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科研机构
北京大学 [367]
内容类型
期刊论文 [318]
其他 [46]
研究报告 [2]
会议论文 [1]
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2017 [49]
2016 [62]
2015 [37]
2014 [35]
2013 [30]
2012 [37]
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专题:北京大学
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Saturation Correction for Nighttime Lights Data Based on the Relative NDVI
期刊论文
REMOTE SENSING, 2017
Wang, Zheng
;
Yao, Fei
;
Li, Weifeng
;
Wu, Jiansheng
收藏
  |  
浏览/下载:7/0
  |  
提交时间:2017/12/03
DMSP/OLS
nighttime lights
saturation correction
relative NDVI
NET PRIMARY PRODUCTIVITY
SATELLITE IMAGERY
ECONOMIC-ACTIVITY
HUMAN-SETTLEMENTS
UNITED-STATES
LAND
CONSUMPTION
POPULATION
VEGETATION
EMISSIONS
Critical climate periods for grassland productivity on China's Loess Plateau
期刊论文
AGRICULTURAL AND FOREST METEOROLOGY, 2017
Guo, Liang
;
Cheng, Jimin
;
Luedeling, Eike
;
Koerner, Sally E.
;
He, Jin-Sheng
;
Xu, Jianchu
;
Gang, Chengcheng
;
Li, Wei
;
Luo, Ruimin
;
Peng, Changhui
收藏
  |  
浏览/下载:8/0
  |  
提交时间:2017/12/03
Aboveground net primary productivity (ANPP)
Partial least squares regression (PLS)
Precipitation
Temperate grassland
Temperature
Timing of climate variability
NET PRIMARY PRODUCTIVITY
PRECIPITATION VARIABILITY
ABOVEGROUND PRODUCTIVITY
SEASONAL PRECIPITATION
INTERANNUAL VARIATION
RAINFALL VARIABILITY
TEMPERATE GRASSLAND
TEMPORAL VARIATION
MESIC GRASSLAND
NORTH-AMERICAN
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
Seasonal characteristics and determinants of tree growth in a Chinese subtropical forest
期刊论文
JOURNAL OF PLANT ECOLOGY, 2017
Chi, Xiulian
;
Guo, Qiang
;
Fang, Jingyun
;
Schmid, Bernhard
;
Tang, Zhiyao
收藏
  |  
浏览/下载:7/0
  |  
提交时间:2017/12/03
BEF-China
deciduous trees
evergreen trees
neighborhood interaction
species richness
TROPICAL RAIN-FOREST
FUNCTIONAL TRAITS
COMPETITION
SIZE
RATES
PATTERNS
AGE
AVAILABILITY
PRODUCTIVITY
BIODIVERSITY
Changes of carbon stocks in alpine grassland soils from 2002 to 2011 on the Tibetan Plateau and their climatic causes
期刊论文
GEODERMA, 2017
Chen, Litong
;
Jing, Xin
;
Flynn, Dan F. B.
;
Shi, Yue
;
Kuehn, Peter
;
Scholten, Thomas
;
He, Jin-Sheng
收藏
  |  
浏览/下载:112/0
  |  
提交时间:2017/12/03
Soil organic carbon (SOC)
SOC stocks
Repeated soil inventory
Alpine meadow
Alpine steppe
Tibetan Plateau
NET PRIMARY PRODUCTIVITY
ORGANIC-CARBON
TERRESTRIAL ECOSYSTEMS
RECENT DECADES
ARCTIC TUNDRA
FOREST SOILS
GREEN-UP
NITROGEN
CHINA
DYNAMICS
Range shifts in response to climate, change of Ophiocordyceps sinensis, a fungus endemic to the Tibetan Plateau
期刊论文
BIOLOGICAL CONSERVATION, 2017
Yan, Yujing
;
Li, Yi
;
Wang, Wen-Jing
;
He, Jin-Sheng
;
Yang, Rui-Heng
;
Wu, Hai-Jun
;
Wang, Xiao-Liang
;
Jiao, Lei
;
Tang, Zhiyao
;
Yao, Yi-Jian
收藏
  |  
浏览/下载:109/0
  |  
提交时间:2017/12/03
Climate change
Distribution
Species distribution model
Fungi
Cordyceps sinensis
Tibetan Plateau
SPECIES DISTRIBUTION MODELS
IMPACTS
ACCURACY
PATTERNS
AREA
DISTRIBUTIONS
PRODUCTIVITY
VEGETATION
DIVERSITY
DYNAMICS
城乡结合部农业地域功能实现程度及变化趋势——以北京为例
期刊论文
地理研究, 2017
刘玉
;
冯健
收藏
  |  
浏览/下载:4/0
  |  
提交时间:2017/12/03
城乡结合部
地域功能
农业多功能
实现程度
变化趋势
rural-urban fringe
regional function
multi-functionality of agriculture
execution
change
The accumulation of phytolith-occluded carbon in soils of different grasslands
期刊论文
JOURNAL OF SOILS AND SEDIMENTS, 2017
Pan, Wenjie
;
Song, Zhaoliang
;
Liu, Hongyan
;
Van Zwieten, Lukas
;
Li, Yutong
;
Yang, Xiaomin
;
Han, Yue
;
Liu, Xu
;
Zhang, Xiaodong
;
Xu, Zijuan
;
Wang, Hailong
收藏
  |  
浏览/下载:6/0
  |  
提交时间:2017/12/03
Carbon sequestration
Grassland
North China
PhytOC
Phytolith
Turnover
BIOGENIC SILICA
BIOGEOCHEMICAL SEQUESTRATION
PLANT-IMPACT
CHINA
ECOSYSTEMS
CYCLES
TEMPERATE
WETLAND
FORESTS
CO2
持久性有机污染物(POPs)在水生生态系统中的环境行为
期刊论文
北京大学学报 自然科学版, 2017
冯秋园
;
吴桐
;
万祎
;
刘学勤
;
刘永
收藏
  |  
浏览/下载:6/0
  |  
提交时间:2017/12/03
持久性有机污染物(POPs)
水生生态系统
环境介质
生物个体
环境行为
persistent organic pollutants (POPs)
aquatic system
environmental medium
individuals
environmental behavior
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
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