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浏览/检索结果: 共6条，第1-6条 帮助 限定条件 发表日期：2016    专题：北京大学    第一署名单位    第一作者单位    通讯作者单位     已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 Age-Related Modulation of the Nitrogen Resorption Efficiency Response to Growth Requirements and Soil Nitrogen Availability in a Temperate Pine Plantation 期刊论文 ECOSYSTEMS, 2016 Sun, Zhenzhong; Liu, Lingli; Peng, Shushi; Penuelas, Josep; Zeng, Hui; Piao, Shilong 收藏  |  浏览/下载：8/0  |  提交时间：2017/12/03 nitrogen resorption  green leaves  senesced leaves  nitrogen requirement  nitrogen deposition  stand age  plant-available nitrogen  annual stand biomass production  ASPEN POPULUS-TREMULOIDES  LEAF-LITTER DECOMPOSITION  NUTRIENT RESORPTION  STAND AGE  FOREST GROWTH  DYNAMICS  LEAVES  RETRANSLOCATION  SEEDLINGS  PATTERNS   Nutrient allocation strategies of woody plants: an approach from the scaling of nitrogen and phosphorus between twig stems and leaves 期刊论文 SCIENTIFIC REPORTS, 2016 Yan, Zhengbing; Li, Peng; Chen, Yahan; Han, Wenxuan; Fang, Jingyun 收藏  |  浏览/下载：2/0  |  提交时间：2017/12/03 LEAF NITROGEN  GLOBAL PATTERNS  SIZE SPECTRUM  GROWTH FORM  SEED PLANTS  TRAITS  SOIL  STOICHIOMETRY  TEMPERATURE  CLIMATE   DEFINING URBAN AND RURAL REGIONS BY MULTIFRACTAL SPECTRUMS OF URBANIZATION 期刊论文 FRACTALS-COMPLEX GEOMETRY PATTERNS AND SCALING IN NATURE AND SOCIETY, 2016 Chen, Yanguang 收藏  |  浏览/下载：5/0  |  提交时间：2017/12/03 Multifractals  Spatial Recursive Subdivision  Space Filling  Allometric Scaling  Golden Section  Level of Urbanization  Urban Space  Rural Space  FRACTAL DIMENSION  CENTRAL PLACE  DYNAMICS  GROWTH  SIZE  SETTLEMENTS  PATTERNS  BRUSSELS  FRONTIER  CITIES   Geographical variation in the importance of water and energy for oak diversity 期刊论文 JOURNAL OF BIOGEOGRAPHY, 2016 Xu, Xiaoting; Wang, Zhiheng; Rahbek, Carsten; Sanders, Nathan J.; Fang, Jingyun 收藏  |  浏览/下载：3/0  |  提交时间：2017/12/03 Cyclobalanopsis  Fagaceae  geographically weighted regression  oaks  physiological tolerance  Quercus  species diversity  water-energy dynamics  PLANT-SPECIES RICHNESS  CLIMATE-CHANGE  FREEZING TOLERANCE  HIGH-TEMPERATURE  SOUTHERN AFRICA  RADIAL GROWTH  NORTH-AMERICA  QUERCUS  PATTERNS  DROUGHT   Fiscal decentralization, political centralization, and land urbanization in China 期刊论文 URBAN GEOGRAPHY, 2016 He, Canfei; Zhou, Yi; Huang, Zhiji 收藏  |  浏览/下载：3/0  |  提交时间：2017/12/03 land urbanization  fiscal decentralization  political centralization  spatial econometric model  China  PEARL RIVER DELTA  LOCAL PUBLIC-FINANCE  URBAN LAND  ECONOMIC-PERFORMANCE  REGIONAL-DEVELOPMENT  DRIVING FORCES  GROWTH  STATE  EXPANSION  PATTERNS   Identification of Factors Influencing Locations of Tree Cover Loss and Gain and Their Spatio-Temporally-Variant Importance in the Li River Basin, China 期刊论文 REMOTE SENSING, 2016 Zhang, Yuan; Li, Jun; Qin, Qiming 收藏  |  浏览/下载：4/0  |  提交时间：2017/12/03 random forests  tree cover change  variable importance  tree cover loss  tree cover gain  RANDOM FORESTS  LAND-COVER  TROPICAL DEFORESTATION  DRIVING FORCES  SOCIOECONOMIC DRIVERS  URBAN-GROWTH  REGRESSION  PATTERNS  CLASSIFICATION  ACCURACY