Results 71 to 80 of about 27,483 (250)

Research progress of nitrate tracing in karst groundwater based on CiteSpace

Carsologica Sinica
Nitrate (\begin{document}${\rm{NO}}_3^{-}$\end{document}) is one of the main pollutants in groundwater; therefore, once \begin{document}${\rm{NO}}_3^{-}$\end{document} concentrations exceed an acceptable level, it will have adverse effects on water ...
Pingheng YANG, Maosong HUA, Weiqun LUO, Wenjing GUO   +3 more
doaj   +1 more source

Philosophical cognition and prospect of karst research in China

Carsologica Sinica, 2022
The scientific term of Karst in Europe and Yanrong in China is originated from the cognitive history and different orientation of the same objective entity (carbonate topography). The progress of Yanrong research in China has shifted from focusing on the
Yuhui LI, Cheng ZHANG, Xiaodong ZHUANG, Wenrong DING, Xiaoya YU   +4 more
doaj   +1 more source

Growth allocation and stand structure in Norway spruce stands [PDF]

, 2005
This thesis is based on analyses of permanent sample plot data gathered over periods of 10-34 years from an experiment in which a wide range of thinning regimes, and thinnings combined with N-fertilisation, were applied to 25 even-aged Norway spruce ...
Karlsson, Kjell
core  

Representation of obligate groundwater‐dwelling copepod diversity in European protected areas

Conservation Biology, EarlyView.
Abstract Groundwaters sustain diverse surface ecosystems and are populated by metazoan species, mostly invertebrates, that provide fundamental ecological functions and are often of prominent conservation value due to narrow endemism and high phylogenetic rarity.
Francesco Cerasoli, Lorenzo Ricci, Mattia Di Cicco, Tiziana Di Lorenzo, Michele Di Musciano, Stefano Mammola, Emma Galmarini, Diana Maria Paola Galassi   +7 more
wiley   +1 more source

ICTs and economic performance nexus: meta-analysis evidence from country-specific data

Humanities & Social Sciences Communications
The study explores the dynamic and complex nexus between ICTs and economic performance by applying a meta-analysis with data from 65 typical studies at the country level. The overwhelmingly significant positive effects of ICTs on economic performance are
Di Wang, Jianing Sun, Renhao Yang, Kangchuan Su, Qingyuan Yang   +4 more
doaj   +1 more source

Primeval Forest in the Period of Human Cultural History on Gunungsewu Karst Indonesia [PDF]

, 2014
This research was carried out to seek evidence of the presence of karst forestduring the human cultural history in Gunungsewu in the past.The human cultural history approach and pollen deposit analysis were used for findingthe relationshipbetweenhuman ...
Faida, Lies Rahayu Wijayanti
core   +1 more source

Strong diel variation in the activity of insect taxa sampled by Malaise traps

Ecological Entomology, EarlyView.
Malaise traps sampled different communities during mornings (06:00–12:00), afternoons (12:00–16:00), evenings (18:00–22:00), and nights (22:00–06:00), highlighting the difference in diel rhythm between taxa. The highest diversity and abundance of insects were found during afternoons, the lowest diversity during night, and the lowest abundance during ...
Viktor Gårdman, Emme MacDonald, Tomas Roslin   +2 more
wiley   +1 more source

Relationship between the environment and the occurrence of invasive pumpkinseed Lepomis gibbosus in lotic and lentic habitats

Journal of Fish Biology, EarlyView.
Abstract The pumpkinseed Lepomis gibbosus is a freshwater fish species native to North America. It has been introduced to Europe, where it is recognized as one of the worst aquatic invaders due to its high adaptability and invasive potential. This study aimed to determine the presence of L. gibbosus in small to medium‐sized water bodies, both lotic and
Ivan Špelić, Marko Glogoški, Marina Piria   +2 more
wiley   +1 more source

Europe's ecological backbone: recognising the true value of our mountains [PDF]

Europe's mountain areas have social, economic and environmental capital of significance for the entire continent. This importance has been recognised since the late 19th century through national legislation; since the 1970s through regional structures ...
Hazeu, G.W., Perez-Soba, M., Roupioz, L.F.S.   +2 more
core   +3 more sources

Reduced snow cover at the alpine treeline: resistance and recovery of saplings

New Phytologist, EarlyView.
Summary At high elevations, tree saplings and shrubs are usually protected by mid‐winter snow cover, although climate change is expected to extend the snow‐free (SF) period. Exposure to winter drought, freeze–thaw events and freezing temperatures will therefore increase, inducing damages to the hydraulic system and to living cells, resulting in reduced
Katline Charra‐Vaskou, Guillaume Charrier, Andrea Ganthaler, Thierry Améglio, Stefan Mayr   +4 more
wiley   +1 more source