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科研机构
北京大学 [3402]
内容类型
期刊论文 [2552]
其他 [572]
会议论文 [278]
发表日期
2017 [252]
2016 [355]
2015 [293]
2014 [250]
2013 [248]
2012 [196]
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专题:北京大学
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农民工就业稳定性特征及职业类型的影响——基于全国13省25县100村调查数据的分析
期刊论文
人口与发展, 2017
赵维姗
;
曹广忠
收藏
  |  
浏览/下载:5/0
  |  
提交时间:2017/12/03
农民工
就业稳定性
比例风险模型
职业类型
全国抽样
Positive effects of tree species diversity on litterfall quantity and quality along a secondary successional chronosequence in a subtropical forest
期刊论文
JOURNAL OF PLANT ECOLOGY, 2017
Huang, Yuanyuan
;
Ma, Yinlei
;
Zhao, Ke
;
Niklaus, Pascal A.
;
Schmid, Bernhard
;
He, Jin-Sheng
收藏
  |  
浏览/下载:7/0
  |  
提交时间:2017/12/03
species richness
BEF-China
litterfall
leaf litter C/N
subtropical forest
secondary succession
structural equation models
NET PRIMARY PRODUCTION
STAND DEVELOPMENT
TROPICAL FORESTS
STOICHIOMETRY
NITROGEN
PRODUCTIVITY
RICHNESS
COMPLEMENTARITY
DECOMPOSITION
ASPEN
Historical factors shaped species diversity and composition of Salix in eastern Asia
期刊论文
SCIENTIFIC REPORTS, 2017
Wang, Qinggang
;
Su, Xiangyan
;
Shrestha, Nawal
;
Liu, Yunpeng
;
Wang, Siyang
;
Xu, Xiaoting
;
Wang, Zhiheng
收藏
  |  
浏览/下载:12/0
  |  
提交时间:2017/12/03
POSTGLACIAL DISPERSAL LIMITATION
WATER-ENERGY DYNAMICS
FREEZING RESISTANCE
NICHE CONSERVATISM
PLANT DIVERSITY
SOUTHERN AFRICA
GLOBAL PATTERNS
RICHNESS
CLIMATE
EUROPE
Phytolith carbon sequestration in global terrestrial biomes
期刊论文
SCIENCE OF THE TOTAL ENVIRONMENT, 2017
Song, Zhaoliang
;
Liu, Hongyan
;
Stroemberg, Caroline A. E.
;
Yang, Xiaomin
;
Zhang, Xiaodong
收藏
  |  
浏览/下载:117/0
  |  
提交时间:2017/12/03
Phytolith-occluded carbon (PhytOC)
Biogeochemical carbon sequestration
Carbon sink
Silicon
Terrestrial biomes
OCCLUDED CARBON
BIOGEOCHEMICAL SEQUESTRATION
CHINA GRASSLANDS
SILICON
PLANTS
CYCLE
ACCUMULATION
FEEDBACKS
SAVANNAS
GRASSES
An invariability-area relationship sheds new light on the spatial scaling of ecological stability
期刊论文
NATURE COMMUNICATIONS, 2017
Wang, Shaopeng
;
Loreau, Michel
;
Arnoldi, Jean-Francois
;
Fang, Jingyun
;
Abd Rahman, K.
;
Tao, Shengli
;
de Mazancourt, Claire
收藏
  |  
浏览/下载:6/0
  |  
提交时间:2017/12/03
ECOSYSTEM STABILITY
SPECIES-AREA
CLIMATE-CHANGE
POPULATION-DYNAMICS
TERRESTRIAL GROSS
CARBON STOCKS
FOOD SECURITY
DIVERSITY
BIODIVERSITY
VARIABILITY
Climate warming reduces the temporal stability of plant community biomass production
期刊论文
NATURE COMMUNICATIONS, 2017
Ma, Zhiyuan
;
Liu, Huiying
;
Mi, Zhaorong
;
Zhang, Zhenhua
;
Wang, Yonghui
;
Xu, Wei
;
Jiang, Lin
;
He, Jin-Sheng
收藏
  |  
浏览/下载:5/0
  |  
提交时间:2017/12/03
TIBETAN PLATEAU
ECOSYSTEM STABILITY
GRASSLAND EXPERIMENT
NATURAL GRASSLANDS
SPECIES LOSS
BIODIVERSITY
DIVERSITY
MECHANISMS
PRECIPITATION
VARIABILITY
Impact of 6:2 fluorotelomer alcohol aerobic biotransformation on a sediment microbial community
期刊论文
SCIENCE OF THE TOTAL ENVIRONMENT, 2017
Zhang, Shu
;
Merino, Nancy
;
Wang, Ning
;
Ruan, Ting
;
Lu, Xiaoxia
收藏
  |  
浏览/下载:6/0
  |  
提交时间:2017/12/03
Polyfluoroalkyl substances
Microcosms
16S rRNA gene amplicon sequencing
Microbial community analysis
Proteobacteria
POLYFLUOROALKYL SUBSTANCES PFASS
HUMAN EXPOSURE
SP NOV.
DEGRADATION
PERFLUOROALKYL
MICROORGANISMS
FTOH
METAGENOMICS
GROUNDWATER
BIODEGRADATION
Coupled dynamics of iron and iron-bound organic carbon in forest soils during anaerobic reduction
其他
2017-01-01
Zhao, Qian
;
Adhikari, Dinesh
;
Huang, Rixiang
;
Patel, Aman
;
Wang, Xilong
;
Tang, Yuanzhi
;
Obrist, Daniel
;
Roden, Eric E.
;
Yang, Yu
收藏
  |  
浏览/下载:8/0
  |  
提交时间:2017/12/03
Iron-bound organic carbon
Microbial reduction
Soil organic carbon stability
X-ray absorption spectroscopy
Electron accepting capacity
FRESH-WATER SEDIMENT
HUMIC SUBSTANCES
MICROBIAL REDUCTION
ELECTRON-ACCEPTORS
MINERAL SOIL
SORPTIVE STABILIZATION
SHEWANELLA-ONEIDENSIS
BACTERIAL ADHESION
FERRIC IRON
MATTER
Response of the global surface ozone distribution to Northern Hemisphere sea surface temperature changes: implications for long-range transport
期刊论文
ATMOSPHERIC CHEMISTRY AND PHYSICS, 2017
Yi, Kan
;
Liu, Junfeng
;
Ban-Weiss, George
;
Zhang, Jiachen
;
Tao, Wei
;
Cheng, Yanli
;
Tao, Shu
收藏
  |  
浏览/下载:8/0
  |  
提交时间:2017/12/03
COMMUNITY ATMOSPHERE MODEL
INDIAN-SUMMER MONSOON
EXTRATROPICAL SST ANOMALIES
CLOUD MICROPHYSICS SCHEME
STOCHASTIC MIXING MODEL
GASEOUS DRY DEPOSITION
EARTH SYSTEM MODEL
AIR-QUALITY
TROPOSPHERIC OZONE
ATLANTIC-OCEAN
Evaluation of passive sampling of gaseous mercury using different sorbing materials
期刊论文
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH, 2017
Lin, Huiming
;
Zhang, Wei
;
Deng, Chunyan
;
Tong, Yingdong
;
Zhang, Qianggong
;
Wang, Xuejun
收藏
  |  
浏览/下载:8/0
  |  
提交时间:2017/12/03
Passive sampler
Gaseous mercury
Sampling rate
Sorbing material
Uptake curve
PERSISTENT ORGANIC POLLUTANTS
IMPREGNATED ACTIVATED CARBON
ATMOSPHERIC MERCURY
ELEMENTAL MERCURY
METEOROLOGICAL FACTORS
DRY DEPOSITION
AIR SAMPLERS
AMBIENT AIR
ADSORPTION
CHINA
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