Results 11 to 20 of about 12,437 (260)

Turning a new leaf: PhenoVision provides leaf phenology data at the global scale

Applications in Plant Sciences
ABSTRACT Plant phenology dictates many aspects of community function and ecosystem dynamics. Yet, global phenology data are still limited, especially in areas lacking monitoring programs. Here we present a new data resource, PhenoVision–Leaf, which extends a computer-vision pipeline utilizing iNaturalist digital image vouchers to ...
Erin L. Grady, Ellen G. Denny, Carrie E. Seltzer, John Deck, Daijiang Li, Russell Dinnage, Robert P. Guralnick   +6 more
openaire   +2 more sources

Remote Sensing of Seasonal Climatic Constraints on Leaf Phenology Across Pantropical Evergreen Forest Biome

Earth's Future, 2021
Climatic drivers for canopy leaf shedding and flush of evergreen broadleaved forest biome are still unclear at the continental scale across tropical and subtropical region.
Qian Li, Xiuzhi Chen, Wenping Yuan, Haibo Lu, Ruoque Shen, Shengbiao Wu, Fanxi Gong, Yuhang Dai, Liyang Liu, Qingling Sun, Chaoqun Zhang, Yongxian Su   +11 more
doaj   +1 more source

Variations of leaf nonstructural carbohydrates in an evergreen coniferous species: Needle age and phenology dominate over life history

Ecological Indicators, 2022
Non-structural carbohydrates (NSCs), including soluble sugar (SS) and starch (ST), are essential for the growth and survival of plants. However, few studies have investigated the effects of phenology, needle age, and life history together on NSCs.
Lina Yan, Ziyan Zhang, Guangze Jin, Zhili Liu   +3 more
doaj   +1 more source

Phenology as a strategy for carbon optimality: a global model [PDF]

Biogeosciences, 2014
Phenology is essential to our understanding of biogeochemical cycles and the climate system. We develop a global mechanistic model of leaf phenology based on the hypothesis that phenology is a strategy for optimal carbon gain at the canopy level so that ...
S. Caldararu, D. W. Purves, P. I. Palmer
doaj   +1 more source

Effects of the Simulated Enhancement of Precipitation on the Phenology of Nitraria tangutorum under Extremely Dry and Wet Years

Plants, 2021
Plant phenology is the most sensitive biological indicator that responds to climate change. Many climate models predict that extreme precipitation events will occur frequently in the arid areas of northwest China in the future, with an increase in the ...
Fang Bao, Zhiming Xin, Jiazhu Li, Minghu Liu, Yanli Cao, Qi Lu, Ying Gao, Bo Wu   +7 more
doaj   +1 more source

Improving Phenology Representation of Deciduous Forests in the Community Land Model: Evaluation and Modification Using Long‐Term Observations in China

Journal of Advances in Modeling Earth Systems, 2023
Phenology is an important factor indicating environmental changes and regulates the variations of carbon, water, and energy exchange. However, phenology models exhibit large uncertainties due to limited understanding of its mechanisms.
Yan Lv, Li Zhang, Pan Li, Honglin He, Xiaoli Ren, Zongqiang Xie, Yang Wang, Anzhi Wang, FuSun Shi, Ruiying Chang, Jingfeng Xiao, Xufeng Wang   +11 more
doaj   +1 more source

Spatiotemporal Variation of Osmanthus fragrans Phenology in China in Response to Climate Change From 1973 to 1996

Frontiers in Plant Science, 2022
Climate change greatly affects spring and autumn plant phenology around the world consequently, and significantly impacts ecosystem function and the social economy.
Xianping Wang, Yinzhan Liu, Xin Li, Shibin He, Mingxing Zhong, Fude Shang, Fude Shang, Fude Shang   +7 more
doaj   +1 more source

Predicting Leaf Phenology in Forest Tree Species Using UAVs and Satellite Images: A Case Study for European Beech (Fagus sylvatica L.)

Remote Sensing, 2022
Understanding forest tree phenology is essential for assessing forest ecosystem responses to environmental changes. Observations of phenology using remote sensing devices, such as satellite imagery and Unmanned Aerial Vehicles (UAVs), along with machine ...
Mihnea Ioan Cezar Ciocîrlan, Alexandru Lucian Curtu, Gheorghe Raul Radu   +2 more
doaj   +1 more source

Partitioning of three phenology rhythms in American tropical and subtropical forests using remotely sensed solar-induced chlorophyll fluorescence and field litterfall observations

International Journal of Applied Earth Observations and Geoinformation, 2022
The climatic drivers of leaf phenology and water stress regulation strategies in tropical/subtropical forest biomes are poorly understood on the continental scale.
Fanxi Gong, Xiuzhi Chen, Wenping Yuan, Yongxian Su, Xueqin Yang, Liyang Liu, Qingling Sun, Jianping Wu, Yuhang Dai, Jiali Shang   +9 more
doaj   +1 more source

Leaf morphophysiology of a Neotropical mistletoe is shaped by seasonal patterns of host leaf phenology [PDF]

Oecologia, 2015
Several mistletoe species are able to grow and reproduce on both deciduous and evergreen hosts, suggesting a degree of plasticity in their ability to cope with differences in intrinsic host functions. The aim of this study was to investigate the influence of host phenology on mistletoe water relations and leaf gas exchange.
Scalon, Marina Corrêa, Rossatto, Davi Rodrigo, Domingos, Fabricius Maia Chaves Bicalho, Franco, Augusto Cesar   +3 more
openaire   +4 more sources