Responses and Post-Recovery of Physiological Traits after Drought-Heatwave Combined Event in 12 Urban Woody Species

被引：2

作者：

Wang, Yongkang ^{[1
]}

Xing, Chen ^{[1
,2
]}

Gu, Yilin ^{[1
]}

Zhou, Yang ^{[1
]}

Song, Jinyan ^{[1
]}

Zhou, Ziyi ^{[1
]}

Song, Jia ^{[1
,3
]}

Gao, Jun ^{[1
,3
]}

机构：

[1] Shanghai Normal Univ, Sch Environm & Geog Sci, Shanghai 200234, Peoples R China

[2] Shanghai Normal Univ, Coll Life Sci, Shanghai 200234, Peoples R China

[3] Shanghai Normal Univ, Yangtze River Delta Natl Observ Wetland Ecosyst, Shanghai 200234, Peoples R China

来源：

FORESTS | 2023年 / 14卷 / 07期

基金：

中国国家自然科学基金;

关键词：

heatwave; drought stress; hydraulic conductivity; stomatal conductance; xylem embolism; climate change; VAPOR-PRESSURE DEFICIT; TREE MORTALITY; FOREST; XYLEM; TEMPERATURE; CLIMATE; PLANT; PHOTOSYNTHESIS; TRANSPIRATION; HYDRAULICS;

D O I：

10.3390/f14071429

中图分类号：

S7 [林业];

学科分类号：

0829 ; 0907 ;

摘要：

The frequency and intensity of droughts combined with heatwave events have increased under climate change, increasing destruction in urban areas and leading to severe impacts on urban plants. These impacts remain poorly understood at the species level. Here, we investigate the effects of a drought-heatwave event on 12 urban woody species using in situ records of the dynamic changes in physiological traits in the field before, during and after the drought-heatwave event to assess resistance and resilience to hot drought. We found the following: (1) Hydraulic and photosynthesis traits showed an instantaneous decline during the hot drought event in the 12 species, with severe drought-induced xylem embolism in hydraulic systems and a high percentage loss of hydraulic conductivity (PLC). (2) The two conifer species were less resistant to hot droughts than broadleaves but capable of post-stress recovery, suggesting that conifers showed better resilience and that broadleaves showed better resistance under hot drought stress. (3) The evergreen species showed strong resistance, while three deciduous species showed strong resilience to hot drought stress. (4) The three shrubs may be more vulnerable to hot droughts than trees, as they showed lower resistance and were not able to recover the current year's growth.

引用

页数：17

共 85 条

[1] On underestimation of global vulnerability to tree mortality and forest die-off from hotter drought in the Anthropocene [J].

Allen, Craig D. ;

Breshears, David D. ;

McDowell, Nate G. .

ECOSPHERE, 2015, 6 (08)

[2] A global overview of drought and heat-induced tree mortality reveals emerging climate change risks for forests [J].

Allen, Craig D. ;

Macalady, Alison K. ;

Chenchouni, Haroun ;

Bachelet, Dominique ;

McDowell, Nate ;

Vennetier, Michel ;

Kitzberger, Thomas ;

Rigling, Andreas ;

Breshears, David D. ;

Hogg, E. H. ;

Gonzalez, Patrick ;

Fensham, Rod ;

Zhang, Zhen ;

Castro, Jorge ;

Demidova, Natalia ;

Lim, Jong-Hwan ;

Allard, Gillian ;

Running, Steven W. ;

Semerci, Akkin ;

Cobb, Neil .

FOREST ECOLOGY AND MANAGEMENT, 2010, 259 (04) :660-684

[3] Different Urban Forest Tree Species Affect the Assembly of the Soil Bacterial and Fungal Community [J].

Ao, Lun ;

Zhao, Meichun ;

Li, Xin ;

Sun, Guangyu .

MICROBIAL ECOLOGY, 2022, 83 (02) :447-458

[4] High water use in desert plants exposed to extreme heat [J].

Aparecido, Luiza M. T. ;

Woo, Sabrina ;

Suazo, Crystal ;

Hultine, Kevin R. ;

Blonder, Benjamin .

ECOLOGY LETTERS, 2020, 23 (08) :1189-1200

[5] Rapid hydraulic collapse as cause of drought-induced mortality in conifers [J].

Arend, Matthias ;

Link, Roman M. ;

Patthey, Rachel ;

Hocha, Gunter ;

Schuldt, Bernhard ;

Kahmen, Ansgar .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2021, 118 (16)

[6] Growth and physiological responses of isohydric and anisohydric poplars to drought [J].

Attia, Ziv ;

Domec, Jean-Christophe ;

Oren, Ram ;

Way, Danielle A. ;

Moshelion, Menachem .

JOURNAL OF EXPERIMENTAL BOTANY, 2015, 66 (14) :4373-4381

[7] Urban-Scale Evaluation of Cool Pavement Impacts on the Urban Heat Island Effect and Climate Change [J].

AzariJafari, Hessam ;

Xu, Xin ;

Gregory, Jeremy ;

Kirchain, Randolph .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2021, 55 (17) :11501-11510

[8]

Bennett AC, 2015, NAT PLANTS, V1, DOI [10.1038/NPLANTS.2015.139, 10.1038/nplants.2015.139]

[9] How do inhabitants of mountain areas perceive climate change and forest dieback? A comparison between France and Germany [J].

Brahic, Elodie ;

Garms, Mareike ;

Deuffic, Philippe ;

Lyser, Sandrine ;

Mayer, Marius .

ENVIRONMENTAL MANAGEMENT, 2022, 70 (06) :896-910

[10] Triggers of tree mortality under drought [J].

Choat, Brendan ;

Brodribb, Timothy J. ;

Brodersen, Craig R. ;

Duursma, Remko A. ;

Lopez, Rosana ;

Medlyn, Belinda E. .

NATURE, 2018, 558 (7711) :531-539

← 1 2 3 4 5 6 7 8 9 →