Spatial structure of mixed larch-spruce-fir stands

ZHANG Hui-ru; WU Ji-cheng; YANG Hong-bo; CHEN Xin-mei

Volume 26 Issue 3

Jun. 2009

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ZHANG Hui-ru, WU Ji-cheng, YANG Hong-bo, CHEN Xin-mei. Spatial structure of mixed larch-spruce-fir stands[J]. Journal of Zhejiang A&F University, 2009, 26(3): 319-325.

Citation:

ZHANG Hui-ru, WU Ji-cheng, YANG Hong-bo, CHEN Xin-mei. Spatial structure of mixed larch-spruce-fir stands[J]. Journal of Zhejiang A&F University, 2009, 26(3): 319-325.

Spatial structure of mixed larch-spruce-fir stands

1.
Research Institute of Forest Resource Information Techniques，The Chinese Academy of Forestry，Beijing 100091，China;
2.
Hongshi Forest Enterprise of Jilin Province，Huadian 132405，Jilin，China

More Information

Corresponding author: ZHANG Hui-ru
Publish Date: 2009-06-20

Abstract

To provide a referencing foundation for structural adjustments in a mixed larch（Larix olgensis）-spruce（Picea jezoensis）-fir（Abies nephrolepis） stand，found only in the over-logged forest of the Changbai Mountains，three parameters，namely uniform angle index，mingling index，and neighborhood comparison，were used to describe spatial structure. Results indicated that the stand uniform angle index was 0.520；the average stand mingling was 0.64；and for diameter at breast height with the neighborhood comparison，coniferous trees （esp. Picea jezoensis） dominated，with fewer Pinus koraiensis. The neighborhood pattern showed tree distribution was clustered，and the average mingling index indicated the stand was a medium mixed degree. Thus，these three spatial tests could be used to decide the trees and species to cut so as to adjust stands to an optimum structure.［Ch，3 tab. 17 ref.］
- forest management,
- mixed larch-spruce-fir stands,
- uniform angle index,
- mingling index,
- neighborhood comparison

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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

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Spatial structure of mixed larch-spruce-fir stands

1. Research Institute of Forest Resource Information Techniques，The Chinese Academy of Forestry，Beijing 100091，China;

2. Hongshi Forest Enterprise of Jilin Province，Huadian 132405，Jilin，China

Corresponding author: ZHANG Hui-ru

Publish Date: 2009-06-20

Key words:

Abstract: To provide a referencing foundation for structural adjustments in a mixed larch（Larix olgensis）-spruce（Picea jezoensis）-fir（Abies nephrolepis） stand，found only in the over-logged forest of the Changbai Mountains，three parameters，namely uniform angle index，mingling index，and neighborhood comparison，were used to describe spatial structure. Results indicated that the stand uniform angle index was 0.520；the average stand mingling was 0.64；and for diameter at breast height with the neighborhood comparison，coniferous trees （esp. Picea jezoensis） dominated，with fewer Pinus koraiensis. The neighborhood pattern showed tree distribution was clustered，and the average mingling index indicated the stand was a medium mixed degree. Thus，these three spatial tests could be used to decide the trees and species to cut so as to adjust stands to an optimum structure.［Ch，3 tab. 17 ref.］

Spatial structure of mixed larch-spruce-fir stands

Abstract

References

Proportional views

通讯作者: 陈斌, bchen63@163.com

Related

Proportional views