OF HOUSEHOLD ECONOMIC FACTORS ON INCOME AND SPECIES DIVERSITY OF KANDYAN
D M A H Senaratne*, N K Batagalle* and H B Kotagama**
* Agriculture Research & Development Center; ** University
Being a highly popular agricultural land use with lot of promising ecological
features, Kandyan Home Gardens (KHGs) have strong economic and social
functional relationships with the occupants. Most homegardens have been
developed out of long term efforts of household members which often extend
to multiple generations. Wide variety and adaptation found in homegardens
even within relatively small areas with approximately similar agro climatic
and physiographic conditions strongly indicate the high influence of socio
economic factors on composition and structure of homegardens. Unless vital
socio economic relationships involved with homegardens are properly understood,
achieving broad policy objectives could become a difficult task. Therefore
this study attempts to investigate some of the socio economic relationships
associated with KHGs.
Data collection has been done by conducting a survey in 3 villages in
Kandy district using a structured questionnaire. Information related to
important physical features of homegardens and socio economic aspects
of households have been gathered. Based on the gathered information two
multiple regression models have been developed to elaborate on factors
influencing the income obtained from homegardens and number of species
found in homegardens.
Results show monetary income from the homegarden has shown statistically
significant positive relationships with size of land, capital used, family
labour and number of species. This indicates that in households with high
resource endowments homegardens tend to be more commercially productive.
Income from other sources has shown a negative relationship with the income
from homegardens. The second model shows some interesting results which
has important implications related to bio diversity of the system. Land
extent, domestically used subsistent outputs and number of family members
has shown positive relationships with number of species found in the homegardens.
Capital used has shown a significant negative relationship. This indicates
that as the resource management is shifted towards more capital intensive
forms from subsistent forms it can lead to reduce the bio diversity of
the system. This is a very important implication which should be considered
seriously in any policy related to use as homegardens.
We can conclude that as homegarden management orients more towards intensive
forms it has the potential to increase the income. However this could
lead to deterioration of the species profile of the system. Therefore,
the challenge for policy is to find a balance between ecological sustainability
and economic viability of the system.
Department of Forestry and Environmental Science,
of Sri Jayewardenepura,Sri Lanka. 1999. All rights reserved.