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

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

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

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

1.5 Referência ao(s) questionário(s) sobre abordagens GST (documentado(s) usando WOCAT)

Farmer initiative within enabling environment [Suíça]

Initiative and innovation of land users, stimulated by government's technical and financial support.

• Compilador/a: Nicole Guedel
• 13/01/2009 00:00

2.1 Descrição curta da tecnologia

Definição da tecnologia:

Contour small bench terraces with stabilising permanent green cover in steep sloping vineyards.

2.2 Descrição detalhada da tecnologia

Descrição:

Description: The vineyards of the region are all, for micro-climatc reasons, more or less sloped. The technology is applied on steep to very steep slopes. It ist characterised by two elements: 1) small bench terrace with one contour-oriented vine row per terrace and 2) an initially sown all-year green cover of the soil surface for stabilisation reasons (green cover is also used between vine rows which are oriented up and down the slope, eg not terraced, see SWI01).
Purpose: Main purpose of the terrace construction is a possible mechanisation on steep to very steep slopes. Direct purpose of the green cover is the stabilisation of the small terraces, indirect but important purpose is the prevention of soil degradation, especially soil erosion by water and - secondary - to protect soil surface from compactation when using mechanised equipment.
Establishment: The terraces are constructed by external specialists and heavy machinery (walking excavator, type "Menzi Muck") and are considered to serve for a whole life cycle of the vine (20-40 years). The green cover is sown since stabilisation is needed from the very beginning on. The duration of the establishment is 3 years. Because of insufficient root length of young vines agronomic and vegetative measures differ from the "normal" measures: For reasons of competition the space around the freshly planted vines is kept free from vegetation with a hoe.
Maintenance: the topsoil is ripped from time to time with fuel driven machine (spade machine tracked by tractor). Cover vegetation is either cut or chopped and serves as mulching . Herbicides are applied around the vines. Minimum tillage and cutting / mulching may additionally serve to mobilise nutrients and to increase organic matter content or to eliminate competition of cover vegetation.
Natural environment: the vineyards are mainly placed on mountain or hill slopes, below 600 m a.s.l., annual rainfall is around 1000 mm with at least one erosive storm per year. The geological underground is limy, locally layered by Molasse (type of conglomerate). Soil properties are strongly influenced by anthropogenic activities (viticulture). Main degradation problem without green cover is erosion by water.
Human environment / land use: the region has a strong wine growing tradition (several centuries), belongs to the important Swiss wine growing regions and is not very densly populated.
First experiments with green cover in Switzerland were done in the 70ies around Zürich on contour small bench terraces, in the region of the lake of Biel contour small bench terraces with green cover started to be implemented in the 80ies

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:

• menos de 10 anos atrás (recentemente)

2.7 Introdução da tecnologia

Especifique como a tecnologia foi introduzida:

• através de projetos/intervenções externas

Comentários (tipos de projeto, etc.):

The development of contour small bench terraces with green cover in vineyards was (also on the international level) essentially promoted and supported by the Federal Research Station for fruit-growing, viticulture and horticulture in Wädenswil (Canton of Zürich) and Changins (Canton of Vaud)

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

Terra de cultivo

• Cultura de árvores e arbustos

Cultivo de árvores e arbustos - Especificar culturas:

• uvas

Número de estações de cultivo por ano:

• 1

Especifique:

Longest growing period in days: 210Longest growing period from month to month: Apr - Oct

Comentários:

Major land use problems (compiler’s opinion): The main problem was decreasing soil fertility, especially throug soil erosion by water with negative off-site effects like sand- /sediment deposition and contamination of groundwater by nutrients. It became a serious problem since the 60ies when the fact became visible that the traditional labour-intensive cultivation system, which was strongly dependent on external inputss, could no longer be sustained within an industrialised agriculture system.

Type of cropping system and major crops comments: a vine plantation is established for a period of 20-40 years (lifetime of a vine). Some farmers make one year of fallow between the destruction of the old and the establishment of a new plantation.

3.4 Abastecimento de água

Abastecimento de água para a terra na qual a tecnologia é aplicada:

• Misto de precipitação natural-irrigado

Comentários:

Water supply: rainfed, mixed rainfed - irrigated

3.5 Grupo de GST ao qual pertence a tecnologia

• Solo/cobertura vegetal melhorada
• Medidas de curva de nível

• Stabilisation of terraces

3.6 Medidas de GST contendo a tecnologia

3.7 Principais tipos de degradação da terra abordados pela tecnologia

Erosão do solo pela água

• Wt: Perda do solo superficial/erosão de superfície
• Wo: efeitos de degradação externa

Deteriorização química do solo

• Cn: declínio de fertilidade e teor reduzido de matéria orgânica (não causado pela erosão)
• Cp: poluição do solo

Deteriorização física do solo

• Pc: Compactação
• Pk: quebra e ressecamento

Comentários:

Main type of degradation addressed: Wt: loss of topsoil / surface erosion, Wo: offsite degradation effects

Secondary types of degradation addressed: Cn: fertility decline and reduced organic matter content, Cp: soil pollution, Pc: compaction, Pk: sealing and crusting

Main causes of degradation: other human induced causes (specify) (agricultural causes: fast changing basic conditions of viticulture in the last 100 years), education, access to knowledge and support services (lack of knowledge), fast changing basic conditions of viticulture (economy, laws)

3.8 Redução, prevenção ou recuperação da degradação do solo

Especifique o objetivo da tecnologia em relação a degradação da terra:

• Reduzir a degradação do solo

Comentários:

Main goals: mitigation / reduction of land degradation

4.1 Desenho técnico da tecnologia

Especificações técnicas (relacionada ao desenho técnico):

Technical drawing of small contour bench terraces with permanent green cover. A = width of terrace, B = tractor area, C = distance between vine plant and terrace edge, D = gradient of terrace riser, E = distance of vine rows, F = orignal slope, G = zone of application of herbicides (10-40 cm).

Date: June 2003

Technical knowledge required for field staff / advisors: high

Technical knowledge required for land users: moderate

Main technical functions: control of dispersed runoff: retain / trap, reduction of slope angle, reduction of slope length, improvement of ground cover

Secondary technical functions: control of raindrop splash, increase of surface roughness, increase in organic matter, increase of infiltration, increase / maintain water stored in soil, improvement of soil structure, increase in soil fertility

Mulching
Material/ species: cut or chopped cover vegetation
Remarks: dispersed over the whole surface; if possible cutting/chopping (alternating)

Agronomic measure: removing less vegetation cover
Material/ species: cut or chopped cover vegetation, vine leaves and cut branches
Remarks: between vine rows

Manure / compost / residues
Material/ species: compost
Remarks: only sporadically (every 5-10 year or less)

Mineral (inorganic) fertilizers
Material/ species: nitrogen
Quantity/ density: 0-50 kg/ha
Remarks: normally rather little nitrogen

Agronomic measure: mineral (inorganic) fertilizers
Material/ species: potassium
Quantity/ density: 0-20 kg/ha

Agronomic measure: mineral (inorganic) fertilizers
Material/ species: magnesium
Quantity/ density: 0-25 kg/ha

Agronomic measure: mineral (inorganic) fertilizers
Material/ species: phosphorus
Quantity/ density: 0-20 kg/ha

Breaking compacted subsoil
Remarks: only on terrace, if possible only every second row/terrace (alternating)

Scattered / dispersed
Vegetative material: G : grass

Grass species: different grass species, taraxacum, veronica, legumes, calystegia, geranium...

Terrace: bench level
Vertical interval between structures (m): 1.3 m
Spacing between structures (m): 2.5 m

Construction material (earth): only earth of parcel

Slope (which determines the spacing indicated above): 60%

Lateral gradient along the structure: 0%

Vegetation is used for stabilisation of structures.

Autor:

Nicole Güdel, Berne, Switzerland

4.3 Atividades de implantação

4.4 Custos e entradas necessárias para a implantação

Comentários:

Duration of establishment phase: 36 month(s)

4.5 Atividades recorrentes/manutenção

4.6 Custos e entradas necessárias pata a manutenção/atividades recorrentes (por ano)

Comentários:

Machinery/ tools: e.g.: walking excavator, hoe, mower with tracked vehicle or portable motor scythe, spading machine with tracked vehicle; knapsack sprayer or biocide t

4.7 Fatores mais importantes que afetam os custos

Descreva os fatores mais determinantes que afetam os custos:

(manual) labour

5.1 Clima

5.2 Topografia

Comentários e outras especificações sobre a topografia:

Altitudinal zone: 501-1000 m a.s.l. (For climatic reasons vines grow hardly above 600 m a.s.l. in Switzerland)
Landforms: Hill slopes (most of them southeastward sloping hills (part of the Jura mountain range))
Slopes on average: Steep (31-60%) (Vines are planted on different slopes. But contour small bench terraces are applied at steep slopes)

5.3 Solos

Caso disponível anexe a descrição completa do solo ou especifique as informações disponíveis, p. ex. tipo de solo, PH/acidez do solo, nitrogênio, capacidade de troca catiônica, salinidade, etc.

Soil depth: From shallow to very deep (Soil depth is very irregular, at some places limestone rocks appear at the surface, at other places soil can be quite deep.But if soil is very shallow for the whole parcel contour small bench terraces)
Soil fertilits is medium (Vines are normally grown on rather marginal spots. Compared to the general productivity these soils have a medium fertility. (If measured at the vine itself, soil fertility is sufficient/high))
Topsoil organic matter is medium (loamy,silty) (without / before SWC (green cover))
Soil drainage/infiltration is mostly good, at some spots medium (depressions; when high percentage of clay)
Soil water storage capacity is medium (without / before SWC (green cover)), high (without / before SWC (green cover)) or low (without / before SWC (green cover). Depressions; when high percentage of clay)

5.6 Características dos usuários da terra que utilizam a tecnologia

Indique outras características relevantes dos usuários da terra:

Population density: 200-500 persons/km2
Annual population growth: 0.5% - 1%
Off-farm income specification: This is representative for the full time winegrowers. The majority of winegrowers do winegrowing beside a regular off-farm job as a hobby. Nearly all winegrowers have implementeted the SWC technology. Probably there is no difference in hobby-winegrowers and full-time-winegrowers concernring implementation of the SWC technology.
Level of mechanization: Manual labour (most of the work in the vineyard is done by hand (especially harvest)) or mechanised (some of the activities are carried out with fuel driven equipment. But mechanisation is moderate since big and heavy machines cannot been applied in these vineyards).
Market orientation is commercial/market (in the region of the lake of Biel the majority of grapes are pressed to wine an then and sold directly from the farm's wine cellar)

5.7 Área média de terrenos utilizados pelos usuários de terrenos que aplicam a Tecnologia

5.8 Propriedade de terra, direitos de uso da terra e de uso da água

Propriedade da terra:

• Indivíduo, intitulado

Direitos do uso da terra:

• Indivíduo

6.1 Impactos no local mostrados pela tecnologia

Impactos socioeconômicos

Produção

Renda e custos

Outros impactos socioeconômicos

Impactos socioculturais

Impactos ecológicos

Solo

Biodiversidade: vegetação, animais

Clima e redução de riscos de desastre

Outros impactos ecológicos

6.2 Impactos externos mostrados pela tecnologia

6.4 Análise do custo-benefício

Como os benefícios se comparam aos custos de implantação (do ponto de vista dos usuários da terra)?

Como os benefícios se comparam aos custos recorrentes/de manutenção(do ponto de vista dos usuários da terra)?

6.5 Adoção da tecnologia

De todos aqueles que adotaram a Tecnologia, quantos o fizeram espontaneamente, ou seja, sem receber nenhum incentivo/ pagamento material?

• 91-100%

Comentários:

10% of land user families have adopted the Technology with external material support

Comments on acceptance with external material support: estimates

90% of land user families have adopted the Technology without any external material support

Comments on spontaneous adoption: estimates

There is a strong trend towards spontaneous adoption of the Technology

Comments on adoption trend: Contour small bench terraces with green cover are seen as good opportunity for viticulture in steep slopes. Adoption is done mainly spontaneous

7.1 Métodos/fontes de informação