000095548 001__ 95548
000095548 005__ 20210902121735.0
000095548 0247_ $$2doi$$a10.3390/f11070714
000095548 0248_ $$2sideral$$a119604
000095548 037__ $$aART-2020-119604
000095548 041__ $$aeng
000095548 100__ $$aSanchez-Salguero, R.
000095548 245__ $$aShifts in Growth Responses to Climate and Exceeded Drought-Vulnerability Thresholds Characterize Dieback in Two Mediterranean Deciduous Oaks
000095548 260__ $$c2020
000095548 5060_ $$aAccess copy available to the general public$$fUnrestricted
000095548 5203_ $$aDrought stress has induced dieback episodes affecting many forest types and tree species worldwide. However, there is scarce information regarding drought-triggered growth decline and canopy dieback in Mediterranean deciduous oaks. These species face summer drought but have to form new foliage every spring which can make them vulnerable to hotter and drier conditions during that season. Here, we investigated two stands dominated byQuercus frainettoTen. andQuercus canariensisWilld. and situated in southern Italy and Spain, respectively, showing drought-induced dieback since the 2000s. We analyzed how radial growth and its responses to climate differed between non-declining (ND) and declining (D) trees, showing different crown defoliation and coexisting in each stand by: (i) characterizing growth variability and its responsiveness to climate and drought through time, and (ii) simulating growth responses to soil moisture and temperature thresholds using the Vaganov-Shashkin VS-lite model. Our results show how growth responsiveness to climate and drought was higher in D trees for both oak species. Growth has become increasingly limited by warmer-drier climate and decreasing soil moisture availability since the 1990s. These conditions preceded growth drops in D trees indicating they were more vulnerable to warming and aridification trends. Extremely warm and dry conditions during the early growing season trigger dieback. Changes in the seasonal timing of water limitations caused contrasting effects on long-term growth trends of D trees after the 1980s inQ. frainettoand during the 1990s inQ. canariensis. Using growth models allows identifying early-warning signals of vulnerability, which can be compared with shifts in the growth responses to warmer and drier conditions. Our approach facilitates establishing drought-vulnerability thresholds by combining growth models with field records of dieback.
000095548 536__ $$9info:eu-repo/grantAgreement/ES/MCIU/RTI2018-096884-B-C31$$9info:eu-repo/grantAgreement/ES/MCIU/RTI2018-096884-B-C33
000095548 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000095548 590__ $$a2.633$$b2020
000095548 591__ $$aFORESTRY$$b13 / 67 = 0.194$$c2020$$dQ1$$eT1
000095548 592__ $$a0.676$$b2020
000095548 593__ $$aForestry$$c2020$$dQ1
000095548 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000095548 700__ $$aColangelo, M.
000095548 700__ $$aMatias, L.
000095548 700__ $$aRipullone, F.
000095548 700__ $$0(orcid)0000-0003-2436-2922$$aCamarero, J.J.
000095548 773__ $$g11, 7 (2020), 714 [19 pp]$$pForests$$tFORESTS$$x1999-4907
000095548 8564_ $$s1960614$$uhttps://zaguan.unizar.es/record/95548/files/texto_completo.pdf$$yVersión publicada
000095548 8564_ $$s453887$$uhttps://zaguan.unizar.es/record/95548/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000095548 909CO $$ooai:zaguan.unizar.es:95548$$particulos$$pdriver
000095548 951__ $$a2021-09-02-09:38:30
000095548 980__ $$aARTICLE