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| Nielsen, A.L.; Hald, A.B.; Badsberg, J.H.. |
| In Denmark private farmers under contract with the society manage many nature conservation areas on low-lying organic soil. In the contract the grazing system is poorly difined in relation to the goals and there is a lack of monitoring intruments for practical use in natural areas. Thus there is a need to define grazing system indicators, which should make it possible toevaluate effect from grazing and provide a feed-back to the goals. To describe the effect of grazing on the vegetation structure, detailed measurements of sward heights, species composition, species phenology, distance to flowering speecimens of Juncus effeusus I. or J. conglomeratus I. were carried out in paddocks grazed by 1st year steers at two different levels of plant species diversity... |
| Tipo: Journal paper |
Palavras-chave: Biodiversity and ecosystem services. |
| Ano: 2002 |
URL: http://orgprints.org/4279/1/4279.pdf |
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| Tybirk, K.; Hald, A.B.; Pedersen, M.B.; Sønderskov, M.. |
| Ukrudt for landmænd er vilde planter for biologer. Landbruget har i dag gode muligheder for at kontrollere ukrudtet og nye undersøgelser viser, at mængden af ukrudt visse steder har nået et historisk lavpunkt, men det omgivende samfund ønsker mere plads til den spontane natur i landskabet. Der bør være plads til lidt ukrudt i et kulturlandskab – også for landmandens egen skyld. I dette kapitel argumenterer biologerne for at det er nødvendig med lidt ukrudt og naturhensyn, hvis landmanden vil glædes over hare, agerhøne og gulspurv. Det er muligt at leve sammen – både effektivt landbrug og vilde planter. |
| Tipo: Book chapter |
Palavras-chave: Biodiversity and ecosystem services. |
| Ano: 2004 |
URL: http://orgprints.org/3603/1/3603.pdf |
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