1.2 Detalhes do contato das pessoas capacitadas e instituições envolvidas na avaliação e documentação da tecnologia

Nome do projeto que facilitou a documentação/avaliação da Tecnologia (se relevante)

Preventing and Remediating degradation of soils in Europe through Land Care (EU-RECARE )

Nome da(s) instituição(ões) que facilitou(ram) a documentação/ avaliação da Tecnologia (se relevante)

Soil Conservation Service of Iceland (Soil Conservation Service of Iceland) - Islândia

1.3 Condições em relação ao uso da informação documentada através de WOCAT

O/a compilador/a e a(s) pessoa(s) capacitada(s) aceitam as condições relativas ao uso de dados documentados através da WOCAT:

Sim

2.1 Descrição curta da tecnologia

Definição da tecnologia:

Applying organic residuals on denuded ares

2.2 Descrição detalhada da tecnologia

Descrição:

The concerning rangelands are severely degraded and parts of them have even lost their topsoil layer entirely. Nevertheless, in many cases some remnant vegetation patches are still in place and can serve as seed banks during the restoration process. In order to stabilize the surface (i.e. to reduce the effects of freeze-thaw processes), provide nutrients to the system, increase water availability and facilitate the distribution of native species within the degraded areas, tractors are used to spread manure or hay over the denuded areas. All implementations are based on the methods and tools used in ecological restoration, aiming at re-activating environmental and ecological processes and increasing the resilience of the ecosystems undergoing restoration. Denuded patches, preferably close to the remaining vegetation "islands" are covered with organic matter in order to stabilize the surface, facilitate seed production and seed dispersal and provide safe sites for seed germination.

Purpose of the Technology: The purpose with the technology is to halt further land degradation and facilitate natural succession within the area undergoing restoration. In the long-term, it should substantially reduce wind and water erosion. It should also lead to increased biodiversity, enhanced water availability and accelerated carbon sequestration (in soil and vegetation). The overall restoration task is to increase the resilience of the ecosystems against natural hazards; such as volcanic activities.

Establishment / maintenance activities and inputs: In the year after the areas are treated, they are commonly treated with a low portion of inorganic fertilizer to add easily dissolvable nutrients to the seeds and seedling that have already germinated within the area. The fertilizing treatment is repeated approx biannually for 4-8 years on the average.

Natural / human environment: In the long-term, the technology is expected to substantially increase biomass production, re-build soil qualities, accelerate carbon sequestration and secure water availability within the rangeland and the adjacent ecosystems. The areas still grazed are expected to be more suitable for livestock grazing and the protected areas are expected to be of more recreational and aesthetic value. Increased vegetation cover will reduce and even halt the sand drift that still creates challenges for inhabitants in adjacent villages, on farmsteads and within the summerhouse clusters, scattered around the area. As the degraded rangeland is in the vicinity of an active volcano (Mt Hekla) the technology is also expected to increase ecosystem resilience against natural hazards like ash and pumice drift and reduce potential offsite damages caused by these materials.

2.3 Fotos da tecnologia

2.5 País/região/locais onde a tecnologia foi aplicada e que estão cobertos nesta avaliação

2.6 Data da implementação

Caso o ano exato seja desconhecido, indique a data aproximada:

• mais de 50 anos atrás (tradicional)

2.7 Introdução da tecnologia

Especifique como a tecnologia foi introduzida:

• Como parte do sistema tradicional (>50 anos)

3.1 Principal/principais finalidade(s) da tecnologia

• Reduz, previne, recupera a degradação do solo

3.2 Tipo(s) atualizado(s) de uso da terra onde a tecnologia foi aplicada

Comentários:

Major land use problems (compiler’s opinion): Vast parts of the area are heavily degraded due to unsustainable land use through the centuries in combination to harsh climate and frequent volcanic eruptions. The major land use problem are related to the fact that the concerned ecosystems collapsed long time ago and despite all restoration efforts implemented within the area for over 100 years, the systems are still highly dysfunctional. Their carrying capacity is limited and even light livestock grazing can keep further vegetation succession down. Passive restoration might take place where the livestock grazing has been excluded but in most cases some technologies are needed to "kickstart" the ecosystem and break their negative resilience against changes.

Major land use problems (land users’ perception): They are fully aware that the ecosystems are in a poor condition and restoration is needed in order to push improvements forward. They acknowledge that grazing of collapsed ecosystems can maintain the dysfunctional of the systems and hinder ecological improvements. Nevertheless, in many cases they believe the harsh climate and volcanic activities are the main contributors to land degradation - that livestock grazing and the grazing carrying capacity of the rangeland are not fundamental issues in this context.

Future (final) land use (after implementation of SLM Technology): Grazing land: Ge: Extensive grazing land

3.3 O uso do solo mudou devido à implementação da Tecnologia?

O uso do solo mudou devido à implementação da Tecnologia?

• Sim (Por favor, preencha as perguntas abaixo com relação ao uso do solo antes da implementação da Tecnologia)

3.5 Grupo de GST ao qual pertence a tecnologia

• Solo/cobertura vegetal melhorada

3.6 Medidas de GST contendo a tecnologia

Comentários:

Main measures: agronomic measures

3.7 Principais tipos de degradação da terra abordados pela tecnologia

Comentários:

Main type of degradation addressed: Wt: loss of topsoil / surface erosion, Et: loss of topsoil, Eo: offsite degradation effects, Bc: reduction of vegetation cover

Secondary types of degradation addressed: Wo: offsite degradation effects, Bq: quantity / biomass decline, Bs: quality and species composition /diversity decline, Hs: change in quantity of surface water, Hg: change in groundwater / aquifer level

3.8 Redução, prevenção ou recuperação da degradação do solo

Comentários:

Main goals: prevention of land degradation, mitigation / reduction of land degradation, rehabilitation / reclamation of denuded land

4.1 Desenho técnico da tecnologia

4.2 Informação geral em relação ao cálculo de entradas e custos

Outro/moeda nacional (especifique):

ISK

Se for relevante, indique a taxa de câmbio do USD para moeda local (por exemplo, 1 USD = 79,9 Real): 1 USD =:

112,0

4.3 Atividades de implantação

	Atividade	Periodicidade (estação do ano)
1.	Spreading organic residuals

4.4 Custos e entradas necessárias para a implantação

	Especifique a entrada	Unidade	Quantidade	Custos por unidade	Custos totais por entrada	% dos custos arcados pelos usuários da terra
Equipamento	Machine use	ha	1,0	180,0	180,0	100,0
Fertilizantes e biocidas	Compost/manure	ha	1,0	42,0	42,0
Custos totais para a implantação da tecnologia					222,0
Custos totais para o estabelecimento da Tecnologia em USD					1,98

Comentários:

Duration of establishment phase: 1 month(s)
Life span of the organic residuals: 1 year
Number of parties sharing: 232

4.7 Fatores mais importantes que afetam os custos

Descreva os fatores mais determinantes que afetam os custos:

The most determinate factors affecting the cost are: 1) the machinery needed and 2) the distance of the eroded areas from the farmsteads

5.1 Clima