Results 91 to 100 of about 163,532 (303)

Growing Degree‐Day Trends Associated With ‘False Springs’ in the Continental United States

International Journal of Climatology, EarlyView.
Earlier spring warming has increased growing degree‐day (GDD) accumulation prior to the last freeze at some US locations (red circles = stat. sig. increases). However, after accounting for spatial autocorrelation using a false discovery rate approach, few trends remain significant, indicating no coherent continental‐scale increase in false spring risk.
Robert E. Davis, Julia Finkbeiner, Marion Donald, Manuel Lerdau   +3 more
wiley   +1 more source

How Do Changes in Grassland Phenology and Its Responses to Extreme Climatic Events in Central Asia?

Land
Extreme climate events have become more frequent under global warming, significantly affecting vegetation phenology and carbon cycles in Central Asia. However, the mediating effects of intensity of compound drought and heat events (CDHEs) and compound ...
Xinwei Wang, Jianhao Li, Jianghua Zheng, Liang Liu, Xiaojing Yu, Ruikang Tian, Mengxiang Xing   +6 more
doaj   +1 more source

Retrospective Analysis of Wood Anatomical Traits Reveals a Recent Extension in Tree Cambial Activity in Two High-Elevation Conifers [PDF]

, 2017
The study of xylogenesis or wood formation is a powerful, yet labor intensive monitoring approach to investigate intra-annual tree growth responses to environmental factors.
Angela L. Prendin, Daniele Castagneri, Georg von Arx, Georg von Arx, Giai Petit, Marco Carrer   +5 more
core   +2 more sources

Long‐Term Variability and Spatial Differentiation of the Frost‐Free Period in Iceland

International Journal of Climatology, EarlyView.
Warming in Iceland (May–September) is expressed as fewer Tmin < 0°C days in the interior and more Tmin > 0°C days along the coasts. ABSTRACT Climate change in subarctic regions leads to significant transformations in thermal conditions; however, the long‐term variability of the frost‐free season (FFS)—and consequently, the growing period—remains poorly
Katarzyna Piotrowicz, Katarzyna Szyga‐Pluta, Alicja Szklarczyk, Ewa Przedpełska‐Wąsowicz   +3 more
wiley   +1 more source

Biotic and thermal drivers alter zooplankton phenology in western Lake Erie

Limnology and Oceanography Letters
Environmental change, particularly warming and eutrophication, can alter phenology in aquatic systems. Understanding controls on zooplankton phenology is important due to their central role in food webs.
Jenna Bailey, James M. Hood
doaj   +1 more source

Fenologia – dezvoltare şi perspective. O sinteză [Phenology - development and perspectives. A synthesis] [PDF]

Bucovina Forestieră, 2004
The paper presents to the Romanian readers a state of art regarding the main aspects of the phenology, based on a wide sources of scientific literature, both foreign and Romanian.
Teodosiu M, Mateescu E
doaj  

First assessment of the plant phenology index (PPI) for estimating gross primary productivity in African semi-arid ecosystems

, 2019
The importance of semi-arid ecosystems in the global carbon cycle as sinks for CO2 emissions has recently been highlighted. Africa is a carbon sink and nearly half its area comprises arid and semi-arid ecosystems.
Abdi, A. M., Ardo, J., Boke-Olen, N., Eklundh, L., Jin, H., Lehsten, V., Tagesson, T.   +6 more
core   +1 more source

A longer vernal window: The role of winter coldness and snowpack in driving spring thresholds and lags [PDF]

, 2017
Climate change is altering the timing and duration of the vernal window, a period that marks the end of winter and the start of the growing season when rapid transitions in ecosystem energy, water, nutrient, and carbon dynamics take place.
Adolph, Alden, Albert, Mary, Burakowski, Elizabeth A., Burchsted, Denise, Contosta, Alexandra R., Dibb, Jack E., Green, Mark, Guerra, David, Martin, Mary E., McDowell, William H., Routhier, Michael R., Wake, Cameron P., Whitaker, Rachel, Wollheim, Wilfred M.   +13 more
core   +2 more sources

Combined effects of prohexadione‐calcium and growing environment on sweet cherry fruit quality and postharvest performance

Journal of the Science of Food and Agriculture, EarlyView.
Abstract BACKGROUND Sweet cherry (Prunus avium L.) is a high‐value fruit crop, but its commercial success is often limited by poor pigmentation, reduced firmness, and short shelf life. This study evaluated the effects of preharvest applications of prohexadione‐calcium (1.5 L ha−1) on fruit quality and storage performance in lowland and hilly orchards ...
Alice Varaldo, Alessandra Dacomo, Dario Donno, Giovanna Giacalone   +3 more
wiley   +1 more source

Plant water resource partitioning and isotopic fractionation during transpiration in a seasonally dry tropical climate [PDF]

, 2017
Lake Chala (3 degrees 19' S, 37 degrees 42' E) is a steep-sided crater lake situated in equatorial East Africa, a tropical semiarid area with a bimodal rainfall pattern. Plants in this region are exposed to a prolonged dry season, and we investigated if (
Bodé, Samuel, Boeckx, Pascal, De Wispelaere, Lien, Hemp, Andreas, Hervé Fernández, Pedro Alejandro, Verschuren, Dirk   +5 more
core   +3 more sources