Relationship between the Radial Growth of Two Dominant Coniferous Species and GPP in the Arid Region of Northwest China

Radial growth of trees is closely related to canopy activity. Revealing the relationship between radial growth and canopy activity is of great significance for forest protection under climate change. In this study, we built tree-ring chronologies for two tree species, spruce (<i>Picea asprucee...

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Main Authors: Na Liu, Zhitao Wu, Ziqiang Du, Tianjie Lei, Bin Sun
Format: Article
Language:English
Published: MDPI AG 2023-06-01
Series:Forests
Subjects:
Online Access:https://www.mdpi.com/1999-4907/14/7/1336
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author Na Liu
Zhitao Wu
Ziqiang Du
Tianjie Lei
Bin Sun
author_facet Na Liu
Zhitao Wu
Ziqiang Du
Tianjie Lei
Bin Sun
author_sort Na Liu
collection DOAJ
description Radial growth of trees is closely related to canopy activity. Revealing the relationship between radial growth and canopy activity is of great significance for forest protection under climate change. In this study, we built tree-ring chronologies for two tree species, spruce (<i>Picea aspruceerata</i>) and Chinese pine (<i>Pinus tabuliformis</i>), from the Helan Mountains in the arid region of northwest China. Correlation coefficients were then calculated to reveal the relationships among tree rings, two kinds of gross primary productivity (GPP) indices, and climate data. The results demonstrated that the radial growth of both spruce and Chinese pine was positively correlated with GPP from late February to early March, and moisture conditions may be the driving factor of tree growth. However, radial growth of Chinese pine was also correlated with GPP from the end of March to the end of August. This study aimed to further supplement the relationship between trunk radial growth and canopy dynamics in the arid zone of northwest China and to provide theoretical guidance for vegetation restoration and forest conservation in the arid zone of northwest China under climate change.
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spelling doaj.art-9d1119a87e0645789f88879ad35309b82023-11-18T19:22:49ZengMDPI AGForests1999-49072023-06-01147133610.3390/f14071336Relationship between the Radial Growth of Two Dominant Coniferous Species and GPP in the Arid Region of Northwest ChinaNa Liu0Zhitao Wu1Ziqiang Du2Tianjie Lei3Bin Sun4Institute of Loess Plateau, Shanxi University, Taiyuan 030006, ChinaInstitute of Loess Plateau, Shanxi University, Taiyuan 030006, ChinaInstitute of Loess Plateau, Shanxi University, Taiyuan 030006, ChinaInstitute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100081, ChinaInstitute of Forest Resource Information Techniques (IFRIT), Chinese Academy of Forestry (CAF), Beijing 100091, ChinaRadial growth of trees is closely related to canopy activity. Revealing the relationship between radial growth and canopy activity is of great significance for forest protection under climate change. In this study, we built tree-ring chronologies for two tree species, spruce (<i>Picea aspruceerata</i>) and Chinese pine (<i>Pinus tabuliformis</i>), from the Helan Mountains in the arid region of northwest China. Correlation coefficients were then calculated to reveal the relationships among tree rings, two kinds of gross primary productivity (GPP) indices, and climate data. The results demonstrated that the radial growth of both spruce and Chinese pine was positively correlated with GPP from late February to early March, and moisture conditions may be the driving factor of tree growth. However, radial growth of Chinese pine was also correlated with GPP from the end of March to the end of August. This study aimed to further supplement the relationship between trunk radial growth and canopy dynamics in the arid zone of northwest China and to provide theoretical guidance for vegetation restoration and forest conservation in the arid zone of northwest China under climate change.https://www.mdpi.com/1999-4907/14/7/1336Helan Mountainstree ring chronologyGLASS GPPEC-LUE GPPclimate factors
spellingShingle Na Liu
Zhitao Wu
Ziqiang Du
Tianjie Lei
Bin Sun
Relationship between the Radial Growth of Two Dominant Coniferous Species and GPP in the Arid Region of Northwest China
Forests
Helan Mountains
tree ring chronology
GLASS GPP
EC-LUE GPP
climate factors
title Relationship between the Radial Growth of Two Dominant Coniferous Species and GPP in the Arid Region of Northwest China
title_full Relationship between the Radial Growth of Two Dominant Coniferous Species and GPP in the Arid Region of Northwest China
title_fullStr Relationship between the Radial Growth of Two Dominant Coniferous Species and GPP in the Arid Region of Northwest China
title_full_unstemmed Relationship between the Radial Growth of Two Dominant Coniferous Species and GPP in the Arid Region of Northwest China
title_short Relationship between the Radial Growth of Two Dominant Coniferous Species and GPP in the Arid Region of Northwest China
title_sort relationship between the radial growth of two dominant coniferous species and gpp in the arid region of northwest china
topic Helan Mountains
tree ring chronology
GLASS GPP
EC-LUE GPP
climate factors
url https://www.mdpi.com/1999-4907/14/7/1336
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