Diameter Structural Distribution of Coniferous Broad-leaved Mixed Forest in Taxus cuspidate Habitat in Changbai Mountain

doi:10.7525/j.issn.1673-5102.2021.01.012

Abstract

Abstract:

This research aimed at the management of Taxus cuspidate stand by selecting suitable models for imitating diameter structural distribution of coniferous broad-leaved mixed forest in T.cuspidate stand， Changbai Mountain Nature Reserve. On the basis of 15 coniferous broad-leaved mixed forest in T.cuspidate stands in Longhuanggou Forest Farm， Changbai Mountain Nature Reserve， negative exponential model， three-parameter Weibull model and χ² test were used to analyze the diameter structural distribution of 15 plots. The density of 15 plots was 400-981 trees·hm^-2， and the mean DBH was 10.5-19.9 cm. The skewness of all plots was positive， which showed the diameter distribution function curves was partial to left. The three-parameter Weibull distribution model was better for the diameter distribution of the 9-11 plots， while negative exponential model was suitable for other plots. The irregular diameter distribution can be fitted better by three-parameter Weibull model， while the inverse J-shaped curves can be fitted well by negative exponential model. It showed that the diameter structure of coniferous broad-leaved mixed forest of Taxus cuspidate stand in the study area were not reasonable， and the management of T.cuspidate stand should be strengthened.

Key words: Taxus cuspidate, coniferous broad-leaved mixed, diameter structure, negative exponential model, three-parameter Weibull model, χ²test

CLC Number:

S791.49

Xiao-Hong FAN, Li-Tao WANG, Juan-Yan AN, Dong MENG, Qing YANG, Chun-Jian ZHAO, Yu-Chun YANG, Yu-Jie FU. Diameter Structural Distribution of Coniferous Broad-leaved Mixed Forest in Taxus cuspidate Habitat in Changbai Mountain[J]. Bulletin of Botanical Research, 2021, 41(1): 89-97.

Figures/Tables 6

Table 1

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Table 3

Fig.1

Table 4

Fig.2

References 20

1	孟宪宇.测树学：2版［M］.北京：中国林业出版社，2008：73-86.
	Meng X Y.Forest mensuration：2^nd ed［M］.Beijing：China Forestry Press，2008：73-86.
2	龚直文，亢新刚，杨华，等.长白山杨桦次生林直径结构研究［J］.西北林学院学报，2009，24（3）：1-6.
	Gong Z W，Kang X G，Yang H，et al.Diameter structure of polar-birch secondary forests in Changbai mountain［J］.Journal of Northwest Forestry University，2009，24（3）：1-6.
3	铁牛.长白落叶松人工林林分直径分布研究［J］.林业资源管理，2014，36（6）：95-98，109.
	Tie N.Simulation model of stand diameter structure for planted Larix olgensis forest［J］.Forest Resources Management，2014，36（6）：95-98，109.
4	单振明，王鲲.樟子松人工林林分直径分布规律的研究［J］.林业科技情报，2013，45（1）：36-37.
	Shan Z M，Wang K.Study on the regularity of diameter distribution of Pinus Sylvestris plantation［J］.Forestry Science and Technology Information，2013，45（1）：36-37.
5	朱光玉，康立.桤木幼龄林直径结构规律分析［J］.湖南林业科技，2016，43（5）：1-6.
	Zhu G Y，Kang L.Analysis of diameter structure regularities of the young alder［J］.Hunan Forestry Science & Technology，2016，43（5）：1-6.
6	孙拥康，汤景明，覃发高，等.鄂西南武陵山区马尾松天然次生林的林分直径结构分析［J］.西部林业科学，2017，46（4）：88-92，100.
	Sun Y K，Tang J M，Tan F G，et al.Diameter structure of natural secondary forest of Pinus massoniana in Wuling mountainous area in southwest Hubei Province［J］.Journal of West China Forestry Science，2017，46（4）：88-92，100.
7	王国宏，巴哈达·我肯，蔡尤健.永仁县云南松林分直径结构变化分析［J］.现代农业科技，2018（18）：138-139，144.
	Wang G H，Bahada W，Cai Y J.Analysis on changes of diameter structure of Pinus yunnanensis in Yongren County［J］.Modern Agricultural Science and Technology，2018（18）：138-139，144.
8	吴文君，胥辉，黄明泉，等.思茅松天然成熟林林分直径结构及环境解释［J］.中南林业科技大学学报，2018，38（6）：41-49.
	Wu W J，Xu H，Huang M Q，et al.Stand diameter structure and environmental explanation for Pinus kesiya var.langbianensis natural mature forests［J］.Journal of Central South University of Forestry&Technology，2018，38（6）：41-49.
9	Kang H B，Zheng Y Y，Liu S T，et al.Population structure and spatial pattern of predominant tree species in a pine-oak mosaic mixed forest in the Qinling Mountains，China［J］.Journal of Plant Interactions，2017，12（1）：78-86.
10	李晓慧，陆元昌，袁彩霞，等.六盘山林区林分直径分布模型研究［J］.内蒙古农业大学学报：自然科学版，2006，27（4）：68-72.
	Li X H，Lu Y C，Yuan C X，et al.The study on stand stem numbe-diameter distribution in forest district of Liupan Mountains［J］.Journal of Inner Mongolia Agricultural University：Natural Science Edition，2006，27（4）：68-72.
11	巢林，洪滔，林卓，等.中亚热带杉阔混交林直径分布研究［J］.中南林业科技大学学报，2014，34（9）：31-37.
	Chao L，Hong T，Lin Z，et al.Study on diameter distribution of Chinese fir and broad-leaved forest in mid-subtropical［J］.Journal of Central South University of Forestry & Technology，2014，34（9）：31-37.
12	王艳洁，郑小贤.金沟岭林场云冷杉过伐林林分直径结构的研究［J］.林业资源管理，2008，30（6）：71-74.
	Wang Y J，Zheng X X.Study on diameter structure of over-cut spruce-fir forest in Jingouling forest farm［J］.Forest Resources Management，2008，30（6）：71-74.
13	肖化顺，刘玉，刘发林.东北林区臭松次生林直径结构规律研究［J］.林业资源管理，2014，36（2）：83-86，114.
	Xiao H S，Liu Y，Liu F L.Study on diameter structure of secondary forest of Abies nephrolepis in the Northeast Forest Area［J］.Forest Resources Management，2014，36（2）：83-86，114.
14	Diamantopoulou M J，Özçelik R，Crecente-Campo F，et al.Estimation of Weibull function parameters for modelling tree diameter distribution using least squares and artificial neural networks methods［J］.Biosystems Engineering，2015，133：33-45.
15	Zhang L J，Gove J H，Liu C M，et al.A finite mixture of two Weibull distributions for modeling the diameter distributions of rotated-sigmoid，uneven-aged stands［J］.Canadian Journal of Forest Research，2001，31（9）：1654-1659.
16	王香春，张秋良，春兰，等.大青山落叶松人工林直径分布规律的研究［J］.山东农业大学学报：自然科学版，2011，42（3）：349-355.
	Wang X C，Zhang Q L，Chun L，et al.Study on the Larix principis-rupprechtii Mayr plantations diameter distribution in Daqingshan［J］.Journal of Shandong Agricultural University：Natural Science，2011，42（3）：349-355.
17	Jaworski A，Podlaski R.Modelling irregular and multimodal tree diameter distributions by finite mixture models：an approach to stand structure characterisation［J］.Journal of Forest Research，2012，17（1）：79-88.
18	杜志.长白山退化云冷杉林不同演替阶段的林分结构研究［D］.北京：北京林业大学，2013.
	Du Z.Study on stand structure during different succession stages in degraded spruce-fir forests of Changbai Moutains［D］.Beijing：Beijing Forestry University，2013.
19	Mehtätalo L，Gregoire T G，Burkhart H E.Comparing strategies for modeling tree diameter percentiles from remeasured plots［J］.Environmetrics，2008，19（5）：529-548.
20	马炜，孙玉军.三种直径分布拟合模型在长白落叶松林分的实际应用［J］.生物数学学报，2012，27（3）：548-554.
	Ma W，Sun Y J.Modeling of stand diameter structure of Larix olgensis plantations［J］.Journal of Biomathematics，2012，27（3）：548-554.

样地 Sample plots	径阶 Diameter class(cm)	树种组成 Species composition	样地 Sample plots	径阶 Diameter class(cm)	树种组成 Species composition
1	2	10红豆杉		24	5红3紫2水
	4	10红豆杉	10	18	4红3花1鱼1榆1臭
	6	4臭3千2红1沙		22	7红3紫
2	6	6臭3红1红		24	4红2色2臭2杨
3	60	10红豆杉	11	10	3红3花2红1臭1鱼
4	12	2杨1红1枫1臭1紫1假1柞1青1暴		12	3红2臭1假1紫1青1花1色
	14	2红2杨2柞2白1假1暴		14	6红3假1花
	16	3杨2臭1红1假1柞1鱼1白		16	4红2假1臭1花1红1水
	18	4臭2红2杨2柞	12	16	3红2青2臭2榆1花
5	18	2红2柞2假2青2鱼	13	18	4红2紫2臭2鱼
6	22	7红3假	13	20	5红3紫2沙
7	14	9红1花	14	12	5红3花1假1青
	16	5红3臭1水1柞		14	6红2青11千
	18	9红1臭		16	10红豆杉
8	10	3红3水2花1紫1假		18	10红豆杉
	12	2红2花2水1鱼1假1臭1色		20	7红2紫1假色
	14	5红2紫2花1青		26	8红2枫
	16	4红2花2假1柞1水	15	18	7红3臭
9	18	5花2红2榆1臭		20	3青3红1臭1假1枫1黄
	20	5花3红2青		22	4红2鱼2臭2紫
	22	5红4鱼1紫		24	3鱼3红3假1臭

样地 Sample plots	坡度 Slope	坡向 Aspect	红豆杉株数 Number of Taxus	总株数 Number of trees	密度 (株·hm^-2) Density	平均胸径 Mean DBH (cm)	标准差 Standard deviation	变动系数 Coefficient of variation	断面积 Basal area (m²·hm^-2)	偏度 Skewness	峰度 Kurtosis
1	缓斜坡Gentle slope	半阴Half shade	35	146	919	10.5	7.93	0.76	12.49	0.40	-0.69
2	缓斜坡Gentle slope	半阴Half shade	2	76	475	19.7	12.42	0.63	20.24	1.00	1.39
3	斜坡Slope	阴Shade	1	73	456	19.9	14.97	0.75	22.22	0.48	-0.38
4	缓平地Flat ground	半阳Half sun	8	157	981	12.7	6.77	0.53	15.96	0.21	-0.88
5	斜坡Slope	半阳Half sun	4	99	619	16.2	12.81	0.79	20.73	0.65	-0.05
6	斜坡Slope	阴Shade	5	75	469	17.5	16.25	0.93	21.00	1.01	0.09
7	缓地Gentle ground	阴Shade	27	81	506	19.4	10.05	0.52	18.98	1.23	1.77
8	陡坡Steep slope	半阴Half shade	18	111	694	14.1	9.68	0.69	15.94	0.90	0.20
9	斜坡Slope	半阴Half shade	10	74	463	16.6	8.01	0.48	12.34	0.19	-0.91
10	陡坡Steep slope	阴Shade	11	69	431	18.6	12.39	0.67	16.92	2.44	7.59
11	陡坡Steep slope	阴Shade	16	64	400	15.8	9.64	0.61	10.76	0.79	0.93
12	斜坡Slope	半阴Half shade	6	84	525	15.3	10.09	0.66	13.85	0.22	-0.94
13	缓斜坡Gentle slope	阴Shade	9	123	769	15.0	10.31	0.69	20.00	0.47	-0.39
14	斜坡Slope	阴Shade	35	92	575	17.5	11.98	0.69	20.31	1.52	3.35
15	斜坡Slope	半阳Half sun	14	79	494	18.3	11.53	0.63	18.15	0.70	-0.62

样地 Sample plots	负指数模型 Negative exponential model		三参数Weibull模型 Three parameters Weibull model
样地 Sample plots	a	b	a	b	c
1	26.10	0.07	5	7.17	0.98
2	7.06	0.03	5	17.02	1.18
3	15.47	0.07	5	14.30	0.93
4	66.18	0.12	5	8.48	0.98
5	41.35	0.12	5	9.38	0.73
6	30.34	0.12	5	9.95	0.73
7	13.06	0.06	5	16.21	0.98
8	43.41	0.11	5	9.11	0.39
9	11.16	0.05	5	13.05	1.43
10	8.47	0.03	5	14.74	1.53
11	13.09	0.06	5	9.20	1.98
12	24.46	0.10	5	10.10	1.03
13	20.03	0.06	5	9.32	0.88
14	17.21	0.06	5	13.50	1.13
15	11.78	0.05	5	15.97	1.08

样地 Sample plots	负指数模型 Negative exponential model				三参数Weibull模型 Three parameters Weibull model
样地 Sample plots	Bias	Rmse	χ²	P值 P-value	Bias	Rmse	χ²	P值 P-value
1	0.33	1.18	7.15	0.40	0.40	1.10	9.90	0.37
2	0.00	1.35	3.75	0.98	0.18	1.35	8.84	0.32
3	0.25	1.16	12.21	0.10	0.29	1.24	11.13	0.64
4	0.00	3.14	6.85	0.23	0.31	3.25	12.11	0.16
5	0.48	2.80	31.15	0.00	0.62	2.32	21.81	0.01
6	0.43	1.89	30.76	0.00	0.48	1.41	17.92	0.00
7	0.09	2.59	12.00	0.22	0.46	2.41	18.58	0.10
8	0.22	2.00	10.85	0.00	0.44	1.80	12.70	0.07
9	-0.06	2.93	9.60	0.07	0.13	2.65	9.38	0.32
10	0.00	2.06	0.19	0.53	0.12	1.33	18.06	0.74
11	-0.06	2.98	9.43	0.05	0.35	1.65	59.07	0.00
12	0.17	1.72	12.24	0.01	0.11	1.76	12.40	0.00
13	0.63	1.75	24.14	0.00	0.05	1.67	12.49	0.12
14	0.05	1.53	6.27	0.85	0.15	1.50	11.60	0.00
15	0.00	1.56	4.70	0.91	0.58	1.76	14.99	0.51