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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:30/0  |  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.


  
Weakened growth of cropland-N2O emissions in China associated with nationwide policy interventions 期刊论文
GLOBAL CHANGE BIOLOGY, 2019, 25 (11) : 3706-3719
作者:  Shang, Ziyin;  Zhou, Feng;  Smith, Pete;  Saikawa, Eri;  Ciais, Philippe;  Chang, Jinfeng;  Tian, Hanqin;  Del Grosso, Stephen J.;  Ito, Akihiko;  Chen, Minpeng;  Wang, Qihui;  Bo, Yan;  Cui, Xiaoqing;  Castaldi, Simona;  Juszczak, Radoslaw;  Kasimir, Asa;  Magliulo, Vincenzo;  Medinets, Sergiy;  Medinets, Volodymyr;  Rees, Robert M.;  Wohlfahrt, Georg;  Sabbatini, Simone
收藏  |  浏览/下载:19/0  |  提交时间:2019/11/27
agricultural management  agricultural soils  emission inventory  flux upscaling  land surface model  nitrous oxide  policy analysis  temporal trend  
A single-cell RNA-seq survey of the developmental landscape of the human prefrontal cortex 期刊论文
NATURE, 2018, 555 (7697) : 524-+
作者:  Zhong, Suijuan;  Zhang, Shu;  Fan, Xiaoying;  Wu, Qian;  Yan, Liying;  Dong, Ji;  Zhang, Haofeng;  Li, Long;  Sun, Le;  Pan, Na;  Xu, Xiaohui;  Tang, Fuchou;  Zhang, Jun;  Qiao, Jie;  Wang, Xiaoqun
收藏  |  浏览/下载:12/0  |  提交时间:2019/11/27
Valuing urban green spaces in mitigating climate change: A city-wide estimate of aboveground carbon stored in urban green spaces of China's Capital 期刊论文
GLOBAL CHANGE BIOLOGY, 2019, 25 (5) : 1717-1732
作者:  Sun, Yan;  Xie, Shuai;  Zhao, Shuqing
收藏  |  浏览/下载:14/0  |  提交时间:2019/11/26
carbon stock  landscape structure  spatial distribution  threshold  urban ecosystems  urbanization intensity  
Assessing climate change associated sea-level rise impacts on sea turtle nesting beaches using drones, photogrammetry and a novel GPS system 期刊论文
GLOBAL CHANGE BIOLOGY, 2019, 25 (2) : 753-762
作者:  Varela, Miguel R.;  Patricio, Ana R.;  Anderson, Karen;  Broderick, Annette C.;  DeBell, Leon;  Hawkes, Lucy A.;  Tilley, Dominic;  Snape, Robin T. E.;  Westoby, Matthew J.;  Godley, Brendan J.
收藏  |  浏览/下载:9/0  |  提交时间:2019/04/09
climate change  drones  photogrammetry  Piksi  remote sensing  sea turtles  sea-level rise  UAV  
Policy distortions, farm size, and the overuse of agricultural chemicals in China 期刊论文
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2018, 115 (27) : 7010-7015
作者:  Wu, Yiyun;  Xi, Xican;  Tang, Xin;  Luo, Deming;  Gu, Baojing;  Lam, Shu Kee;  Vitousek, Peter M.;  Chen, Deli
收藏  |  浏览/下载:9/0  |  提交时间:2019/11/27
crop yield  environmental protection  fertilizer use efficiency  socioeconomic barriers  urbanization  
Extremely low genetic diversity across mangrove taxa reflects past sea level changes and hints at poor future responses 期刊论文
GLOBAL CHANGE BIOLOGY, 2018, 24 (4) : 1741-1748
作者:  Guo, Zixiao;  Li, Xinnian;  He, Ziwen;  Yang, Yuchen;  Wang, Wenqing;  Zhong, Cairong;  Greenberg, Anthony J.;  Wu, Chung-I;  Duke, Norman C.;  Shi, Suhua
收藏  |  浏览/下载:5/0  |  提交时间:2019/04/09
dieback  effective population size  genetic diversity  human disturbance  mangroves  sea level rise