Assessing Agrobiodiversity in Home Garden Ecosystems of some Regions in Khorasan Razavi Province

Document Type : Scientific - Research

Authors

• Mehdi Nassiri Mahallati ¹
• Alireza Koocheki ²
• Arash Ghaleh Golab Behbahani ³
• Javad Shabahng ³

¹ Department of Agrotechnology, Faculty of Agriculture, Ferdowsi University of Mashhad Mashhad, Iran.

² Department of Agrotechnology, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran

³ Department of Agrotechnology, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran.

10.22067/jag.v1i1.51345

Abstract

Introduction  
Characteristics such as the high levels of agrobiodiversity, the efficiency of the nutrition, and also variety in ecological and socio-economic functions have altered home gardens into the appropriate model for achieving a sustainable agricultural system. So far, fewer studies in relation to these features have been done in home gardens of dry and semi-arid regions. Protection of diversity with a particular emphasis on agricultural biodiversity is fundamental to sustainable development in food production and hence food security. Expansion of industrial agriculture in the form of monoculture for the purpose of maximizing the yield with the aid of high-yielding varieties and intensive use of inputs has hampered the ecological functions of food production systems worldwide. This problem can be overcome by the application of a wide array of ecological agriculture practices, of which food production in home gardens is only one of them. This environmentally sound practice is an old system of land use almost in all parts of the world with a wide range of dimensions. A combination of different plants, from herbs to trees and in cases with poultry and other low-weight animals, provides a complex sustainable system of food production. This type of subsistence food production is based on local knowledge and normally is part of the residential area or, to the, low input. Food produced in this system is consumed locally, and women are the main element in both production and marketing. Exchanges of experience and knowledge, seed, and also tools, and labors are very common in neighboring communities. The purpose of the present study was to investigate the agrobiodiversity of home gardens in an arid environment of Khorasan Razavi Province.
Materials and Methods
Data collection for this study was based on the fieldwork with the distribution of questioners. For this purpose, 17 villages from 3 highly populated counties of Mashhad/ Quchan and Nyshabour were selected, and 164 questioners were distributed with a face-to-face procedure. After the collection and validation of data, only 136 questionnaires were selected, data were extracted, and finally, an analysis was carried out. Afterward, the Shannon biodiversity index, Simpson index, and species richness were calculated. The amount of carbon sequestered was also calculated by an equation referred to in the literature. For the calculation of biodiversity indices, the area under cultivation of each species was used. Based on the available previous studies, seven basic functions for home gardens were assigned.
Results and Discussion
Results showed the highest Shannon index of species diversity equal to 1.88 for the county of Neishabour; however, the highest functional diversity was found in Quchan. More the 79 percent of changes in the Shannon index are caused by changes in species richness. Stepwise regression analysis revealed that changes in species richness, home area, and household population were the factors that caused 84 percent of changes in functional diversity. Home gardens in these three counties sequester 8.1 tons of carbon dioxide per hectare, and this amount showed a decreasing trend where the distance from the vehicle roads was increased.
Conclusion
It was revealed that with taking distance from the main roads, the amount of carbon dioxide (kg per m²) decreased by tree species.
Acknowledgments
The authors acknowledge the financial support of this project (grant number 2/19719) by the Vice President for Research and Technology, Ferdowsi University of Mashhad, Iran.

Keywords

• Carbon sequestration
• Conservation
• Shannon index
• Simpson index
• Sustainable development

20.1001.1.20087713.1401.14.1.1.7

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References

Agrawal, A., 1995. Dismantling the divide between indigenous and scientific knowledge. Development and Change 26: 413–439.

Albuquerque, U.P., Andrade, L.H.C., and Caballero, J., 2005. Structure and floristic of homegardens in northeastern Brazil. Journal of Arid Environments 62: 491–506.

Alcorn, J.B., 1992. Indigenous agroforestry systems in the Latin American tropics. Pages 203-218 in: M.A. Altieri and S.B. Hecht. Agroecology and small farm development.CRC Press Boston, 336p.

Ali, A.M.S., 2005. Homegardens in smallholder farming systems: Examples from Bangladesh. Human Ecology 33(2): 245–270.

Brookfield, H., and Stocking, M., 1999. Agro diversity: definition, description and design. Journal of Global Environmental Change 9: 77-80.

Barthel, S., Christian, I., 2012. Urban gardens, agriculture, and water management: Sources of resilience for long-term food security in cities. Department of History, Stockholm, SE-10691 Stockholm, Sweden. (In Persian with English Summary).

Blanckaert, I., Swennen, R. L., Flores, M. P., López, R. R., amd Saade, R. L., 2004. Floristic composition, plant uses and management practices in homegardens of San Rafael Coxcatlán, Valley of Tehuacán-Cuicatlán, Mexico. Journal of Arid Environments: 57(2), 179-202.

Christanty, L., 1990. Homegardens in tropical Asia, with special reference to Indonesia. In Tropical Home Gardens (Eds. Landauer, K. and Brazil, M.), United Nations University Press, Tokyo, Japan, pp. 9–20.

Clarke, W.C., and Thaman, R.R., 1993. Agro Forestry in the Pacific Island: Systems for Sustainability. United Nations Press, New York.

Coomes, O.T., and Ban, N., 2004. Cultivated plant diversity in home gardens of an Amazonian peasant village, Northeastern Peru. Economic Botany 58(3): 420-434.

Duelli, P., 1997. Biodiversity evaluation in agricultural landscape: an approach at two different scales. Journal of Agriculture, Ecosystems and Environment 62: 81-91.

Del Angel-Pérez, A.L., and Mendoza, M.A., 2004. Totonac homegardens and natural resources in Veracruz, Mexico. Agriculture and Human Values 21: 329–346.

Ellen, R., Parkes, P., and Bicker, A., 2000. Indigenous Environmental Knowledge and its Transformations: Critical Anthropological Perspectives. Harwood, Amsterdam.

Eric, G.L., Erin, B., Gillian, H., Jim, S., Stan, B., Jim, H., Diane, L., and Haughland, D.L., 2009. Indices for monitoring biodiversity change: Are some more effective than others? Ecological Indicators 9: 432–444.

Guillaumet, J. L., Grenand, P., Bahri, S., Grenand, F., Lourd, M., & Dos Santos, A. A., 1990. Les jardins-vergers familiaux d Aamazonie central: un example d utilization de iespace. Turialba 40: 63-81.

Gómez-Pompa, A., 1996. Three levels of conservation by local people. F. Di Castri and T. Younѐs, Eds., Biodiversity, Science and Development: Towards a New Partnership. CAB International, Wallingford, UK. Pages 347-356.

Behbahani, A. G., Khoshbakht, K., Davari, A., Tabrizi, L., Veisi, H., and Alipour, A., 2012. Assessing the effect of socio- economic factors on agro biodiversity in homegardens of Jajrood and Jamabrood in Tehran province (Iran). Advance in Environmental Biology 6(5): 1708-1715.

Jose, D., and Shanmugaratnam, N., 1993. Traditional homegardens of Kerala: A sustainable human ecosystem. Agroforestry System 24: 203–213.

Kumar, M., 2011. India. Species richness and aboveground carbon stocks in the homegardens of central Kerala, India. Collage of Forestry. Kerala Agricultural University. KAU P.O, Thrissur, Kevala680656, pp. 430-440.

Kumar, B.M., and Nair, P.K.R., 2004. The enigma of tropical home gardens. Agro forestry Systems. Kluwe Academic Publisher, 61: 135-152.

Kehlenbeck, K., and Maass, B.L., 2004. Crop diversity and classification of homegardens in central Sulawesi, Indonesia. Agro Forestry Systems 63: 53–62.

Lamont, S. R., Eshbaugh, W. H., & Greenberg, A. M., 1999. Species composition, diversity, and use of homegardens among three Amazonian villages. Economic Botany 53(3): 126-312.

Lerach, N., 2000. Home gardens, cultivated plant diversity, and exchange of planting material in the Pacaya-Samiria National Reserve area, northeastern Peru. Unpublished M.A. thesis, McGill University, Montreal.

López-Alzina, D., 2007. Gendered production spaces and crop varietal selection: Case study in Yucatán, Mexico. Singapore. Journal of Tropical Geography 28: 21–38.

Margalef, R.D., 1958. Information theory in ecology. General Systems 36–71.

Mariel, A., Stoen. R., and Camarge, R., 2008. Home gardens sustans crop diversity and improve farm resilience in Candelaria Loxicha, Oaxaca, Mexico.Human Ecology. 10.1007/s10745-008-9197-y.

Moreno-Black, G., Somansang, P., and Thamathawan, S., 1996. Cultivating continuity and creating change: Woman’s home garden practices in northeastern Thailand. Agriculture and Human Values 13: 3–11.

Méndez, V.E., Lok, R., and Somarraba, E., 2001. Interdisciplinary analysis of homegardens in Nicaragua: Micro-Zonation, plant use and socioeconomic importance. Agro Forestry Systems 51: 85–96.

Nassiri, M.A, Koocheki, Mazaheri D., 2003. Diversity of crop species in IRAN. Desert 10:1.

Nazarea, V., 2006. Local knowledge and memory in biodiversity conservation. Annual Review in Anthropology 35: 317–335.

Oliver T., Coomes and Natalie B., 2004. Cultivated Plant Species Diversity in Home Gardens of an Amazonian Peasant Village in Northeastern Peru. Pp. 420-434.

Orѐ Balbin, I., and Samaniego D.L., 1996. Huertas domesticas como sistema tradicional de cultivo en Moena Cano, Rio Amazonas, Iquitos, Peru. Folia Amazonica 8(1): 91-110.

Perales, H., Brush, S.B., and Qualset, C.O. 2003. Dynamic management of maize landraces in Central Mexico. Economic Botany 57(1): 21–34.

Rugalema, G.H., O’Kting Ati’, A., and Johnsen, F.H., 1994. The Homegarden agro forestry system of Bukoba district, North- Western Tanzania. farming system analysis. Agro forestry Systems 26: 205–214.

Simpson, E.H., 1949. Measurement of diversity. Nature 163: 688.

Smith, N.H., Fik, T.J., Alvim P., de T., Falesi I.C., and Serrao E.A.S., 1995. Agroforestry developments and potential in the Brazilian Amazon. Land Degradation and Rehabilitation 6: 251-263.

Stephan, B., Isendahl, C., 2012. Urban gardens, agriculture, and water management: Sources of resilience for long-term food security in cities. Department of History, Stockholm, SE-10691 Stockholm, Sweden. Sthapit, B., R. Gautam and Eyzaguirre P., 2004. The value of home gardens to small farmers. In: Gautam, R., B. Sthapit and P. Shrestha. Home Gardens in Nepal (8-17). [Proceedings of a National Workshop], 6-7 August 2004, Pokhara, Nepal.

Subedi, A., Chaudhary, P., Baniya, B.K., Rana, R.B., Tiwari, R.K., Rijal, D.K., and Sthapit, B.R., 2001. Who maintains genetic diversity and how: Implications for on-farm conservation and utilization? Paper presented at the International Symposium on Managing Biodiversity in Agricultural Ecosystem, Montreal, 8-10 Nov 2001.

Tapasi. D., and Kummar D., 2005. Inventorying plant biodiversity in homegardens: A case study in Barak Valley Assam, North East India. Department of Ecology and Environmental Science, Assam University, Silchar 788011.

Torquebiau, E., 1992. Are tropical agro forestry homegardens sustainable? Agric., Ecosystem. Environ. 41: 189–207.

Tapia, Mario E., 2000. Mountain agrobiodiversity in Peru: Seed fairs, seed banks, and mountain-to-mountain exchange. Mountain Research and Development 20(3): 220-225.

Watson, J.W., and Eyzaguirre, P.B., 2002. Home gardens and in situ preservation of plant genetic resources in farming systems. Proceeding of International Home Gardens Workshop. 17-19 July 2001, Witzenhausen, Federal Republic of Germany.

Watson, Michael J., 2000. Crop Exchange in Amazonia: Understanding the Dynamics of Planting Material Transfer in Traditional Upland Communities in the Peruvian Amazon. Unpublished B.A. Honours Thesis. Geography Department, McGill University, Montreal.

Wezel, A., and Bender, S., 2003. Plant species diversity of homegardens of Cuba and its significance for household food supply. Agro forestry Systems 57: 39–49.