Response of Typical Tree Species Sap Flow to Environmental Factors in the Hilly Areas of Haihe River Basin, China

Understanding developments in the trunk sap flow of prevalent tree species within the hilly areas of the Haihe River basin is imperative for ecosystem conservation. Nevertheless, the changes in sap flow of local trees and their response to environmental factors remain elusive. This study focuses on...
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Autor*in:	Shuying Han [verfasserIn] Qingming Wang [verfasserIn] Yong Zhao [verfasserIn] Jiaqi Zhai [verfasserIn] Xiang Wang [verfasserIn] Yan Hao [verfasserIn] Linghui Li [verfasserIn] Xing Li [verfasserIn] Haihong Li [verfasserIn] Jiansheng Cao [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2024

Schlagwörter:	sap flow rate meteorological factors soil factors different time scales time lag

Übergeordnetes Werk:	In: Forests - MDPI AG, 2010, 15(2024), 2, p 294
Übergeordnetes Werk:	volume:15 ; year:2024 ; number:2, p 294

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.3390/f15020294

Katalog-ID:	DOAJ099643456

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authorswithroles_txt_mv	Shuying Han @@aut@@ Qingming Wang @@aut@@ Yong Zhao @@aut@@ Jiaqi Zhai @@aut@@ Xiang Wang @@aut@@ Yan Hao @@aut@@ Linghui Li @@aut@@ Xing Li @@aut@@ Haihong Li @@aut@@ Jiansheng Cao @@aut@@
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callnumber-first	Q - Science
author	Shuying Han
spellingShingle	Shuying Han misc QK900-989 misc sap flow rate misc meteorological factors misc soil factors misc different time scales misc time lag misc Plant ecology Response of Typical Tree Species Sap Flow to Environmental Factors in the Hilly Areas of Haihe River Basin, China
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topic_title	QK900-989 Response of Typical Tree Species Sap Flow to Environmental Factors in the Hilly Areas of Haihe River Basin, China sap flow rate meteorological factors soil factors different time scales time lag
topic	misc QK900-989 misc sap flow rate misc meteorological factors misc soil factors misc different time scales misc time lag misc Plant ecology
topic_unstemmed	misc QK900-989 misc sap flow rate misc meteorological factors misc soil factors misc different time scales misc time lag misc Plant ecology
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title	Response of Typical Tree Species Sap Flow to Environmental Factors in the Hilly Areas of Haihe River Basin, China
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title_full	Response of Typical Tree Species Sap Flow to Environmental Factors in the Hilly Areas of Haihe River Basin, China
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title_sort	response of typical tree species sap flow to environmental factors in the hilly areas of haihe river basin, china
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title_auth	Response of Typical Tree Species Sap Flow to Environmental Factors in the Hilly Areas of Haihe River Basin, China
abstract	Understanding developments in the trunk sap flow of prevalent tree species within the hilly areas of the Haihe River basin is imperative for ecosystem conservation. Nevertheless, the changes in sap flow of local trees and their response to environmental factors remain elusive. This study focuses on seven dominant tree species in the hilly area of the Haihe River basin and analyzed the relationship between tree sap flow rate and environmental factors at different time scales (hourly and daily). Our findings suggested: (1) Regardless of the time scale, total solar irradiance played a primary role in influencing sap flow rate. Conversely, as the time scale grew, the associations between most soil factors and sap flow rate enhanced, while those with meteorological factors declined. Notably, soil temperature exerted a more profound influence on sap flow rate than soil moisture and conductivity. (2) At the hourly scale, the sap flow rate of each species had a lag effect of 1–2 h with vapour pressure deficit, relative humidity and temperature, and 1 h or no lag effect with total solar irradiance and wind speed. (3) The response model of sap flow rate and environmental factors showed that, except for <i<Pinus tabuliformis</i< Carr., other tree species fit well at various time scales (R<sup<2</sup< ≥ 0.59). As the time scale of most tree species increased from hourly scale to daily scale, the fit gradually weakened. Concurrently, considering the time-lag effect, the accuracy of the model has been improved, and the fitting accuracy of <i<Koelreuteria paniculata</i< Laxm. and <i<Pinus tabuliformis</i< Carr. has been significantly improved.
abstractGer	Understanding developments in the trunk sap flow of prevalent tree species within the hilly areas of the Haihe River basin is imperative for ecosystem conservation. Nevertheless, the changes in sap flow of local trees and their response to environmental factors remain elusive. This study focuses on seven dominant tree species in the hilly area of the Haihe River basin and analyzed the relationship between tree sap flow rate and environmental factors at different time scales (hourly and daily). Our findings suggested: (1) Regardless of the time scale, total solar irradiance played a primary role in influencing sap flow rate. Conversely, as the time scale grew, the associations between most soil factors and sap flow rate enhanced, while those with meteorological factors declined. Notably, soil temperature exerted a more profound influence on sap flow rate than soil moisture and conductivity. (2) At the hourly scale, the sap flow rate of each species had a lag effect of 1–2 h with vapour pressure deficit, relative humidity and temperature, and 1 h or no lag effect with total solar irradiance and wind speed. (3) The response model of sap flow rate and environmental factors showed that, except for <i<Pinus tabuliformis</i< Carr., other tree species fit well at various time scales (R<sup<2</sup< ≥ 0.59). As the time scale of most tree species increased from hourly scale to daily scale, the fit gradually weakened. Concurrently, considering the time-lag effect, the accuracy of the model has been improved, and the fitting accuracy of <i<Koelreuteria paniculata</i< Laxm. and <i<Pinus tabuliformis</i< Carr. has been significantly improved.
abstract_unstemmed	Understanding developments in the trunk sap flow of prevalent tree species within the hilly areas of the Haihe River basin is imperative for ecosystem conservation. Nevertheless, the changes in sap flow of local trees and their response to environmental factors remain elusive. This study focuses on seven dominant tree species in the hilly area of the Haihe River basin and analyzed the relationship between tree sap flow rate and environmental factors at different time scales (hourly and daily). Our findings suggested: (1) Regardless of the time scale, total solar irradiance played a primary role in influencing sap flow rate. Conversely, as the time scale grew, the associations between most soil factors and sap flow rate enhanced, while those with meteorological factors declined. Notably, soil temperature exerted a more profound influence on sap flow rate than soil moisture and conductivity. (2) At the hourly scale, the sap flow rate of each species had a lag effect of 1–2 h with vapour pressure deficit, relative humidity and temperature, and 1 h or no lag effect with total solar irradiance and wind speed. (3) The response model of sap flow rate and environmental factors showed that, except for <i<Pinus tabuliformis</i< Carr., other tree species fit well at various time scales (R<sup<2</sup< ≥ 0.59). As the time scale of most tree species increased from hourly scale to daily scale, the fit gradually weakened. Concurrently, considering the time-lag effect, the accuracy of the model has been improved, and the fitting accuracy of <i<Koelreuteria paniculata</i< Laxm. and <i<Pinus tabuliformis</i< Carr. has been significantly improved.
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container_issue	2, p 294
title_short	Response of Typical Tree Species Sap Flow to Environmental Factors in the Hilly Areas of Haihe River Basin, China
url	https://doi.org/10.3390/f15020294 https://doaj.org/article/4e3acaef5d9d47cbafaa7e912b232591 https://www.mdpi.com/1999-4907/15/2/294 https://doaj.org/toc/1999-4907
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Response of Typical Tree Species Sap Flow to Environmental Factors in the Hilly Areas of Haihe River Basin, China

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