Research on the Stand Spatial Structure of Mixed <i>Pinus armandii</i> Forest of Different Tree Species Composition in Central Yunnan Areas

WANG Lei; LIU Lang; WANG Wei-wei; ZHANG Yuan-rong; XU Yan-hong

doi:10.16779/j.cnki.1003-5508.2015.06.010

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Volume 36 Issue 6

Nov. 2019

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Article Navigation > Journal of Sichuan Forestry Science and Technology > 2015 > 36(6): 57-61

WANG Lei, LIU Lang, WANG Wei-wei, ZHANG Yuan-rong, XU Yan-hong. Research on the Stand Spatial Structure of Mixed Pinus armandii Forest of Different Tree Species Composition in Central Yunnan Areas[J]. Journal of Sichuan Forestry Science and Technology, 2015, 36(6): 57-61. doi: 10.16779/j.cnki.1003-5508.2015.06.010

Citation:

WANG Lei, LIU Lang, WANG Wei-wei, ZHANG Yuan-rong, XU Yan-hong. Research on the Stand Spatial Structure of Mixed Pinus armandii Forest of Different Tree Species Composition in Central Yunnan Areas[J]. Journal of Sichuan Forestry Science and Technology, 2015, 36(6): 57-61. doi: 10.16779/j.cnki.1003-5508.2015.06.010

Research on the Stand Spatial Structure of Mixed Pinus armandii Forest of Different Tree Species Composition in Central Yunnan Areas

doi: 10.16779/j.cnki.1003-5508.2015.06.010

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Southwest China Forestry University, Yunnan 650224, Kunming, China

Received Date: 2015-06-06

Abstract

Studies were made of the stand spatial structure of mixed Pinus armandii Forest of different tree species in central Yunnan Plateau by means of three parameters,including the mingling intensity,uniform angle index and neighborhood comparison. The results showed that forest space isolation level was from low to high along with the fall of the tree species composition factor. The mixed degree of the stand was weak and zero when the composition factor was more than 6; The mixed degree of the stand was between middle and intensive when the composition factor was less than 6; The dominant tree species, Pinus armandii,was close to moderate mixture, and the rest species were intensive mixture. All of the stand belonged to the aggregate distribution; Average neighborhood comparison was between 0.47 to 0.51, belonging to the medium level. In general,the stand would grow more stable and better if the dominant tree species composition factor was low and the composition factor of each species was uniform.
- Pinus armandii;
- Spatial structure;
- Neighborhood comparison;
- Mixed degree;
- Uniform angle index
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

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Research on the Stand Spatial Structure of Mixed Pinus armandii Forest of Different Tree Species Composition in Central Yunnan Areas

doi: 10.16779/j.cnki.1003-5508.2015.06.010

Southwest China Forestry University, Yunnan 650224, Kunming, China

Received Date: 2015-06-06

Key words:

Abstract: Studies were made of the stand spatial structure of mixed Pinus armandii Forest of different tree species in central Yunnan Plateau by means of three parameters,including the mingling intensity,uniform angle index and neighborhood comparison. The results showed that forest space isolation level was from low to high along with the fall of the tree species composition factor. The mixed degree of the stand was weak and zero when the composition factor was more than 6; The mixed degree of the stand was between middle and intensive when the composition factor was less than 6; The dominant tree species, Pinus armandii,was close to moderate mixture, and the rest species were intensive mixture. All of the stand belonged to the aggregate distribution; Average neighborhood comparison was between 0.47 to 0.51, belonging to the medium level. In general,the stand would grow more stable and better if the dominant tree species composition factor was low and the composition factor of each species was uniform.