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科研机构
北京大学 [4317]
内容类型
期刊论文 [3423]
其他 [863]
会议论文 [31]
发表日期
2017 [241]
2016 [298]
2015 [316]
2014 [346]
2013 [296]
2012 [247]
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专题:北京大学
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Early Holocene palaeoseasonality inferred from the stable isotope composition of Unio shells from Catalhoyuk, Turkey
期刊论文
ENVIRONMENTAL ARCHAEOLOGY, 2017
Lewis, Jonathan P.
;
Leng, Melanie J.
;
Dean, Jonathan R.
;
Marciniak, Arkadiusz
;
Mayer, Daniella E. Bar-Yosef
;
Wu, Xiaohong
收藏
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浏览/下载:26/0
  |  
提交时间:2017/12/03
Catalhoyuk
Konya
Unio
Seasonal
Palaeoclimate
Stable isotopes
Neolithic
Holocene
EASTERN MEDITERRANEAN REGION
GLACIAL-INTERGLACIAL TRANSITION
ABRUPT CLIMATE-CHANGE
8.2 KA EVENT
KONYA BASIN
AEGEAN SEA
SOUTHWEST ASIA
NORTH-ATLANTIC
LAKE GOLHISAR
SAPROPEL S1
Global patterns of interaction specialization in bird-flower networks
期刊论文
JOURNAL OF BIOGEOGRAPHY, 2017
Zanata, Thais B.
;
Dalsgaard, Bo
;
Passos, Fernando C.
;
Cotton, Peter A.
;
Roper, James J.
;
Maruyama, Pietro K.
;
Fischer, Erich
;
Schleuning, Matthias
;
Gonzalez, Ana M. Martin
;
Vizentin-Bugoni, Jeferson
;
Franklin, Donald C.
;
Abrahamczyk, Stefan
;
Alarcon, Ruben
;
Araujo, Andrea C.
;
Araujo, Francielle P.
;
de Azevedo-Junior, Severino M.
;
Baquero, Andrea C.
;
Boehning-Gaese, Katrin
;
Carstensen, Daniel W.
;
Chupil, Henrique
;
Coelho, Aline G.
;
Faria, Rogerio R.
;
Horak, David
;
Ingversen, Tanja T.
;
Janecek, Stepan
;
Kohler, Glauco
;
Lara, Carlos
;
Las
收藏
  |  
浏览/下载:31/0
  |  
提交时间:2017/12/03
honeyeaters
hummingbirds
modularity
niche partitioning
ornithophily
plant-animal interactions
specialization
sunbirds
SEED-DISPERSAL NETWORKS
NECTAR-FEEDING BIRDS
POLLINATION SYSTEMS
ECOLOGICAL SPECIALIZATION
MUTUALISTIC NETWORKS
SPECIES RICHNESS
RAIN-FOREST
PLANT
HUMMINGBIRDS
EVOLUTIONARY
Organophosphorus Flame Retardants in Pregnant Women and Their Transfer to Chorionic Villi
期刊论文
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2017
Zhao, Fanrong
;
Chen, Mo
;
Gao, Fumei
;
Shen, Huan
;
Hu, Jianying
收藏
  |  
浏览/下载:7/0
  |  
提交时间:2017/12/03
POLYBROMINATED DIPHENYL ETHERS
HOUSE-DUST CONCENTRATIONS
MESSENGER-RNA EXPRESSION
TANDEM MASS-SPECTROMETRY
HUMAN ADIPOSE-TISSUE
POLYCHLORINATED-BIPHENYLS
TRIPHENYL PHOSPHATE
SURFACE WATERS
HUMAN PLACENTA
TRIS(1,3-DICHLORO-2-PROPYL) PHOSPHATE
Plausible rice yield losses under future climate warming
期刊论文
NATURE PLANTS, 2017
Zhao, Chuang
;
Piao, Shilong
;
Wang, Xuhui
;
Huang, Yao
;
Ciais, Philippe
;
Elliott, Joshua
;
Huang, Mengtian
;
Janssens, Ivan A.
;
Li, Tao
;
Lian, Xu
;
Liu, Yongwen
;
Mueller, Christoph
;
Peng, Shushi
;
Wang, Tao
;
Zeng, Zhenzhong
;
Penuelas, Josep
收藏
  |  
浏览/下载:110/0
  |  
提交时间:2017/12/03
INFRARED HEATER
CARBON-DIOXIDE
FOOD SECURITY
CROP YIELDS
IMPACT
METAANALYSIS
ADAPTATION
ECOSYSTEM
MODELS
MAIZE
Variability and quasi-decadal changes in the methane budget over the period 2000-2012
期刊论文
ATMOSPHERIC CHEMISTRY AND PHYSICS, 2017
Saunois, Marielle
;
Bousquet, Philippe
;
Poulter, Ben
;
Peregon, Anna
;
Ciais, Philippe
;
Canadell, Josep G.
;
Dlugokencky, Edward J.
;
Etiope, Giuseppe
;
Bastviken, David
;
Houweling, Sander
;
Janssens-Maenhout, Greet
;
Tubiello, Francesco N.
;
Castaldi, Simona
;
Jackson, Robert B.
;
Alexe, Mihai
;
Arora, Vivek K.
;
Beerling, David J.
;
Bergamaschi, Peter
;
Blake, Donald R.
;
Brailsford, Gordon
;
Bruhwiler, Lori
;
Crevoisier, Cyril
;
Crill, Patrick
;
Covey, Kristofer
;
Frankenberg, Christian
;
Gedney, Nicola
;
Hoeglund-Isaksson, Lena
;
Ishizawa, Misa
;
Ito, Aki
收藏
  |  
浏览/下载:109/0
  |  
提交时间:2017/12/03
GLOBAL ATMOSPHERIC ETHANE
NATURAL-GAS PRODUCTION
PROCESS-BASED MODEL
CH4 EMISSIONS
FOSSIL-FUEL
GROWTH-RATE
INTERANNUAL VARIABILITY
TERRESTRIAL ECOSYSTEMS
BIOGEOCHEMISTRY MODEL
SURFACE MEASUREMENTS
基于BP神经网络的宁夏耕地资源动态变化及预测
期刊论文
湖南农业科学, 2017
李永梅
;
张立根
;
海云瑞
;
董越
收藏
  |  
浏览/下载:3/0
  |  
提交时间:2017/12/03
耕地资源
BP神经网络
主成分分析
宁夏
cultivated land resource
BP neural network
principal component analysis
Ningxia
Atmospheric deposition, CO2, and change in the land carbon sink
期刊论文
SCIENTIFIC REPORTS, 2017
Fernandez-Martinez, M.
;
Vicca, S.
;
Janssens, I. A.
;
Ciais, P.
;
Obersteiner, M.
;
Bartrons, M.
;
Sardans, J.
;
Verger, A.
;
Canadell, J. G.
;
Chevallier, F.
;
Wang, X.
;
Bernhofer, C.
;
Curtis, P. S.
;
Gianelle, D.
;
Gruewald, T.
;
Heinesch, B.
;
Ibrom, A.
;
Knohl, A.
;
Laurila, T.
;
Law, B. E.
;
Limousin, J. M.
;
Longdoz, B.
;
Loustau, D.
;
Mammarella, I.
;
Matteucci, G.
;
Monson, R. K.
;
Montagnani, L.
;
Moors, E. J.
;
Munger, J. W.
;
Papale, D.
;
Piao, S. L.
;
Penuelas, J.
收藏
  |  
浏览/下载:7/0
  |  
提交时间:2017/12/03
WATER-USE EFFICIENCY
ELEVATED CO2
NUTRIENT AVAILABILITY
NITROGEN DEPOSITION
SULFUR DEPOSITION
FOREST ECOSYSTEMS
SOIL RESPIRATION
UNITED-STATES
ACID-RAIN
DECOMPOSITION
A biomarker record of temperature and phytoplankton community structure in the Okinawa Trough since the last glacial maximum
期刊论文
QUATERNARY RESEARCH, 2017
Ruan, Jiaping
;
Xu, Yunping
;
Ding, Su
;
Wang, Yinghui
;
Zhang, Xinyu
收藏
  |  
浏览/下载:4/0
  |  
提交时间:2017/12/03
Kuroshio Current
Okinawa Trough
Sea surface temperature
U-37(K&apos
TEX86
SEA-SURFACE TEMPERATURE
SOUTH CHINA SEA
ISOPRENOID TETRAETHER LIPIDS
NORTHWESTERN PACIFIC-OCEAN
KUROSHIO CURRENT
LATE QUATERNARY
BLACK-SEA
ORGANIC-MATTER
PLANKTONIC-FORAMINIFERA
GEOLOGICAL SIGNIFICANCE
)
美国南卡罗来纳州森林湿地十种典型植物凋落叶的分解特征
期刊论文
生态学报, 2017
李巧玲
;
曾辉
收藏
  |  
浏览/下载:7/0
  |  
提交时间:2017/12/03
森林湿地
凋落叶
分解速率常数
初始碳组分
C、N元素
forested wetland
leaf litter
decomposition rate constant
initial carbon fractions
C and N
Dynamic arsenic aging processes and their mechanisms in nine types of Chinese soils
期刊论文
CHEMOSPHERE, 2017
Wang, Yanan
;
Zeng, Xibai
;
Lu, Yahai
;
Bai, Lingyu
;
Su, Shiming
;
Wu, Cuixia
收藏
  |  
浏览/下载:7/0
  |  
提交时间:2017/12/03
Arsenic (As)
Soil types
Aging mechanism
Approximate aging equilibrium time
Kinetic equation fitting
CONTAMINATED SOILS
COMPETITIVE ADSORPTION
SEQUENTIAL EXTRACTION
DIFFUSIVE GRADIENTS
PHOSPHATE RELEASE
ACTIVATED ALUMINA
SOUTHEAST CHINA
CLAY-MINERALS
BIOACCESSIBILITY
KINETICS
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