QQ客服 官方微博 反馈留言

浏览/检索结果: 共5条，第1-5条 帮助 限定条件 发表日期：2017    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 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   Asymmetric competition for light varies across functional groups 期刊论文 JOURNAL OF PLANT ECOLOGY, 2017 Guo, Qiang; Chi, Xiulian; Xie, Zongqiang; Tang, Zhiyao 收藏  |  浏览/下载：11/0  |  提交时间：2017/12/03 asymmetric competition  tree height  metabolic scaling theory  tree growth  functional group  TREE GROWTH  SHADE TOLERANCE  RAIN-FOREST  LEAF ATTRIBUTES  WOODY-PLANTS  SIZE  EVERGREEN  HEIGHT  TRAITS  MODEL   Can niche plasticity promote biodiversity-productivity relationships through increased complementarity? 期刊论文 ECOLOGY, 2017 Niklaus, Pascal A.; Baruffol, Martin; He, Jin-Sheng; Ma, Keping; Schmid, Bernhard 收藏  |  浏览/下载：3/0  |  提交时间：2017/12/03 additive partitioning  biodiversity-productivity relationships  canopy stratification  competition  complementarity  functional trait dissimilarity  niche overlap  niche plasticity  subtropical tree stands  PLANT-SPECIES DIVERSITY  CROWN PLASTICITY  FORESTS  LIGHT  TREE  COMMUNITIES  GRASSLANDS  RICHNESS  NITROGEN  BIOMASS   Estimation of canopy carotenoid content of winter wheat using multi-angle hyperspectral data 期刊论文 ADVANCES IN SPACE RESEARCH, 2017 Kong, Weiping; Huang, Wenjiang; Liu, Jiangui; Chen, Pengfei; Qin, Qiming; Ye, Huichun; Peng, Dailiang; Dong, Yingying; Mortimer, A. Hugh 收藏  |  浏览/下载：6/0  |  提交时间：2017/12/03 Multi-angle  Hyperspectral data  Vegetation index  Spectral feature  Canopy carotenoid content  Agriculture  REMOTE-SENSING DATA  LEAF-AREA INDEX  VEGETATION INDEXES  CHLOROPHYLL CONTENT  REFLECTANCE SPECTROSCOPY  PRECISION AGRICULTURE  CHRIS/PROBA DATA  PLANT-LEAVES  GREEN LAI  VALIDATION   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