Search results for " grassland"

showing 5 items of 65 documents

Diversifying crop rotations with temporary grasslands: potentials for weed management and farmland biodiversity

2010

Fruchtfolgen können dazu dienen, die kontinuierliche Selektion von Unkrautarten zu verhindern, die an eine bestimmte Kultur angepasst sind. Dies könnte dem Unkrautmanagement, der Einsparung von Herbiziden, und der Biodiversität dienen. Heutige, sehr einfache Furchtfolgen könnten durch mehrjährige Futterkulturen diversifiziert werden. Die Einflüsse solcher mehrjähriger Kulturen auf Unkräuter wurden in vier Ansätzen untersucht : 1) Vegetationsaufnahmen auf 632 Feldern in Westfrankreich zeigten, dass die Unkrautzusammensetzung zwischen mehrjährigen Futterkulturen und einjährigen Kulturen stark variiert. Der Vergleich von Feldern vor, während und nach mehrjährigen Futterkulturen legte nahe, das…

perennial forage crops[SDE] Environmental SciencesPost-cutting regrowth dynamicsPopulation dynamicsEcosystem service[SDV]Life Sciences [q-bio]Croissance post-faucheÉcologie des prairiesPrédation de grainesService écosystémiqueIntegrated weed managementComposition de communauté de plantesPlant community compositionPrairie temporaireIntegrated Weed Managementcrop rotationBiodiversitätCrop rotationProtection intégréeEnnemis des cultures -- Lutte biologique contreLuzerneddc:630biodiversityGroupe fonctionnelGranivorie[SDV.SA] Life Sciences [q-bio]/Agricultural sciencesDynamique de populationBiological pest controlPlantes adventicesFruchtfolgePerennial forage cropsIntegrierter PflanzenschutzAgricultureRotation des culturesGranivorySeed predationLutte biologiqueecosystem serviceCulture pérenne fourragère[SDV] Life Sciences [q-bio]Temporary grasslandAgro-écologieÉcologie agricole[SDE]Environmental SciencesAgrarökologieFunctional groupÖkosystemdienstleistungAgroecologyMedicago sativa
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Mapping productivity and essential biophysical parameters of cultivated tropical grasslands from sentinel-2 imagery.

2020

Nitrogen (N) is the main nutrient element that maintains productivity in forages

productivityTeledetecció010504 meteorology & atmospheric sciencesNitrogenTropical and subtropical grasslands savannas and shrublandsUrochloa brizanthaBiomassaPanicum01 natural sciencesNormalized Difference Vegetation IndexGrasslandCapim Urochloalcsh:AgriculturePastagemremote sensingVegetation indexUrochloaNitrogênioLeaf area indexPASTAGENS0105 earth and related environmental sciencesProductivityBiomass (ecology)geographygeography.geographical_feature_categoryleaf area indexbiology<i>Panicum</i>PasturesUrochloa decumbenslcsh:S04 agricultural and veterinary sciencesVegetationRemote sensingbiology.organism_classificationTropical grasslandsBiomass productionAgronomyProductivity (ecology)vegetation indicesLeaf area index040103 agronomy & agriculture0401 agriculture forestry and fisheriesEnvironmental scienceSentinel-2<i>Urochloa</i>Agronomy and Crop ScienceImatges ProcessamentSensoriamento Remoto
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Conservation of traditional rural biotopes in Finland : a social-ecological approach

2018

This research focuses on conservation of traditional rural biotopes, which are biodiverse meadows and wood-pastures that are dependent on management through grazing or mowing. These low-intensity management actions have become rare as a result of agricultural modernisation. I have utilised a social-ecological approach in order to seek for the most critical factors hindering conservation of traditional rural biotopes in Finland. I also explore practical solutions that have the potential to improve their conservation status. The coverage of traditional rural biotopes has faced severe habitat loss during the last 150 years. This has led to endangerment of several habitat types and species that…

resilienssiagri-environment schemesmaatalouspolitiikkaperinnemaisemakedotluontoarvotympäristöpolitiikkaluonnonlaitumetlandscapeniitytwood-pasturessocial-ecological systemsosallistaminenhigh-nature-value farmingmaatalousympäristömetsälaitumetluonnonsuojelusemi-natural grasslandsperinnebiotooppiresilience
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Database Species-Area Relationships in Palaearctic Grasslands

2012

The Database Species-Area Relationships in Palaearctic Grasslands (GIVD ID EU-00-003) is an initiative of the European Dry Grassland Group (EDGG) and primarily functions as repository for all data sampled during the EDGG Research Expeditions. During these expeditions two types of highly standardised sampling of dry grassland vegetation in the Palaearctic realm are carried out: (i) nested-plot sampling on squares of 0.0001, 0.001, 0.01, 0.1, 1, 10, and 100 m2; (ii) additional normal releves of 10-m2 plots. For all plot sizes, the terricolous vascular plants, bryophytes, and lichens are recorded that are superficially present (shoot presence). Additionally, for all 10-m2 plots species cover i…

soil data.Mediterranean climateRange (biology)Koelerio-Corynephoretealichencomputer.software_genreGrasslandEuropean Dry Grassland Group (EDGG)Lichendry grasslandbiodiversityGeneral Environmental Sciencebryophytegeographygeography.geographical_feature_categoryDatabaseLand useSampling (statistics)VegetationMediterranean grasslandTaxonscale dependenceSettore BIO/03 - Botanica Ambientale E ApplicataFestuco-BrometeaGeneral Earth and Planetary Sciencescomputer
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Lauksaimniecības marginalizācijas ietekme uz aizsargājamo zālāju saglabāšanos Latvijā

2018

Maģistra darba mērķis - noskaidrot, kāda ir lauksaimniecības marginalizācijas ietekme uz aizsargājamo zālāju saglabāšanos Latvijā. Pētījums aptver visu Latviju. Izmantoti dabisko zālāju izplatības dati uz 2015. gadu un dati par lauksaimniecības zemju apsaimniekošanu 2017.gadā, kā arī augšņu kvalitātes dati. Datu analīze veikta 5 x5 km tīkla šūnā, analīzei izmantojot aprakstošo statistiku (Manna-Vitnija U-tests) un veikta daudzfaktoru regresijas analīze ar Tweedie modeļa datu sadalījumu. 2015.gadā Latvijā aizsargājamie zālāji aizņēma 0,77 % (50 156 ha) no valsts teritorijas. Bieži sastopamie biotopi valstī aizņem lielāko platību - 41 169 ha, bet retie un kompleksie biotopi aizņem, attiecīgi,…

ĢeogrāfijaLatvijas rajonēšana pēc lauksaimniecības potenciālasemi-natural grassland habitatsregionalization of Latvia according to agricultural potentialdabisko zālaju biotopiagrovides atbalsts
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