Malan forest region of loess plateau[J]. Acta Botanica Boreali-Occidentalia Sinica,2007,27(2):334-339.
[3] LIN Y M, CUI P, GE Y G, et al. Intraspecific competition of Leucaena leucocephala plantation in the area of high frequency debris flow: taking the Jiangjiagou gully as an example[J]. Journal of Beijing Forestry University,2008,30(3):13-17.
[3] 林勇明,崔鹏,葛永刚,等.泥石流频发区人工恢复新银合欢林种内竞争:以云南东川蒋家沟流域为例[J].北京林业大学学报,2008,30(3):13-17. [4] 师静,李任波,卢萍.昆明地区针叶混交林林木竞争指标研究[J].内蒙古林业调查设计,2010,33(1):27-28,89. [4] SHI J, LI R B, LU P.Forest competitive index of coniferous mixed forest in Kunming area[J]. Inner Mongolia Forestry Investigation and Design,2010,33(1):27-28,89.
[5] 孟宪宇.测树学[M].北京:中国林业出版社,2006. [5] MENG X Y.Forest mensuration[M]. Beijing: China Forestry Publishing House,2006.
[6] 杨澄,黄汉民,张新友.油松幼龄林竞争指标的初步研究[J].陕西林业科技,1996(3):32-36. [6] YANG C, HUANG H M, ZHANG X Y. Preliminary study on the competitive index in young Pinus tabulaeformis forest[J]. Shaanxi Forest Science and Technology,1996(3):32-36.
[7] 关毓秀,张守攻.竞争指标的分类及评价[J].北京林业大学学报,1992,14(4):1-8. [7] GUAN Y X, ZHANG S G.A classification and comparison of competition indices[J]. Journal of Beijing Forestry University,1992,14(4):1-8.
[8] 关玉秀,张守攻.竞争指标的分类及评价[J].北京林业大学学报,1992,14(2):1-8. [8] GUAN Y X, ZHANG S G. A classification and comparison of competition indices[J]. Journal of Beijing Forestry University,1992,14(2):1-8.
[9] 王政权,吴巩胜,王军邦.利用竞争指标评价水曲柳落叶松种内种间空间关系[J].应用生态学报,2000,11(5):641-645. [9] WANG Z Q, WU G S, WANG J B. Application of competition index in assessing intraspecific and interspecific spatial relations between Manchurian ash and Dahurian larch[J]. Chinese Journal of Applied Ecology,2000,11(5):641-645.
[10] 李顺会,白新荣.结构方程模型概述[J]. 沿海企业与科技,2009(12):40-42. [10] LI S H, BAI X R. A summary of structural equation model[J]. Coastal Enterprises and Science and Technology,2009(12):40-42.
[11] FANG M, SUN Y.Several problems on the applications of structural equation model[J]. Chinese Journal of Health Statistics,2006,23(2):184-187.
[11] 方敏,孙影.结构方程模型应用的几个问题[J]. 中国卫生统计,2006,23(2):184-187. [12] HOU J T, WEN Z L, CHENG Z J. Structural equation model and its applications[M].Beijing: Educational Science Publinshing House,2004.
[12] 侯杰泰,温忠麟,成子娟.结构方程模型及其应用[M].北京:教育科学出版社,2004. [13] 吴明隆.结构方程模型:AMOS的操作与应用[M].重庆:重庆大学出版社,2010:2-53. [13] WU M L. Structural equation model:manipulation and application of AMOS[M]. Chongqin: Chongqing University Press,2010:2-53.
[14] MUELLER R O. Structural equation modeling: back to basics [J]. Structural Equation Modeling,1997,4(4):53-369
[14] LI H Z. Research methodology for management[M].Xi’an: Xi’an Jiaotong University Press,2004.
[15] 李怀祖.管理研究方法论[M].西安:西安交通大学出版社,2004. [15] XU M M.Study on structural equation modeling using in the analysis of forest stand growth[D].Beijing: Beijing Forestry University,2010:22-33.
[16] 徐咪咪.异龄林林分生长的结构方程模型分析研究[D].北京:北京林业大学,2010:22-33. [16] LIU D. Research on the impact factor analysis of forest ecosystem service function based on the structural equation modeling[D].Beijing: Beijing Forestry University,2012:28-47.
[17] 刘丹.基于SEM的森林生态系统服务功能影响因素实证研究[D].北京:北京林业大学,2012:28-47. [17] WANG S L, ZHOU J P.Coupling relationship between stand growth and impacting factors based on structural equation model[J]. Journal of Beijing Forestry University,2014,36(5):7-12.
[18] 王树力,周健平.基于结构方程模型的林分生长与影响因子耦合关系分析[J].北京林业大学学报,2014,36(5):7-12. [18] HUANG J R, WAN Z M.The study on distance-dependent models of individual tree in Pinus massoniana plantation[J].Journal of Mountain Agriculture and Biology,2000,19(1):10-15.
[19] 黄家荣,万兆溟.马尾松人工林与距离有关的单木模型研究[J].山地农业生物学报,2000,19(1):10-15. [19] JIANG X D, CHEN X W, LIN J J. The individual tree growth model based on the growth theory of Von Bertalanffy[J]. Central South Forest Inventory and Planning,1994(4):5-7.
[20] HEGYI F. Growth models for tree and stand simulation[C]. Stockholm: Sweden Royal College of Forest,1974:74-90.
[20] DIAO J, GUO H, LEI X D, et al.Application of functional-structural model in tree competition[J]. World Forestry Research,2013,26(2):30-35.
[21] MARTIN G L, EK A R. A comparison of competition measures and growth models for predicting plantation red pine diameter and height growth [J]. Forest Science,1984,30(3):731-743.
[21] ZHANG C C, LI F R, ZHAO Y H.Discussion on optimization of forest spatial structure of Larixo lgensis plantation[J]. Bulletin of Botanical Research,2008,28(5):632-636,640.
[22] SMITH S H, BELL J F. Using competitive stress index to estimate diameter growth for thinned Donglas-fir stands [J]. Forest Science,1983,29(3):491-499.
[22] MA L Y, WANG X Q.Growth space competition index(GSCI)and application in the individual intraspecies competition of Pinus tabulaeformis and Platycladus orientalis forests[J]. Ecologic Science,2006,25(5):385-389.
[23] TAO J J. Media and city soft power:based on the research of structural equation model[D].Shanghai: Fudan University,2009.
[23] 江希钿,陈学文,林纪建. 以Von Bertalanffy生长理论为基础的单木生长模型[J]. 中南林业调查规划,1994(4):5-7. [24] BIGING G S, DOBBERTIN M. Evaluation of competition indices in individual models [J]. Forest Science,1995,41(2): 360-377.
[24] LIU Q Z. The construction of job evaluation model in power enterprise and the research of evaluation methods[D].Chengdu: Southwest Jiaotong University,2007.
[25] YU J Y, HE X H.Data statistical analysis and SPSS application[M].Beijing: Post and Telecom Press,2003.
[25] 刁军,国红,雷相东,等.结构功能模型在林木竞争研究中的应用[J].世界林业研究,2013,26(2):30-35. [26] XU B Y. Application of structural equation models in medicine[D].Chengdu: Sichuan University,2004:135-146.
[26] ARNEY J D. An individual tree model or stand simulation in Douglas-fir[C]∥Growth models for tree and stand simulation. Stockholm: Sweden Royal College of Forestry,1974:38-46.
[27] 张成程,李凤日,赵颖慧.落叶松人工林空间结构优化的探讨[J].植物研究,2008,28(5):632-636,640. [27] YAN B N, LIU S M, WANG C. Empirical study of the relationship between intelligence analysis and cognitive bias based structural equation model[J]. Information Studies: Theory and Application,2014,37(1):79-83.
[28] 马履一,王希群.生长空间竞争指数及其在油松、侧柏种内竞争中的应用研究[J].生态科学,2006,25(5):385-389. [28] MIAO Z M, YU S E, LU B, et al. Relationships of ‘water requirement-photosynthesis-production’ for paddy rice using structural equation modeling[J]. Transactions of the Chinese Society of Agricultural Engineering,2013,29(6):91-98.
[29] ZHAO J H. Growth modeling for spruce-fir forest in Changbai Mountain[D].Beijing: Beijing Forest University,2010:15-16.
[29] 陶建杰.传媒与城市软实力:基于结构方程模型的研究[D].上海:复旦大学,2009. [30] HU W L. Study on the structural of spruce-fir mixed stands in the over-logged forest of Changbai Mountains[D].Beijing: Beijing Forest University
[30] CRONBACH L J. Coefficient alpha and internal: structural of tests[J]. Psychometrika,1951,16(3):297-334.
[31] FALMER S. Assessment of the multitrait-multimethod matrix validity of Likert scales via confirmatory factory analysis[J].Multivariate Behavioral Research,1983,18(3):275-308.
[31] SHEN L, YANG H, KANG X G, et al. Effects of selective cutting intensity on spatial distribution pattern of natural spruce-fir forests[J]. Journal of Central South University of Forestry and Technology,2013,33(1):68-74.
[32] 刘琼贞.电力企业岗位评价模型的构建及评价方法研究[D].成都:西南交通大学,2007. [32] CHEN G, DAI L M, ZHOU L. Structure of stand and canopy characteristics of disturbed communities of broadleaved Pinus koraiensis forest in Changbai Mountain[J]. Chinese Journal of Ecology,2004,23(5):116-120.
[33] JIN Z X, ZHANG W B. The quantitative relation of intraspecific and interspecific competition in endangered plant Heptacodium miconioides[J]. Bulletin of Botanical Research,2004,24(1):53-58.
[33] 余建英,何旭宏.数据统计分析与SPSS应用[M].北京:人民邮电出版社,2003. [34] 许碧云.结构方程模型在医学研究中的应用[D].成都:四川大学,2004:135-146. [34] HUI G Y, HU Y B, ZHAO Z H, et al. A forest competition index based on intersection angle[J]. Scientia Silvae Sinicae,2013,49(6):68-73.
[35] 严贝妮,刘书曼,汪聪.基于结构方程模型的情报分析与认知偏差关系的实证研究[J].情报理论与实践,2014,37(1):79-83. [35] SHEN C C, LEI X D, WANG F Y, et al. Competitive states in natural middle-aged forest of Mongolian oak at Jincang Forest Farm[J]. Forest Research,2012,25(3):339-345.
[36] 缪子梅,俞双恩,卢斌,等.基于结构方程模型的控水稻“需水量光合量产量”关系研究[J].农业工程学报,2013,29(6):91-98. [36] XIN Y Y, WEI X L. Dominance in a mixed conifer and broadleaved forest of Qingshan Lake[J]. Journal of Zhengjiang Agriculture and Forest University,2011,28(4):601-606.
[37] 赵俊卉.长白山云冷杉混交林生长模型的研究[D].北京:北京林业大学,2010:15-16. [38] 胡文力.长白山过伐林区云冷杉针阔混交林林分结构的研究[D].北京:北京林业大学,2003:36-42. [39] 沈林,杨华,亢新刚,等.择伐强度对天然云冷杉林空间分布格局的影响[J].中南林业科技大学学报,2013,33(1):68-74. [40] 陈高,代力民,周莉.受干扰长白山阔叶红松林林分组成及冠层结构特征[J].生态学杂志,2004,23(5):116-120. [41] 金则新,张文标.濒危植物七子花种内与种间竞争的数量关系[J].植物研究,2004,24(1):53-58. [42] 惠刚盈,胡艳波,赵中华,等.基于交角的林木竞争指数[J].林业科学,2013,49(6):68-73. [43] BRISTOW M, VANCALY J K, BROOKS L, et al. Growth and species interactions of Eucalyptus pellita in a mixed and monoculture plantation in the humid tropics of north Queensland[J]. Forest Ecology and Management,2006,233(2):285-294.
[44] 沈琛琛,雷相东,王福有,等.金苍林场蒙古栎天然中龄林竞争关系研究[J].林业科学研究,2012,25(3):339- 345. [45] MICHAEL W, BRUCE B. Distance-dependent and distance-independent models of Douglas-fir and western Hemlock basal area growth following silvicultural treatment [J]. Forest Ecology and Management,1996,89(1-3):1-11.
[46] THOMAS L, OTTO E. A method to attain uniform resolution of the competition variable Basal-Area-in-Larger trees (BAL) during forest growth projections of small plots[J]. Forest Ecology and Management,2004,171(1-2):195-206.
[47] DANICLE C, GIORGIO V, EMANUCEL L, et al. Analysis of intraspecific competition in two subalpine Norway spruce stands in Paneveggio[J]. Forest Ecology and Management,2008,255(3-4):651-659.
[48] 辛营营,韦新良.青山湖针阔混交林优势树种竞争的数量研究[J].浙江农林大学学报,2011,28(4):601-606. -
期刊类型引用(5)
1. 杜宇，杨华，贺丹妮，陈庆国，张晓红. 邻近木多样性与竞争对天然云冷杉林树木生长的影响. 北京林业大学学报. 2024(08): 111-121 . 
本站查看
2. 杜秀芳，汤孟平，潘建勇，沈钱勇，杨帆. 临安区不同森林类型竞争指数比较研究. 生态学报. 2020(12): 4064-4072 . 百度学术
3. 范慧涛，李杨，谷建才. 木兰围场油松、华北落叶松混交林空间结构对直径生长的影响. 林业与生态科学. 2018(04): 373-380 . 百度学术
4. 陈永辉，张晓丽，刘会玲，王书涵. 甘肃大野口青海云杉距离加权大小比竞争指数研究. 北京林业大学学报. 2017(02): 40-48 . 本站查看
5. 任玫玫，杨华. 长白山云冷杉林优势树种的竞争. 应用生态学报. 2016(10): 3089-3097 . 百度学术
其他类型引用(15)
计量
- 文章访问数: 2240
- HTML全文浏览量: 202
- PDF下载量: 85
- 被引次数: 20
下载:
