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科研机构
北京大学 [13]
内容类型
期刊论文 [10]
其他 [3]
发表日期
2017 [1]
2016 [1]
2015 [1]
2014 [2]
2012 [3]
2009 [1]
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共13条,第1-10条
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专题:北京大学
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Changes of soil organic and inorganic carbon in relation to grassland degradation in Northern Tibet
期刊论文
ECOLOGICAL RESEARCH, 2017
Liu, Shuli
;
Tang, Yanhong
;
Zhang, Fawei
;
Du, Yangong
;
Lin, Li
;
Li, Yikang
;
Guo, Xiaowei
;
Li, Qian
;
Cao, Guangmin
收藏
  |  
浏览/下载:108/0
  |  
提交时间:2017/12/03
Soil carbon
Grassland degradation
Carbon storage
Northern Tibet
QINGHAI PROVINCE
LAND DEGRADATION
CLIMATE-CHANGE
ALPINE MEADOW
CO2 EMISSIONS
CHINA
STORAGE
SEQUESTRATION
PLATEAU
MANAGEMENT
Estimating Soil Organic Carbon of Cropland Soil at Different Levels of Soil Moisture Using VIS-NIR Spectroscopy
期刊论文
REMOTE SENSING, 2016
Jiang, Qinghu
;
Chen, Yiyun
;
Guo, Long
;
Fei, Teng
;
Qi, Kun
收藏
  |  
浏览/下载:7/0
  |  
提交时间:2017/12/03
generalized least squares weighting
moisture correction
orthogonal signal correction
soil organic carbon
visible
near-infrared reflectance spectroscopy
NEAR-INFRARED-SPECTROSCOPY
DIFFUSE-REFLECTANCE SPECTROSCOPY
AGRICULTURAL SOILS
FIELD CONDITIONS
CENTRAL YANGTZE
LEAST-SQUARES
WATER CONTENT
SPECTRA
PREDICTION
QUANTIFICATION
宁波市 PM2.5中碳组分的时空分布特征和二次有机碳估算
期刊论文
环境科学, 2015
杜博涵
;
黄晓锋
;
何凌燕
;
胡敏
;
王川
;
任宇超
;
应红梅
;
周军
;
汪伟峰
;
许丹丹
收藏
  |  
浏览/下载:5/0
  |  
提交时间:2017/12/03
Pm2. 5
Pm2. 5
organic carbon (OC)
elemental carbon (EC)
secondary organic carbon (SOC)
Ningbo
有机碳
元素碳
二次有机碳
宁波
Ambient organic carbon to elemental carbon ratios: Influence of the thermal-optical temperature protocol and implications
期刊论文
science of the total environment, 2014
Cheng, Yuan
;
He, Ke-bin
;
Duan, Feng-kui
;
Du, Zhen-yu
;
Zheng, Mei
;
Ma, Yong-liang
收藏
  |  
浏览/下载:5/0
  |  
提交时间:2015/11/11
PM2 (5)
OC
EC
SOA
WSOC
Biomass burning
AEROSOL LIGHT-ABSORPTION
FINE PARTICULATE MATTER
BLACK CARBON
CHEMICAL-COMPOSITION
SOURCE APPORTIONMENT
BROWN CARBON
CHINA
PHASE
IDENTIFICATION
DEPENDENCE
二次有机气溶胶估算方法比较研究
期刊论文
化学学报, 2014
郭松
;
胡敏
;
郭庆丰
;
尚冬杰
收藏
  |  
浏览/下载:4/0
  |  
提交时间:2015/11/11
二次有机气溶胶 二次有机碳 估算方法 方法适用性 比较研究 secondary organic aerosol secondary organic carbon estimation method method applicability comparison study
secondary organic aerosol
secondary organic carbon
estimation method
method applicability
comparison study
The characteristics and origins of carbonaceous aerosol at a rural site of PRD in summer of 2006
期刊论文
atmospheric chemistry and physics, 2012
Hu, W. W.
;
Hu, M.
;
Deng, Z. Q.
;
Xiao, R.
;
Kondo, Y.
;
Takegawa, N.
;
Zhao, Y. J.
;
Guo, S.
;
Zhang, Y. H.
收藏
  |  
浏览/下载:3/0
  |  
提交时间:2015/11/13
PEARL RIVER-DELTA
SECONDARY ORGANIC AEROSOL
ELEMENTAL CARBON
SOURCE APPORTIONMENT
MEXICO-CITY
CHEMICAL-COMPOSITION
SIZE DISTRIBUTIONS
PARTICULATE MATTER
MASS-SPECTROMETER
BLACK CARBON
Tracer-based estimation of secondary organic carbon in the Pearl River Delta, south China
期刊论文
journal of geophysical research atmospheres, 2012
Ding, Xiang
;
Wang, Xin-Ming
;
Gao, Bo
;
Fu, Xiao-Xin
;
He, Quan-Fu
;
Zhao, Xiu-Ying
;
Yu, Jian-Zhen
;
Zheng, Mei
收藏
  |  
浏览/下载:2/0
  |  
提交时间:2015/11/12
SOUTHEASTERN UNITED-STATES
FINE-PARTICLE EMISSIONS
SOURCE APPORTIONMENT
FIREPLACE COMBUSTION
CHEMICAL CHARACTERIZATION
NONMETHANE HYDROCARBONS
AEROSOL CONCENTRATIONS
COMPOUND EMISSIONS
MASS-SPECTROMETRY
PM2.5 AEROSOLS
Soil Respiration in Tibetan Alpine Grasslands: Belowground Biomass and Soil Moisture, but Not Soil Temperature, Best Explain the Large-Scale Patterns
期刊论文
plos one, 2012
Geng, Yan
;
Wang, Yonghui
;
Yang, Kuo
;
Wang, Shaopeng
;
Zeng, Hui
;
Baumann, Frank
;
Kuehn, Peter
;
Scholten, Thomas
;
He, Jin-Sheng
收藏
  |  
浏览/下载:3/0
  |  
提交时间:2015/11/10
STRUCTURAL EQUATION MODEL
CARBON-DIOXIDE
ARCTIC TUNDRA
NITROGEN MINERALIZATION
INTERANNUAL VARIABILITY
ECOSYSTEM-LEVEL
ORGANIC-CARBON
TRADE-OFFS
PLATEAU
CLIMATE
Seasonal and diurnal variations of organic carbon in PM2.5 in Beijing and the estimation of secondary organic carbon
期刊论文
journal of geophysical research atmospheres, 2009
Lin, Peng
;
Hu, Min
;
Deng, Z.
;
Slanina, J.
;
Han, S.
;
Kondo, Y.
;
Takegawa, N.
;
Miyazaki, Y.
;
Zhao, Y.
;
Sugimoto, N.
收藏
  |  
浏览/下载:2/0
  |  
提交时间:2015/11/13
ELEMENTAL CARBON
AIR-QUALITY
LOS-ANGELES
PARTICULATE CARBON
COAL COMBUSTION
FINE PARTICLES
UNITED-STATES
AEROSOL
CHINA
SUPERSITE
Acceleration of the EM and ECM algorithms using the Aitken delta(2) method for log-linear models with partially classified data
其他
2008-01-01
Kuroda, Masahiro
;
Sakakihara, Michio
;
Geng, Zhi
收藏
  |  
浏览/下载:3/0
  |  
提交时间:2015/11/12
MAXIMUM-LIKELIHOOD-ESTIMATION
MISSING DATA
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