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科研机构
北京大学 [604]
内容类型
期刊论文 [525]
其他 [79]
发表日期
2017 [87]
2016 [99]
2015 [79]
2014 [48]
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2012 [48]
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专题:北京大学
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Elderly Migration in China: Types, Patterns, and Determinants
期刊论文
JOURNAL OF APPLIED GERONTOLOGY, 2017
Dou, Xiaolu
;
Liu, Yujun
收藏
  |  
浏览/下载:11/0
  |  
提交时间:2017/12/03
China
elderly migrants
long-distance migrate
short-distance migrate
migration pattern
RURAL-URBAN MIGRATION
INTERNAL MIGRATION
RESIDENTIAL-MOBILITY
HEALTH
IMPACTS
PLACE
On the Relationship between Holocene Geomorphic Evolution of Rivers and Prehistoric Settlements Distribution in the Songshan Mountain Region of China
期刊论文
SUSTAINABILITY, 2017
Lu, Peng
;
Mo, Duowen
;
Wang, Hui
;
Yang, Ruixia
;
Tian, Yan
;
Chen, Panpan
;
Lasaponara, Rosa
;
Masini, Nicola
收藏
  |  
浏览/下载:117/0
  |  
提交时间:2017/12/03
Songshan Mountain
Holocene
geomorphic evolution of rivers
elevation above river level
prehistoric settlements
temporal and spatial distribution
CLIMATE-CHANGE
ARCHAEOLOGY
VALLEY
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
Mapping Development Pattern in Beijing-Tianjin-Hebei Urban Agglomeration Using DMSP/OLS Nighttime Light Data
期刊论文
REMOTE SENSING, 2017
Hu, Yi&apos
;
Peng, Jian
;
Liu, Yanxu
;
Du, Yueyue
;
Li, Huilei
;
Wu, Jiansheng
;
na
收藏
  |  
浏览/下载:7/0
  |  
提交时间:2017/12/03
spatial inequality
urbanization type
DMSP/OLS
Beijing-Tianjin-Hebei urban agglomeration
CHINA
URBANIZATION
MEGALOPOLIS
PERSPECTIVE
EXPANSION
DYNAMICS
CITY
OLS
INEQUALITY
LUMINOSITY
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
Reprint of "An 'unceasing war' on land development on the urban fringe of Beijing: A case study of gated informal housing communities"
期刊论文
CITIES, 2017
Zhao, Pengjun
收藏
  |  
浏览/下载:6/0
  |  
提交时间:2017/12/03
Informal housing
Gated informal housing community
Institutional discrimination
Urban fringe
Beijing
DEVELOPING-COUNTRIES
PROPERTY-RIGHTS
TENURE SECURITY
CHINA
VILLAGES
MARKET
REFORM
CHENGZHONGCUN
URBANIZATION
SHENZHEN
Effects of topography on structuring species assemblages in a subtropical forest
期刊论文
JOURNAL OF PLANT ECOLOGY, 2017
Wang, Qinggang
;
Punchi-Manage, Ruwan
;
Lu, Zhijun
;
Franklin, Scott B.
;
Wang, Zhiheng
;
Li, Yaoqi
;
Chi, Xiulian
;
Bao, Dachuan
;
Guo, Yili
;
Lu, Junmeng
;
Xu, Yaozhan
;
Qiao, Xiujuan
;
Jiang, Mingxi
收藏
  |  
浏览/下载:14/0
  |  
提交时间:2017/12/03
multivariate regression tree analysis
habitat filtering
rare species
Badagongshan
MULTIVARIATE REGRESSION TREES
LANKAN DIPTEROCARP FOREST
HABITAT ASSOCIATIONS
RAIN-FOREST
PLANT-COMMUNITIES
SPATIAL-PATTERNS
TROPICAL FOREST
BETA DIVERSITY
DISTRIBUTIONS
RARE
Longitudinal changes in species composition of forests and grasslands across the North Asian forest steppe zone
期刊论文
FOLIA GEOBOTANICA, 2017
Lashchinskiy, Nikolay
;
Korolyuk, Andrey
;
Makunina, Natalia
;
Anenkhonov, Oleg
;
Liu, Hongyan
收藏
  |  
浏览/下载:25/0
  |  
提交时间:2017/12/03
forest-steppe
landscape
floristic heterogeneity
quantitative floristic methods
SOUTHERN SIBERIA
SEMIDRY GRASSLANDS
ECOLOGICAL FACTORS
CENTRAL-EUROPE
RICHNESS
VEGETATION
DIVERSITY
GRADIENT
COEXISTENCE
PATTERNS
Extensive and drastically different alpine lake changes on Asia's high plateaus during the past four decades
期刊论文
GEOPHYSICAL RESEARCH LETTERS, 2017
Zhang, Guoqing
;
Yao, Tandong
;
Piao, Shilong
;
Bolch, Tobias
;
Xie, Hongjie
;
Chen, Deliang
;
Gao, Yanhong
;
O&apos
;
Shum, C. K.
;
Yang, Kun
;
Yi, Shuang
;
Lei, Yanbin
;
Wang, Weicai
;
He, You
;
Shang, Kun
;
Yang, Xiankun
;
Zhang, Hongbo
;
Reilly, Catherine M.
收藏
  |  
浏览/下载:9/0
  |  
提交时间:2017/12/03
Tibetan Plateau
Mongolian Plateau
lake change
inflection point
cryosphere
CENTRAL TIBETAN PLATEAU
OPEN WATER FEATURES
SEA-LEVEL RISE
CLIMATE-CHANGE
MOISTURE FLUX
GLACIAL LAKES
INDEX NDWI
IMAGERY
INVENTORY
IMPACTS
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
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