Rural Biogas Development- One Digester with Three Facilities [Chine]

  • Création :
  • Mise à jour :
  • Compilateur :
  • Rédacteur :
  • Examinateur :

approaches_2658 - Chine

État complet : 58%

1. Informations générales

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

Personne(s) ressource(s) clé(s)

Spécialiste GDT:

Wang Yaolin


GEF/OP12 Gansu Project Implementation Office (Gansu Sand Control Institute)


Nom du ou des institutions qui ont facilité la documentation/ l'évaluation de l'Approche (si pertinent)
GEF/OP12 Gansu Project (GEF/OP12 Gansu Project) - Chine
Nom du ou des institutions qui ont facilité la documentation/ l'évaluation de l'Approche (si pertinent)
CDE Centre for Development and Environment (CDE Centre for Development and Environment) - Suisse

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

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


2. Description de l'Approche de GDT

2.1 Courte description de l'Approche

A campaign of “One digester with three facilities”, launched by the government and promoted by demonstration, is going on Jingyuan County of Gansu Province. This campaign is aimed at improving biogas digester and three facilities used in the kitchen, animal house and toilet.

2.2 Description détaillée de l'Approche

Description détaillée de l'Approche:

The demonstration project is located in Jingyuan County of Gansu Province. Historically, Jingyuan is a naturally harsh region, where shortage of "three materials” (materials for fuel, fodder and building) are felt. Furthermore, ecological degradation has led to poverty of the rural community. In the 1970s the government encouraged people to use biogas digesters, and in the 1980s the government called people to use firewood saving stoves and solar cookers, which to a certain extent alleviated the rural shortage of fuel material. However, due to financial and technical constraints the biogas application had a very limited progress.
In May 1979 the National Biogas Application Conference was convened. After this conference a Biogas Office was set up in Jingyuan County dealing with the promotion of the biogas technology. During the period of the Five-year Plan the entire Gansu Province implemented a pilot village program entitled “Ecological Homestead and Enriching People”, sponsored by the Ministry of Agriculture, in addition to the National Programme of Conversion of Farmland to Forest and of the Program of Poverty Reduction. Some farmers spontaneously made investment to build biogas digesters. Since 2003 the government has launched a series of programs, including a program of rural biogas digesters (financed by treasure bonds) and large/medium-sized biogas engineering program (financed by Ministry of Agriculture). Powered by these programs, more households were using biogas, and the scope of use was expanded to cover integrated uses in addition to lighting, cooking and boiling etc. In 2003, Jingyuan county had 121 certified biogas workers, and over 2100 sets of biogas digesters, including 1200 sets with advanced technology (lateral hydraulic automatic rotational-flowed digester). Four pilot villages were arranged. At present total of 6000 households are using biogas in the county.
The extension of biogas digesters is made mainly through project demonstration under the leadership of the county energy office. The extension approaches are: training, village meetings, on-the-spot explanations, handouts distribution. Trainees are the rural biogas technicians, administration staff as well as the farmers. Generally speaking, the village meeting is convened firstly for farmers to discuss and decide who should be financed by the project for biogas digester construction. In course of the publicity and construction, the county energy office staffs are responsible for answering the inquiries. The project or government will supply the building materials while farmers are responsible for transportation and labor input. The households which use 'one digester with three facilities' have an advanced digester with features of simple structure, reasonable layout and convenient operation. It also features more automatic operation, high gas production, easy cleaning and environment friendly.

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



Région/ Etat/ Province:


Autres spécifications du lieu :

Jingyuan County

2.8 Principaux objectifs de l'Approche

Aims are to establish effective extension mechanism, raise community participation capability, alleviate soil erosion, provide energy to rural areas to meet daily needs; and improve rural living environment
The SLM Approach addressed the following problems: community lacks funds for biogas digester construction; community lacks biogas knowledge; community lacks effective organization; households lack fuel; farmers are extremely poor; arid climate, low rainfall, low land productivity;

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

disponibilité/ accès aux ressources et services financiers
  • entrave

Short of Found: Current technological application is supported by the project. Those areas without a project have difficulties adopting it because of high initial investment.

Treatment through the SLM Approach: Seek more social support and governmental special finances.

connaissances sur la GDT, accès aux supports techniques
  • entrave

Natural factor: Low temperature in late fall, early spring and winter has an influence on biogas output.
Treatment through the SLM Approach: To keep biogas digester warm by combining animal breeding in warm houses.

  • entrave

Low knowledge level: Some farmers feel difficulties to learn and accept new technology, and can not manage and operate the biogas facilities correctly.
Treatment through the SLM Approach: Increase training intensity

3. Participation et rôles des parties prenantes impliquées dans l'Approche

3.1 Parties prenantes impliquées dans l'Approche et rôles

  • exploitants locaux des terres / communautés locales
  • gouvernement national (planificateurs, décideurs)
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 passive The departments at levels of Province, prefecture and county conduct surveys, convene meetings, carry out publicity to make villagers aware of the purpose of project.
planification soutien extérieur Villagers have consultations with design staff/technicians.
mise en œuvre auto-mobilisation Farmers contribute labor and participate in the construction work.
suivi/ évaluation soutien extérieur Related departments explain the purpose of monitoring to the villagers and encourage them to participate in monitoring recording and reporting.
Research soutien extérieur Join In the digester construction and analysis of socio-economic effect during process of introduction and research of new technologies.

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

Les décisions concernant la sélection de la(des) Technologie(s) ont elles été prises:
  • Land users and the government

Decisions on the method of implementing the SLM Technology were made by Government and farmers

4. Soutien technique, renforcement des capacités et gestion des connaissances

4.1 Renforcement des capacités/ formation

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


Formats de la formation:
  • zones de démonstration
Thèmes abordés:

The contents of training are: biogas digester construction, operation, maintenance and the use of dregs and residue liquid. The training forms are: demonstrations, meetings, wall newspaper, household visits and brochure distribution. Training is conducted mainly by county-level technicians. The training plays an extremely important role in technological application and improved knowledge of farmer

4.4 Suivi et évaluation

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



bio-physical aspects were monitored by government through observations; indicators: Field vegetation cover, ratio change of coal consumption and firewood consumption, the temperature
technical aspects were monitored through observations; indicators: Gas production is obtained by observations and tests.

4.5 Recherche

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


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

Research work has been mainly conducted at national and provincial levels, with little participation by farmers.

5. Financement et soutien matériel externe

5.1 Budget annuel de la composante GDT de l'Approche

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

Approach costs were met by the following donors: local community / land user(s) (Households): 23.0%; other (Project finance): 77.0%

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


Building material such as cement, brick, plastic pipe etc., are wholly or partially financed by the project while working tools such as shovels, tractor and pickaxe is supplied by farmer households.

5.4 Crédits

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


6. Analyses d'impact et conclusions

6.1 Impacts de l'Approche

At the beginning, the extension was done by efforts of government cadres to mobilizing the farmers. Now it is the government-project- farmer integrated extension pattern. Most farmers now have strong wishes to build biogas digesters and the biogas digester have evolved from single energy use to the

Did other land users / projects adopt the Approach?
  • Non
  • Oui, un peu
  • Oui, modérément
  • Oui, beaucoup

The technology has been adopted in the county as well as the surrounding areas.

6.4 Points forts/ avantages de l'Approche

Points forts/ avantages/ possibilités du point de vue du compilateur ou d'une autre personne ressource clé
Governmental extension combined with farmer spontaneous adoption of the technology (How to sustain/ enhance this strength: reinforce propaganda, training )
Increase capability and knowledge level of farmers (How to sustain/ enhance this strength: access more projects to cover more biogas users)
Add income (How to sustain/ enhance this strength: reinforce integrated development )
Promote organic agriculture (How to sustain/ enhance this strength: further develop the uses of residues)

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

Faiblesses/ inconvénients/ risques du point de vue du compilateur ou d'une autre personne ressource clé Comment peuvent-ils être surmontés?
Relatively complicated technology reinforce training and propaganda
The inputs are higher obtain more external support

7. Références et liens

7.1 Méthodes/ sources d'information

  • visites de terrain, enquêtes sur le terrain
  • interviews/entretiens avec les exploitants des terres