Breve descripción de la práctica óptima

High Vertical Living Sand Barrier is a protective barrier set in the wind and sand stricken areas. The barrier with certain height and penetrability is made up of growing plants suitable for dry and sandy conditions to alleviate the wind and sand drifting speed through the rows of plants, and finally piling up the drifting sand. It is an effective sand fixation approach to protect infrastructure from being ravaged.

Lugar

Jiuquan City of Gansu Province, China|

Breve descripción del entorno natural en el lugar especificado

Soil texture is coarse sandy and soil erodibility is very high.
Arid.
Plain/plateaus

Condiciones socioeconómicas imperantes de los habitantes del lugar o las proximidades

Railway department (in state owned form), land around collective owned by the farmers|
Local income level is low. Per Capita Annual Net Income is CNY 8158 in Rural areas of Jiuquan City in 2011.
Farming.

¿En base de qué criterios o indicadores (no relacionados con la Estrategia) se ha considerado la práctica propuesta y la tecnología correspondiente como ‘óptima’?

Annual rainfall is over 150mm, and in the areas of railway and highway line.
It is highly effective, suitable to natural conditions. Annual rainfall is over 150mm.

Principales problemas que trata la práctica óptima

1. Protect farmland, road and other facilities from harms of sand storms.
2. Guarantee traffic operation, increase income, improve environment condition, raise people’s living standard.
3. Raise community’s capability in ecological protection.
4. Raise community participation.
1. Protect farmland, road and other facilities from harms of sand storms.
2. Guarantee traffic operation, increase income, improve environment condition, raise people’s living standard.
3. Raise community’s capability in ecological protection.
4. Raise community participation.

Explique los problemas específicos de la degradación de las tierras que trata la práctica óptima.

The drifting sand burying the railway and wind erosion was addressed.

Especifique los objetivos de la práctica óptima.

1. Control drift sand burying road and facilities.
2. Reduce wind speed and improve production condition.
3. Raise vegetation cover and improve production condition.
1. Control drift sand burying road and facilities.
2. Reduce wind speed and improve production condition.
3. Raise vegetation cover and improve production condition.
1. Control drift sand burying road and facilities.
2. Reduce wind speed and improve production condition.
3. Raise vegetation cover and improve production condition.

Breve descripción de las principales actividades, por objetivo

1. Select cutting of C. klementzil and one year seedlings of Haloxylon ammodendron for planting, with plant space 10 cm of more.
2. Check the plant survival condition in the spring following the establishment of the plant barrier, conduct replanting to the unplanted of dead. 3. The living sand barrier built should be looked after by specialized people to avoid damages of domestic animals.|
1. 2-4 belts of windbreak are proper for the seriously affected areas and 1-2 belts are suitable for lightly affected places.
2. The first belt of windbreak should be planted perpendicular to the wind direction about 200m to the rail tracks to be protected at the windward side.
3. Further, windbreaks should be planted in 20m intervals to total 2-4 belts in parallel with the first one.
No answer provided.
1. High vertical living sand barrier is built in spring.
2. On drift sand site, draw straight line perpendicular wind direction of afforestation, at the span of about 20m.
3. Afforestation and watering.|

Breve descripción y especificaciones técnicas de la tecnología

Select suitable plant species and determine row spacing and specifications according to drift sand condition, especially drift intensity, and to form a high vertical barrier.
The first belt of windbreak should be planted perpendicular to the wind direction about 200m to the rail tracks to be protected at the windward side. Further, windbreaks should be planted in 20m intervals to total 2-4 belts in parallel with the first one. Calligonum klementzil, Haloxylon ammodendron, Salix psammophila, etc. may be planted. 25cm or longer cuttings, or one year old seedlings in 30cm are proper for the plantation of Calligonum and Salix psammophila; one year old seedlings of 30cm in length suits planting of Haloxylon ammodendron. Initial density should be kept in 10-12 tree/m.

Nombre y dirección de la institución que desarrolla la tecnología

Gansu Desert Control Research Institute|No answer provided.

¿La tecnología se desarrolló en una alianza?

Sí

enumere los asociados:

Lanzhou Railway Bureau in Gansu Province.

Especifique el marco en el que se promovió la tecnología

• Iniciativa local
• Iniciativa basada en un programa/proyecto
• Iniciativa local

¿La participación de interesados locales, incluidas las organizaciones de la sociedad civil, favoreció el desarrollo de la tecnología?

Sí

enumere los interesados participantes:

Rail workers.|Local farmers.

Detalle la función de los interesados enumerados anteriormente en cuanto a diseño, introducción, uso y mantenimiento de la tecnología, en su caso.

Rail workers were responsible for maintenance of technology. Local farmers offered labor in the use of the technology.

¿La población que habitaba en el lugar o en las proximidades participó en el desarrollo de la tecnología?

No

Describa los impactos in situ (los dos principales impactos por categoría).

Fix drift sand and reduce ground wind speed.
Add vegetation cover of the sand area, reduce sand striking to crops around the project area.|
Raise farmers’ awareness of sand fixation.
Improve local industrial and agricultural production conditions.
Improvement of local capacity on sand dune fixation.
Encourage local participation of ecological project.
Prevent sand burying road and other facilities.
Improvment of local developemnt base, access to markt by rail way,local imcome increase

Describa los dos principales impactos fuera del lugar (por ejemplo, que no se registran en el lugar, pero sí en las zonas próximas).

Ensure the normal operation of the entire Lanzhou-Xinjiang Railway line service.
Form a technical extension mechanism by integrating research and extension.

Impacto en la diversidad biológica y el cambio climático

Justifíquelo:

Activities and measures taken in the best practices/technology, fixed drift sand and added vegetation cover of the sand areas, so the best practice had a positive impact on biodiversity conservation and climate change. |

¿Se ha elaborado un análisis costo-beneficio?

¿Se ha elaborado un análisis costo-beneficio? :

Sí

¿La tecnología se difundió o introdujo en otros lugares?

¿La tecnología se difundió o introdujo en otros lugares? :

Sí

¿Dónde? :

The sand areas in the Lanzhou-Xinjiang railway line.

¿Puede identificar las tres principales condiciones para el éxito de la práctica óptima/tecnología presentada?

Local farmers participated in the use of the technology.
Choice of the technology adapted to local natural and socio-economic conditions.
Researcher-Enterprise Cooperation mode of technology development and promotion.

Replicabilidad

¿En su opinión, la práctica óptima/la tecnología que ha propuesto se puede reproducir en cualquier otro lugar con un cierto nivel de adaptación?

Sí

¿A qué nivel?

• Local
• Subnacional

En relación con los recursos humanos

Lack of effective organization of the human resources.|Participating communities and individuals are limited.|The individual capacity of some participants is limited.

En relación con los aspectos técnicos

Farmers lack the ability of the application and promotion of the technology.