干旱区生态环境知识资源中心(Arid): Hydraulic safety predicts long-term growth of economical timber tree species planted in a degraded tropical karst area

Arid

DOI	10.1007/s00468-022-02303-2
	Hydraulic safety predicts long-term growth of economical timber tree species planted in a degraded tropical karst area
	Huang, Dong-Liu; Li, Zhong-Guo; Xiang, Wei; Cao, Kun-Fang; Zhu, Shi-Dan
通讯作者	Zhu, SD
来源期刊	TREES-STRUCTURE AND FUNCTION
ISSN	0931-1890
EISSN	1432-2285
出版年	2022
卷号	36 期号:5 页码:1497-1505
英文摘要	Key message Xylem hydraulic safety is a good predictor of long-term growth of the economical tropical timber tree species planted in the degraded tropical karst areas. Planting native economical timber tree species in the degraded dry tropical karst areas has been proven to be an effective restoration way. However, drought is the key limiting factor influencing growth performance of the reforestation tree species in such habitats. In this study, we investigated long-term growth rate of seven precious timber tree species in a tropical rocky desertification area three decades after planting, and measured a series of hydraulic-related traits for these species. By examining hydraulic-growth relationships across the seven species, we aimed to explore whether hydraulic traits can be used to predict tree growth. Our results showed that long-term growth rate was significantly related to xylem water potential causing 88% loss of hydraulic conductivity and hydraulic safety margin under extreme drought. However, it was not associated with hydraulic conductivity, Huber value, wood density, and xylem anatomical traits. Additionally, there was no trade-off between hydraulic efficiency and safety, with several timber tree species showing both high hydraulic conductivity and cavitation resistance. Our results suggest that the hydraulic safety-related traits are good predictor of long-term growth rate of the economical timber tree species planted in degraded dry karst areas, thus providing guidelines to improve the efficiency of future ecological restoration.
英文关键词	Afforestation Cavitation Growth rate Hydraulic conductivity Hydraulic safety margin Karst degradation
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000786225100001
WOS关键词	WATER TRANSPORT ; WOODY-PLANTS ; XYLEM ; TRAITS ; RESISTANCE ; FORESTS ; CHINA ; STEM ; CAVITATION ; STRATEGIES
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/2XILL650/394738
推荐引用方式 GB/T 7714	Huang, Dong-Liu,Li, Zhong-Guo,Xiang, Wei,et al. Hydraulic safety predicts long-term growth of economical timber tree species planted in a degraded tropical karst area[J],2022,36(5):1497-1505.
APA	Huang, Dong-Liu,Li, Zhong-Guo,Xiang, Wei,Cao, Kun-Fang,&Zhu, Shi-Dan.(2022).Hydraulic safety predicts long-term growth of economical timber tree species planted in a degraded tropical karst area.TREES-STRUCTURE AND FUNCTION,36(5),1497-1505.
MLA	Huang, Dong-Liu,et al."Hydraulic safety predicts long-term growth of economical timber tree species planted in a degraded tropical karst area".TREES-STRUCTURE AND FUNCTION 36.5(2022):1497-1505.