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Geomorphic transience moderates topographic controls on tropical canopy foliar traits 期刊论文
ECOLOGY LETTERS, 2020, 23 (8) : 1276-1286
作者:  Chadwick, K. Dana;  Asner, Gregory P.
收藏  |  浏览/下载:8/0  |  提交时间:2020/06/01
Foliar traits  imaging spectroscopy  landscape evolution  rock derived nutrients  
Channelization cascade in landscape evolution 期刊论文
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2020, 117 (3) : 1375-1382
作者:  Bonetti, Sara;  Hooshyar, Milad;  Camporeale, Carlo;  Porporato, Amilcare
收藏  |  浏览/下载:7/0  |  提交时间:2020/05/13
ridge and valley patterns  landscape evolution model  detachment limited  river networks  drainage area  
Drainage and Sedimentary Responses to Dynamic Topography 期刊论文
GEOPHYSICAL RESEARCH LETTERS, 2019
作者:  Ding, Xuesong;  Sallee, Tristan;  Flament, Nicolas;  Mallard, Claire;  Rey, Patrice F.
收藏  |  浏览/下载:7/0  |  提交时间:2020/02/17
dynamic topography  landscape evolution  drainage reorganization  source to sink  sequence stratigraphy  
Last appearance of Homo erectus at Ngandong, Java, 117,000-108,000 years ago 期刊论文
NATURE, 2020, 577 (7790) : 381-+
作者:  Haldane, Andy
收藏  |  浏览/下载:30/0  |  提交时间:2020/04/16

Homo erectus is the founding early hominin species of Island Southeast Asia, and reached Java (Indonesia) more than 1.5 million years ago(1,2). Twelve H. erectus calvaria (skull caps) and two tibiae (lower leg bones) were discovered from a bone bed located about 20 m above the Solo River at Ngandong (Central Java) between 1931 and 1933(3,4), and are of the youngest, most-advanced form of H. erectus(5-8). Despite the importance of the Ngandong fossils, the relationship between the fossils, terrace fill and ages have been heavily debated(9-14). Here, to resolve the age of the Ngandong evidence, we use Bayesian modelling of 52 radiometric age estimates to establish-to our knowledg-the first robust chronology at regional, valley and local scales. We used uranium-series dating of speleothems to constrain regional landscape evolution  luminescence, (40)argon/(39)argon (Ar-40/Ar-39) and uranium-series dating to constrain the sequence of terrace evolution  and applied uranium-series and uranium series-electron-spin resonance (US-ESR) dating to non-human fossils to directly date our re-excavation of Ngandong(5,15). We show that at least by 500 thousand years ago (ka) the Solo River was diverted into the Kendeng Hills, and that it formed the Solo terrace sequence between 316 and 31 ka and the Ngandong terrace between about 140 and 92 ka. Non-human fossils recovered during the re-excavation of Ngandong date to between 109 and 106 ka (uranium-series minimum)(16) and 134 and 118 ka (US-ESR), with modelled ages of 117 to 108 thousand years (kyr) for the H. erectus bone bed, which accumulated during flood conditions(3,17). These results negate the extreme ages that have been proposed for the site and solidify Ngandong as the last known occurrence of this long-lived species.


  
Controls on Eolian Landscape Evolution in Fractured Bedrock 期刊论文
GEOPHYSICAL RESEARCH LETTERS, 2019, 46 (21) : 12012-12020
作者:  Perkins, Jonathan P.;  Finnegan, Noah J.;  de Silva, Shanaka L.;  Willis, Michael J.
收藏  |  浏览/下载:5/0  |  提交时间:2020/02/17
wind erosion  planetary landscape evolution  geomorphology  Atacama  
Extreme Memory of Initial Conditions in Numerical Landscape Evolution Models 期刊论文
GEOPHYSICAL RESEARCH LETTERS, 2019, 46 (12) : 6563-6573
作者:  Kwang, J. S.;  Parker, G.
收藏  |  浏览/下载:5/0  |  提交时间:2019/11/26
landscape evolution modeling  dynamic equilibrium  drainage network reorganization  initial conditions  divide migration  lateral channel migration  
Spatio-temporal dynamics of density-dependent dispersal during a population colonisation 期刊论文
ECOLOGY LETTERS, 2019, 22 (4) : 634-644
作者:  De Bona, Sebastiano;  Bruneaux, Matthieu;  Lee, Alex E. G.;  Reznick, David N.;  Bentzen, Paul;  Lopez-Sepulcre, Andres
收藏  |  浏览/下载:3/0  |  提交时间:2019/04/09
Breeding dispersal  emigration  individual-based data  kinship  landscape scale  movement  Poecilia reticulata  rapid evolution  slope of density dependence  translocation  
Three-Dimensional Modeling of the Coevolution of Landscape and Soil Organic Carbon 期刊论文
WATER RESOURCES RESEARCH, 2019, 55 (2) : 1218-1241
作者:  Yan, Qina;  Le, Phong V. V.;  Woo, Dong K.;  Hou, Tingyu;  Filley, Timothy;  Kumar, Praveen
收藏  |  浏览/下载:6/0  |  提交时间:2019/11/26
3-D modeling  soil organic carbon  landscape evolution  biogeochemical transformation  anthropogenic influence  critical zone  
Lithologic Controls on Focused Erosion and Intraplate Earthquakes in the Eastern Tennessee Seismic Zone 期刊论文
GEOPHYSICAL RESEARCH LETTERS, 2018, 45 (18) : 9569-9578
作者:  Gallen, Sean F.;  Thigpen, J. Ryan
收藏  |  浏览/下载:7/0  |  提交时间:2019/04/09
landscape evolution  erodibility  intraplate earthquake  Appalachians  erosion  stress  
Multicriteria Optimization Model to Generate on-DEM Optimal Channel Networks 期刊论文
WATER RESOURCES RESEARCH, 2018, 54 (8) : 5727-5740
作者:  Bizzi, Simone;  Cominola, Andrea;  Mason, Emanuele;  Castelletti, Andrea;  Paik, Kyungrock
收藏  |  浏览/下载:11/0  |  提交时间:2019/04/09
optimal channel network  self-similarity  landscape evolution  profile concavity  digital elevation model  optimization