Zobrazeno 1 - 10
of 275
pro vyhledávání: '"Kaj Sand‐Jensen"'
Publikováno v:
Earth and Space Science, Vol 9, Iss 12, Pp n/a-n/a (2022)
Abstract Streams in cultivated lowlands are commonly supersaturated with CO2 and are a source of CO2 to the atmosphere. Great uncertainties exist regarding the spatiotemporal variations of CO2 concentrations and emission rates in stream‐lake fluvia
Externí odkaz:
https://doaj.org/article/ec28249bf4a64675af1c192f73101a22
Publikováno v:
Plants, Vol 11, Iss 13, p 1683 (2022)
Plant species often separate strongly along steep environmental gradients. Our objective was to study how coupling between plant physiology and environmental conditions shapes vegetation characteristics along a distinct hydrological gradient. We ther
Externí odkaz:
https://doaj.org/article/a6839e217d1d4d37a4e09749e2fb463c
Autor:
Kaj Sand-Jensen, Hans Henrik Bruun, Tora Finderup Nielsen, Ditte M. Christiansen, Per Hartvig, Jens C. Schou, Lars Baastrup-Spohr
Publikováno v:
Frontiers in Plant Science, Vol 9 (2018)
European freshwater habitats have experienced a severe loss of plant diversity, regionally and locally, over the last century or more. One important and well-established driver of change is eutrophication, which has increased with rising population d
Externí odkaz:
https://doaj.org/article/3248f7fe124b493d9dba1a3e82dbf2ab
Autor:
Kenneth Thorø Martinsen, Emil Kristensen, Lars Baastrup‐Spohr, Martin Søndergaard, Henrik Carl, Erik Jeppesen, Kaj Sand‐Jensen, Theis Kragh
Publikováno v:
Martinsen, K T, Kristensen, E, Baastrup-Spohr, L, Søndergaard, M, Carl, H, Jeppesen, E, Sand-Jensen, K & Kragh, T 2023, ' Environmental predictors of lake fish diversity across gradients in lake age and spatial scale ', Freshwater Biology, vol. 68, no. 7, pp. 1122-1135 . https://doi.org/10.1111/fwb.14090
Martinsen, K T, Kristensen, E, Baastrup-Spohr, L, Søndergaard, M, Carl, H, Jeppesen, E, Sand-Jensen, K & Kragh, T 2023, ' Environmental predictors of lake fish diversity across gradients in lake age and spatial scale ', Freshwater Biology, vol. 68, no. 7 . https://doi.org/10.1111/fwb.14090
Martinsen, K T, Kristensen, E, Baastrup-Spohr, L, Søndergaard, M, Carl, H, Jeppesen, E, Sand-Jensen, K & Kragh, T 2023, ' Environmental predictors of lake fish diversity across gradients in lake age and spatial scale ', Freshwater Biology, vol. 68, no. 7 . https://doi.org/10.1111/fwb.14090
Freshwater ecosystems have experienced a great loss of biodiversity in the recent century due to eutrophication and loss of habitats, particularly in agricultural lowlands. Some of these ecosystems have recently been re-established, or entirely new l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::459750fde8568e9fdd340e276b735b75
https://pure.au.dk/portal/da/publications/environmental-predictors-of-lake-fish-diversity-across-gradients-in-lake-age-and-spatial-scale(f098e76b-7137-486b-ad53-dcf03720f7f9).html
https://pure.au.dk/portal/da/publications/environmental-predictors-of-lake-fish-diversity-across-gradients-in-lake-age-and-spatial-scale(f098e76b-7137-486b-ad53-dcf03720f7f9).html
Autor:
Filippa Fredriksson, Marta Baumane, Lars Båstrup-Spohr, Hans Henrik Bruun, Kenneth Thorø Martinsen, Sofie Aagaard, Bjørg Friis Michelson, Kaj Sand-Jensen, Søren Jessen
Restoration and rewetting of wetlands previously drained for agriculture, is currently used to decrease net greenhouse gas (GHG) emissions, while improving biodiversity. Wetland hydro(geo)logy is known to exert a key control on GHG-retention and on c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4062d26800d045939055f62f43761fae
https://doi.org/10.5194/egusphere-egu23-17199
https://doi.org/10.5194/egusphere-egu23-17199
Autor:
Kenneth Thorø Martinsen, Nathalie Brandt Zak, Lars Baastrup‐Spohr, Theis Kragh, Kaj Sand‐Jensen
Publikováno v:
Martinsen, K T, Zak, N B, Baastrup-Spohr, L, Kragh, T & Sand-Jensen, K 2022, ' Ecosystem Metabolism and Gradients of Temperature, Oxygen and Dissolved Inorganic Carbon in the Littoral Zone of a Macrophyte-Dominated Lake ', Journal of Geophysical Research: Biogeosciences, vol. 127, no. 12, e2022JG007193 . https://doi.org/10.1029/2022JG007193
Dense submerged macrophyte stands in lakes may promote alternating daytime stratification and nighttime convective mixing, driving extensive spatiotemporal variations in water temperature, oxygen, pH, and inorganic carbon (DIC). We set out to investi
Autor:
Jonas Stage Sø, Kaj Sand-Jensen, Kenneth Thorø Martinsen, Emma Polauke, Johan Emil Kjær, Kasper Reitzel, Theis Kragh
Publikováno v:
SSRN Electronic Journal.
Publikováno v:
Sand-Jensen, K, Riis, T & Martinsen, K T 2022, ' Photosynthesis, growth, and distribution of plants in lowland streams — A synthesis and new data analyses of 40 years research ', Freshwater Biology, vol. 67, no. 7, pp. 1255-1271 . https://doi.org/10.1111/fwb.13915
Sand-Jensen, K, Riis, T & Martinsen, K T 2022, ' Photosynthesis, growth, and distribution of plants in lowland streams—A synthesis and new data analyses of 40 years research ', Freshwater Biology, vol. 67, no. 7, pp. 1255-1271 . https://doi.org/10.1111/fwb.13915
Sand-Jensen, K, Riis, T & Martinsen, K T 2022, ' Photosynthesis, growth, and distribution of plants in lowland streams—A synthesis and new data analyses of 40 years research ', Freshwater Biology, vol. 67, no. 7, pp. 1255-1271 . https://doi.org/10.1111/fwb.13915
This paper synthesises insights and offers new quantitative analyses of data gathered during 40 years of stream research by Danish researchers and international associates. Lowland Danish streams mostly drain fertile cropland and contain high nutrien
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e7aa6714765f7b9925b1fdf88249ac71
https://curis.ku.dk/portal/da/publications/photosynthesis-growth-and-distribution-of-plants-in-lowland-streams--a-synthesis-and-new-data-analyses-of-40years-research(e1dd3de9-73f8-44d5-ba25-732f5c3b6253).html
https://curis.ku.dk/portal/da/publications/photosynthesis-growth-and-distribution-of-plants-in-lowland-streams--a-synthesis-and-new-data-analyses-of-40years-research(e1dd3de9-73f8-44d5-ba25-732f5c3b6253).html
Publikováno v:
Sø, J S, Kragh, T, Sand-Jensen, K & Martinsen, K T 2022, ' Environmental drivers and sources of stream oxygen consumption in an agricultural lake catchment ', Ecological Engineering, vol. 176, 106516 . https://doi.org/10.1016/j.ecoleng.2021.106516
The combination of ongoing climate change and the historical loss of streams and wetland areas have presented new ecological challenges. These challenges became evident during a massive fish kill in Lake Fil, Denmark, in August 2018. We know that hig
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7df1e4a45ec04be38a3090a9ca232a74
https://curis.ku.dk/portal/da/publications/environmental-drivers-and-sources-of-stream-oxygen-consumption-in-an-agricultural-lake-catchment(62b675b6-bede-493e-a66c-c1f412b83e83).html
https://curis.ku.dk/portal/da/publications/environmental-drivers-and-sources-of-stream-oxygen-consumption-in-an-agricultural-lake-catchment(62b675b6-bede-493e-a66c-c1f412b83e83).html
Publikováno v:
Martinsen, K T & Sand-Jensen, K 2022, ' Predicting water quality from geospatial lake, catchment, and buffer zone characteristics in temperate lowland lakes ', Science of the Total Environment, vol. 851, 158090 . https://doi.org/10.1016/j.scitotenv.2022.158090
Lakes provide essential ecosystem services and strongly influence landscape nutrient and carbon cycling. Therefore, monitoring water quality is essential for the management of element transport, biodiversity, and public goods in lakes. We investigate