Stikkord: jordkvalitet

Global Soil Biodiversity Atlas

| Type artikkel: Rapport

Kategori: Erosjon, Humus, Jordbiologi, Jordpakking, Jordvern, Klima og miljø, Matjord

2015 was the United Nations International Year of Soils and, for the first time, soils and the life within them were in the spotlight globally. We are pleased therefore, that an international group of experts and scientists from the European Commission’s Joint Research Centre (JRC), in close collaboration with colleagues from the Commission’s Directorate-General for the Environment and the Global Soil Biodiversity Initiative, have produced the first ever Global Soil Biodiversity Atlas.

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Soil quality – A critical review

| Type artikkel: Publisert studie

Kategori: Matjord

Sampling and analysis or visual examination of soil to assess its status and use potential is widely practiced from plot to national scales. However, the choice of relevant soil attributes and interpretation of measurements are not straightforward, because of the complexity and site-specificity of soils, legacy effects of previous land use, and trade-offs between ecosystem services. Here we review soil quality and related concepts, in terms of definition, assessment approaches, and indicator selection and interpretation.

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Simulating soil fertility management effects on crop yield and soil nitrogen dynamics in field trials under organic farming in Europe

| Type artikkel: Publisert studie

Kategori: Humus, Matjord, Næringsstoffer, Økologisk landbruk

Soil fertility building measures should be explored at the short and long-term for an adequate evaluation of their impact on sustaining yields and of its environmental consequences in crop rotations under organic farming. For such a purpose, process-based crop models are potential useful tools to complement and upscale field observations under a range of soil and climatic conditions.

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A Gardener’s Influence on Urban Soil Quality

| Type artikkel: Publisert studie

Kategori: Matjord, Urbant landbruk

Gardens are hot spots for urban biodiversity and provide habitats for many plant and animal species, both above- and below-ground. Furthermore, gardens provide a wide range of ecosystem services, including carbon (C) storage and nutrient cycling. Although the soil is the foundation of sustainable gardens providing those ecosystem services, very little is known about the consequences of garden management on soil quality.

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Effects of agricultural management practices on soil quality: A review of long-term experiments for Europe and China

| Type artikkel: Publisert studie

Kategori: Matjord, Produksjonsmetoder

In this paper we present effects of four paired agricultural management practices (organic matter (OM) addition versus no organic matter input, no-tillage (NT) versus conventional tillage, crop rotation versus monoculture, and organic agriculture versus conventional agriculture) on five key soil quality indicators, i.e., soil organic matter (SOM) content, pH, aggregate stability, earthworms (numbers) and crop yield.

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Correlations between Polyacetylene Concentrations in Carrot (Daucus carota L.) and Various Soil Parameters

| Type artikkel: Publisert studie

Kategori: Grønnsaker, Gulrot

This study assessed the concentrations of three falcarinol-type polyacetylenes (falcarinol, falcarindiol, falcarindiol-3-acetate) in carrots and the correlations between these and different soil traits. A total of 144 carrot samples, from three different harvests taken a single season, were analysed in terms of their polyacetylene concentrations and root development.

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Phosphorus availability on many organically managed farms in Europe

| Type artikkel: Publisert studie

Kategori: Fosfor, Næringsstoffer

Maintaining sufficient soil phosphorus (P) levels for non-limiting crop growth is challenging in organic systems since off-farm inputs of P are restricted. This study assessed the status of P on organic farms in Europe using soil test results for extractable P. Data was obtained from published literature, unpublished theses, and various national and regional databases of soil test values.

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PRINCIPLES FOR HIGH FUNCTIONING SOILS

Soil health is the continued capacity of a soil to function as a vital, living ecosystem that sustains plants, animals, and humans. Only living things can have “health,” so viewing soil as a living, breathing ecosystem reflects a shift in the way we view and manage our nation’s soils. Soil isn’t an inert growing medium, but rather is the home of billions of bacteria, fungi, and other organisms that together create an intricate symbiotic ecosystem. This ecosystem can be managed to support plants and animals, by cycling nutrients, absorbing, draining and retaining rainwater and snowmelt for use during dry periods, filtering and buffering water to remove potential pollutants, and providing habitat for the soil biological population to flourish and diversify to keep the ecosystem functioning well.

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Jordsmonnstatistikk Norge

This report presents soil statistics for agricultural land in Norway. Soil data from the soil survey form the basis of the statistics. The survey is done as a sample survey on 0.9 km2 plots, in a predefined 9x9 km2 grid system. Hence, the statistics for Norway is an estimate. The area distribution of a number of topics is presented (both in decares (1 decare = 0,1 hectare) and percent). Soil properties vary between different regions in Norway, mostly due to a big variety between the soil forming factors. This variation must be taken into account in the management of the soil resource, for the soil to maintain the functions for producing food in a sustainable way.

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Cover crops influence soil properties and tree performance in an organic apple (Malus domestica Borkh) orchard in northern Patagonia

| Type artikkel: Publisert studie

Kategori: Eple, Erosjon, Frukt, Humus, Jordbiologi, Matjord, Matplanter

Little is known about the effects of cover crops on soil properties in organic orchards. To fill this gap, this work aimed at examining the effects of several cover crops on soil fertility, nitrate dynamics, populations of nematodes and tree performance in an organic orchard of apple cv. Royal Gala/EM 26 planted in 1994 at 4 × 2 m.

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Threats to soil quality in Denmark – A review of existing knowledge in the context of the EU soil thematic strategy

| Type artikkel: Rapport

Kategori: Erosjon, Jordpakking, Matjord

The EU Commission is preparing a proposal for a Soil Framework Directive with the purpose of protecting the soil resources in Europe. The proposal identifies six major threats to a sustained quality of soils in Europe. This report addresses the threats that are considered the most relevant under the prevailing soil and climatic conditions in Denmark: compaction, soil organic matter decline, and erosion by water and tillage.

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Preventing and remediating degradation of soils in Europe through Land Care

Soils in the European Union are an essential yet often undervalued and degraded resource. Soils deliver numerous important functions and ecosystem services, including, for example, water and nutrient cycling, biomass and food production, or habitats for species. At the same time, soils are affected by a range of degradation processes, in particular: erosion, floods and landslides, loss of soil organic matter, salinisation, contamination, compaction, sealing, and loss of soil biodiversity (COM 2006).

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Fruit and Soil Quality of Organic and Conventional Strawberry Agroecosystems

| Type artikkel: Publisert studie

Kategori: Biodynamisk, Bær, Humus, Jordbiologi, Matjord, Matplanter

Our findings show that the organic strawberry farms produced higher quality fruit and that their higher quality soils may have greater microbial functional capability and resilience to stress. These findings justify additional investigations aimed at detecting and quantifying such effects and their interactions.

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DRAINIMP

| Type artikkel:
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Kategori: Erosjon, Jordpakking, Matjord

Drenering som investering i jordkapital har hatt låg prioritet i fleire tiår, og det er i dag ein oppsamla trong for drenering. Grasavlingane har stagnert, og dårleg drenering og jordfysisk tilstand, uheldig jordpakking, auka areal i kvar brukseining og auka vekt av traktor og utstyr kombinert med auka normalårsnedbør, er moglege årsaker. Drenering, jordpakking og gjødsling er peika ut som viktige forsøksområde for å redusere N2O emisjonen frå landbruket. Grøfteforsøka som ein byggjer tilrådingane på i Norge er til dels svært gamle, og tilpassa eit driftsregime vesentleg annleis enn i dag. I landbruket vert fokus retta mot god agronomi.

Prosjektet har som mål å auke innsatsen rundt drenering i norsk forskning, utdanning og rådgjeving. Prosjektet er praktisk retta mot landbruket gjennom testing av to ulike dreneringsmetodar; grøfting med røyr på mineraljord og omgraving på torvjord. Det er etablert grøftefeltet på mineraljord i Askvoll med tre grøfteintensitetar, to driftsintensitetar og to gjødslingsnivå og det er etablert feltforsøk på omgravd og grøfta myr på Fræna. Ein vil teste effekten av dreneringsintensitet og drift på produktivitet og N-avrenning, jordpakking og jordfysikk, klimagassemisjon (N2O, CH4) i hovudsak i vekstsesongen. Ut frå data vil prosjektet definere dreneringskriteria. Økonomien i grøfting på enkeltgardsnivå vil utarbeidast.


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Status of the World’s Soil Resources

The SWSR will constitute the reference document on the status of global soil resources with a strong regional assessment on soil change. The information is based on peer-reviewed scientific literature, complemented with expert knowledge and reliable project outputs (mainly FAO ones). It provides a description and a ranking of ten major soil threats that endanger ecosystem functions, goods and services globally and in each region separately. Additionally, it describes direct and indirect pressure son soils and ways and means to combat soil degradation at all levels.


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SoilCARE

SoilCARE er finansiert av EU og går over en periode på 60 måneder fra 2016-2021. Prosjektet koordineres av Universitetet i Wageningen, Nederland og utover det deltar 28 institusjoner fra hele Europa i prosjektet. NIBIO – Norsk institutt for bioøkonomi utgjør den norske samarbeidspartneren under ledelse av seniorforsker og avdelingsleder Jannes Stolte.

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Mineralisering av karbon og nitrogen etter pløing av eng 2002-2006

<div>Pløying av eng kan skape ekstreme situasjonar med omsyn på utvasking av N og problem knytt til vurdering av næringsforsyning. I økologisk drift er god utnytting av tilgjengelege N-ressursar særleg viktig fordi N oftast er avgrensande for plantevekst og fordi miljøaspektet er vektlagt. <span style="line-height: 1.5em;">Prosjektet skal klarlegge potensialet for mineralisering av C og N etter pløying av eng med ulik alder og innhald av kløver.</span></div>

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Faktaark om jordkvalitet

| Type artikkel: Faktaark

Kategori: Matjord

Jord er en av våre viktigste naturlige ressurser, som sammen med vann og luft danner grunnlag for liv på jorda. All jord er ikke god jord.

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