1.2 Coordonnées des personnes-ressources et des institutions impliquées dans l'évaluation et la documentation de l'Approche

Nom du ou des institutions qui ont facilité la documentation/ l'évaluation de l'Approche (si pertinent)

University of Reading (University of Reading) - Royaume-Uni

1.3 Conditions relatives à l'utilisation par WOCAT des données documentées

Quand les données ont-elles été compilées (sur le terrain)?

03/05/2016

Le compilateur et la(les) personne(s) ressource(s) acceptent les conditions relatives à l'utilisation par WOCAT des données documentées:

Oui

1.4 Références au(x) questionnaire(s) sur les Technologies de GDT

2.1 Courte description de l'Approche

Acidification treatments were applied to improved pastures in an attempt to restore plots to low-intensity grazing land

2.2 Description détaillée de l'Approche

Description détaillée de l'Approche:

Aims / objectives: To convert the area from intensive pastureland to a semi-natural state with low intensity grazing through alteration of the soil pH. This change in land-use should have a positive effect on both above- and belowground biodiversity.

Methods: Plots were established on two adjacent farms owned by National Trust near Wareham, Dorset (Newlines Farm and Hartland Farm). A control and two sulphur amendments were compared on plots on ten fields (five from each farm) on 50 m x 50 m plots. Elemental sulphur (Brimestone 90TM) or ferrous sulphate (Mistrale “Wet Copperas” 50TM) were applied at equal rates of 2000 kg ha-1 in May 2000 and a second application of 1600 kg ha-1 in March 2001.

Stages of implementation: Treatments were applied in 2000 and 2001. Periodic monitoring has been conducted to monitor changes in plant diversity and soil chemical and biological properties.

Role of stakeholders: Stakesholders played an active role in identifying management options and implementing the technology. When the original plots were established, a charitable organisation was the primary stakeholder. For the intent of the current project, other stakeholders became involved, including parish council, landowners, and conservation organisations.

Other important information: Acidification treatments were applied to plots on the Isle of Purbeck that had previously been used for arable production and then high intensity grazing. The site is located on acidic fluvially-deposited soil and was in lowland heath until the middle of the 20th century at which time the land was tilled and treatments of rock phosphate, marl and chalk were added to increase soil pH and nutrient availability and improve the potential of the land for agricultural production.

2.3 Photos de l'approche

2.5 Pays/ région/ lieux où l'Approche a été appliquée

2.6 Dates de début et de fin de l'Approche

2.7 Type d'Approche

• fondé sur un projet/ programme

2.8 Principaux objectifs de l'Approche

The Approach focused mainly on other activities than SLM (soil, pH, below-ground biodiversity, low-intensity grazing)

To manage soil pH change and associated effects on above and below-ground diversity and function

The SLM Approach addressed the following problems: Management of soil pH and land use change to less intensive system

2.9 Conditions favorisant ou entravant la mise en œuvre de la(des) Technologie(s) appliquée(s) sous l'Approche

3.1 Parties prenantes impliquées dans l'Approche et rôles

3.2 Participation des exploitants locaux des terres/ communautés locales aux différentes phases de l'Approche

	Participation des exploitants locaux des terres/ communautés locales	Spécifiez qui était impliqué et décrivez les activités
initiation/ motivation	soutien extérieur	Land owners who acquired national support
planification	soutien extérieur	By specialist
mise en œuvre	interactive	By land owner and specialist
suivi/ évaluation	soutien extérieur	By Specialist
Research	soutien extérieur	By specialist

3.4 Prises de décision pour la sélection de la Technologie/ des Technologies

Indiquez qui a décidé de la sélection de la Technologie/ des Technologies à mettre en œuvre:

• principalement les spécialistes de la GDT, après consultation des exploitants des terres

Expliquez:

Decisions on the method of implementing the SLM Technology were made by mainly by land users supported by SLM specialists

4.1 Renforcement des capacités/ formation

Une formation a-t-elle été dispensée aux exploitants des terres/ autres parties prenantes?

Oui

Spécifiez qui a été formé:

• exploitants des terres
• personnels/ conseillers de terrain

Formats de la formation:

• entre agriculteurs (d'exploitants à exploitants)
• réunions publiques

4.2 Service de conseils

Les exploitants des terres ont-ils accès à un service de conseils?

Oui

Spécifiez si le service de conseils est fourni:

• dans les champs des exploitants?

• Public meetings

Décrivez/ commentez:

Advisory service was not foreseen for this approach

Advisory service is totally inadequate to ensure the continuation of land conservation activities; No additional government funding has been acquired.

4.3 Renforcement des institutions (développement organisationnel)

Des institutions ont elles été mises en place ou renforcées par le biais de l'Approche?

• non

4.4 Suivi et évaluation

Le suivi et l'évaluation font ils partie de l'Approche? :

Oui

Commentaires:

bio-physical aspects were regular monitored by project staff through observations

bio-physical aspects were regular monitored by project staff through measurements

technical aspects were regular monitored by project staff through observations

technical aspects were regular monitored by project staff through measurements

area treated aspects were regular monitored through observations

area treated aspects were regular monitored through measurements

There were no changes in the Approach as a result of monitoring and evaluation

There were no changes in the Technology as a result of monitoring and evaluation

4.5 Recherche

La recherche a-t-elle fait partie intégrante de l’Approche?

Oui

Spécifiez les thèmes:

• écologie
• technologie

Donnez plus de détails et indiquez qui a mené ces recherches:

Research on the approach has been carried out by specialists at Bournemouth University and the University of Reading, UK.

Research was carried out on-farm

5.1 Budget annuel de la composante GDT de l'Approche

Si le budget annuel précis n'est pas connu, indiquez une fourchette:

• 10 000-100 000

Commentez (par ex. principales sources de financement/ principaux bailleurs de fonds):

Approach costs were met by the following donors: government (Department of Environment, Food & Rural Affairs): 50.0%; national non-government (National Trust): 30.0%; other (University): 20.0%

5.2 Soutiens financiers/ matériels fournis aux exploitants des terres

Les exploitants des terres ont-ils reçu un soutien financier/ matériel pour la mise en œuvre de la Technologie/ des Technologies?

Oui

5.3 Subventions pour des intrants spécifiques (incluant la main d'œuvre)

• intrants agricoles

Si la main d'œuvre fournie par les exploitants des terres était un intrant substantiel, elle était:

• volontaire

5.4 Crédits

Des crédits ont-ils été alloués à travers l'Approche pour les activités de GDT?

Non

6.1 Impacts de l'Approche

6.2 Principale motivation des exploitants des terres pour mettre en œuvre la GDT

6.3 Durabilité des activités de l'Approche

Les exploitants des terres peuvent-ils poursuivre ce qui a été mis en œuvre par le biais de l'Approche (sans soutien extérieur)?

• oui

6.4 Points forts/ avantages de l'Approche

Points forts/ avantages/ possibilités du point de vue de l'exploitant des terres
Decreased spending on inputs where the only input in the system in dung from cattle grazing (How to sustain/ enhance this strength: Continue grazing at a low enough density to allow adequate plant regrow)
Decreased labour required for management
Decreased compaction since regular use of tractors on site is no longer required (How to sustain/ enhance this strength: Attempt to minimizing compaction by grazing livestock)

Points forts/ avantages/ possibilités du point de vue du compilateur ou d'une autre personne ressource clé
The conversion in land use from a improved agriculture to a semi- natural low input grazing system should have a positive effect on above- and belowground biodiversity.
Considering that the Isle of Purbeck was historically a region of cultural importance, returning the system to a more natural state has important implications for the cultural and recreational value of the land.
Low input systems can increase resilience of the system to global change

6.5 Faiblesses/ inconvénients de l'Approche et moyens de les surmonter

Faiblesses/ inconvénients/ risques du point de vue de l’exploitant des terres	Comment peuvent-ils être surmontés?
Fertilizer application rate too high for one application	Smaller, regular additions over several years
Decrease in economic returns
Shrub encroachment (i.e. gorse; Alex europaeus) can be a problem when converting to low input pasture land in this region.	Grazing, mowing, and chemical herbicides are some options for slowing invasions.

Faiblesses/ inconvénients/ risques du point de vue du compilateur ou d'une autre personne ressource clé	Comment peuvent-ils être surmontés?
Over time nutrients are being drawn down but exporting meat off the land with no inputs	Periodic applications of nutrients may be required to ensure long-term fertility of the system
Land use change and restoration are slow process and may result in economic losses on managed lands

7.1 Méthodes/ sources d'information

7.2 Références des publications disponibles

Titre, auteur, année, ISBN:

Re-creation of heathland on improved pasture using top soil removal and sulphur amendments: Edaphic drivers and impacts of ericoid mycorrhizas, Diaz, A., Green, I., Tibbett, M., 2008Heathland restoration on former agricultural land: Effects of artificial acidification on the availability and uptake of toxic metal cation, Green, I., Stockdale, J., Tibbett, M., Diaz, I., 2007Are sulphurous amendments an effective tool in the restoration of heathland and acidic grassland after four decades of rock phosphate fertlization, Tibbett, M., Diaz, A., 2005The restoration of heathland and acid grassland at Hartland and Newline Farms, Tibbett, M., Diaz, A., 2001

Disponible à partir d'où? Coût?

Biological Conservation, 141:1628-1635, http://www.sciencedirect.com/science/article/pii/S0006320708001353Water Air Soil Pollution, 178:287-295, http://link.springer.com/article/10.1007/s11270-006-9197-8Restoration Ecology, 13:83-91, http://onlinelibrary.wiley.com/doi/10.1111/j.1526-100X.2005.00010.x/epdfFirst Year Report to National Trust, Purbeck

Titre, auteur, année, ISBN:

Heathland restoration on former agricultural land: Effects of artificial acidification on the availability and uptake of toxic metal cation, Green, I., Stockdale, J., Tibbett, M., Diaz, I., 2007

Disponible à partir d'où? Coût?

Water Air Soil Pollution, 178:287-295, http://link.springer.com/article/10.1007/s11270-006-9197-8

Titre, auteur, année, ISBN:

Are sulphurous amendments an effective tool in the restoration of heathland and acidic grassland after four decades of rock phosphate fertlization, Tibbett, M., Diaz, A., 2005

Disponible à partir d'où? Coût?

Restoration Ecology, 13:83-91, http://onlinelibrary.wiley.com/doi/10.1111/j.1526-100X.2005.00010.x/epdf

Titre, auteur, année, ISBN:

The restoration of heathland and acid grassland at Hartland and Newline Farms, Tibbett, M., Diaz, A., 2001

Disponible à partir d'où? Coût?

First Year Report to National Trust, Purbeck