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科研机构
北京大学 [664]
内容类型
期刊论文 [512]
其他 [144]
会议论文 [8]
发表日期
2017 [68]
2016 [86]
2015 [76]
2014 [65]
2013 [48]
2012 [55]
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专题:北京大学
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Assessing Agricultural Drought Vulnerability by a VSD Model: A Case Study in Yunnan Province, China
期刊论文
SUSTAINABILITY, 2017
Wu, Jiansheng
;
Lin, Xin
;
Wang, Meijuan
;
Peng, Jian
;
Tu, Yuanjie
收藏
  |  
浏览/下载:9/0
  |  
提交时间:2017/12/03
agricultural drought vulnerability
VSDmode
factor contributionmethod
Yunnan Province
CLIMATE-CHANGE
RISK
FRAMEWORK
DISASTERS
HAZARD
MAIZE
WHEAT
Debris-Flow Susceptibility Assessment Model and Its Application in Semiarid Mountainous Areas of the Southeastern Tibetan Plateau
期刊论文
NATURAL HAZARDS REVIEW, 2017
Chen, Jian
;
Li, Yan
;
Zhou, Wendy
;
Iqbal, Javed
;
Cui, Zhijiu
收藏
  |  
浏览/下载:4/0
  |  
提交时间:2017/12/03
Catchment unit
Semiarid mountainous area
Debris-flow
Index entropy model
Susceptibility assessment
ANALYTICAL HIERARCHY PROCESS
ARTIFICIAL NEURAL-NETWORKS
UPPER JINSHA RIVER
LOGISTIC-REGRESSION MODELS
LANDSLIDE RISK ANALYSIS
CONDITIONAL-PROBABILITY
FREQUENCY RATIO
GIS TECHNOLOGY
LAKE DEPOSITS
EARTHQUAKE
Environmental controls on soil respiration in alpine meadow along a large altitudinal gradient on the central Tibetan Plateau
期刊论文
CATENA, 2017
Zhao, Jingxue
;
Li, Ruicheng
;
Li, Xiang
;
Tian, Lihua
收藏
  |  
浏览/下载:111/0
  |  
提交时间:2017/12/03
Alpine meadow
Soil respiration
Temperature sensitivity
Tibetan Plateau
Environmental controls
CARBON-DIOXIDE EXCHANGE
ECOSYSTEM CO2 EXCHANGE
TEMPERATURE SENSITIVITY
CLIMATE-CHANGE
TERRESTRIAL ECOSYSTEMS
MICROBIAL RESPIRATION
SEMIARID GRASSLANDS
TALLGRASS PRAIRIE
GROWING-SEASON
CHINA
A snow-free vegetation index for improved monitoring of vegetation spring green-up date in deciduous ecosystems
期刊论文
REMOTE SENSING OF ENVIRONMENT, 2017
Wang, Cong
;
Chen, Jin
;
Wu, Jin
;
Tang, Yanhong
;
Shi, Peijun
;
Black, T. Andrew
;
Zhu, Kai
收藏
  |  
浏览/下载:5/0
  |  
提交时间:2017/12/03
Vegetation phenology
Green-up date
Remote sensing
Snowmelt
NDPI
Climate change
DIGITAL REPEAT PHOTOGRAPHY
CARBON-DIOXIDE EXCHANGE
DIFFERENCE WATER INDEX
LAND-SURFACE PHENOLOGY
TIBETAN PLATEAU
GROWING-SEASON
BOREAL REGIONS
HIGH-LATITUDES
SATELLITE DATA
CLIMATE-CHANGE
氮添加对北京东灵山地区灌丛土壤呼吸的影响
期刊论文
植物生态学报, 2017
张建华
;
唐志尧
;
沈海花
;
方精云
收藏
  |  
浏览/下载:5/0
  |  
提交时间:2017/12/03
氮沉降
土壤呼吸
碳循环
温度敏感性
温带灌丛
nitrogen deposition
soil respiration
carbon cycle
temperature sensitivity
temperate shrublands
Seasonal Responses of Terrestrial Carbon Cycle to Climate Variations in CMIP5 Models: Evaluation and Projection
期刊论文
JOURNAL OF CLIMATE, 2017
Liu, Yongwen
;
Piao, Shilong
;
Lian, Xu
;
Ciais, Philippe
;
Smith, W. Kolby
收藏
  |  
浏览/下载:2/0
  |  
提交时间:2017/12/03
EARTH SYSTEM MODELS
LAND-SURFACE PHENOLOGY
CANADA BOREAL FORESTS
PAST 3 DECADES
ECOSYSTEM PRODUCTIVITY
VEGETATION PHENOLOGY
NORTHERN-HEMISPHERE
TEMPORAL DYNAMICS
SPRING PHENOLOGY
TROPICAL FORESTS
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:105/0
  |  
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
Estimating structural parameters of agricultural crops from ground-based multi-angular digital images with a fractional model of sun and shade components
期刊论文
AGRICULTURAL AND FOREST METEOROLOGY, 2017
Mu, Xihan
;
Hu, Ronghai
;
Zeng, Yelu
;
McVicar, Tim R.
;
Ren, Huazhong
;
Song, Wanjuan
;
Wang, Yuanyuan
;
Casa, Raffaele
;
Qi, Jianbo
;
Xie, Donghui
;
Yan, Guangjian
收藏
  |  
浏览/下载:6/0
  |  
提交时间:2017/12/03
Leaf area index
Leaf angle distribution
Bidirectional gap fraction
Sun and shade leaves and soil
Field measurement
Canopy reflectance
LEAF-AREA INDEX
DIRECTIONAL BRIGHTNESS TEMPERATURE
SIZE ANALYSIS THEORY
VEGETATION COVER
HEMISPHERICAL PHOTOGRAPHY
PLANT CANOPIES
ROW CROPS
EXTINCTION COEFFICIENT
BROADLEAF CANOPIES
ANGLE DISTRIBUTION
Algorithm Development for Land Surface Temperature Retrieval: Application to Chinese Gaofen-5 Data
期刊论文
REMOTE SENSING, 2017
Chen, Yuanyuan
;
Duan, Si-Bo
;
Ren, Huazhong
;
Labed, Jelila
;
Li, Zhao-Liang
收藏
  |  
浏览/下载:4/0
  |  
提交时间:2017/12/03
land surface temperature
land surface emissivity
split-window
Gaofen-5
SPLIT-WINDOW ALGORITHMS
MOISTURE STATUS
SATELLITE DATA
EMISSIVITY
INDEX
WATER
EVAPOTRANSPIRATION
PRODUCTS
DROUGHT
SPACE
A simple temperature domain two-source model for estimating agricultural field surface energy fluxes from Landsat images
期刊论文
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2017
Yao, Yunjun
;
Liang, Shunlin
;
Yu, Jian
;
Chen, Jiquan
;
Liu, Shaomin
;
Lin, Yi
;
Fisher, Joshua B.
;
McVicar, Tim R.
;
Cheng, Jie
;
Jia, Kun
;
Zhang, Xiaotong
;
Xie, Xianhong
;
Jiang, Bo
;
Sun, Liang
收藏
  |  
浏览/下载:7/0
  |  
提交时间:2017/12/03
SENSIBLE HEAT-FLUX
PRIESTLEY-TAYLOR PARAMETER
BALANCE CLOSURE PROBLEM
LEAF-AREA INDEX
EDDY-COVARIANCE
DAILY EVAPORATION
TERRESTRIAL EVAPOTRANSPIRATION
RADIOMETRIC TEMPERATURE
EXPERIMENTAL-DESIGN
METEOROLOGICAL DATA
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