Výsledky vyhledávání - "Karna Hansson"

Chemical fertility of forest ecosystems. Part 2: Towards redefining the concept by untangling the role of the different components of biogeochemical cycling

Autor: Jean-Paul Laclau, Laurent Saint-André, Louis Mareschal, Arnaud Legout, Claude Nys, Karna Hansson, Manuel Nicolas, Gregory van der Heijden, Jacques Ranger

Publikováno v: Forest Ecology and Management
Forest Ecology and Management, Elsevier, 2020, 461, pp.117844. ⟨10.1016/j.foreco.2019.117844⟩

Many forest ecosystems are developed on acidic and nutrient-poor soils and it is not yet clearly understood how forests sustain their growth with low nutrient resources. In forestry, the soil chemical fertility is commonly defined, following concepts

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::233f737a0ccaa11faba16ef42bd4189f
https://hal.inrae.fr/hal-02534149

Zobrazit plný text záznamu

Chemical fertility of forest ecosystems. Part 1: Common soil chemical analyses were poor predictors of stand productivity across a wide range of acidic forest soils

Autor: Claude Nys, Arnaud Legout, Jean-Paul Laclau, Gregory van der Heijden, Karna Hansson, Manuel Nicolas, Laurent Saint-André, Louis Mareschal, Jacques Ranger

Publikováno v: Forest Ecology and Management
Forest Ecology and Management, Elsevier, 2020, 461, pp.117843. ⟨10.1016/j.foreco.2019.117843⟩

Forest soil fertility can be defined as a combination of physical, chemical and biological factors characterising the biomass production capacity of the soil. However, numerous ecological variables affect tree growth and the aim of the present study

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::478f1061e64e203cbb0c57ceb7cc81fd
https://doi.org/10.1016/j.foreco.2019.117843

Zobrazit plný text záznamu

Sustainability issues related to forest soils: Forest soil fertility: definition and management

Autor: Grégory van der Heijden, Arnaud Legout, Karna Hansson, Jean-Paul Laclau, Laurent AUGUSTO, Michel Vennetier, Antoine Versini, Jacques Ranger

Publikováno v: Sustainable Intensification of Planted Forests: How far can we go?
Sustainable Intensification of Planted Forests: How far can we go?, Jun 2016, Biarritz, France. pp.33 slides
HAL

National audience; Many forest ecosystems grow on acid and nutrient poor soils. In the context of decreasing atmospheric inputs and the intensification of silvicultural practices (changing tree species, increasing biomass exportation, forest mechaniz

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::9510722838b6e5bdbd3a8a51cc904a03
https://hal.inrae.fr/hal-02793815/document

Zobrazit plný text záznamu

Reconcilable differences: a joint calibration of fine-root turnover times with radiocarbon and minirhizotrons

Autor: Marion Schrumpf, Karna Hansson, Bernhard Ahrens, Emily F. Solly

Publikováno v: New Phytologist
New Phytologist, Wiley, 2014, 204 (4), pp.932-942. ⟨10.1111/nph.12979⟩

We used bomb-radiocarbon and raw minirhizotron lifetimes of fine-roots (

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8cb9ef401f60496c9b7c5066216a6381
https://hdl.handle.net/11858/00-001M-0000-002C-899B-611858/00-001M-0000-0019-DC9B-911858/00-001M-0000-0024-54EB-7

Zobrazit plný text záznamu

Fine root production and turnover of tree and understorey vegetation in Scots pine, silver birch and Norway spruce stands in SW Sweden

Autor: Karna Hansson, Holger Lange, Heljä-Sisko Helmisaari, Shambhu Prasad Sah

Publikováno v: Forest Ecology and Management
Forest Ecology and Management, Elsevier, 2013, 309, pp.58-65. ⟨10.1016/j.foreco.2013.01.022⟩

Fine roots contribute to net primary production in forests, but knowledge of fine root longevity and turnover is still incomplete and limited to few tree species. In this study, we used minirhizotrons to compare fine root biomass, longevity and turno

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::00931916645a0f177908d6fc567d1c29
http://gala.gre.ac.uk/id/eprint/36373/7/36373_HANSSON_Fine_root_production.pdf

Zobrazit plný text záznamu

Fertilité des sols : concept de base

Autor: Arnaud Legout, Karna Hansson, Jean-Paul Laclau, Grégory van der Heijden, Laurent AUGUSTO, Michel Vennetier, Jacques Ranger

Publikováno v: Ateliers Regefor 2013 "La gestion de la fertilité des sols est-elle à un tournant ?"
Ateliers Regefor 2013 "La gestion de la fertilité des sols est-elle à un tournant ?", Jun 2013, Nancy, France
HAL

National audience

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::3b065b3e7def44d0023069646a456089
https://hal.inrae.fr/hal-02807401

Zobrazit plný text záznamu

Carbon and nitrogen pools and fluxes above and below ground in spruce, pine and birch stands in southern Sweden

Autor: Karna Hansson, Tryggve Persson, Mats Olsson, Heljä-Sisko Helmisaari, Mats Fröberg, Bengt A. Olsson, Dan Berggren Kleja

Publikováno v: Forest Ecology and Management
Forest Ecology and Management, Elsevier, 2013, 309, pp.28-35. ⟨10.1016/j.foreco.2013.05.029⟩

We synthesised results on soil carbon (C) and nitrogen (N) fluxes and the accumulation of soil organic C and N under adjacent 50-year-old Norway spruce, Scots pine and silver birch stands growing on similar soils and evaluated the different processes

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::df016a1bbf2cb7c37c561b7edfd2764b
https://hal.inrae.fr/hal-02651742

Zobrazit plný text záznamu

Dissolved organic carbon and nitrogen leaching from Scots pine, Norway spruce and silver birch stands in southern Sweden

Autor: Ghasem Alavi, Dan Berggren Kleja, Mats Fröberg, Karna Hansson

The effects of three common tree species – Scots pine, Norway spruce and silver birch – on leaching of dissolved organic carbon and dissolved nitrogen were studied in an experimental forest with podzolised soils in southern Sweden. We analyzed so

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dd5c516ad83b96784702b101c835297d
http://pub.epsilon.slu.se/8420/

Zobrazit plný text záznamu

Amounts of carbon mineralised and leached as DOC during decomposition of Norway spruce needles and fine roots

Autor: Karna Hansson, Hanna Larsson, Dan Berggren Kleja, Karsten Kalbitz

Publikováno v: Soil Biology and Biochemistry, 42(2), 178-185. Elsevier

Changes in climate or forest management practices leading to increased litter production will most likely cause increased leaching rates of dissolved organic carbon (DOC) from the O horizon. The rhizosphere is often assumed to have a large carbon flu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::54d3d4a6426742efacb4b6b734f79135
http://gala.gre.ac.uk/id/eprint/36377/14/36377_HANSSON_Amounts_of_carbon_mineralised.pdf

Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání