Sap flow and water consumption of<em> Populus</em> × <em>euramericana </em>‘74/76’saplings from cuttings planted on the North China Plain

ZHOU Yuan; MA Lü-yi

doi:10.11833/j.issn.2095-0756.2010.03.012

Volume 27 Issue 3

Jun. 2010

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ZHOU Yuan, MA Lü-yi. Sap flow and water consumption of Populus × euramericana ‘74/76’saplings from cuttings planted on the North China Plain[J]. Journal of Zhejiang A&F University, 2010, 27(3): 391-397. doi: 10.11833/j.issn.2095-0756.2010.03.012

Citation:

ZHOU Yuan, MA Lü-yi. Sap flow and water consumption of Populus × euramericana ‘74/76’saplings from cuttings planted on the North China Plain[J]. Journal of Zhejiang A&F University, 2010, 27(3): 391-397. doi: 10.11833/j.issn.2095-0756.2010.03.012

Sap flow and water consumption of Populus × euramericana ‘74/76’saplings from cuttings planted on the North China Plain

doi: 10.11833/j.issn.2095-0756.2010.03.012

1.
The Key Laboratory for Silviculture and Conservation of Ministry of Education，Beijing Forestry University， Beijing 100083，China

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Corresponding author: MA Lü-yi
Publish Date: 2010-06-20

Abstract

Simultaneous measurement with a heat balance and sap flow measuring system（Dynamax Inc.） to monitor the sap flow of Populus euramericana 74/76 and with an automatic weather recording system to record meteorological factors，such as the photosynthetically active radiation（PAR），air temperature，and relative humidity，was undertaken. According to weather records，the three most representative weather conditions （sunny，cloudy，and rainy days） were used to analyze the relationship of water use and meteorological factors. Results showed that PAR was always the dominant factor influencing sap flow，but sap flow diurnal variation and the main factors affecting it differed with weather conditions. Differences in sap flow density were the result of multi-meteorological factors，and the overall water use for saplings was in the order：sunny days ＞ cloudy days ＞ rainy days.［Ch，3 fig. 3 tab. 27 ref.］
- silviculture,
- Populus × euramericana ‘74/76’,
- sap flow,
- water use,
- weather conditions

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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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Sap flow and water consumption of Populus × euramericana ‘74/76’saplings from cuttings planted on the North China Plain

1. The Key Laboratory for Silviculture and Conservation of Ministry of Education，Beijing Forestry University， Beijing 100083，China

Corresponding author: MA Lü-yi

Publish Date: 2010-06-20

Key words:

Abstract: Simultaneous measurement with a heat balance and sap flow measuring system（Dynamax Inc.） to monitor the sap flow of Populus euramericana 74/76 and with an automatic weather recording system to record meteorological factors，such as the photosynthetically active radiation（PAR），air temperature，and relative humidity，was undertaken. According to weather records，the three most representative weather conditions （sunny，cloudy，and rainy days） were used to analyze the relationship of water use and meteorological factors. Results showed that PAR was always the dominant factor influencing sap flow，but sap flow diurnal variation and the main factors affecting it differed with weather conditions. Differences in sap flow density were the result of multi-meteorological factors，and the overall water use for saplings was in the order：sunny days ＞ cloudy days ＞ rainy days.［Ch，3 fig. 3 tab. 27 ref.］

Sap flow and water consumption of Populus × euramericana ‘74/76’saplings from cuttings planted on the North China Plain

doi: 10.11833/j.issn.2095-0756.2010.03.012

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通讯作者: 陈斌, bchen63@163.com

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Sap flow and water consumption of Populus × euramericana ‘74/76’saplings from cuttings planted on the North China Plain

doi: 10.11833/j.issn.2095-0756.2010.03.012

1. The Key Laboratory for Silviculture and Conservation of Ministry of Education，Beijing Forestry University， Beijing 100083，China

Corresponding author: MA Lü-yi

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Sap flow and water consumption of Populus × euramericana ‘74/76’saplings from cuttings planted on the North China Plain

doi: 10.11833/j.issn.2095-0756.2010.03.012

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Sap flow and water consumption of Populus × euramericana ‘74/76’saplings from cuttings planted on the North China Plain

doi: 10.11833/j.issn.2095-0756.2010.03.012

1. The Key Laboratory for Silviculture and Conservation of Ministry of Education，Beijing Forestry University， Beijing 100083，China

Corresponding author: MA Lü-yi

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