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

Nom du projet qui a facilité la documentation/ l'évaluation de la Technologie (si pertinent)

Soil protection and rehabilitation for food security (ProSo(i)l)

Nom du ou des institutions qui ont facilité la documentation/ l'évaluation de la Technologie (si pertinent)

Deutsche Gesellschaft für Internationale Zusammenarbeit (GIZ) GmbH (GIZ) - Allemagne

Nom du ou des institutions qui ont facilité la documentation/ l'évaluation de la Technologie (si pertinent)

Alliance Bioversity and International Center for Tropical Agriculture (Alliance Bioversity-CIAT) - Kenya

Nom du ou des institutions qui ont facilité la documentation/ l'évaluation de la Technologie (si pertinent)

Ecociate Consultants (Ecociate Consultants) - Inde

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:

Oui

1.4 Déclaration sur la durabilité de la Technologie décrite

Est-ce que la Technologie décrite ici pose problème par rapport à la dégradation des terres, de telle sorte qu'elle ne peut pas être déclarée comme étant une technologie de gestion durable des terres?

Non

Commentaires:

The technology discusses one of the sustainable land management practices that rehabilitate soil health by eradicating invasive species of Lantana Camara and using it to prepare biochar.

2.1 Courte description de la Technologie

Définition de la Technologie:

Lantana Camara, an invasive species in India, negatively impacts biodiversity and agriculture. Biochar made from its biomass can help manage the species effectively. Traditionally farmers produce biochar in soil pit kilns. Another low-cost portable kiln unit of biochar preparation is a viable option for rainfed areas, designed to work on the direct up-draft principle with bottom ignition and circular vents for uniform heat transfer.

2.2 Description détaillée de la Technologie

Description:

Lantana Camara was introduced into India as an ornamental plant in 1809 by the British in Calcutta Botanical Garden. Lantana Camara negatively impacts biodiversity and native biota, disrupting the succession cycle, altering the structure and floral composition of native communities, and causing problems in agricultural lands in various regions of India. Its dense thickets outcompete native pastures, block the movement of grazers, and can cause poisoning. Its allelopathic activities also affect the growth of other species in its proximity. One of the measures to manage invasive species is by turning it into biochar.

Biochar is the charred biomass produced by slow pyrolysis in which organic material is heated under controlled temperatures (300-500°C) without oxygen. Lantana Camara is an ideal biomass for biochar production due to its high diversity and wide distribution. In addition to protecting ecosystems, invasive plant-derived biochar has potential applications in environmental remediation and soil amendment due to its unique structure, composition, and adsorption properties.

In the Mandla district of Madhya Pradesh, low-cost technologies for producing biochar are being practised. A low-cost portable kiln unit has been used in the Mandla District to cater to the needs of small and marginal farmers. One unit costs approximately Rs. 7000-12000 depending upon the design and location, including a metal drum, vent-making charges, and side fittings. The kiln is designed to work on the direct up-draft principle with bottom ignition. It is a vertical, single-barrel structure with a perforated base. The kiln has a square-shaped loading hole at the top, which can be closed at the end of conversion with a metal lid with a handle. The kiln has circular vents, a staggered arrangement to avoid rows, and a central vent to hold a wooden pole. Under open atmospheric conditions, the vents at the kiln base hasten hot gas movement through the bio-residues for uniform heat transfer by primary air movement. The kiln's top hole vents the released water vapours and hot gases. A strip of metal is welded around at 3/4th height of the kiln, to which two metal rods are welded on opposite sides to serve as lifting jacks. Dry Lantana Camara feedstock is placed inside the kiln unit, and a fire is lit at the bottom. Through a pyrolysis process, the organic compounds present in the biomass decompose at a specific temperature in an oxygen-limited environment.

Prior to use, the stalks/twigs of lantana are manually cut into appropriate pieces 15-19 cm long and 0.9-1.0 cm in diameter using a commonly used axe in order to achieve better packing density. Dry residues are a prerequisite to hasten satisfactory and quicker conversion. The dried residues of lantana are placed in the unit and are burned from the bottom in an oxygen-limited environment. Generally, the burning process takes 6-8 hours through a slow pyrolysis process. Once complete, the kiln is quenched with soil and left to cool for 3-4 hours. This simple and affordable biochar production method can help manage invasive plant species and benefit agriculture, the environment, and energy. The conversion ratio from biomass to biochar in the case of Lantana is around 20-25%. Farmers have reported of burning around 100 kg of dried Lantana biomass to get ~20 kg of biochar in one operation of the unit. The application rate of biochar varies from crop to crop and the type of soil and other characters. In studied project farmers do apply 20 kg of biochar mixed with 20 kg of cow dung and 20 kg of cow urine in an area of around 1 acre.

The burned biomass of Lantana after the process looks like the coal sticks, these sticks are pulverised through a pulveriser to make a powdered material for application in the field. The biochar is mixed with an equal quantity of cow dung and cow urine before the application. Some farmers also mix the native soils in biochar to get better results.

2.3 Photos de la Technologie

2.4 Vidéos de la Technologie

2.5 Pays/ région/ lieux où la Technologie a été appliquée et qui sont couverts par cette évaluation

2.6 Date de mise en œuvre de la Technologie

Indiquez l'année de mise en œuvre:

2020

2.7 Introduction de la Technologie

Spécifiez comment la Technologie a été introduite: :

• au cours d'expérimentations / de recherches
• par le biais de projets/ d'interventions extérieures

Commentaires (type de projet, etc.) :

FES has worked effectively with the community to eradicate Lantana Camera from private and common land and use it for the preparation of biochar

3.1 Principal(aux) objectif(s) de la Technologie

• améliorer la production
• réduire, prévenir, restaurer les terres dégradées
• préserver l'écosystème
• conserver/ améliorer la biodiversité
• créer un impact économique positif

3.2 Type(s) actuel(s) d'utilisation des terres, là où la Technologie est appliquée

Les divers types d'utilisation des terres au sein du même unité de terrain: :

Oui

Précisez l'utilisation mixte des terres (cultures/ pâturages/ arbres):

• Agroforesterie

Commentaires:

Lantana camara is a highly invasive plant species that can quickly spread and take over private and common land. The plant can spread rapidly by seeds or vegetative propagation, and it can grow in various environments. This makes it difficult to control once it has established itself in an area. Lantana Camara outcompetes native plant species, reduces biodiversity and alters ecosystem processes. Additionally, the plant can be toxic to livestock and wildlife, and its dense growth can increase the wildfire risk.

3.3 Est-ce que l’utilisation des terres a changé en raison de la mise en œuvre de la Technologie ?

Est-ce que l’utilisation des terres a changé en raison de la mise en œuvre de la Technologie ?

• Non (Passez à la question 3.4)

3.4 Approvisionnement en eau

Approvisionnement en eau des terres sur lesquelles est appliquée la Technologie:

• pluvial

Commentaires:

Approximately 9% of the net area sown has some source of irrigation, rest is rainfed (Source, CGWB, 2013). Significantly used sources of irrigation are canals, dug well, and tanks/ponds.

3.5 Groupe de GDT auquel appartient la Technologie

• gestion des forêts naturelles et semi-naturelles
• agroforesterie
• Amélioration de la couverture végétale/ du sol

3.6 Mesures de GDT constituant la Technologie

3.7 Principaux types de dégradation des terres traités par la Technologie

3.8 Prévention, réduction de la dégradation ou réhabilitation des terres dégradées

Spécifiez l'objectif de la Technologie au regard de la dégradation des terres:

• prévenir la dégradation des terres
• réduire la dégradation des terres

Commentaires:

The application of biochar improves soil health by improving the soil's organic carbon and enhancing the soil's water-holding capacity

4.1 Dessin technique de la Technologie

4.2 Informations générales sur le calcul des intrants et des coûts

Spécifiez la manière dont les coûts et les intrants ont été calculés:

• par superficie de la Technologie

autre/ monnaie nationale (précisez):

INR

Indiquez le taux de change des USD en devise locale, le cas échéant (p.ex. 1 USD = 79.9 réal brésilien): 1 USD = :

80,0

4.3 Activités de mise en place/ d'établissement

	Activité	Calendrier des activités (saisonnier)
1.	Pyrolysis of Biomass (Lantana camara) in Biochar kiln unit	October-November and June-July (Before the winter and monsoon cropping seasons).
2.	Pulverisation of coal sticks received after the Pyrolysis process	October-November/June-July (Immediately after the Pyrolysis process )

Commentaires:

The availability of moisture in the soil makes the uprooting/removal of Lantana camara easy, that's the reason behind its removal in the post-monsoon season. Biochar is produced by the farmers just before the cropping seasons. Monsoon (Known as Kharif) and Winter (Known as Rabi) are the most dominant cropping seasons in India.

The establishment cost of a biochar production Kiln is low, as it is specially designed for small and marginal farmers. The unit once purchased can be used for 8-10 years with a very low maintenance cost.

4.4 Coûts et intrants nécessaires à la mise en place

	Spécifiez les intrants	Unité	Quantité	Coûts par unité	Coût total par intrant	% des coût supporté par les exploitants des terres
Equipements	Biochar Kiln	Number	1,0	7000,0	7000,0	25,0
Equipements	Pulverizer unit	Number	1,0	20000,0	20000,0	25,0
Coût total de mise en place de la Technologie					27000,0
Coût total de mise en place de la Technologie en dollars américains (USD)					337,5

Si le coût n'est pas pris en charge à 100% par l'exploitant des terres, indiquez qui a financé le coût restant:

The remaining cost is being covered by the project funds routed through community organisations

Commentaires:

The design of the biochar kiln is simple, there is hardly any cost involved in maintaining the unit. Labour cost is required generally for the removal of Lantana Camara and for the preparation of the biochar. Exact costs cannot be indicated at this time.

4.5 Activités d'entretien/ récurrentes

	Activité	Calendrier/ fréquence
1.	Preparation of Biochar	Before the sowing of Rabi and Kharif season (Month of October/November and June/July)
2.	Application of Biochar in the field	During the crops seasons;

Commentaires:

No maintainance cost is involved in preparing biochar from Lantana Camara, as the design of the kiln is straightforward and cost-effective. Preventing the regrowth of Lantana Camara in the areas where it is removed is the only monitoring factor involved at regular intervals.

4.6 Coûts et intrants nécessaires aux activités d'entretien/ récurrentes (par an)

	Spécifiez les intrants	Unité	Quantité	Coûts par unité	Coût total par intrant	% des coût supporté par les exploitants des terres
Main d'œuvre	Labor cost for removal of lantana	ha	1,0	5000,0	5000,0	25,0
Main d'œuvre	Preparation of biochar	Person-day	2,0	200,0	400,0	100,0
Main d'œuvre	Application of biochar in the field	Person-day	0,5	200,0	100,0	100,0
Main d'œuvre	Transportation of lantana	Trip	1,0	200,0	200,0	100,0
Engrais et biocides	Cow dung	kg	20,0	5,0	100,0	100,0
Engrais et biocides	Cow urine	kg	20,0	5,0	100,0	100,0
Coût total d'entretien de la Technologie					5900,0
Coût total d'entretien de la Technologie en dollars américains (USD)					73,75

Commentaires:

Recurring cost includes removing the lantana and preparing biochar, and cow dung and cow urine must be mixed with biochar before application in the field. In most cases, family members are engaged as labour.

4.7 Facteurs les plus importants affectant les coûts

Décrivez les facteurs les plus importants affectant les coûts :

Cost of the biochar kiln

5.1 Climat

5.2 Topographie

Indiquez si la Technologie est spécifiquement appliquée dans des:

• non pertinent

Commentaires et précisions supplémentaires sur la topographie:

The project area is hilly and forested (Satpura hill range) and highly undulating with narrow strips of cultivated plains in the valley portion of the river. The plateau is in the northern part, formed by basalt and east-west trending hill in the southern region. The highest elevation is 934 m amsl in the northern part, and the lowest elevation is around 400 m amsl in the northwestern part of the area. Protected forest areas cover a large majority of the site in the district as part of the Kanha National Park.

5.3 Sols

Si disponible, joignez une description complète du sol ou précisez les informations disponibles, par ex., type de sol, pH/ acidité du sol, capacité d'échange cationique, azote, salinité, etc.

Soil Testing Parameter status (Average) 2017-20 for the project areas is as follows. This data is based on the soil samples tested by the FES in its soil labs from the project villages.

Soil pH:- 5.906548628; EC (electrical conductivity):- 0.122993577; Soil Organic Carbon:- 0.83%; Nitrogen. :- 293.3696598; Phosphorus:- 25.77762582; Potassium (K):- 139.6696636; Sulphur (S):-18.93457993; Zinc (Zn):- 0.955246706; Boron (Bn):- 0.490850376

5.4 Disponibilité et qualité de l'eau

La salinité de l'eau est-elle un problème? :

Non

La zone est-elle inondée?

Non

Commentaires et précisions supplémentaires sur la qualité et la quantité d'eau:

The groundwater status is within the safe limits as per the reports by the Government of Madhya Pradesh. People use water from rivers, streams, and traditional small wells for domestic purposes. In the absence of good vegetative cover, the rainwater washes off the fertile topsoil from the farmlands making the land barren and resulting in the siltation of ponds and other water bodies. Further, a heavy infestation of invasive species such as Lantana Camara compounds the degradation.
The studied block Bichhiya is in a better position in terms of stage of groundwater development with 17%, while the average of the district is 7%. The stage of groundwater development refers to the % of groundwater being used for various purposes from the available groundwater in that area e.g. net annual groundwater availability in Bichhiya block is 9087 ham (hectare meters) while the existing annual ground water draft for all usage is 1523 ham, making it a 17% groundwater development stage.
Source: http://cgwb.gov.in/District_Profile/MP/Mandla.pdf

5.5 Biodiversité

Commentaires et précisions supplémentaires sur la biodiversité:

The area is surrounded by Kanha National Park and Phen Wildlife Sanctuary, with a good presence of forest area. World famous Kanha Tiger Reserve is situated in the Mandla district. Kanha is famous for Tiger and Barasingha. Kanha has numerous species of insects, butterflies, reptiles, fishes, and other lesser life forms. Important mammals, birds, reptiles, crustaceans, amphibians, insects, mollusks, and fishes are found in Kanha National Park. The faunal diversity of the district represents 32 wild animals, 63 birds, 4 fishes, and 9 reptile species, respectively. Regarding floral diversity, out of 1006 plant species available in the district, 162 are tree species, followed by 71 species of shrubs, 681 species of herbs, 51 species of climbers, 39 species of grasses, and 2 species of parasites. Mandla is richer in herbaceous species than other adjoining districts like Jabalpur and Seoni.
Source:- Documentation of Biodiversity Status in Mandla District of Madhya Pradesh https://mpsbb.mp.gov.in/completedProject/MB.pdf

5.6 Caractéristiques des exploitants des terres appliquant la Technologie

Indiquez toute autre caractéristique pertinente des exploitants des terres:

The large majority of the user belong to the tribal community, including some households from an ethnic community called Baiga.
https://en.wikipedia.org/wiki/Baiga_tribe

5.7 Superficie moyenne des terres utilisées par les exploitants des terres appliquant la Technologie

5.8 Propriété foncière, droits d’utilisation des terres et de l'eau

Propriété foncière:

• communauté/ village
• individu, avec titre de propriété

Droits d’utilisation des terres:

• individuel

Droits d’utilisation de l’eau:

• communautaire (organisé)
• individuel

Est-ce que les droits d'utilisation des terres sont fondés sur un système juridique traditionnel?

Oui

Précisez:

The concerned authorities have issued landowners the land certificates.

5.9 Accès aux services et aux infrastructures

6.1 Impacts sur site que la Technologie a montrés

Impacts socio-économiques

Production

Disponibilité et qualité de l'eau

Impacts socioculturels

Impacts écologiques

Biodiversité: végétale, animale

Réduction des risques de catastrophe et des risques climatiques

6.2 Impacts hors site que la Technologie a montrés

6.4 Analyse coûts-bénéfices

Quels sont les bénéfices comparativement aux coûts de mise en place (du point de vue des exploitants des terres)?

Quels sont les bénéfices comparativement aux coûts d'entretien récurrents (du point de vue des exploitants des terres)?

Commentaires:

The cost of biochar production is almost negligible for farmers as it is made using local resources, while the benefits are multifold in terms of crop production, quality, and soil health improvement.

6.5 Adoption de la Technologie

• 1-10%

De tous ceux qui ont adopté la Technologie, combien d'entre eux l'ont fait spontanément, à savoir sans recevoir aucune incitation matérielle, ou aucune rémunération? :

• 0-10%

Commentaires:

A number of farmers adopted the technology without any financial support from the project

6.6 Adaptation

La Technologie a-t-elle été récemment modifiée pour s'adapter à l'évolution des conditions?

Oui

autre (précisez):

Technology

Spécifiez l'adaptation de la Technologie (conception, matériaux/ espèces, etc.):

Several farmers adopted biochar production using a traditional method of digging a pit and preparing the biochar.

6.7 Points forts/ avantages/ possibilités de la Technologie

Points forts/ avantages/ possibilités du point de vue de l'exploitant des terres
Communities have found biochar as an essential input to meet the nutrient requirement of their soil. They have improved the quality of their farm produce by applying biochar.
Preparation of Biochar using Lantana Camara has emerged as an excellent use for the invasive species, which otherwise was not having any use and was growing like fire in the area
Improved production of the farm produce

Points forts/ avantages/ possibilités du point de vue du compilateur ou d'une autre personne ressource clé
Biochar is an excellent input for improving soil organic carbon. It can lead to healthy soil with an improved capacity of the soil to sequester carbon.
Over the years, soils have degraded to a great extent in the project geography. Biochar can reverse this process.
Farmers can grow short-duration crops and fodder for their animals in a rainfed area, with improved soil moisture. This will help improve farmers' income.

6.8 Faiblesses/ inconvénients/ risques de la Technologie et moyens de les surmonter

Faiblesses/ inconvénients/ risques du point de vue de l’exploitant des terres	Comment peuvent-ils être surmontés?
The capacity of existing biochar kiln units is limited, and farmers have to wait for their turn	More units can be mobilized with community-based engagement and support from externally funded projects
Hard work and a long process involved uprooting lantana, drying, transportation, burning, and application	Communities need handholding and training about its importance and more technological advances

Faiblesses/ inconvénients/ risques du point de vue du compilateur ou d'une autre personne ressource clé	Comment peuvent-ils être surmontés?
In the long run, the easy accessibility of Lantana may be a concern if it is implemented on a large scale. The availability of other biomass is very much limited.	An assessment of the availability of Lantana and its annual requirement for biochar preparation can be done
Biochar has long-term benefits, while communities look for short-term solutions	Handholding the communities along with linking them with carbon credit-related projects may be a good option to keep farmers motivated
Regular application of biochar over the years	Regular communication with farmers about the positive outcome aligned with other financial incentives linked to soil organic carbon improvement

7.1 Méthodes/ sources d'information

7.2 Références des publications disponibles

Titre, auteur, année, ISBN:

Invasive plants as potential sustainable feedstocks for biochar production and multiple applications: A review, Qianwei Feng a, Bing Wang a b c, Miao Chen a b c, Pan Wu a b c, Xinqing Lee d, Ying Xing e

Disponible à partir d'où? Coût?

https://doi.org/10.1016/j.resconrec.2020.105204

Titre, auteur, année, ISBN:

Biochar for Soil Health Enhancement and Crop Productivity Improvement, Awtar Singh1*, A.P. Singh2, V. Singh1, Arijit Barman1, Sagar Vibhute1 and R.S. Tolia

Disponible à partir d'où? Coût?

Innovative Farming, 1(4): 137-140, 2016

Titre, auteur, année, ISBN:

A review of Lantana camara studies in India, Neena Priyanka*,**, P. K. Joshi*

Disponible à partir d'où? Coût?

International Journal of Scientific and Research Publications, Volume 3, Issue 10, October 2013 ISSN 2250-3153

Titre, auteur, année, ISBN:

Annual Progress Report on Promotion of Biochar in Mandla, developed by FES for the year 2021-22

Disponible à partir d'où? Coût?

Internal document of FES, shared as part of the project report to GIZ. This document can be obtained from the GIZ office, India

7.3 Liens vers les informations pertinentes en ligne

Titre/ description:

District at a glance by Central Ground Water Board

URL:

http://cgwb.gov.in/District_Profile/MP/Mandla.pdf

Titre/ description:

Low cost Kiln for Biochar Production

URL:

http://www.nicra-icar.in/nicrarevised/images/Home/NICRA%20Technical%20Brochure%20Portable%20Kiln.pdf

Titre/ description:

Baiga Tribes

URL:

https://en.wikipedia.org/wiki/Baiga_tribe

Titre/ description:

Biochar on soil properties and crop performance

URL:

https://www.indiascienceandtechnology.gov.in/research/biochar-soil-properties-and-crop-performance

Titre/ description:

Video by FES on Biochar production (Hindi)

URL:

https://www.youtube.com/watch?v=MPj4_I5BFRE

Titre/ description:

A review of Lantana camara studies in India

URL:

https://www.ijsrp.org/research-paper-1013/ijsrp-p2207.pdf

Titre/ description:

Low Cost Portable Kiln for Biochar Production

URL:

http://www.nicra-icar.in/nicrarevised/images/Home/NICRA%20Technical%20Brochure%20Portable%20Kiln.pdf