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科研机构
北京大学 [513]
内容类型
期刊论文 [477]
其他 [28]
会议论文 [8]
发表日期
2017 [187]
2016 [215]
2015 [111]
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专题:北京大学
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An Improved Estimation of Regional Fractional Woody/Herbaceous Cover Using Combined Satellite Data and High-Quality Training Samples
期刊论文
REMOTE SENSING, 2017
Liu, Xu
;
Liu, Hongyan
;
Qiu, Shuang
;
Wu, Xiuchen
;
Tian, Yuhong
;
Hao, Qian
收藏
  |  
浏览/下载:8/0
  |  
提交时间:2017/12/03
vegetation fractional cover
semi-arid area
MODIS
satellite data integration
spatial sampling design
image classification
Random Forest regression
model performance evaluation
LAND-COVER
INNER-MONGOLIA
MODIS DATA
VEGETATION
SURFACE
STEPPE
FOREST
COEXISTENCE
TOPOGRAPHY
TRANSITION
Increasing the Use of Urban Greenways in Developing Countries: A Case Study on Wutong Greenway in Shenzhen, China
期刊论文
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH, 2017
Chen, Yiyong
;
Gu, Weiying
;
Liu, Tao
;
Yuan, Lei
;
Zeng, Mali
收藏
  |  
浏览/下载:4/0
  |  
提交时间:2017/12/03
frequency of use
duration of use
logistic regression
urban greenway
PHYSICAL-ACTIVITY BEHAVIORS
PUBLIC OPEN SPACE
HEALTH
INFRASTRUCTURE
COMMUNITIES
DESIGN
PLACE
Effects of phosphorus stress on the photosynthetic and physiological characteristics of Chlorella vulgaris based on chlorophyll fluorescence and flow cytometric analysis
期刊论文
ECOLOGICAL INDICATORS, 2017
Jiao, Yang
;
Ouyang, Hui-Ling
;
Jiang, Yu-Jiao
;
Kong, Xiang-Zhen
;
He, Wei
;
Liu, Wen-Xiu
;
Yang, Bin
;
Xu, Fu-Liu
收藏
  |  
浏览/下载:125/0
  |  
提交时间:2017/12/03
Cellular physiology
Chlorella vulgaris
Chlorophyll fluorescence
FCM
growth
Photosynthesis
Phosphorus
ORGANIC PHOSPHORUS
K-SELECTION
R-SELECTION
INHIBITION
MICROALGAE
COPPER
EVOLUTION
TOXICITY
GROWTH
ALGAE
Tree-ring-based SPEI reconstruction in central Tianshan Mountains of China since AD 1820 and links to westerly circulation
期刊论文
INTERNATIONAL JOURNAL OF CLIMATOLOGY, 2017
Jiang, Peng
;
Liu, Hongyan
;
Wu, Xiuchen
;
Wang, Hongya
收藏
  |  
浏览/下载:11/0
  |  
提交时间:2017/12/03
SPEI
tree-ring width
Tianshan Mountains
DROUGHT SEVERITY INDEX
MOISTURE VARIABILITY
NORTH-ATLANTIC
CLIMATE-CHANGE
TIME-SERIES
VEGETATION
IMPACTS
HISTORY
DATASET
SHAN
Optimized Multiresidue Analysis of Organic Contaminants of Priority Concern in a Daily Consumed Fish (Grass Carp)
期刊论文
JOURNAL OF ANALYTICAL METHODS IN CHEMISTRY, 2017
He, Wei
;
Chen, Yanru
;
Yang, Chen
;
Liu, Wenxiu
;
Kong, Xiangzhen
;
Qin, Ning
;
He, Qishuang
;
Xu, Fuliu
收藏
  |  
浏览/下载:5/0
  |  
提交时间:2017/12/03
POLYCYCLIC AROMATIC-HYDROCARBONS
POLYBROMINATED DIPHENYL ETHERS
ACCELERATED SOLVENT-EXTRACTION
GEL-PERMEATION CHROMATOGRAPHY
ORGANOCHLORINE PESTICIDE-RESIDUES
POLYCHLORINATED-BIPHENYLS PCBS
PRESSURIZED LIQUID EXTRACTION
MICROWAVE-ASSISTED EXTRACTION
BIOLOGICAL MATRICES
SUPERCRITICAL-FLUID
Long-term forest resilience to climate change indicated by mortality, regeneration, and growth in semiarid southern Siberia
期刊论文
GLOBAL CHANGE BIOLOGY, 2017
Xu, Chongyang
;
Liu, Hongyan
;
Anenkhonov, Oleg A.
;
Korolyuk, Andrey Yu
;
Sandanov, Denis V.
;
Balsanova, Larisa D.
;
Naidanov, Bulat B.
;
Wu, Xiuchen
收藏
  |  
浏览/下载:8/0
  |  
提交时间:2017/12/03
arid timberline
arid tree line
climate change
forest resilience
forest-steppe
patch size
southern Siberia
ECOLOGICAL RESILIENCE
TEMPERATE FOREST
WESTERN CANADA
SEED BANK
DROUGHT
DYNAMICS
VARIABILITY
DISTURBANCE
MOUNTAINS
TREELINE
How to reduce household carbon emissions: A review of experience and policy design considerations
期刊论文
ENERGY POLICY, 2017
Zhang, Xiaoling
;
Wang, Yue
收藏
  |  
浏览/下载:18/0
  |  
提交时间:2017/12/03
Energy policy
Household carbon emission
Demand-supply
CO2 EMISSIONS
RENEWABLE ELECTRICITY
DECOMPOSITION ANALYSIS
ENERGY-CONSUMPTION
UNITED-KINGDOM
GHG EMISSIONS
CHINA
IMPACT
SECTOR
URBAN
Management outweighs climate change on affecting length of rice growing period for early rice and single rice in China during 1991-2012
期刊论文
AGRICULTURAL AND FOREST METEOROLOGY, 2017
Wang, Xuhui
;
Ciais, Philippe
;
Li, Laurent
;
Ruget, Francois
;
Vuichard, Nicolas
;
Viovy, Nicolas
;
Zhou, Feng
;
Chang, Jinfeng
;
Wu, Xiuchen
;
Zhao, Hongfang
;
Piao, Shilong
收藏
  |  
浏览/下载:47/0
  |  
提交时间:2017/12/03
Length of growing period
Rice
Climate change
Crop management
ORCHIDEE-crop
China
WINTER-WHEAT PHENOLOGY
PAST 3 DECADES
CROP MANAGEMENT
GROWTH DURATION
EXTREME HEAT
FIELD CROPS
YIELD
IMPACTS
MODELS
TEMPERATURE
A novel colorimetric biosensor based on non-aggregated Au@Ag core-shell nanoparticles for methamphetamine and cocaine detection
期刊论文
TALANTA, 2017
Mao, Kang
;
Yang, Zhugen
;
Li, Junrong
;
Zhou, Xiaodong
;
Li, Xiqing
;
Hu, Jiming
收藏
  |  
浏览/下载:106/0
  |  
提交时间:2017/12/03
Au@Ag
Aptamer
Methamphetamine
Colorimetry
Illicit drugs
TANDEM MASS-SPECTROMETRY
UNMODIFIED GOLD NANOPARTICLES
ILLICIT DRUGS
APTAMER
DNA
PROBES
WATER
OLIGONUCLEOTIDES
PHARMACEUTICALS
APTASENSOR
A New Crown-Group Frog (Amphibia: Anura) from the Early Cretaceous of Northeastern Inner Mongolia, China
期刊论文
AMERICAN MUSEUM NOVITATES, 2017
Gao, Ke-Qin
;
Chen, Jianye
收藏
  |  
浏览/下载:2/0
  |  
提交时间:2017/12/03
PHYLOGENETIC-RELATIONSHIPS
DISCOGLOSSID FROG
SALIENTIA
SPAIN
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