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Homegarden Agroforestry for
Socio-Economic, Ecological and
Environmental Sustainability in
Sri Lanka
DKNG Pushpakumara, B....
Source: Pushpakumara et al. (2012)
Area of Homegardens in Sri Lanka in
Relation to Forests, Agriculture and Other
Landuses
Sri Lanka
Population pressure
Forest - protected
Land is limiting factor
Land degradation
Watershed issues
Food and nutrit...
13%
6%
10%
41%21%
9%
Homegardens
Rubber plantations
Coconut plantations
Forest plantations
Imported
Unrecorded
Sources of ...
Household income
Biodiversity conservation
Weerahewa et al. 2012; 2013
Diversity of the Plant Species (Numbers)
2300
Endemic
species
20201632Families
34262451Genera
36
(23%)
28
(18%)
25
(16%)
6...
Species Number of trees recorded from
homegardens
Coconut 38,616,649 ??
Jakfruit 10,437,142
Mahogany 6,410,248
Mango 5,607...
Food and nutritional security
Sustainable Management of Landscape
and Provision of Environmental Services
District
Area
(sq
km)
Population
density
(per sq km)
Forest
cover (%)
Homegarden
cover
(%)*
Tree
canopy
cover
(%)
Ampara 4...
Carbon Content in Different TROF
systems of Nuwara Eliya District
TROF system
Extent Weight at 20%
M.C.
Carbon content
(kg...
Homegardens are climate resilient
Now….
Priority in national development programs
(Divi Neguma – Livelihood improvement
programs).
Largely based on annual v...
Not fully identified…
Fragmentation issue…..
Domestication of high value trees……
Perceptions and convictions……
Innovative management strategies…...
Policy brief….
Thank you for your
attention..........
Session 2.2 homegarden agroforestry for sustainability in sri lanka
Session 2.2 homegarden agroforestry for sustainability in sri lanka
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Session 2.2 homegarden agroforestry for sustainability in sri lanka

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Transcript of "Session 2.2 homegarden agroforestry for sustainability in sri lanka"

  1. 1. Homegarden Agroforestry for Socio-Economic, Ecological and Environmental Sustainability in Sri Lanka DKNG Pushpakumara, B. Marambe, J. Weerahewa, G.L.L.P. Silva, K.T. Premakantha and B.V.R. Punyawardena Faculty of Agriculture, University of Peradeniya, Sri Lanka, Forest Department, Battaramulla, Sri Lanka Department of Agriculture, Peradeniya, Sri Lanka
  2. 2. Source: Pushpakumara et al. (2012) Area of Homegardens in Sri Lanka in Relation to Forests, Agriculture and Other Landuses
  3. 3. Sri Lanka Population pressure Forest - protected Land is limiting factor Land degradation Watershed issues Food and nutritional security Poor farmers – food & nutrition problem
  4. 4. 13% 6% 10% 41%21% 9% Homegardens Rubber plantations Coconut plantations Forest plantations Imported Unrecorded Sources of sawlogs supply in Sri Lanka Source: FSMP, 1995; Pushpakumara et al. 2012 7% 27%4% 19% 3% 14% 7% 19% Rubber w ood Homegarden Forest plantation Coconut Processing residues Other Natural forest Crop land Sources of fuelwood supply in Sri Lanka Sawlog and Fuelwood Production
  5. 5. Household income Biodiversity conservation Weerahewa et al. 2012; 2013
  6. 6. Diversity of the Plant Species (Numbers) 2300 Endemic species 20201632Families 34262451Genera 36 (23%) 28 (18%) 25 (16%) 65 (42%) Species No specific use identified MedicinalTimberFood Marambe et al., 2012; Weerahewa et al. 2012; 2013
  7. 7. Species Number of trees recorded from homegardens Coconut 38,616,649 ?? Jakfruit 10,437,142 Mahogany 6,410,248 Mango 5,607,688 Teak 3,293,609 Rambutan 1,177,920 Avacardo 986,161 Woodapple 948,752 Del 910,473 Delum 197,941 Ebony 174 005 Beli 165,718 Palmyrah 127,340 Nelli 116,728 Mango 52,103 Source: Ariyadasa (2002) Tree Domestication Major source of fruit production and fruit tree genetic diversity Circa situm conservation
  8. 8. Food and nutritional security
  9. 9. Sustainable Management of Landscape and Provision of Environmental Services
  10. 10. District Area (sq km) Population density (per sq km) Forest cover (%) Homegarden cover (%)* Tree canopy cover (%) Ampara 4,318 143 37.5 4.1 41.6 Colombo 656 3,631 2.8 13.1 15.9 Gampaha 1,386 1,523 0.3 25.2 25.5 Hambantota 2,579 210 20.5 15.1 35.6 Kandy 1,906 704 17.0 30.4 47.4 Kegalle 1,693 468 9.5 23.2 32.7 Nuwara Eliya 1,720 423 24.5 5.3 29.8 Rathnapura 3,255 325 20.0 15.8 35.8 Vavunia 1,967 74 51.0 10.1 61.1 Sri Lanka 65,610 314 23.5 14.3 40.8 Statistics on land area, population density, forest cover and homegarden area of selected districts of Sri Lanka. Pushpakumara et al., 2012
  11. 11. Carbon Content in Different TROF systems of Nuwara Eliya District TROF system Extent Weight at 20% M.C. Carbon content (kg) Homegarden 27,440 1,655,528,757 711,875,713.2 Tea based TROF system 79,182 989,007,345 441,097,275.7 Urban agricultural based TROF system 3,885 77,924,882 34,754,497.42 Grassland 4,289 41,101,104 18,331,092.44 Annual crop based TROF system 13,154 4,383,012 1,954,823.516 Total 127950 2,767,945,100 1,208,013,402
  12. 12. Homegardens are climate resilient
  13. 13. Now…. Priority in national development programs (Divi Neguma – Livelihood improvement programs). Largely based on annual vegetables and few perennials….
  14. 14. Not fully identified…
  15. 15. Fragmentation issue….. Domestication of high value trees…… Perceptions and convictions…… Innovative management strategies….. Dynamism of tree component…… Multi-disciplinary system approach…
  16. 16. Policy brief….
  17. 17. Thank you for your attention..........
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