FOREST RESOURCES WANAGEMENT ›› 2022›› Issue (1): 8-17.doi: 10.13466/j.cnki.lyzygl.2022.01.002
• Scientific Research • Previous Articles Next Articles
QING Dongsheng1,2,3(
), PENG Jinxiang2, LI Jianjun1(
), DENG Qiaoling2, LIU Shuai1
Received:2021-12-01
Revised:2021-12-29
Online:2022-02-28
Published:2022-03-31
Contact:
LI Jianjun
E-mail:673390302@qq.com;390033868@qq.com
CLC Number:
QING Dongsheng, PENG Jinxiang, LI Jianjun, DENG Qiaoling, LIU Shuai. Autocorrelation Analysis of Quantitative Index of Stand Spatial Structure Based on Moran's I[J]. FOREST RESOURCES WANAGEMENT, 2022, (1): 8-17.
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URL: https://www.lyzygl.com.cn/EN/10.13466/j.cnki.lyzygl.2022.01.002
Tab.1
The main tree species in the study area
| 样地区域 | 主要树种 |
|---|---|
| 大围山(D1-D5) | 马尾松(Pinus massoniana Lamb)、青冈栎(Cyclobalanopsis glauca(Thunb.)Oerst.)、香樟(Cinnamomum camphora(Linn)Presl)、杉木(Cunninghamia lanceolata,Taxodiaceae)、及黄山松(Pinus taiwanensis Hayata)等 |
| 龙虎山(L1-L5) | 苦槠(Castanopsis sclerophylla)、构树(Broussonetia papyrifera, Moraceae)、杉木(Cunninghamia lanceolata,Taxodiaceae)、香樟(Cinnamomum camphora(Linn)Presl)、马尾松(Pinus massoniana Lamb)等 |
| 芦头林场(LT1-LT5) | 杉木(Cunninghamia lanceolata,Taxodiaceae)、马尾松(Pinus massoniana Lamb)、甜槠(Castanopsis eyrei(Champ.Ex Benth.)Tutch)及青冈栎(Cyclobalanopsis glauca(Thunberg)Oersted)等 |
| 青石岗林场(Q1-Q5) | 木荷(Schima superba Gardn.et Champ,Theaceae Mirb.)、杉木(Cunninghamia lanceolata,Taxodiaceae)及马尾松(Pinus massoniana Lamb)等 |
| 乌云界(W1-W5) | 甜槠(Castanopsis eyrei(Champ.ex Benth.))、杉木(Cunninghamia lanceolata,Taxodiaceae)、青冈栎(Cyclobalanopsis glauca(Thunb.)Oerst.)及香樟(Cinnamomum camphora(Linn)Presl)等 |
Tab.2
Forest survey status in the study area
| 样地区域 | 样地编号 | 样地名称 | 样地株数/株 | 平均胸径/m | 平均树高/m | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 大围山 | 1 | D1 | 50 | 0.36 | 14.06 | ||||||
| 2 | D2 | 47 | 0.41 | 13.98 | |||||||
| 3 | D3 | 39 | 0.35 | 12.94 | |||||||
| 4 | D4 | 44 | 0.36 | 13.75 | |||||||
| 5 | D5 | 57 | 0.33 | 13.02 | |||||||
| 龙虎山 | 6 | L1 | 65 | 0.24 | 10.83 | ||||||
| 7 | L2 | 63 | 0.28 | 11.04 | |||||||
| 8 | L3 | 56 | 0.37 | 13.64 | |||||||
| 9 | L4 | 59 | 0.32 | 12.28 | |||||||
| 10 | L5 | 49 | 0.29 | 10.83 | |||||||
| 芦头林场 | 11 | LT1 | 50 | 0.21 | 12.14 | ||||||
| 12 | LT2 | 51 | 0.23 | 14.22 | |||||||
| 13 | LT3 | 40 | 0.21 | 10.09 | |||||||
| 14 | LT4 | 45 | 0.30 | 11.02 | |||||||
| 15 | LT5 | 58 | 0.33 | 12.16 | |||||||
| 青石岗 | 16 | Q1 | 50 | 0.33 | 13.16 | ||||||
| 17 | Q2 | 49 | 0.41 | 14.32 | |||||||
| 18 | Q3 | 38 | 0.36 | 12.17 | |||||||
| 19 | Q4 | 44 | 0.33 | 13.28 | |||||||
| 20 | Q5 | 57 | 0.34 | 13.19 | |||||||
| 乌云界 | 21 | W1 | 50 | 0.22 | 11.24 | ||||||
| 22 | W2 | 54 | 0.30 | 12.17 | |||||||
| 23 | W3 | 40 | 0.42 | 14.27 | |||||||
| 24 | W4 | 51 | 0.23 | 12.34 | |||||||
| 25 | W5 | 57 | 0.27 | 10.04 | |||||||
Tab.3
Evaluation criteria for the homogeneity of forest stand spatial structure
| Moran's I的值 | 意义 |
|---|---|
| 大于0( | 表示调研样地林分中对象林木与其相邻木的属性值在空间上呈正相关,在逻辑上表现为聚集分布,且 |
| 小于0( | 表示调研样地林分中对象林木与其相邻木的属性值在空间上呈负相关,在逻辑上表现为离散分布,且 |
| 等于0( | 表示调研样地林分中对象林木与其相邻木在其空间结构对应的属性上呈随机分布。 |
Tab.4
Average quantified index value of forest stand spatial structure in sample plot
| 样地 区域 | 样地 编号 | 样地 名称 | 混交度 | 开阔比数 | 大小比数 | 竞争指数 | 综合评价指标 | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 均值 | 方差 | 均值 | 方差 | 均值 | 方差 | 均值 | 方差 | 均值 | 方差 | ||||||||||||||||||
| 大围山 | 1 | D1 | 0.68 | 0.07 | 0.46 | 0.12 | 1.50 | 0.63 | 0.34 | 0.05 | 0.60 | 0.07 | |||||||||||||||
| 2 | D2 | 0.75 | 0.05 | 0.47 | 0.12 | 3.09 | 21.70 | 0.47 | 0.06 | 0.39 | 0.06 | ||||||||||||||||
| 3 | D3 | 0.72 | 0.06 | 0.45 | 0.11 | 1.93 | 1.84 | 0.56 | 0.10 | 0.53 | 0.04 | ||||||||||||||||
| 4 | D4 | 0.62 | 0.06 | 0.47 | 0.11 | 1.85 | 1.63 | 0.28 | 0.03 | 0.75 | 0.05 | ||||||||||||||||
| 5 | D5 | 0.69 | 0.04 | 0.46 | 0.13 | 1.70 | 1.00 | 0.34 | 0.06 | 0.57 | 0.02 | ||||||||||||||||
| 龙虎山 | 6 | L1 | 0.41 | 0.07 | 0.49 | 0.12 | 1.38 | 0.20 | 0.77 | 0.05 | 0.54 | 0.07 | |||||||||||||||
| 7 | L2 | 0.52 | 0.06 | 0.49 | 0.12 | 1.39 | 0.34 | 0.66 | 0.08 | 0.56 | 0.06 | ||||||||||||||||
| 8 | L3 | 0.63 | 0.10 | 0.49 | 0.12 | 1.81 | 2.49 | 0.19 | 0.03 | 0.73 | 0.08 | ||||||||||||||||
| 9 | L4 | 0.73 | 0.05 | 0.49 | 0.11 | 1.92 | 2.52 | 0.44 | 0.06 | 0.48 | 0.03 | ||||||||||||||||
| 10 | L5 | 0.79 | 0.03 | 0.50 | 0.12 | 1.94 | 1.13 | 0.64 | 0.03 | 0.51 | 0.04 | ||||||||||||||||
| 芦头林场 | 11 | LT1 | 0.73 | 0.11 | 0.51 | 0.12 | 1.72 | 1.06 | 0.40 | 0.04 | 0.60 | 0.10 | |||||||||||||||
| 12 | LT2 | 0.58 | 0.09 | 0.49 | 0.11 | 2.27 | 6.03 | 0.35 | 0.07 | 0.49 | 0.06 | ||||||||||||||||
| 13 | LT3 | 0.81 | 0.03 | 0.47 | 0.12 | 1.99 | 1.99 | 0.51 | 0.09 | 0.61 | 0.02 | ||||||||||||||||
| 14 | LT4 | 0.71 | 0.07 | 0.50 | 0.13 | 2.03 | 1.67 | 0.21 | 0.03 | 0.67 | 0.05 | ||||||||||||||||
| 15 | LT5 | 0.58 | 0.07 | 0.46 | 0.12 | 1.75 | 1.27 | 0.31 | 0.05 | 0.74 | 0.06 | ||||||||||||||||
| 青石岗 | 16 | Q1 | 0.40 | 0.12 | 0.47 | 0.12 | 1.71 | 1.38 | 0.39 | 0.08 | 0.56 | 0.14 | |||||||||||||||
| 17 | Q2 | 0.45 | 0.10 | 0.47 | 0.11 | 2.13 | 2.57 | 0.43 | 0.06 | 0.60 | 0.12 | ||||||||||||||||
| 18 | Q3 | 0.65 | 0.10 | 0.45 | 0.11 | 1.91 | 1.48 | 0.46 | 0.08 | 0.61 | 0.11 | ||||||||||||||||
| 19 | Q4 | 0.70 | 0.08 | 0.50 | 0.12 | 2.05 | 2.33 | 0.26 | 0.04 | 0.54 | 0.08 | ||||||||||||||||
| 20 | Q5 | 0.72 | 0.06 | 0.46 | 0.12 | 1.70 | 1.12 | 0.37 | 0.06 | 0.68 | 0.04 | ||||||||||||||||
| 乌云界 | 21 | W1 | 0.66 | 0.06 | 0.51 | 0.12 | 1.50 | 0.60 | 0.47 | 0.08 | 0.85 | 0.07 | |||||||||||||||
| 22 | W2 | 0.67 | 0.06 | 0.50 | 0.11 | 2.40 | 5.11 | 0.29 | 0.03 | 0.53 | 0.04 | ||||||||||||||||
| 23 | W3 | 0.58 | 0.09 | 0.46 | 0.11 | 2.33 | 3.24 | 0.55 | 0.09 | 0.53 | 0.08 | ||||||||||||||||
| 24 | W4 | 0.63 | 0.08 | 0.45 | 0.10 | 1.94 | 1.58 | 0.36 | 0.06 | 0.54 | 0.09 | ||||||||||||||||
| 25 | W5 | 0.64 | 0.10 | 0.45 | 0.12 | 1.66 | 0.72 | 0.34 | 0.06 | 0.77 | 0.11 | ||||||||||||||||
Tab.5
Values of Moran's I Index,a comprehensive index of the study plots
| 样地 编号 | 样地区域 | 样地 名称 | 综合指数 | ||
|---|---|---|---|---|---|
| I-value | p-value | z-value | |||
| 1 | 大围山 | D1 | -0.08 | 0.02 | -2.74 |
| 2 | D2 | -0.24 | 0.00 | -2.29 | |
| 3 | D3 | -0.20 | 0.02 | -1.82 | |
| 4 | D4 | -0.25 | 0.00 | -2.59 | |
| 5 | D5 | -0.14 | 0.05 | -1.51 | |
| 6 | 龙虎山 | L1 | -0.09 | 0.08 | -0.94 |
| 7 | L2 | -0.21 | 0.00 | -2.34 | |
| 8 | L3 | -0.19 | 0.01 | -2.05 | |
| 9 | L4 | -0.15 | 0.03 | -1.78 | |
| 10 | L5 | -0.26 | 0.00 | -2.76 | |
| 11 | 芦头林场 | LT1 | -0.07 | 0.05 | -1.50 |
| 12 | LT2 | -0.08 | 0.05 | -0.69 | |
| 13 | LT3 | -0.33 | 0.00 | -3.11 | |
| 14 | LT4 | -0.23 | 0.00 | -2.30 | |
| 15 | LT5 | -0.11 | 0.05 | -1.02 | |
| 16 | 青石岗 | Q1 | -0.10 | 0.18 | -0.91 |
| 17 | Q2 | -0.16 | 0.05 | -1.57 | |
| 18 | Q3 | -0.23 | 0.00 | -2.29 | |
| 19 | Q4 | -0.09 | 0.03 | -0.76 | |
| 20 | Q5 | -0.07 | 0.06 | -0.66 | |
| 21 | 乌云界 | W1 | -0.15 | 0.05 | -1.50 |
| 22 | W2 | -0.15 | 0.04 | -1.55 | |
| 23 | W3 | -0.20 | 0.02 | -1.79 | |
| 24 | W4 | -0.11 | 0.17 | -0.99 | |
| 25 | W5 | -0.03 | 0.16 | -0.15 | |
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