The Relationship between Crown and Trunk Traits of Trees in the Nanling Mountains
There is a close quantitative relationship between crown traits and trunk traits and the relationship can be used to invert each other, calculate forest biomass and stock volume, and guide afforestation practice. The correlation between tree crown and trunk traits is quite different in different reg...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | zho |
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Editorial Committee of Tropical Geography
2022-08-01
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| Series: | Redai dili |
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| Online Access: | http://www.rddl.com.cn/CN/10.13284/j.cnki.rddl.003525 |
| _version_ | 1811269553523523584 |
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| author | Gong Yuening Yang Changteng Zhou Guangyi Li Zhaojia Li Chaorong Yang Long Sun Zhongyu |
| author_facet | Gong Yuening Yang Changteng Zhou Guangyi Li Zhaojia Li Chaorong Yang Long Sun Zhongyu |
| author_sort | Gong Yuening |
| collection | DOAJ |
| description | There is a close quantitative relationship between crown traits and trunk traits and the relationship can be used to invert each other, calculate forest biomass and stock volume, and guide afforestation practice. The correlation between tree crown and trunk traits is quite different in different regions, and relevant research on the Nanling mountains is lacking. To find out the correlation between canopy and trunk traits and its relationship with altitude in the Nanling mountains, as well as to explore the feasibility of retrieving trunk traits and calculate forest biomass and stock in these mountains, forests with broad-leaf trees distributed at different altitudes (600, 800, 1000, 1400, and 1600 m) in these Mountains were selected as the research objects for this study. Unmanned aerial vehicle remote sensing was used to obtain canopy traits such as crown width, crown circumference, and crown area (CA) of canopy tree species. The correlation between basal diameter (BD) and tree trunk traits-Diameter at breast height (DBH), diameter at 2 m height (D2), and diameter at 4 m height (D4)-were investigated and regression equations were established. A high correlation was observed between crown traits and trunk traits in the Nanling mountains, and the correlation was statistically significant to invert trunk traits from crown traits. The correlation between tree crown traits and trunk traits significantly differed with elevation in these mountains, revealing an "M" shaped change with elevation. Among the crown traits selected in this study, the correlation between crown area and trunk traits was the highest, implying that it could be used solely for inversion of trunk traits. The specific equations were as follows: |
| first_indexed | 2024-04-12T21:44:01Z |
| format | Article |
| id | doaj.art-1fa24710eaa042da989425321ed49281 |
| institution | Directory Open Access Journal |
| issn | 1001-5221 |
| language | zho |
| last_indexed | 2024-04-12T21:44:01Z |
| publishDate | 2022-08-01 |
| publisher | Editorial Committee of Tropical Geography |
| record_format | Article |
| series | Redai dili |
| spelling | doaj.art-1fa24710eaa042da989425321ed492812022-12-22T03:15:42ZzhoEditorial Committee of Tropical GeographyRedai dili1001-52212022-08-014281386139510.13284/j.cnki.rddl.0035251001-5221(2022)08-1386-10The Relationship between Crown and Trunk Traits of Trees in the Nanling MountainsGong Yuening0Yang Changteng1Zhou Guangyi2Li Zhaojia3Li Chaorong4Yang Long5Sun Zhongyu6Nanling National Nature Reserve Administration of Guangdong Province, Ruyuan 512727, ChinaNanling National Nature Reserve Administration of Guangdong Province, Ruyuan 512727, ChinaInstitute of Tropical Forestry, Chinese Academy of Forestry, Guangzhou 510520, ChinaInstitute of Tropical Forestry, Chinese Academy of Forestry, Guangzhou 510520, ChinaNanling National Nature Reserve Administration of Guangdong Province, Ruyuan 512727, ChinaGuangzhou Institute of Geography, Guangdong Academy of Sciences, Guangzhou 510070, ChinaGuangzhou Institute of Geography, Guangdong Academy of Sciences, Guangzhou 510070, ChinaThere is a close quantitative relationship between crown traits and trunk traits and the relationship can be used to invert each other, calculate forest biomass and stock volume, and guide afforestation practice. The correlation between tree crown and trunk traits is quite different in different regions, and relevant research on the Nanling mountains is lacking. To find out the correlation between canopy and trunk traits and its relationship with altitude in the Nanling mountains, as well as to explore the feasibility of retrieving trunk traits and calculate forest biomass and stock in these mountains, forests with broad-leaf trees distributed at different altitudes (600, 800, 1000, 1400, and 1600 m) in these Mountains were selected as the research objects for this study. Unmanned aerial vehicle remote sensing was used to obtain canopy traits such as crown width, crown circumference, and crown area (CA) of canopy tree species. The correlation between basal diameter (BD) and tree trunk traits-Diameter at breast height (DBH), diameter at 2 m height (D2), and diameter at 4 m height (D4)-were investigated and regression equations were established. A high correlation was observed between crown traits and trunk traits in the Nanling mountains, and the correlation was statistically significant to invert trunk traits from crown traits. The correlation between tree crown traits and trunk traits significantly differed with elevation in these mountains, revealing an "M" shaped change with elevation. Among the crown traits selected in this study, the correlation between crown area and trunk traits was the highest, implying that it could be used solely for inversion of trunk traits. The specific equations were as follows:http://www.rddl.com.cn/CN/10.13284/j.cnki.rddl.003525unmanned aerial vehicle remote sensingcrown circumferencevertical projection areabiomass inversionaltitude, nanling mountains |
| spellingShingle | Gong Yuening Yang Changteng Zhou Guangyi Li Zhaojia Li Chaorong Yang Long Sun Zhongyu The Relationship between Crown and Trunk Traits of Trees in the Nanling Mountains Redai dili unmanned aerial vehicle remote sensing crown circumference vertical projection area biomass inversion altitude, nanling mountains |
| title | The Relationship between Crown and Trunk Traits of Trees in the Nanling Mountains |
| title_full | The Relationship between Crown and Trunk Traits of Trees in the Nanling Mountains |
| title_fullStr | The Relationship between Crown and Trunk Traits of Trees in the Nanling Mountains |
| title_full_unstemmed | The Relationship between Crown and Trunk Traits of Trees in the Nanling Mountains |
| title_short | The Relationship between Crown and Trunk Traits of Trees in the Nanling Mountains |
| title_sort | relationship between crown and trunk traits of trees in the nanling mountains |
| topic | unmanned aerial vehicle remote sensing crown circumference vertical projection area biomass inversion altitude, nanling mountains |
| url | http://www.rddl.com.cn/CN/10.13284/j.cnki.rddl.003525 |
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