干旱区生态环境知识资源中心(Arid): Effects of pruning intensity on nonstructural carbohydrates of Populus alba x P. talassica in the arid desert region of Northwest China

Arid

DOI	10.1007/s11676-020-01098-7
	Effects of pruning intensity on nonstructural carbohydrates of Populus alba x P. talassica in the arid desert region of Northwest China
	Zhang, Jun; Liu, Liqing
通讯作者	Zhang, J (corresponding author), Northeast Forestry Univ, Sch Forestry, Harbin 150040, Peoples R China. ; Zhang, J (corresponding author), Xinjiang Agr Univ, Coll Forestry & Hort, Urumqi 830052, Peoples R China. ; Liu, LQ (corresponding author), Xinjiang Tianxi Environm Protect Technol Co Ltd, Urumqi 830000, Peoples R China.
来源期刊	JOURNAL OF FORESTRY RESEARCH
ISSN	1007-662X
EISSN	1993-0607
出版年	2021
卷号	32 期号:2 页码:823-830
英文摘要	Although pruning is important to obtain high-quality, large-diameter timber, the effects of pruning on nonstructural carbohydrates (NSC) in aboveground organs of many timber species are not well understood. Three intensities of pruning (none, moderate and severe) were tested on poplars (Populus alba x P. talassica) in the arid desert region of northwest China to compare the concentrations of soluble sugar (SS), starch (ST) and total nonstructural carbohydrate (TNC) in leaves, branches and trunks during the growing season. The concentration of NSC components after different pruning intensities varied similarly in seasonal patterns, increasing slowly at the beginning of the growing season, continuously declining in the middle, then gradually recovering by the end of the growing season. The monthly mean NSC concentration in poplar differed significantly among the three pruning intensities (p < 0.05). The SS concentration in pruned trees was higher than in unpruned trees (p < 0.05). For moderately pruned trees, the concentrations of ST and TNC in trunks and branches were higher than in unpruned and in severely pruned trees (p < 0.05). Compared with no pruning, pruning changed the seasonal variation in NSC concentration. The orders of SS and TNC concentrations in aboveground organs were leaf > branch > trunk, while the order of ST concentration was trunk > leaf > branch, which was related to functional differences of plant organs. The annual average growth in height of unpruned, moderately pruned, and severely pruned poplars was 0.21 +/- 0.06, 0.45 +/- 0.09 and 0.24 +/- 0.05 m, respectively, and the annual average growth in DBH were 0.92 +/- 0.04, 1.27 +/- 0.06 and 1.02 +/- 0.05 cm, respectively. Our results demonstrate that moderate pruning may effectively increase the annual growth in tree height and DBH while avoiding damage caused by excessive pruning to the tree body. Therefore, moderate pruning may increase the NSC storage and improve the growth of timber species.
英文关键词	Pruning intensity Nonstructural carbohydrate Populus alba × P talassica Seasonal pattern
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000615578700034
WOS类目	Forestry
WOS研究方向	Forestry
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/348011
作者单位	[Zhang, Jun] Northeast Forestry Univ, Sch Forestry, Harbin 150040, Peoples R China; [Zhang, Jun] Xinjiang Agr Univ, Coll Forestry & Hort, Urumqi 830052, Peoples R China; [Liu, Liqing] Xinjiang Tianxi Environm Protect Technol Co Ltd, Urumqi 830000, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Jun,Liu, Liqing. Effects of pruning intensity on nonstructural carbohydrates of Populus alba x P. talassica in the arid desert region of Northwest China[J],2021,32(2):823-830.
APA	Zhang, Jun,&Liu, Liqing.(2021).Effects of pruning intensity on nonstructural carbohydrates of Populus alba x P. talassica in the arid desert region of Northwest China.JOURNAL OF FORESTRY RESEARCH,32(2),823-830.
MLA	Zhang, Jun,et al."Effects of pruning intensity on nonstructural carbohydrates of Populus alba x P. talassica in the arid desert region of Northwest China".JOURNAL OF FORESTRY RESEARCH 32.2(2021):823-830.