Refine
Author
- Anderson, Karen (2)
- Astor, Thomas (2)
- Boer, Matthias M. (2)
- Boschetti, Fabio (2)
- Brazier, Richard E. (2)
- Clark, Patrick E. (2)
- Cramer, Michael D. (2)
- Cunliffe, Andrew M. (2)
- Escarzaga, Stephen M. (2)
- Fisher, Adrian G. (2)
- Gdulová, Kateřina (2)
- Gillespie, Breahna M. (2)
- Graham, Hugh A. (2)
- Griebel, Anne (2)
- Hanan, Niall P. (2)
- Hanggito, Muhammad S. (2)
- Haselberger, Stefan (2)
- Havrilla, Caroline A. (2)
- Ji, Wenjie (2)
- Karl, Jason W. (2)
- Kirchhoff, Mario (2)
- Kraushaar, Sabine (2)
- Lyons, Mitchell B. (2)
- Marzolff, Irene (2)
- Mauritz, Marguerite E. (2)
- McIntire, Cameron D. (2)
- Metzen, Daniel (2)
- Myers-Smith, Isla H. (2)
- Power, Simon C. (2)
- Prošek, Jiří (2)
- Sanz-Ablanedo, Enoc (2)
- Sauer, Katherine J. (2)
- Schulze-Brüninghoff, Damian (2)
- Sitch, Stephen (2)
- Smit, Julian L. (2)
- Suárez-Seoane, Susana (2)
- Visser, Fleur (2)
- Wachendorf, Michael (2)
- Wirnsberger, Hannes (2)
- Wojcikiewicz, Robert (2)
- Abé, Christoph (1)
- Agartz, Ingrid (1)
- Akudjedu, Theophilus N. (1)
- Allen, Nicholas B. (1)
- Ames, David (1)
- Andre, Aleman (1)
- Andreassen, Ole A. (1)
- Arias Vásquez, Alejandro (1)
- Armstrong, Nicola J. (1)
- Bastin, Mark E. (1)
- Batalla, Albert (1)
- Bauer, Jochen (1)
- Baune, Bernhard T. (1)
- Baur, Ramona (1)
- Bergo, Felipe (1)
- Biederman, Joseph (1)
- Blaine, Sara K. (1)
- Boedhoe, Premika (1)
- Bose, Anushree (1)
- Bralten, Janita (1)
- Brandeis, Daniel (1)
- Brem, Silvia (1)
- Brodaty, Henry (1)
- Brooks, Samantha J. (1)
- Bröhl, Henrieke (1)
- Buitelaar, Jan K. (1)
- Busatto Filho, Geraldo (1)
- Bøen, Erlend (1)
- Bülow, Robin (1)
- Bürger, Christian (1)
- Calhoun, Vince D. (1)
- Calvo, Anna (1)
- Calvo, Leonor (1)
- Calvo, Leonor G. (1)
- Canales-Rodrı́guez, Erick Jorge (1)
- Canive, Jose M. (1)
- Cannon, Dara M. (1)
- Caparelli, Elisabeth C. (1)
- Castellanos, Francisco X. (1)
- Cavalleri, Gianpiero L. (1)
- Cendes, Fernando (1)
- Cervenka, Simon (1)
- Chaim-Avancini, Tiffany Moukbel (1)
- Chantiluke, Kaylita (1)
- Chen, Qun-lin (1)
- Chen, Xiayu (1)
- Cheng, Yuqi (1)
- Christakou, Anastasia (1)
- Clark, Vincent P. (1)
- Coghill, David (1)
- Collste, Karin (1)
- Connolly, Colm G. (1)
- Conzelmann, Annette (1)
- Cousijn, Janna (1)
- Crivello, Fabrice (1)
- Crow, Tim (1)
- Cubillo, Ana (1)
- Cόrdova-Palomera, Aldo (1)
- Dannlowski, Udo (1)
- De Zubicaray, Greig (1)
- Deary, Ian J. (1)
- Delanty, Norman (1)
- Demeter, Damion V. (1)
- Di Martino, Adriana (1)
- Dickie, Erin W (1)
- Dietsche, Bruno (1)
- Doan, N. Trung (1)
- Doherty, Colin P. (1)
- Doyle, Alysa (1)
- Durston, Sarah (1)
- Earl, Eric (1)
- Ehrlich, Stefan (1)
- Eijk, Liza van (1)
- Ekman, Carl Johan (1)
- Elvsåshagen, Torbjørn (1)
- Encinas-Lara, Miguel S. (1)
- Encinas-Lara, Miguel Sebastián (1)
- Engberg, Goran (1)
- Epstein, Jeffery N. (1)
- Erhardt, Sophie (1)
- Fair, Damien A. (1)
- Faraone, Stephen V. (1)
- Farde, Lars (1)
- Fatouros-Bergman, Helena (1)
- Fernndez, Guillen (1)
- Fernández-Guisuraga, José M. (1)
- Fernández-Guisuraga, José Manuel (1)
- Fisher, Simon E. (1)
- Flyckt, Lena (1)
- Forster, Katharina (1)
- Foxe, John J. (1)
- Francks, Clyde (1)
- Franke, Barbara (1)
- Fuentes-Claramonte, Paola (1)
- Fullerton, Janice M. (1)
- Garavan, Hugh (1)
- Garcia, Danielle do Santos (1)
- Glahn, David C. (1)
- Gotlib, Ian H. (1)
- Goudriaan, Anna E. (1)
- Grabe, Hans Jörgen (1)
- Groenewold, Nynke A. (1)
- Grotegerd, Dominik (1)
- Gruber, Oliver (1)
- Guadalupe, Tulio (1)
- Gurholt, Tiril (1)
- Haavik, Jan (1)
- Hahn, Tim (1)
- Hansell, Narelle K. (1)
- Harris, Mathew A. (1)
- Hartman, Catharina (1)
- Hedberg, Mikael (1)
- Heilman, Phil (1)
- Heilman, Philip (1)
- Hernandez, Maria del Carmen Valdes (1)
- Heslenfeld, Dirk (1)
- Hester, Robert (1)
- Hibar, Derrek Paul (1)
- Ho, Beng-Choon (1)
- Ho, Tiffany C. (1)
- Hoekstra, Pieter J. (1)
- Hoogman, Martine (1)
- Hovik, Marie F. (1)
- Howells, Fleur M. (1)
- Hugdahl, Kenneth (1)
- Huyser, Chaim (1)
- Ingvar, Martind (1)
- Irwin, Lourdes (1)
- Ishikawa, Akari (1)
- Jahanshad, Neda (1)
- James, Anthony (1)
- Jean-Paul, Fouche (1)
- Jernigan, Terry L. (1)
- Jönsson, Erik G. (1)
- Kahler, Claas (1)
- Kaleda, Vasily (1)
- Kelly, Clare (1)
- Kerich, Michael (1)
- Keshavan, Matcheri S (1)
- Khadka, Sabin (1)
- Kircher, Tilo (1)
- Kohls, Gregor (1)
- Kong, Xiang-Zhen (1)
- Konrad, Kerstin (1)
- Korucuoglu, Ozlem (1)
- Krug, Axel (1)
- Krämer, Bernd (1)
- Kwon, Jun Soo (1)
- Lambregts-Rommelse, Nanda (1)
- Landén, Mikael (1)
- Lebedeva, Irina (1)
- Lenroot, Rhoshel (1)
- Lesch, Klaus-Peter J. (1)
- Li, Qinqin (1)
- Lim, Kelvin O. (1)
- Liu, Jia (1)
- Lochner, Christine (1)
- London, Edythe D. (1)
- Lonning, Vera (1)
- Lorenzetti, Valentina (1)
- Luciano, Michelle (1)
- Luijten, Maartje (1)
- Lundervold, Astri J. (1)
- Lázaro, Luisa (1)
- MacMaster, Frank P. (1)
- Mackey, Scott (1)
- Maingault, Sophie (1)
- Malmqvist, Anna (1)
- Malpas, Charles B. (1)
- Malt, Ulrik F. (1)
- Maniega, Susana Munoz (1)
- Martin-Santos, Rocio (1)
- Mataix-Cols, David (1)
- Mathias, Samuel R. (1)
- Mayer, Andrew R. (1)
- Mazoyer, Bernard (1)
- McCarthy, Hazel (1)
- McDonald, Colm (1)
- McLellan, Quinn (1)
- McMahon, Katie L. (1)
- McPhilemy, Genevieve (1)
- Meer, Dennis van der (1)
- Mitchell, Philip B. (1)
- Momenan, Reza (1)
- Morales, Angelica M. (1)
- Moreira, José Carlos Vasques (1)
- Mueller, Bryon A. (1)
- Méndez-Barroso, Luis A. (1)
- Méndez-Barroso, Luis Arturo (1)
- Narayanaswamy, Janardhanan C. (1)
- Nerland, Stener (1)
- Nestor, Liam (1)
- Nigg, Joel T. (1)
- Nordvik, Jan-Egil (1)
- Novotny, Stephanie (1)
- Oberwelland, Eileen (1)
- Oosterlaan, Jaap (1)
- Oranje, Bob (1)
- Orhan, Funda (1)
- Orr, Catherine (1)
- Overs, Bronwyn (1)
- O’Gorman, Ruth L. (1)
- Pauli, Paul (1)
- Paulus, Martin (1)
- Piehl, Fredrik (1)
- Plessen, Kerstin (1)
- Polier, Georg von (1)
- Pomarol-Clotet, Edith (1)
- Qiu, Jiang (1)
- Radua, Joaquim (1)
- Ramos-Quiroga, J. Antoni (1)
- Reddy, Y.C. Janardhan (1)
- Reif, Andreas (1)
- Roberts, Gloria (1)
- Rosa, Pedro (1)
- Rubia, Katya (1)
- Sacchet, Matthew D. (1)
- Sachdev, Perminder S. (1)
- Salvador, Raymond (1)
- Saud, Alhusaini (1)
- Schmaal, Lianne (1)
- Schweren, Lisanne (1)
- Schwieler, Lilly (1)
- Seidman, Larry J. (1)
- Seitz, Jochen (1)
- Serpa, Mauricio Henriques (1)
- Shaw, Philip (1)
- Shumskaya, Elena (1)
- Silk, Timothy J. (1)
- Simmons, Alan N. (1)
- Simulionyte, Egle (1)
- Sinha, Rajita (1)
- Sjoerds, Zsuzsika (1)
- Smelror, Runar Elle (1)
- Soliva, Joan Carlos (1)
- Solowij, Nadia (1)
- Sponheim, Scott R. (1)
- Steele, Caiti M. (1)
- Steele, Caitriana M. (1)
- Stein, Dan J. (1)
- Stein, Elliot A. (1)
- Stevens, Michael (1)
- Strike, Lachlan T. (1)
- Sudre, Gustavo (1)
- Sui, Jing (1)
- Tamm, Leanne (1)
- Temmingh, Hendrik S. (1)
- Thoma, Robert J. (1)
- Thompson, Paul M. (1)
- Tomyshev, Alexander S. (1)
- Tronchin, Giulia (1)
- Turner, Jessica A. (1)
- Tzourio-Mazoyer, Nathalie (1)
- Uhlmann, Anne (1)
- Vance, Alasdair (1)
- Vargas Zesati, Sergio A. (1)
- Vargas, Sergio A. (1)
- Veer, Ilya M. (1)
- Veltman, Dick J. (1)
- Venkatasubramanian, Ganesan (1)
- Victorsson, Pauliina (1)
- Vilarroya, Oscar (1)
- Villarreal, Miguel (1)
- Villarreal, Miguel L. (1)
- Vives-Gilabert, Yolanda (1)
- Voineskos, Aristotle N. (1)
- Vuletic, Daniella (1)
- Völzke, Henry (1)
- Walitza, Susanne (1)
- Walter, Henrik (1)
- Walton, Esther (1)
- Wardlaw, Joanna M. (1)
- Wen, Wei (1)
- Westlye, Lars T. (1)
- Whelan, Christopher D. (1)
- White, Tonya (1)
- Wiers, Reinout W. (1)
- Wittfeld, Katharina (1)
- Wright, Margaret J. (1)
- Yang, Tony T. (1)
- Yasuda, Clarissa L. (1)
- Yoncheva, Yuliya (1)
- Yucel, Murat (1)
- Yun, Je-Yeon (1)
- Zanetti, Marcus Vinicius (1)
- Zeeuw, Patrick de (1)
- Zhen, Zonglei (1)
- Zhu, Xing-xing (1)
- Ziegler, Georg Christoph (1)
- Zierhut, Kathrin (1)
- Zwiers, Marcel P. (1)
- de Bruttopilo, Sara Ambrosino (1)
- van Erp, Theo G.M. (1)
- van Holst, Ruth J. (1)
- van den Heuvel, Odile (1)
- Šímová, Petra (1)
- Šı́mová, Petra (1)
Language
- English (3)
Has Fulltext
- yes (3)
Is part of the Bibliography
- no (3)
Keywords
- Canopy height model (1)
- UAV (1)
- drone (1)
- fine spatial resolution remote sensing (1)
- plant height (1)
- structure-from-motion photogrammetry (1)
Institute
- Geographie (1)
- Geowissenschaften (1)
- Medizin (1)
Mapping cortical brain asymmetry in 17,141 healthy individuals worldwide via the ENIGMA Consortium
(2017)
Kong, Xiang-Zhen ; Mathias, Samuel R. ; Guadalupe, Tulio ; Abé, Christoph ; Agartz, Ingrid ; Akudjedu, Theophilus N. ; Andre, Aleman ; Saud, Alhusaini ; Allen, Nicholas B. ; Ames, David ; Andreassen, Ole A. ; Arias Vásquez, Alejandro ; Armstrong, Nicola J. ; Bergo, Felipe ; Bastin, Mark E. ; Batalla, Albert ; Bauer, Jochen ; Baune, Bernhard T. ; Baur, Ramona ; Biederman, Joseph ; Blaine, Sara K. ; Boedhoe, Premika ; Bøen, Erlend ; Bose, Anushree ; Bralten, Janita ; Brandeis, Daniel ; Brem, Silvia ; Brodaty, Henry ; Bröhl, Henrieke ; Brooks, Samantha J. ; Buitelaar, Jan K. ; Bürger, Christian ; Bülow, Robin ; Calhoun, Vince D. ; Calvo, Anna ; Canales-Rodrı́guez, Erick Jorge ; Canive, Jose M. ; Cannon, Dara M. ; Caparelli, Elisabeth C. ; Castellanos, Francisco X. ; Cavalleri, Gianpiero L. ; Cendes, Fernando ; Chaim-Avancini, Tiffany Moukbel ; Chantiluke, Kaylita ; Chen, Qun-lin ; Chen, Xiayu ; Cheng, Yuqi ; Christakou, Anastasia ; Clark, Vincent P. ; Coghill, David ; Connolly, Colm G. ; Conzelmann, Annette ; Cόrdova-Palomera, Aldo ; Cousijn, Janna ; Crow, Tim ; Cubillo, Ana ; Dannlowski, Udo ; de Bruttopilo, Sara Ambrosino ; Zeeuw, Patrick de ; Deary, Ian J. ; Delanty, Norman ; Demeter, Damion V. ; Di Martino, Adriana ; Dickie, Erin W ; Dietsche, Bruno ; Doan, N. Trung ; Doherty, Colin P. ; Doyle, Alysa ; Durston, Sarah ; Earl, Eric ; Ehrlich, Stefan ; Ekman, Carl Johan ; Elvsåshagen, Torbjørn ; Epstein, Jeffery N. ; Fair, Damien A. ; Faraone, Stephen V. ; Fatouros-Bergman, Helena ; Fernndez, Guillen ; Busatto Filho, Geraldo ; Flyckt, Lena ; Forster, Katharina ; Jean-Paul, Fouche ; Foxe, John J. ; Fuentes-Claramonte, Paola ; Fullerton, Janice M. ; Garavan, Hugh ; Garcia, Danielle do Santos ; Gotlib, Ian H. ; Goudriaan, Anna E. ; Grabe, Hans Jörgen ; Groenewold, Nynke A. ; Grotegerd, Dominik ; Gruber, Oliver ; Gurholt, Tiril ; Haavik, Jan ; Hahn, Tim ; Hansell, Narelle K. ; Harris, Mathew A. ; Hartman, Catharina ; Hernandez, Maria del Carmen Valdes ; Heslenfeld, Dirk ; Hester, Robert ; Hibar, Derrek Paul ; Ho, Beng-Choon ; Ho, Tiffany C. ; Hoekstra, Pieter J. ; van Holst, Ruth J. ; Hoogman, Martine ; Hovik, Marie F. ; Howells, Fleur M. ; Hugdahl, Kenneth ; Huyser, Chaim ; Ingvar, Martind ; Irwin, Lourdes ; Ishikawa, Akari ; James, Anthony ; Jahanshad, Neda ; Jernigan, Terry L. ; Jönsson, Erik G. ; Kahler, Claas ; Kaleda, Vasily ; Kelly, Clare ; Kerich, Michael ; Keshavan, Matcheri S ; Khadka, Sabin ; Kircher, Tilo ; Kohls, Gregor ; Konrad, Kerstin ; Korucuoglu, Ozlem ; Krämer, Bernd ; Krug, Axel ; Kwon, Jun Soo ; Lambregts-Rommelse, Nanda ; Landén, Mikael ; Lázaro, Luisa ; Lebedeva, Irina ; Lenroot, Rhoshel ; Lesch, Klaus-Peter J. ; Li, Qinqin ; Lim, Kelvin O. ; Liu, Jia ; Lochner, Christine ; London, Edythe D. ; Lonning, Vera ; Lorenzetti, Valentina ; Luciano, Michelle ; Luijten, Maartje ; Lundervold, Astri J. ; Mackey, Scott ; MacMaster, Frank P. ; Maingault, Sophie ; Malpas, Charles B. ; Malt, Ulrik F. ; Mataix-Cols, David ; Martin-Santos, Rocio ; Mayer, Andrew R. ; McCarthy, Hazel ; Mitchell, Philip B. ; Mueller, Bryon A. ; Maniega, Susana Munoz ; Mazoyer, Bernard ; McDonald, Colm ; McLellan, Quinn ; McMahon, Katie L. ; McPhilemy, Genevieve ; Momenan, Reza ; Morales, Angelica M. ; Narayanaswamy, Janardhanan C. ; Moreira, José Carlos Vasques ; Nerland, Stener ; Nestor, Liam ; Nigg, Joel T. ; Nordvik, Jan-Egil ; Novotny, Stephanie ; Oberwelland, Eileen ; O’Gorman, Ruth L. ; Oosterlaan, Jaap ; Oranje, Bob ; Orr, Catherine ; Overs, Bronwyn ; Pauli, Paul ; Paulus, Martin ; Plessen, Kerstin ; Polier, Georg von ; Pomarol-Clotet, Edith ; Qiu, Jiang ; Radua, Joaquim ; Ramos-Quiroga, J. Antoni ; Reddy, Y.C. Janardhan ; Reif, Andreas ; Roberts, Gloria ; Rosa, Pedro ; Rubia, Katya ; Sacchet, Matthew D. ; Sachdev, Perminder S. ; Salvador, Raymond ; Schmaal, Lianne ; Schweren, Lisanne ; Seidman, Larry J. ; Seitz, Jochen ; Serpa, Mauricio Henriques ; Shaw, Philip ; Shumskaya, Elena ; Silk, Timothy J. ; Simmons, Alan N. ; Simulionyte, Egle ; Sinha, Rajita ; Sjoerds, Zsuzsika ; Smelror, Runar Elle ; Soliva, Joan Carlos ; Solowij, Nadia ; Sponheim, Scott R. ; Stein, Dan J. ; Stein, Elliot A. ; Stevens, Michael ; Strike, Lachlan T. ; Sudre, Gustavo ; Sui, Jing ; Tamm, Leanne ; Temmingh, Hendrik S. ; Thoma, Robert J. ; Tomyshev, Alexander S. ; Tronchin, Giulia ; Turner, Jessica A. ; Uhlmann, Anne ; van Erp, Theo G.M. ; van den Heuvel, Odile ; Meer, Dennis van der ; Eijk, Liza van ; Vance, Alasdair ; Veer, Ilya M. ; Veltman, Dick J. ; Venkatasubramanian, Ganesan ; Vilarroya, Oscar ; Vives-Gilabert, Yolanda ; Voineskos, Aristotle N. ; Völzke, Henry ; Vuletic, Daniella ; Walitza, Susanne ; Walter, Henrik ; Walton, Esther ; Wardlaw, Joanna M. ; Wen, Wei ; Westlye, Lars T. ; Whelan, Christopher D. ; White, Tonya ; Wiers, Reinout W. ; Wright, Margaret J. ; Wittfeld, Katharina ; Yang, Tony T. ; Yasuda, Clarissa L. ; Yoncheva, Yuliya ; Yucel, Murat ; Yun, Je-Yeon ; Zanetti, Marcus Vinicius ; Zhen, Zonglei ; Zhu, Xing-xing ; Ziegler, Georg Christoph ; Zierhut, Kathrin ; De Zubicaray, Greig ; Zwiers, Marcel P. ; Glahn, David C. ; Franke, Barbara ; Crivello, Fabrice ; Tzourio-Mazoyer, Nathalie ; Fisher, Simon E. ; Thompson, Paul M. ; Francks, Clyde ; Farde, Lars ; Engberg, Goran ; Erhardt, Sophie ; Cervenka, Simon ; Schwieler, Lilly ; Piehl, Fredrik ; Collste, Karin ; Victorsson, Pauliina ; Malmqvist, Anna ; Hedberg, Mikael ; Orhan, Funda
Cunliffe, Andrew M. ; Anderson, Karen ; Boschetti, Fabio ; Brazier, Richard E. ; Graham, Hugh A. ; Myers-Smith, Isla H. ; Astor, Thomas ; Boer, Matthias M. ; Calvo, Leonor ; Clark, Patrick E. ; Cramer, Michael D. ; Encinas-Lara, Miguel Sebastián ; Escarzaga, Stephen M. ; Fernández-Guisuraga, José Manuel ; Fisher, Adrian G. ; Gdulová, Kateřina ; Gillespie, Breahna M. ; Griebel, Anne ; Hanan, Niall P. ; Hanggito, Muhammad S. ; Haselberger, Stefan ; Havrilla, Caroline A. ; Heilman, Philip ; Ji, Wenjie ; Karl, Jason W. ; Kirchhoff, Mario ; Kraushaar, Sabine ; Lyons, Mitchell B. ; Marzolff, Irene ; Mauritz, Marguerite E. ; McIntire, Cameron D. ; Metzen, Daniel ; Méndez-Barroso, Luis Arturo ; Power, Simon C. ; Prošek, Jiří ; Sanz-Ablanedo, Enoc ; Sauer, Katherine J. ; Schulze-Brüninghoff, Damian ; Šı́mová, Petra ; Sitch, Stephen ; Smit, Julian L. ; Steele, Caitriana M. ; Suárez-Seoane, Susana ; Vargas Zesati, Sergio A. ; Villarreal, Miguel L. ; Visser, Fleur ; Wachendorf, Michael ; Wirnsberger, Hannes ; Wojcikiewicz, Robert
Non-forest ecosystems, dominated by shrubs, grasses and herbaceous plants, provide ecosystem services including carbon sequestration and forage for grazing, yet are highly sensitive to climatic changes. Yet these ecosystems are poorly represented in remotely-sensed biomass products and are undersampled by in-situ monitoring. Current global change threats emphasise the need for new tools to capture biomass change in non-forest ecosystems at appropriate scales. Here we assess whether canopy height inferred from drone photogrammetry allows the estimation of aboveground biomass (AGB) across low-stature plant species sampled through a global site network. We found mean canopy height is strongly predictive of AGB across species, demonstrating standardised photogrammetric approaches are generalisable across growth forms and environmental settings. Biomass per-unit-of-height was similar within, but different among, plant functional types. We find drone-based photogrammetry allows for monitoring of AGB across large spatial extents and can advance understanding of understudied and vulnerable non-forested ecosystems across the globe.
Cunliffe, Andrew M. ; Anderson, Karen ; Boschetti, Fabio ; Brazier, Richard E. ; Graham, Hugh A. ; Myers-Smith, Isla H. ; Astor, Thomas ; Boer, Matthias M. ; Calvo, Leonor G. ; Clark, Patrick E. ; Cramer, Michael D. ; Encinas-Lara, Miguel S. ; Escarzaga, Stephen M. ; Fernández-Guisuraga, José M. ; Fisher, Adrian G. ; Gdulová, Kateřina ; Gillespie, Breahna M. ; Griebel, Anne ; Hanan, Niall P. ; Hanggito, Muhammad S. ; Haselberger, Stefan ; Havrilla, Caroline A. ; Heilman, Phil ; Ji, Wenjie ; Karl, Jason W. ; Kirchhoff, Mario ; Kraushaar, Sabine ; Lyons, Mitchell B. ; Marzolff, Irene ; Mauritz, Marguerite E. ; McIntire, Cameron D. ; Metzen, Daniel ; Méndez-Barroso, Luis A. ; Power, Simon C. ; Prošek, Jiří ; Sanz-Ablanedo, Enoc ; Sauer, Katherine J. ; Schulze-Brüninghoff, Damian ; Šímová, Petra ; Sitch, Stephen ; Smit, Julian L. ; Steele, Caiti M. ; Suárez-Seoane, Susana ; Vargas, Sergio A. ; Villarreal, Miguel ; Visser, Fleur ; Wachendorf, Michael ; Wirnsberger, Hannes ; Wojcikiewicz, Robert
Non-forest ecosystems, dominated by shrubs, grasses and herbaceous plants, provide ecosystem services including carbon sequestration and forage for grazing, and are highly sensitive to climatic changes. Yet these ecosystems are poorly represented in remotely sensed biomass products and are undersampled by in situ monitoring. Current global change threats emphasize the need for new tools to capture biomass change in non-forest ecosystems at appropriate scales. Here we developed and deployed a new protocol for photogrammetric height using unoccupied aerial vehicle (UAV) images to test its capability for delivering standardized measurements of biomass across a globally distributed field experiment. We assessed whether canopy height inferred from UAV photogrammetry allows the prediction of aboveground biomass (AGB) across low-stature plant species by conducting 38 photogrammetric surveys over 741 harvested plots to sample 50 species. We found mean canopy height was strongly predictive of AGB across species, with a median adjusted R2 of 0.87 (ranging from 0.46 to 0.99) and median prediction error from leave-one-out cross-validation of 3.9%. Biomass per-unit-of-height was similar within but different among, plant functional types. We found that photogrammetric reconstructions of canopy height were sensitive to wind speed but not sun elevation during surveys. We demonstrated that our photogrammetric approach produced generalizable measurements across growth forms and environmental settings and yielded accuracies as good as those obtained from in situ approaches. We demonstrate that using a standardized approach for UAV photogrammetry can deliver accurate AGB estimates across a wide range of dynamic and heterogeneous ecosystems. Many academic and land management institutions have the technical capacity to deploy these approaches over extents of 1–10 ha−1. Photogrammetric approaches could provide much-needed information required to calibrate and validate the vegetation models and satellite-derived biomass products that are essential to understand vulnerable and understudied non-forested ecosystems around the globe.
- 1 to 3