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Monumental architecture at Aguada Fenix and the rise of Maya civilization 期刊论文
NATURE, 2020
作者:  Bedding, Timothy R.;  Murphy, Simon J.;  Hey, Daniel R.;  Huber, Daniel;  Li, Tanda;  Smalley, Barry;  Stello, Dennis;  White, Timothy R.;  Ball, Warrick H.;  Chaplin, William J.;  Colman, Isabel L.;  Fuller, Jim;  Gaidos, Eric;  Harbeck, Daniel R.;  Hermes, J. J.;  Holdsworth, Daniel L.;  Li, Gang;  Li, Yaguang;  Mann, Andrew W.;  Reese, Daniel R.;  Sekaran, Sanjay;  Yu, Jie;  Antoci, Victoria;  Bergmann, Christoph;  Brown, Timothy M.;  Howard, Andrew W.;  Ireland, Michael J.;  Isaacson, Howard;  Jenkins, Jon M.;  Kjeldsen, Hans;  McCully, Curtis;  Rabus, Markus;  Rains, Adam D.;  Ricker, George R.;  Tinney, Christopher G.;  Vanderspek, Roland K.
收藏  |  浏览/下载:33/0  |  提交时间:2020/07/03

Archaeologists have traditionally thought that the development of Maya civilization was gradual, assuming that small villages began to emerge during the Middle Preclassic period (1000-350 bc  dates are calibrated throughout) along with the use of ceramics and the adoption of sedentism(1). Recent finds of early ceremonial complexes are beginning to challenge this model. Here we describe an airborne lidar survey and excavations of the previously unknown site of Aguada Fenix (Tabasco, Mexico) with an artificial plateau, which measures 1,400 m in length and 10 to 15 m in height and has 9 causeways radiating out from it. We dated this construction to between 1000 and 800 bc using a Bayesian analysis of radiocarbon dates. To our knowledge, this is the oldest monumental construction ever found in the Maya area and the largest in the entire pre-Hispanic history of the region. Although the site exhibits some similarities to the earlier Olmec centre of San Lorenzo, the community of Aguada Fenix probably did not have marked social inequality comparable to that of San Lorenzo. Aguada Fenix and other ceremonial complexes of the same period suggest the importance of communal work in the initial development of Maya civilization.


Lidar survey of the Maya lowlands uncovers the monumental site of Aguada Fenix, which dates to around 1000-800 bc and points to the role of communal construction in the development of Maya civilization.


  
Elephants limit aboveground carbon gains in African savannas 期刊论文
GLOBAL CHANGE BIOLOGY, 2019, 25 (4) : 1368-1382
作者:  Davies, Andrew B.;  Asner, Gregory P.
收藏  |  浏览/下载:11/0  |  提交时间:2019/04/09
aboveground carbon density  carbon cycling  Carnegie Airborne Observatory  herbivory  Kruger National Park  LiDAR  megaherbivore  South Africa  woody encroachment  
Leaf area density from airborne LiDAR: Comparing sensors and resolutions in a temperate broadleaf forest ecosystem 期刊论文
FOREST ECOLOGY AND MANAGEMENT, 2019, 433: 364-375
作者:  Kamoske, Aaron G.;  Dahlin, Kyla M.;  Stark, Scott C.;  Serbin, Shawn P.
收藏  |  浏览/下载:31/0  |  提交时间:2019/04/09
Airborne LiDAR  Leaf area density  Leaf area index  Forest structure  
Usability of citizen science observations together with airborne laser scanning data in determining the habitat preferences of forest birds 期刊论文
FOREST ECOLOGY AND MANAGEMENT, 2018, 430: 498-508
作者:  Mononen, L.;  Auvinen, A. -P.;  Packalen, P.;  Virkkala, R.;  Valbuena, R.;  Bohlin, I.;  Valkama, J.;  Vihervaara, P.
收藏  |  浏览/下载:8/0  |  提交时间:2019/04/09
Citizen Science (CS)  Airborne laser scanning (ALS)  Light detection and ranging (LiDAR)  Forest bird habitats  Habitat modelling  
Estimating aboveground carbon density across forest landscapes of Hawaii: Combining FIA plot-derived estimates and airborne LiDAR 期刊论文
FOREST ECOLOGY AND MANAGEMENT, 2018, 424: 323-337
作者:  Hughes, R. Flint;  Asner, Gregory P.;  Baldwin, James A.;  Mascaro, Joseph;  Bufil, Lori K. K.;  Knapp, David E.
收藏  |  浏览/下载:8/0  |  提交时间:2019/04/09
Forest carbon  Inventories  LiDAR  Hawai'  i  Hawai'  i Experimental Tropical Forest  Invasive species  Carnegie Airborne Observatory  
Carbon storage potential in degraded forests of Kalimantan, Indonesia 期刊论文
ENVIRONMENTAL RESEARCH LETTERS, 2018, 13 (9)
作者:  Ferraz, Antonio;  Saatchi, Sassan;  Xu, Liang;  Hagen, Stephen;  Chave, Jerome;  Yu, Yifan;  Meyer, Victoria;  Garcia, Mariano;  Silva, Carlos;  Roswintiart, Orbita;  Samboko, Ari;  Sist, Plinio;  Walker, Sarah;  Pearson, Timothy R. H.;  Wijaya, Arief;  Sullivan, Franklin B.;  Rutishauser, Ervan;  Hoekman, Dirk;  Ganguly, Sangram
收藏  |  浏览/下载:14/0  |  提交时间:2019/04/09
carbon  aboveground biomass mapping  forest degradation  peat swamp forests  airborne lidar  Kalimantan  Indonesia  
Topography shapes the structure, composition and function of tropical forest landscapes 期刊论文
ECOLOGY LETTERS, 2018, 21 (7) : 989-1000
作者:  Jucker, Tommaso;  Bongalov, Boris;  Burslem, David F. R. P.;  Nilus, Reuben;  Dalponte, Michele;  Lewis, Simon L.;  Phillips, Oliver L.;  Qie, Lan;  Coomes, David A.
收藏  |  浏览/下载:13/0  |  提交时间:2019/04/09
Aboveground carbon density  airborne laser scanning (or LiDAR)  biodiversity  canopy height  gap fraction  hyperspectral imaging  remote sensing  terrain elevation  slope and curvature  wood density  
Quantifying long-term changes in carbon stocks and forest structure from Amazon forest degradation 期刊论文
ENVIRONMENTAL RESEARCH LETTERS, 2018, 13 (6)
作者:  Rappaport, Danielle I.;  Morton, Douglas C.;  Longo, Marcos;  Keller, Michael;  Dubayah, Ralph;  dos-Santos, Maiza Nara
收藏  |  浏览/下载:12/0  |  提交时间:2019/04/09
aboveground biomass  forest structure  habitat  understory fires  carbon cycling  airborne lidar  REDD  
Synergistic use of Landsat 8 OLI image and airborne LiDAR data for above-ground biomass estimation in tropical lowland rainforests 期刊论文
FOREST ECOLOGY AND MANAGEMENT, 2017, 406
作者:  Phua, Mui-How;  Johari, Shazrul Azwan;  Wong, Ong Cieh;  Ioki, Keiko;  Mahali, Maznah;  Nilus, Reuben;  Coomes, David A.;  Maycock, Colin R.;  Hashim, Mazlan
收藏  |  浏览/下载:10/0  |  提交时间:2019/04/09
Tropical forest  Above-ground biomass  Landsat 8 OLI  Airborne LiDAR  Borneo  REDD  
Effects of long-term rainfall decline on the structure and functioning of Hawaiian forests 期刊论文
ENVIRONMENTAL RESEARCH LETTERS, 2017, 12 (9)
作者:  Barbosa, Jomar M.;  Asner, Gregory P.
收藏  |  浏览/下载:6/0  |  提交时间:2019/04/09
climate change  Carnegie Airborne Observatory  EVI  LiDAR  photosynthetic activity  rainfall anomaly  vegetation structure