Publikasjoner
NIBIOs ansatte publiserer flere hundre vitenskapelige artikler og forskningsrapporter hvert år. Her finner du referanser og lenker til publikasjoner og andre forsknings- og formidlingsaktiviteter. Samlingen oppdateres løpende med både nytt og historisk materiale. For mer informasjon om NIBIOs publikasjoner, besøk NIBIOs bibliotek.
2023
Forfattere
Ji Liu Yi Wang Yong Li Josep Peñuelas Ying Zhao Jordi Sardans Doerthe Tetzlaff Jian Liu Xinliang Liu Hongzhao Yuan Yanyan Li Ji Chen Jinshui WuSammendrag
Whether and how to synchronously regulate stream water nitrogen (N) and phosphorus (P) concentrations and ratios is a major challenge for sustainable aquatic functions. Soil carbon (C):N:P ratios influence soil N and P stocks and biogeochemical processes that elicit subsequent substantial impacts on stream water N and P concentrations and ratios. Therefore, bridging soil and stream water with ecological stoichiometry is one of the most promising technologies for improving stream water quality. Here, we quantified the ecological stoichiometry of soil and stream water relationships across nine catchments. Soil C:P ratio was the main driver of water quality, showing negative correlations with stream water N and P concentrations, and positive correlations with the N:P ratio in P-limited catchments. We revealed that soil C:P ratios higher than 97.8 mol mol−1 are required to achieve the simultaneous regulation of stream water N and P concentrations below the eutrophication threshold and make algal growth P-limited. Furthermore, we found that the relationships between catchment landscape and soil ecological stoichiometry likely provided practical options for regulating soil ecological stoichiometry. Our work highlights that soil ecological stoichiometry can effectively indicate the amount and proportion of soil N and P losses, and can be intervened through rational landscape planning to achieve sustainable aquatic ecosystems in catchments.
Sammendrag
The morphological ontogeny of Nanhermannia sellnicki Forsslund, 1958 is described and illustrated. In all juvenile stages the bothridial seta is minute, and two pairs of exobothridial setae are present (exa reduced to its alveolus, exp short). In the larva, the seta f1 is setiform but in the nymphs it is unobservable among cuticular tubercles. Most prodorsal and gastronotal setae of the larva are short while thouse of nymphs are long; seta in and all gastronotal and adanal setae are inserted in small individual depressions. In all instars the leg segments are oval in cross section and relatively thick, and most setae on tarsi are relatively short, thick or conical. The seta d accompanies solenidion σ on all genua, φ1 on tibia I and φ on other tibiae.
Forfattere
Susanthika Dhanapala Helitha Nilmalgoda Miyuru Gunathilake Upaka Rathnayake Eranga M. WimalasiriSammendrag
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Forfattere
Junbin ZhaoSammendrag
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Forfattere
Rolf David Vogt Petr Porcal Josef Hejzlar Ma. Cristina Paule‐Mercado Ståle Haaland Cathrine Brecke Gundersen Geir Orderud Bjørnar EikebrokkSammendrag
Increasing levels of dissolved organic matter (DOM) in watercourses in the northern hemisphere are mainly due to reduced acid rain, climate change, and changes in agricultural practices. However, their impacts vary in time and space. To predict how DOM responds to changes in environmental pressures, we need to differentiate between allochthonous and autochthonous sources as well as identify anthropogenic DOM. In this study we distinguish between allochthonous, autochthonous, and anthropogenic sources of DOM in a diverse watercourse network by assessing effects of land cover on water quality and using DOM characterization tools. The main sources of DOM at the studied site are forests discharging allochthonous humic DOM, autochthonous fulvic DOM, and runoff from urban sites and fish farms with high levels of anthropogenic DOM rich in protein‐like material. Specific UV absorbency (sUVa) distinguishes allochthonous DOM from autochthonous and anthropogenic DOM. Anthropogenic DOM differs from autochthonous fulvic DOM by containing elevated levels of protein‐like material. DOM from fishponds is distinguished from autochthonous and sewage DOM by having high sUVa. DOM characteristics are thus valuable tools for deconvoluting the various sources of DOM, enabling water resource managers to identify anthropogenic sources of DOM and predict future trends in DOM
Forfattere
Raúl Ochoa-Hueso Manuel Delgado-Baquerizo Anita C. Risch Louise Ashton David Augustine Nicolas Bélanger Scott Bridgham Andrea J. Britton Viktor J. Bruckman J. Julio Camarero Gerard Cornelissen John A. Crawford Feike A. Dijkstra Amanda Diochon Stevan Earl James Edgerley Howard Epstein Andrew Felton Julien Fortier Daniel Gagnon Ken Greer Hannah M. Griffiths Caroline Halde Hans Martin Hanslin Lorna I. Harris Jeremy A. Hartsock Paul Hendrickson Knut Anders Hovstad Jia Hu Arun D. Jani Kelcy Kent Deirdre Kerdraon-Byrne Sat Darshan S. Khalsa Derrick Y. F. Lai France Lambert Jalene M. LaMontagne Stéphanie Lavergne Beth A. Lawrence Kim Littke Abigail C. Leeper Mark A. Licht Mark A. Liebig Joshua Lynn Janet E. Maclean Vegard Martinsen Marshall D. McDaniel Anne C. S. McIntosh Jessica R. Miesel Jim Miller Michael J. Mulvaney Gerardo Moreno Laura Newstead Robin J. Pakeman Jan Pergl Bradley D. Pinno Juan Piñeiro Kathleen Quigley Troy M. Radtke Paul Reed Víctor Rolo Jennifer Rudgers P. Michael Rutherford Emma J. Sayer Lilia Serrano-Grijalva Maria Strack Nicole Sukdeo Andy F. S. Taylor Benoit Truax Leonard J. S. Tsuji Natasja van Gestel Brenda M. Vaness Kevin Van Sundert Michaela Vítková Robert Weigel Meaghan J. Wilton Yuriko Yano Ewing Teen Eric BremerSammendrag
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Forfattere
Daniel RasseSammendrag
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