دورية أكاديمية
Extreme drought impacts have been underestimated in grasslands and shrublands globally
| العنوان: | Extreme drought impacts have been underestimated in grasslands and shrublands globally |
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| المؤلفون: | Smith, Melinda, Wilkins, Kate, Holdrege, Martin, Wilfahrt, Peter, Collins, Scott, Knapp, Alan, Sala, Osvaldo, Dukes, Jeffrey, Phillips, Richard, Yahdjian, Laura, Gherardi, Laureano, Ohlert, Timothy, Beier, Claus, Fraser, Lauchlan, Jentsch, Anke, Loik, Michael, Maestre, Fernando, Power, Sally, Yu, Qiang, Felton, Andrew, Munson, Seth, Luo, Yiqi, Abdoli, Hamed, Abedi, Mehdi, Alados, Concepción, Alberti, Juan, Alon, Moshe, An, Hui, Anacker, Brian, Anderson, Maggie, Auge, Harald, Bachle, Seton, Bahalkeh, Khadijeh, Bahn, Michael, Batbaatar, Amgaa, Bauerle, Taryn, Beard, Karen, Behn, Kai, Beil, Ilka, Biancari, Lucio, Blindow, Irmgard, Bondaruk, Viviana Florencia, Borer, Elizabeth, Bork, Edward, Bruschetti, Carlos Martin, Byrne, Kerry, Cahill Jr., James, Calvo, Dianela, Carbognani, Michele, Cardoni, Augusto, Carlyle, Cameron, Castillo-Garcia, Miguel, Chang, Scott, Chieppa, Jeff, Cianciaruso, Marcus, Cohen, Ofer, Cordeiro, Amanda, Cusack, Daniela, Dahlke, Sven, Daleo, Pedro, d'Antonio, Carla, Dietterich, Lee, S. Doherty, Tim, Dubbert, Maren, Ebeling, Anne, Eisenhauer, Nico, Fischer, Felícia, Forte, t'Ai, Gebauer, Tobias, Gozalo, Beatriz, Greenville, Aaron, Guidoni-Martins, Karlo, Hannusch, Heather, Vatsø Haugum, Siri, Hautier, Yann, Hefting, Mariet, Henry, Hugh, Hoss, Daniela, Ingrisch, Johannes, Iribarne, Oscar, Isbell, Forest, Johnson, Yari, Jordan, Samuel, Kelly, Eugene, Kimmel, Kaitlin, Kreyling, Juergen, Kröel-Dulay, György, Kröpfl, Alicia, Kübert, Angelika, Kulmatiski, Andrew, Lamb, Eric, Larsen, Klaus Steenberg, Larson, Julie, Lawson, Jason, Leder, Cintia, Linstädter, Anja, Liu, Jielin, Liu, Shirong, Lodge, Alexandra, Longo, Grisel, Loydi, Alejandro, Luan, Junwei, Curtis Lubbe, Frederick, Macfarlane, Craig, Mackie-Haas, Kathleen, Malyshev, Andrey, Maturano-Ruiz, Adrián, Merchant, Thomas, Metcalfe, Daniel, Mori, Akira, Mudongo, Edwin, Newman, Gregory, Nielsen, Uffe, Nimmo, Dale, Niu, Yujie, Nobre, Paola, O'Connor, Rory, Ogaya, Romà, Oñatibia, Gastón, Orbán, Ildikó, Osborne, Brooke, Otfinowski, Rafael, Pärtel, Meelis, Penuelas, Josep, Peri, Pablo, Peter, Guadalupe, Petraglia, Alessandro, Picon-Cochard, Catherine, Pillar, Valério, Piñeiro-Guerra, Juan Manuel, Ploughe, Laura, Plowes, Robert, Portales-Reyes, Cristy, Prober, Suzanne, Pueyo, Yolanda, Reed, Sasha, Ritchie, Euan, Rodríguez, Dana Aylén, Rogers, William, Roscher, Christiane, Sánchez, Ana, Santos, Bráulio, Cecilia Scarfó, María, Seabloom, Eric, Shi, Baoku, Souza, Lara, Stampfli, Andreas, Standish, Rachel, Sternberg, Marcelo, Sun, Wei, Sünnemann, Marie, Tedder, Michelle, Thorvaldsen, Pål, Tian, Dashuan, Tielbörger, Katja, Valdecantos, Alejandro, van den Brink, Liesbeth, Vandvik, Vigdis, Vankoughnett, Mathew, Guri Velle, Liv, Wang, Changhui, Wang, Yi, Wardle, Glenda, Werner, Christiane, Wei, Cunzheng, Wiehl, Georg, Williams, Jennifer, Wolf, Amelia, Zeiter, Michaela, Zhang, Fawei, Zhu, Juntao, Zong, Ning, Zuo, Xiaoan |
| المساهمون: | Colorado State University Fort Collins (CSU), Utah State University (USU), University of Minnesota Twin Cities (UMN), University of Minnesota System (UMN), The University of New Mexico Albuquerque, Arizona State University Tempe (ASU), Carnegie Institution for Science, Indiana State University, Universitad de Buenos Aires = University of Buenos Aires Argentina, University of California Berkeley (UC Berkeley), University of California (UC), Unité Mixte de Recherche sur l'Ecosystème Prairial - UMR (UREP), VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) |
| المصدر: | ISSN: 0027-8424. |
| بيانات النشر: | HAL CCSD National Academy of Sciences |
| سنة النشر: | 2024 |
| المجموعة: | Institut National de la Recherche Agronomique: ProdINRA |
| مصطلحات موضوعية: | climate extreme, Drought-Net, International Drought Experiment, productivity, [SDE]Environmental Sciences |
| الوصف: | International audience ; Climate change is increasing the frequency and severity of short-term (~1 y) drought events—the most common duration of drought—globally. Yet the impact of this intensification of drought on ecosystem functioning remains poorly resolved. This is due in part to the widely disparate approaches ecologists have employed to study drought, variation in the severity and duration of drought studied, and differences among ecosystems in vegetation, edaphic and climatic attributes that can mediate drought impacts. To overcome these problems and better identify the factors that modulate drought responses, we used a coordinated distributed experiment to quantify the impact of short-term drought on grassland and shrubland ecosystems. With a standardized approach, we imposed ~a single year of drought at 100 sites on six continents. Here we show that loss of a foundational ecosystem function—aboveground net primary production (ANPP)—was 60% greater at sites that experienced statistically extreme drought (1-in-100-y event) vs. those sites where drought was nominal (historically more common) in magnitude (35% vs. 21%, respectively). This reduction in a key carbon cycle process with a single year of extreme drought greatly exceeds previously reported losses for grasslands and shrublands. Our global experiment also revealed high variability in drought response but that relative reductions in ANPP were greater in drier ecosystems and those with fewer plant species. Overall, our results demonstrate with unprecedented rigor that the global impacts of projected increases in drought severity have been significantly underestimated and that drier and less diverse sites are likely to be most vulnerable to extreme drought. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| العلاقة: | hal-04538785; https://hal.inrae.fr/hal-04538785Test; WOS: 001183208000001 |
| DOI: | 10.1073/pnas.2309881120 |
| الإتاحة: | https://doi.org/10.1073/pnas.2309881120Test https://hal.inrae.fr/hal-04538785Test |
| حقوق: | http://creativecommons.org/licenses/by-nc-ndTest/ |
| رقم الانضمام: | edsbas.B2E4962B |
| قاعدة البيانات: | BASE |
| DOI: | 10.1073/pnas.2309881120 |
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