Response of gas exchange characteristics to environmental factors in three Populus shelterbelts of the Hexi Corridor

doi:10.7522/j.issn.1000-694X.2025.00176

Journal of Desert Research ›› 2026, Vol. 46 ›› Issue (4): 66-76.DOI: 10.7522/j.issn.1000-694X.2025.00176

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Response of gas exchange characteristics to environmental factors in three Populus shelterbelts of the Hexi Corridor

Hao Xue¹(), Jie Yang¹, Qiyue Yang²(), Yuzhe Wang¹, Yanfang Lu³, Peng Qu⁴

^1.College of Forestry，Fujian Agriculture and Forestry University，Fuzhou 350002，China
^2.State Key Laboratory of Ecological Safety and Sustainable Development in Arid Lands / Linze Inland River Basin Research Station，Northwest Institute of Eco-Environment and Resources，Chinese Academy of Sciences，Lanzhou 730000，China
^3.Zhangye Forestry Research Institute，Zhangye 734000，Gansu，China
^4.Geomatics Center of Gansu Province，Lanzhou 730000，China

Received:2025-09-10 Revised:2025-12-01 Online:2026-07-20 Published:2026-08-27
Contact: Qiyue Yang

Abstract

Abstract:

Exploring how gas-exchange characteristics of different Populus shelterbelts respond to multiple environmental scenarios can deepen our understanding of their environmental adaptation strategies and provide important ecological insights for sustaining oasis ecosystems in arid regions. Using the LI-6800F photosynthesis-fluorescence automatic measurement system， we conducted field experiments to assess photosynthetic response curves of three typical Populus species （P.euphratica， P. alba var. pyramidalis， and P. gansuensis） to changes in temperature， saturation vapor pressure difference （VPD）， and CO₂. By simulating increased temperature， VPD， and CO₂ concentration， we analyzed changes in net photosynthetic rate （P_n）， transpiration rate （Tr）， stomatal conductance （G_s）， and water-use efficiency （WUE） across scenarios. The results showed：（1） Warming significantly affected P_n， G_s， Tr， and WUE in all three species. With increasing temperature， P_n， G_s， and Tr showed an initial rise followed by a decline， whereas WUE showed the opposite trend. Overall， P.euphratica maintained higher P_n， G_s， and Tr， while P. alba var. pyramidalis demonstrated higher WUE. （2） Increasing VPD significantly reduced P_n but enhanced WUE （except for P.alba var. pyramidalis） in all species. The G_s and Tr of P.euphratica and P. gansuensis first increased and then decreased with rising VPD. Although P.euphratica exhibited higher P_n， G_s， and Tr， its WUE was significantly lower than that of the other two species. （3） Elevated CO₂ significantly increased P_n and WUE in all species， but G_s and Tr responded differently： They increased and then declined in P. alba var. pyramidalis and P.euphratica， while changes in P. gansuensis and the G_s of P.euphratica were minimal. （4） Under both warming and elevated VPD， P.euphratica showed superior P_n， G_s， and Tr， indicating stronger ecological adaptability to temperature and water stress compared to P. alba var. pyramidalis and P. gansuensis. Under elevated CO₂， there was no significant difference in P_n between P. gansuensis and P.euphratica at CO₂ concentrations no higher than 400 µmol·mol^-1， whereas P. gansuensis showed higher P_n than P.euphratica at CO₂ concentrations above 400 µmol·mol^-1， suggesting greater sensitivity to high CO₂. Overall， significant interspecific differences were observed in gas exchange responses， with P. euphratica demonstrating the greatest adaptability to extreme arid conditions， supporting its designation as the dominant pioneer species for afforestation in the study region.

Key words: Populus shelterbelts, gas exchange, environmental factors, photosynthetic response curve, water-use efficiency

CLC Number:

S718.55+1.2

Hao Xue, Jie Yang, Qiyue Yang, Yuzhe Wang, Yanfang Lu, Peng Qu. Response of gas exchange characteristics to environmental factors in three Populus shelterbelts of the Hexi Corridor[J]. Journal of Desert Research, 2026, 46(4): 66-76.

Figures/Tables 6

References 51

[1]	Bello J， Hasselquist N J， Vallet P，et al.Complementary water uptake depth of Quercus petraea and Pinus sylvestris in mixed stands during an extreme drought［J］.Plant and Soil，2019，437（1/2）：93-115.
[2]	周红娟，刘子赫，刘柯言，等.不同降雨条件下北京土石山区混生乔灌植物的水分吸收和生态位特征［J］.植物生态学报，2024，48（9）：1089-1103.
[3]	杨杰，薛浩，杨淇越，等.巴丹吉林沙漠不同林龄梭梭（Haloxylon ammodendron）气体交换对增温的适应策略［J］.中国沙漠，2025，45（1）：195-203.
[4]	Vandvik V， Althuizen I H J， Jaroszynska F，et al.The role of plant functional groups mediating climate impacts on carbon and biodiversity of alpine grasslands［J］.Scientific Data，2022，9（1）：451.
[5]	王云霞，刘莹，付雨辰，等.干旱胁迫对连翘幼苗非结构性碳分配和水力特性的影响［J］.生态学报，2024，44（11）：4698-4707.
[6]	Xu C Y， Liu H Y， Anenkhonov O A，et al.Long-term forest resilience to climate change indicated by mortality，regeneration，and growth in semiarid Southern Siberia［J］.Global Change Biology，2017，23（6）：2370-2382.
[7]	岳广阳，赵哈林，张铜会，等.科尔沁沙地杨树苗木生长过程中蒸腾耗水规律研究［J］.中国沙漠，2009，29（4）：674-679.
[8]	贺晓慧，司建华，周冬蒙，等.不同林龄梭梭（Haloxylon ammodendron）的光合特性和水分利用效率［J］.中国沙漠，2023，43（1）：20-26.
[9]	张翼，叶尔江·拜克吐尔汉，王宣璎，等.4种乔木幼树的光合性状对氮添加的响应［J］.森林与环境学报，2023，43（5）：457-464.
[10]	康红梅，李花花，徐当会，等.大气CO₂浓度及温度升高对高山灌木鬼箭锦鸡儿（Caragana jubata）生长及抗氧化系统的影响［J］.生态学报，2020，40（1）：367-376.
[11]	Niinemets Ü.Variation in leaf photosynthetic capacity within plant canopies：optimization，structural，and physiological constraints and inefficiencies［J］.Photosynthesis Research，2023，158（2）：131-149.
[12]	Alivia P， Subhankar M， Asmita P，et al.Seed priming with NaCl helps to improve tissue tolerance，potassium retention ability of plants，and protects the photosynthetic ability in two different legumes，chickpea and lentil，under salt stress［J］.Planta，2023，257（6）：111.
[13]	段利民，闫雪，刘廷玺，等.多重情景下半干旱地区人工杨树林光合生理特征［J］.水土保持学报，2019，33（1）：213-220.
[14]	王卫锋，赵瑜琦，高苗琴，等.群众杨幼苗叶光合特性与碳氮分配对CO₂浓度和气温升高的响应［J］.林业科学，2023，59（2）：40-47.
[15]	樊星，秦圆圆，高翔.IPCC第六次评估报告第一工作组报告主要结论解读及建议［J］.环境保护，2021，49（）：44-48.
[16]	Yuan W P， Zheng Y， Piao S L，et al.Increased atmospheric vapor pressure deficit reduces global vegetation growth［J］.Science Advances，2019，5（8）：eaax1396.
[17]	曹生奎，冯起，司建华，等.胡杨光合蒸腾与影响因子间关系的研究［J］.干旱区资源与环境，2012，26（4）：155-159.
[18]	李树鑫，卢元兵，段宝利，等.杨树（Populus）生理生态特性对增温、大气CO₂浓度升高和干旱响应的Meta分析［J］.山地学报，2017，35（5）：636-644.
[19]	於嘉禾，王卫光，陈泽峰.全球旱地饱和水汽压差和根区土壤水分变化对植被生产力的影响及其成因［J］.生态学报，2024，44（11）：4808-4819.
[20]	张智勇，黄庆丰.不同CO₂浓度对南方红豆杉光合速率的影响［J］.贵阳学院学报（自然科学版），2023，18（1）：49-52.
[21]	马帅，周海，种培芳，等.平茬对四翅滨藜补偿生长及水分生理特征的影响［J］.西北植物学报，2024，44（3）：353-361.
[22]	游桂莹，张志渊，张仁铎.全球陆地生态系统光合作用与呼吸作用的温度敏感性［J］.生态学报，2018，38（23）：8392-8399.
[23]	马迎宾，黄雅茹，苏智，等.乌兰布和沙漠绿洲3种杨树叶片性状研究［J］.中南林业科技大学学报，2019，39（8）：10-15.
[24]	李端，司建华，张小由，等.胡杨（Populus euphratica）对干旱胁迫的生态适应［J］.中国沙漠，2020，40（2）：17-23.
[25]	孙永江，王琪，邵琪雯，等.高温胁迫对植物光合作用的影响研究进展［J］.植物学报，2023，58（3）：486-498.
[26]	张波，卢凯燕，张晓宇，等.盐胁迫下胡杨根系发育与遗传调控［J］.北京林业大学学报，2025，47（1）：72-84.
[27]	叶旺敏，熊德成，杨智杰，等.模拟增温对杉木幼树生长和光合特性的影响［J］.生态学报，2019，39（7）：2501-2509.
[28]	阮成江，李代琼.黄土丘陵区沙棘气孔导度及其影响因子［J］.西北植物学报，2001（6）：30-36.
[29]	张雅婷，叶旺敏，熊德成，等.杉木幼树光合特性与生长的季节变化及其对土壤增温的响应［J］.应用生态学报，2024，35（1）：195-202.
[30]	司建华，常宗强，苏永红，等.胡杨叶片气孔导度特征及其对环境因子的响应［J］.西北植物学报，2008，28（1）：125-130.
[31]	王堃莹，邱贵福，刘子赫，等.气候变化对不同退化程度小叶杨林分生长和内在水分利用效率的调节［J］.植物生态学报，2025，49（2）：343-355.
[32]	郭彬，罗维成，单立山，等.模拟增温对河西走廊典型荒漠灌木光合作用的影响［J］.草业学报，2025，34（7）：145-157.
[33]	王晓燕，彭礼琼，金则新.模拟增温条件下接种AMF对夏蜡梅幼苗生长与光合生理特性的影响［J］.生态学报，2016，36（16）：5204-5214.
[34]	顾文杰，周广胜，吕晓敏，等.克氏针茅物候对气候变暖和水分变化的响应及其光合生理生态机制［J］.生态学报，2022，42（20）：8322-8330.
[35]	蔺蕊，吉小敏，梁继业.新疆南疆地区绿洲外围混交林中胡杨和新疆杨光合特性比较［J］.干旱区资源与环境，2011，25（9）：128-131.
[36]	Liu M Z， Jiang G M， Li Y G，et al.Gas exchange，photochemical efficiency，and leaf water potential in three Salix species［J］.Photosynthetica，2003，41（3）：393-398.
[37]	翟树琛，王天娇，李鑫豪，等.毛乌素沙地黑沙蒿水分利用效率环境调控：从叶片到生态系统［J］.应用生态学报，2024，35（4）：997-1006.
[38]	孙旭，杨文慧，焦磊，等.不同时间尺度北京蟒山油松树干液流对环境因子的响应［J］.生态学报，2022，42（10）：4113-4123.
[39]	张志刚，李宏， Walther D，等.塔里木河中游胡杨与灰叶胡杨气体交换特性对比研究［J］.西北植物学报，2012，32（12）：2506-2511.
[40]	周洪华，陈亚宁，李卫红，等.塔里木河下游胡杨气体交换特性及其环境解释［J］.中国沙漠，2008，28（4）：665-672.
[41]	Yang J， Duursma R A， Kauwe M G D，et al.Incorporating non-stomatal limitation improves the performance of leaf and canopy models at high vapour pressure deficit［J］.Tree Physiology，2019，39（12）：1961-1974.
[42]	高冠龙，冯起，刘贤德.自然条件下胡杨叶片光合作用的气孔、非气孔限制［J］.干旱区资源与环境，2020，34（11）：182-188.
[43]	李静.几种植物叶片气孔导度与植物激素对大气湿度的响应［D］.青岛：山东大学，2014.
[44]	Reich P B， Hobbie S E.Decade-long soil nitrogen constraint on the CO₂ fertilization of plant biomass［J］.Nature Climate Change，2013，3（3）：278-282.
[45]	Kimball B A， LaMorte R L， Seay R S，et al.Effects of free-air CO₂ enrichment on energy balance and evapotranspiration of cotton［J］.Agricultural and Forest Meteorology，1994，70（1/4）：259-278.
[46]	Boretti A.Evaluating water use efficiency and CO₂ absorption in plants under rising atmospheric carbon dioxide levels［J］.Journal of Atmospheric and Solar-Terrestrial Physics，2025，266：106409.
[47]	张小全，徐德应，赵茂盛，等.CO₂增长对杉木中龄林针叶光合生理生态的影响［J］.生态学报，2000，20（3）：390-396.
[48]	Rogers H H， Runion G B， Krupa S V.Plant responses to atmospheric CO₂ enrichment with emphasis on roots and the rhizosphere［J］.Environmental Pollution，1994，83（1/2）：155-189.
[49]	Chai Y F， Miao C Y， Berghuijs W R，et al.Global reduction in sensitivity of vegetation water use efficiency to increasing CO₂ ［J］.Journal of Hydrology，2024，641：131844.
[50]	王建林，于贵瑞，房全孝，等.不同植物叶片水分利用效率对光和CO₂的响应与模拟［J］.生态学报，2008，28（2）：525-533.
[51]	毛子军，赵溪竹，刘林馨，等.3种落叶松幼苗对CO₂升高的光合生理响应［J］.生态学报，2010，30（2）：317-323.

树种	树高 /m	胸径 /cm	水势/MPa
树种	树高 /m	胸径 /cm	凌晨Ψ_pd	正午Ψ_mid
胡杨	9.54±0.25^c	22.15±0.42^c	-3.00±0.07^b	-3.16±0.09^b
新疆杨	12.48±0.19^a	28.65±0.55^a	-0.49±0.01^a	-1.72±0.13^a
二白杨	10.67±0.28^b	23.75±0.27^b	-0.41±0.03^a	-1.82±0.12^a

树种	树高 /m	胸径 /cm	水势/MPa
树种	树高 /m	胸径 /cm	凌晨Ψ_pd	正午Ψ_mid
胡杨	9.54±0.25^c	22.15±0.42^c	-3.00±0.07^b	-3.16±0.09^b
新疆杨	12.48±0.19^a	28.65±0.55^a	-0.49±0.01^a	-1.72±0.13^a
二白杨	10.67±0.28^b	23.75±0.27^b	-0.41±0.03^a	-1.82±0.12^a

树种	环境因子	净光合速率P_n	蒸腾速率Tr	气孔导度G_s	水分利用效率WUE
胡杨	温度	0.518^**	-0.017	-0.065	0.486^**
	饱和水汽压差VPD	-0.791^**	-0.526^**	-0.801^**	0.724^**
	CO₂浓度	0.960^**	0.352	-0.441^*	0.974^**
新疆杨	温度	-0.770^**	-0.434^*	-0.643^**	0.417^*
	饱和水汽压差VPD	-0.736^**	-0.061	0.079	-0.543^**
	CO₂浓度	0.915^**	0.838^**	0.688^**	0.904^**
二白杨	温度	-0.724^**	-0.789^**	-0.797^**	0.787^**
	饱和水汽压差VPD	-0.656^**	0.120	-0.773^**	0.728^**
	CO₂浓度	0.959^**	0.006	0.076	0.954^**

树种	环境因子	净光合速率P_n	蒸腾速率Tr	气孔导度G_s	水分利用效率WUE
胡杨	温度	0.518^**	-0.017	-0.065	0.486^**
	饱和水汽压差VPD	-0.791^**	-0.526^**	-0.801^**	0.724^**
	CO₂浓度	0.960^**	0.352	-0.441^*	0.974^**
新疆杨	温度	-0.770^**	-0.434^*	-0.643^**	0.417^*
	饱和水汽压差VPD	-0.736^**	-0.061	0.079	-0.543^**
	CO₂浓度	0.915^**	0.838^**	0.688^**	0.904^**
二白杨	温度	-0.724^**	-0.789^**	-0.797^**	0.787^**
	饱和水汽压差VPD	-0.656^**	0.120	-0.773^**	0.728^**
	CO₂浓度	0.959^**	0.006	0.076	0.954^**

Response of gas exchange characteristics to environmental factors in three Populus shelterbelts of the Hexi Corridor

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