Individual Crown Width Prediction Models and Accuracy Appraisal for Platycladus orientalis Plantation in Low Mountainous Area

doi:10.13466/j.cnki.lyzygl.2014.02.011

FOREST RESOURCES WANAGEMENT ›› 2014›› Issue (2): 52-57.doi: 10.13466/j.cnki.lyzygl.2014.02.011

• Scientific Research • Previous Articles Next Articles

Individual Crown Width Prediction Models and Accuracy Appraisal for Platycladus orientalis Plantation in Low Mountainous Area

LIU Ping^1,2, WANG Yutao¹, MA Lüyi²

1. Shenyang Agricultural University,Shenyang 110161,China;
2. Beijing Forestry University,Beijing 100083,China

Received:2014-02-17 Revised:2014-04-21 Online:2014-04-28 Published:2020-12-09

Abstract

Abstract: Individual crown width growth models for Platycladus orientalis plantation in Beijing low mountain area were established by linear regression model,multiple linear regression model and other models in accordance with data measured from 89 sample plots.The results show that the crown distribution range of Platycladus orientalis plantation in low mountain sunny slope is larger than that of shady slope,and the average crown width is significantly higher than that of shady slope.The forecast accuracy of multiple linear regression model is highest,the R² values are 0.751 and 0.770 respectively.T test of the multiple linear regression model reveals that the actual value is fitted well with the predicted value.The results could be applied to the crown width growth forecast of Platycladus orientalis plantations in Beijing low mountainous regions to provide a theoretical basis for the scientific management of Platycladus orientalis plantation.

Key words: Platycladus orientalis plantation, individual crown width models, accuracy appraisal

CLC Number:

S758
S791.38

LIU Ping, WANG Yutao, MA Lüyi. Individual Crown Width Prediction Models and Accuracy Appraisal for Platycladus orientalis Plantation in Low Mountainous Area[J]. FOREST RESOURCES WANAGEMENT, 2014, (2): 52-57.

References

[1]马履一,王希群,甘敬,等.北京市森林经营的基本原则刍议[J].北京林业大学学报,2006,28(4):159-163.
[2]段劼,马履一,薛康,等.北京地区侧柏人工林单木胸径生长模型的研究[J].林业资源管理,2010(2):62-68.
[3]Kramer H.Crown development in conifer stands in Scotland as influenced by initial spacing and subsequent thinning treatment[J].Forestry,1996,39(1):40-59.
[4]Biging G S,Dobbertin M.A comparison of distance dependent competition measures for height and basal area growth of individual conifer trees[J].Forest Science,1992,38(3):695-720.
[5]刘平,马履一,贾黎明,等.油松、侧柏树冠复合指标模型的建立及其对林分健康性的评价[J].东北林业大学学报,2009,37(3):32-35.
[6]Marshall D D,Johnson G P,Hann D W.Crown profile equations for stand grown western hemlock trees in northwestern Oregon[J ].Can J For Res.,2003,33(11):2059-2066.
[7]Mark R,Victor J L,Uldis S.Stand structure governs the crown collisions of lodgeple pine[J].Canadian journal of forest research,2003,33(7):1238-1244.
[8]刘平,马履一,贾黎明,等.美国的森林植被模型[J].世界林业研究,2006,19(5):63-66.
[9]Dawkins H C.Crown diameters:theri relaion to bole diameter in tropic forest trees[J]. Commonw. For.Rev.,1963,42(4):318-333.
[10]Hetherington J C.Crown diameter:Stem diameter relations in managed stands of Sitka spruce[J].Commonw.For.Rev.,1967,46(3):278-281.
[11]Bechtold W A.Crown diameter prediction models for 87 species of stand grown trees in the Eastern United States[J].Southern journal of applied forestry,2003,27(4):269-278.
[12]Sonia C,Hubert S.Derivation of compatible crown width equations for some important tree species of Spain[J].Forest ecology and management,2005,217:203-218.
[13]Bechtold W A,Mielke M E,Zarnocii S J.Comparison of field methods and models to estimate mean crown diameter[J].North Journal of Applied Forest,2002,19(4):177-182.
[14]Bragg D C.A local basal area adjustment for crown width prediction[J].North Journal of Applied Forest,2001,18(1):22-28.
[15]陈英,杨华,李伟,等.北京地区侧柏人工林标准木生长过程研究[J].西北林学院学报,2012,27(5):153-157.
[16]刘平,马履一,贾黎明,等.侧柏人工林树冠率的Weibull 分布及动态预测[J].西北林学院学报,2008,23(6):194-198.

Individual Crown Width Prediction Models and Accuracy Appraisal for Platycladus orientalis Plantation in Low Mountainous Area

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 1

Recommended Articles

Metrics

Comments