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)

International Centre for Research in Agroforestry (ICRAF) - Quênia

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

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

Sim

1.4 Declaração de sustentabilidade da tecnologia descrita

A tecnologia descrita aqui é problemática em relação a degradação da terra de forma que não pode ser declarada uma tecnologia de gestão sustentável de terra?

Não

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

2.1 Descrição curta da tecnologia

Definição da tecnologia:

Windbreaks of poplar trees (Populus nigra pyramidalis) are a major agroforestry system in irrigated agriculture across Central Asia. Such windbreaks reduce the overall water consumption of irrigated agriculture by 10-20% and increase farm income by 10-15%.

2.2 Descrição detalhada da tecnologia

Descrição:

Windbreaks of trees are a major agroforestry system across Central Asia. The SLM technology presented here concentrates on windbreaks, chiefly of poplar trees (Populus nigra var. pyramidalis), within irrigated agriculture. These windbreaks of poplars have a long tradition as an agroforestry system in irrigated agriculture in the river basins of south and southeastern Kazakhstan, Kyrgyzstan, Tajikistan, Turkmenistan, and Uzbekistan. In Kazakhstan and northern parts of Kyrgyzstan, poplars are partly replaced by Elm (Ulmus minor) windbreaks.
After those five countries had become independent, a large share of the windbreaks was cut down primarily for fuelwood and secondarily for timber, as the energy supply system had broken down in the course of the disintegration of the Soviet Union. Such windbreaks reduce the overall water consumption of irrigated agriculture by 10-20% compared to open field conditions, depending on crops and tree spacing (Thevs et al., 2019: doi:10.3390/land8110167). The trees serve as an additional source of income, chiefly from sustainable harvest of the trees for timber. Windbreaks also help to increase crop yields. In total, farm income is increased by 10-15% over the rotation period of the trees (Thevs and Aliev, 2021: https://doi.org/10.1007/s10457-021-00617-7). The rotation period of poplars is between 12 and 20 years, depending on the climatic conditions, e.g. poplars in the Ferghana Valles reach DBH (diametre at breast height) values of 22-27 cm and tree heights of 18 m after 13 years.
In this recent assessment, it was found that windbreaks of single tree rows with distances between trees of 1 m had the best effects on water saving and increasing farm income. The most suitable spacing between windbreaks was found to be around 200 m.
Windbreaks are perceived differently by land users depending on the region and knowledge (Ruppert et al., 2020: doi:10.3390/su12031093). For example, land users in the Ferghana Valley perceived windbreaks positively and were planting them primarily with the aim to have wood resources in the near future. In contrast, land users in the northern part of Kyrgyzstan were afraid firstly that windbreaks shaded their crops, consumed space, and competed for water and nutrients, and secondly that planting windbreaks may cause conflicts with neighbours due to those negative connotations. Farmers with larger field plots were more open towards them.
Windbreaks are planted with 2-year-old poplar saplings, which are locally available. The preferred place to plant is along irrigation ditches or other existing field boundaries. If windbreaks are planted along irrigation ditches, they simply tap water from the moist soil or elevated groundwater adjacent to those ditches. Otherwise, the trees need to be irrigated like the crops. As furrow irrigation is the dominant irrigation practice throughout Central Asia, poplars can be integrated without further adjustments in the field of irrigation. Alongside irrigation ditches poplars can withstand high water levels in those ditches as they occur during irrigation periods. If farmers switch to drip irrigation, and irrigation ditches are no longer present, the trees will need to be supplied with a dripline as well. The locally available poplar cultivars do not need additional fertilizer, but profit from the fertilizer applied to the crop. Only if high yielding modern cultivars were to be used, additional fertilizer application to the trees would be needed to unfold their full potential.

2.3 Fotos da tecnologia

2.4 Vídeos 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:

• 10-50 anos atrás

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

• Melhora a produção
• Adaptar a mudanças climáticas/extremos e seus impactos
• Criar impacto econômico benéfico

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

Uso do solo misturado dentro da mesma unidade de terra:

Sim

Especificar o uso misto da terra (culturas/ pastoreio/ árvores):

• Agrofloresta

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

O uso do solo mudou devido à implementação da Tecnologia?

• Não (Continuar com a pergunta 3.4)

Uso do solo misturado dentro da mesma unidade de terra:

Sim

Especificar o uso misto da terra (culturas/ pastoreio/ árvores):

• Agrofloresta

3.4 Abastecimento de água

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

• Irrigação completa

Comentários:

As the spatial distribution stretches over large parts of Central Asia, some locations where windbreaks are planted are rainfed and irrigated, but most parts need full irrigation.

3.5 Grupo de GST ao qual pertence a tecnologia

• Agrofloresta
• Quebra-vento/cerca de árvores

3.6 Medidas de GST contendo a tecnologia

3.7 Principais tipos de degradação da terra abordados pela tecnologia

Comentários:

The main effect of windbreaks in the assessed areas is mainly reducing water consumption, and less wind erosion. Poplars could help to lower groundwater levels and thus contribute to combat salinization. But that did not play a role in the areas specifically assessed.

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

4.1 Desenho técnico da tecnologia

4.2 Informação geral em relação ao cálculo de entradas e custos

Especifique como custos e entradas foram calculados:

• por área de tecnologia

Outro/moeda nacional (especifique):

KGS

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

68,87

4.3 Atividades de implantação

	Atividade	Periodicidade (estação do ano)
1.	Tree planting	March (first year)
2.	Maintenance of trees	April to September (first and second year)
3.	Harvest of trees	December to February (last year of tree rotation - after 15 years)

Comentários:

These entries refer to a windbreak system of poplars to be harvested at tree age of 15 years combined with cotton. Thereby, the activities related to trees, including the harvest, are considered as activities to establish windbreaks into an agrarian landscape where irrigated agriculture is ongoing. The annual crop related activities are therefore listed under maintenance. If cotton is rotated with corn or rice, the timing of the crop-related activities is similar.

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
Mão-de-obra	Labor costs for tree planting and maintenance (first year)	man-days	3,0	750,0	2250,0	100,0
Mão-de-obra	Labor costs for tree maintenance (second year)	man-days	3,0	650,0	1950,0	100,0
Equipamento	Labor costs to harvest trees (at tree age 15 years)	man-days	3,0	70,0	210,0	100,0
Material vegetal	Poplar saplings	sapling	116,0	20,0	2320,0	100,0
Material vegetal	Transport of saplings		500,0	1,0	500,0	100,0
Custos totais para a implantação da tecnologia					7230,0
Custos totais para o estabelecimento da Tecnologia em USD					104,98

Comentários:

Costs had been retrieved for the year 2017. Costs that appear in the second year and later were discounted at a discount rate of 17.5% based on costs as of 2017.

4.5 Atividades recorrentes/manutenção

	Atividade	Periodicidade/frequência
1.	Soil preparation and sowing of annual crop (cotton)	March to April / every year
2.	Irrigation, fertilizer application and other farm operations for the crop	April to August / every year
3.	Harvest of the crop (cotton)	September to October / every year

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

	Especifique a entrada	Unidade	Quantidade	Custos por unidade	Custos totais por entrada	% dos custos arcados pelos usuários da terra
Mão-de-obra	Labor costs for soil preparation	man-days	6,81	750,0	5107,5	100,0
Mão-de-obra	Labor costs for sowing	man-days	2,5	750,0	1875,0	100,0
Equipamento	Labor costs for irrigation	man-days	23,64	750,0	17730,0	100,0
Equipamento	Labor costs to apply fertilizer and plant protection	man-days	3,34	750,0	2505,0	100,0
Equipamento	Labor costs for harvest (cotton)	man-days	32,78	554,0	18160,12	100,0
Equipamento	Machine costs (rent) for soil preparation	ha	1,0	10021,0	10021,0	100,0
Equipamento	Machine costs (rent) for sowing	ha	1,0	1316,0	1316,0	100,0
Equipamento	Machine costs for fertilizer application	ha	1,0	1200,0	1200,0	100,0
Material vegetal	Seeds	kg	50,0	101,0	5050,0	100,0
Fertilizantes e biocidas	Fertilizer	kg	375,0	19,25	7218,75	100,0
Fertilizantes e biocidas	Plant protection	ha	1,0	1517,0	1517,0	100,0
Outros	Water fee	ha	1,0	1014,0	1014,0	100,0
Custos totais para a manutenção da tecnologia					72714,37
Custos totais de manutenção da Tecnologia em USD					1055,82

4.7 Fatores mais importantes que afetam os custos

Descreva os fatores mais determinantes que afetam os custos:

Labour costs are the largest single cost item. In fact, in the cotton system a lot of labour is unpaid family labour or mutual help among neighbours. All labour was calculated in monetary terms, as the share of unpaid labour differed much between farms. This cotton tree wind break system is wide spread in the south of Kyrgyzstan. In the north of the country, tree wind breaks are combined with wheat, barley, corn, or alfalfa (lucerne). There, labour costs are lower as more machines are used (e.g. for harvest).

5.1 Clima

5.2 Topografia

Comentários e outras especificações sobre a topografia:

Tree windbreaks can be applied in a wide range of topographical situations. Though this particular entry focusses on windbreaks in irrigated agriculture so that the whole SLM technique, i.e. trees and crops, is distributed on flat land. As irrigation is tied to rivers as water sources, this SLM technique is distributed on river plains.

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.

Tree windbreaks per se are not limited to specific soil types. In the region considered here, the soils that are irrigated and therefore are sites for this SLM technique were mostly formed by riparian deposits. Those soils silty to loamy. On most of those areas, where irrigation takes place, soils are classified as Fluvisols. On few areas, the soils are classified as Gleysols.

5.4 Disponibilidade e qualidade de água

A salinidade da água é um problema?

Não

Ocorre inundação da área?

Não

Comentários e outras especificações sobre a qualidade e a quantidade da água:

Soil salinization and waterlogging do not play a role on the sites from where the information was collected for this introduction here. Though in parts of Kazakhstan, Uzbekistan, and Turkmenistan, where this windbreak SLM technology is being applied and can be expanded as well, salinization and water logging do play a role.

5.5 Biodiversidade

5.6 Características dos usuários da terra que utilizam a tecnologia

Indique outras características relevantes dos usuários da terra:

In Kyrgyzstan, the land users operate as households and can decide on their crops. Though, planting tree windbreaks does take place in agreement with neighbours. In Uzbekistan, where windbreaks are used as well, the freedom of farmers to chose their crops is limited, while tree windbreak planting partly follows governmental orders. In both countries as well as Tajikistan, labour migration is important for most rural families and remittances comprise a substantial share of the household income (off-farm income).

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:

• Arrendado
• Indivíduo

Direitos do uso da água:

• Comunitário (organizado)

Os direitos de uso da terra são baseados em um sistema jurídico tradicional?

Sim

5.9 Acesso a serviços e infraestrutura

6.1 Impactos no local mostrados pela tecnologia

Impactos socioeconômicos

Produção

Disponibilidade e qualidade de água

Renda e custos

Impactos ecológicos

Ciclo hídrico/escoamento

Solo

6.2 Impactos externos mostrados pela tecnologia

6.3 Exposição e sensibilidade da tecnologia às mudanças climáticas graduais e extremos/desastres relacionados ao clima (conforme o ponto de vista dos usuários da terra)

Outras consequências relacionadas ao clima

Outras consequências relacionadas ao clima

	Como a tecnologia lida com isso?
Glacier retreat which will result in reduced river flows and supply of water for irrigation

Comentários:

There are two major effects of climate change on the region Central Asia: 1. Glacier retreat through rising temperatures and 2. increasing rainfall during winter and partly reduced snow. Currently, the melting glaciers cause elevated river flows so that there is more water available for irrigation. But, once the glaciers have reached a new equilibrium with smaller glacier volumes, they will deliver less water so that river flows are expected to drop during the second half of this century. Then, the supply of water for irrigation will become constrained. Tree windbreaks are one option to adapt to those conditions in the future.

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

• 1-10%

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

• 91-100%

6.6 Adaptação

A tecnologia foi recentemente modificada para adaptar-se as condições variáveis?

Sim

Especifique a adaptação da tecnologia (desenho, material/espécie, etc):

During the Soviet Union times, when tree windbreaks were promoted, multi-row tree windbreaks were planted. Today, farmers prefer single tree lines, in order not to sacrifice too much crop space.

6.7 Pontos fortes/vantagens/oportunidades da tecnologia

Pontos fortes/vantagens/oportunidades na visão do usuário da terra
Tree windbreaks deliver wood resources for self consumption or to be sold on markets.
In more windy parts of Kyrgyzstan or Central Asia, land users see the advantage of reduced wind speed for crop quality and snow trap to build up soil moisture.

Pontos fortes/vantagens/oportunidades na visão do compilador ou de outra pessoa capacitada
Tree windbreaks provide additional income as they deliver wood resources.
Tree windbreaks reduce overall water consumption in irrigated agriculture.
In more windy parts of Kyrgyzstan or Central Asia, land users see the advantage of reduced wind speed for crop quality and snow trap to build up soil moisture.

6.8 Pontos fracos, desvantagens/riscos da tecnologia e formas de superá-los

Pontos fracos/desvantagens/riscos na visão do usuário da terra	Como eles podem ser superados?
Tree windbreaks shade the crop.	Capacity building and explain that this is a minor effect.
Tree windbreaks compete with the crops for nutrients and water.	Capacity building and explain that this is a minor effect.
Tree windbreaks disturb farm operations.	Capacity building and explain that this is a minor effect.
Tree windbreaks cause conflict with neighbours, as neighbours may share those negative perceptions.	Capacity building and explain that this is a minor effect and promote cooperation between neighbors to share benefits from tree wind breaks.

Pontos fracos/vantagens/riscos na visão do compilador ou de outra pessoa capacitada	Como eles podem ser superados?
Financial resources are needed to establish tree windbreaks, while the revenue from the harvest of trees only can be realized in the future.	Access to suitable finance.

7.1 Métodos/fontes de informação

7.2 Referências às publicações disponíveis

Título, autor, ano, ISBN:

Thevs N, Aliev K (2021): Agro-economy of tree windbreak systems in Kyrgyzstan, Central Asia. Agroforestry Systems. https://doi.org/10.1007/s10457-021-00617-7

Disponível de onde? Custos?

Agroforestry Systems, EUR 37.40

Título, autor, ano, ISBN:

Ruppert D, Welp M, Spies M, Thevs N (2020): Farmers’ perceptions of tree shelterbelts on agricultural land in rural Kyrgyzstan. Sustainability 12:1093. doi:10.3390/su12031093

Disponível de onde? Custos?

https://www.mdpi.com/2071-1050/12/3/1093 - open access

Título, autor, ano, ISBN:

Thevs N, Gombert AJ, Strenge E, Lleshi R, Aliev K, Emileva B (2019): Tree wind breaks in Central Asia and their effects on agricultural water consumption. Land, 8: 167-183. https://doi.org/10.3390/land8110167

Disponível de onde? Custos?

https://www.mdpi.com/2073-445X/8/11/167 - open access

Título, autor, ano, ISBN:

Strenge E, Thevs N, Aliev K, Eraaliev M, Lang P, Baibagysov A (2018): Water consumption of Populus alba trees in tree shelterbelt systems in Central Asia. Central Asian Journal for Water Resources 4, 48-62

Disponível de onde? Custos?

https://www.water-ca.org/api/v1/articles/5955-water-consumption-of-populus-alba-trees-in-tree-shelterbelt-systems-in-central-asia.pdf - open access

Título, autor, ano, ISBN:

Thevs N, Aliev K, Lleshi R (accepted): Water Productivity of Tree Wind Break Agroforestry Systems in Irrigated Agriculture – an example from Ferghana Valley, Kyrgyzstan. Trees, Forests, and People

Disponível de onde? Custos?

will be open access

7.3 Links para informações on-line relevantes

Título/ descrição:

UNECE (2019): Forest Landscape Restoration in the Caucasus and Central Asia – Challenges and Opportunities. Background paper for the Ministerial Roundtable on Forest Landscape Restoration in the Caucasus and Central Asia (21-22 June 2018, Astana, Kazakhstan)

URL:

http://www.unece.org/fileadmin/DAM/timber/publications/DP-72-flr-cca-en.pdf

Título/ descrição:

Agroforestry and Central Asia

URL:

https://www.youtube.com/watch?v=2mAfQzO7MHg

7.4 Comentários gerais

The questionaire guides the compiler through a number of questions through often standardized questions (ticking boxes). This is very helpful to avoid, possibly lengthy and not too concise descriptions. But with regard to agroforestry it should be made more clear where and how to address the trees.
In total it needs time to go through and fill in all sections, which surely is owed to the wish and need to collect information for a comprehensive description of each SLM technology. But, towards the end of projects, which have developed such technologies, the workload might be too high so that the entry into WOCAT is neglected. I guess one only can appeal to the motivation of projects or offer some sort of support for NGOs or so in need, but with very good SLM technologies to offer.