干旱区生态环境知识资源中心(Arid): Environmental Controls on the Seasonal Variation in Gas Exchange and Water Balance in a Near-Coastal Mediterranean Pinus halepensis Forest

Arid

DOI	10.3390/f10040313
	Environmental Controls on the Seasonal Variation in Gas Exchange and Water Balance in a Near-Coastal Mediterranean Pinus halepensis Forest
	Fotelli, Mariangela N.1; Korakaki, Evangelia 2; Paparrizos, Spyridon A.3; Radoglou, Kalliopi 4; Awada, Tala 5; Matzarakis, Andreas 6,7
通讯作者	Fotelli, Mariangela N.
来源期刊	FORESTS
EISSN	1999-4907
出版年	2019
卷号	10 期号:4
英文摘要	Aleppo pine (Pinus halepensis Mill.) is widespread in most countries of the Mediterranean area. In Greece, Aleppo pine forms natural stands of high economic and ecological importance. Understanding the species' ecophysiological traits is important in our efforts to predict its responses to ongoing climate variability and change. Therefore, the aim of this study was to assess the seasonal dynamic in Aleppo pine gas exchange and water balance on the leaf and canopy levels in response to the intra-annual variability in the abiotic environment. Specifically, we assessed needle gas exchange, water potential and C-13 ratio, as well as tree sap flow and canopy conductance in adult trees of a mature near-coastal semi-arid Aleppo pine ecosystem, over two consecutive years differing in climatic conditions, the latter being less xerothermic. Maximum photosynthesis (A(max)), stomatal conductance (g(s)), sap flow per unit leaf area (Q(l)), and canopy conductance (G(s)) peaked in early spring, before the start of the summer season. During summer drought, the investigated parameters were negatively affected by the increasing potential evapotranspiration (PET) rate and vapor pressure deficit (VPD). Aleppo pine displayed a water-saving, drought avoidance (isohydric) strategy via stomatal control in response to drought. The species benefited from periods of high available soil water, during the autumn and winter months, when other environmental factors were not limiting. Then, on the leaf level, air temperature had a significant effect on A(max), while on the canopy level, VPD and net radiation affected Q(l). Our study demonstrates the plasticity of adult Aleppo pine in this forest ecosystem in response to the concurrent environmental conditions. These findings are important in our efforts to predict and forecast responses of the species to projected climate variability and change in the region.
英文关键词	Aleppo pine Greece photosynthesis water potential delta C-13 sap flow canopy conductance climate
类型	Article
语种	英语
国家	Greece ; France ; USA ; Germany
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000467303600021
WOS关键词	CARBON-ISOTOPE DISCRIMINATION ; ALEPPO PINE ; SAP FLOW ; GROWTH ; RESPONSES ; SEEDLINGS ; TRANSPIRATION ; PRECIPITATION ; DECLINE ; LIGHT
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/2XILL650/215689
作者单位	1.Hellen Agr Org Demeter, Forest Res Inst, Thessaloniki 57006, Greece; 2.Hellen Agr Org Demeter, Inst Mediterranean & Forest Ecosyst, POB 14180, Athens 11528, Greece; 3.Univ Paris Saclay, LSCE IPSL, CEA CNRS UVSQ, F-91191 Gif Sur Yvette, France; 4.Democritus Univ Thrace, Dept Forestry & Management Environm & Nat Resourc, Pantazidou 193, Nea Orestiada 68200, Greece; 5.Univ Nebraska, Sch Nat Resources, 807 Hardin Hall,3310 Holdrege St, Lincoln, NE 68583 USA; 6.Univ Freiburg, Chair Environm Meteorol, Fac Environm & Nat Resources, Werthmannstr 10, D-79085 Freiburg, Germany; 7.German Meteorol Serv, Res Ctr Human Biometeorol, D-79104 Freiburg, Germany
推荐引用方式 GB/T 7714	Fotelli, Mariangela N.,Korakaki, Evangelia,Paparrizos, Spyridon A.,et al. Environmental Controls on the Seasonal Variation in Gas Exchange and Water Balance in a Near-Coastal Mediterranean Pinus halepensis Forest[J],2019,10(4).
APA	Fotelli, Mariangela N.,Korakaki, Evangelia,Paparrizos, Spyridon A.,Radoglou, Kalliopi,Awada, Tala,&Matzarakis, Andreas.(2019).Environmental Controls on the Seasonal Variation in Gas Exchange and Water Balance in a Near-Coastal Mediterranean Pinus halepensis Forest.FORESTS,10(4).
MLA	Fotelli, Mariangela N.,et al."Environmental Controls on the Seasonal Variation in Gas Exchange and Water Balance in a Near-Coastal Mediterranean Pinus halepensis Forest".FORESTS 10.4(2019).