Abstract:
The pinus vegetation has been introduced to the sub mountain upper catchment area on 1953
in Sri Lanka. Sub mountain grass land was one of the largest vegetation in upcountry lands.
Changes of Physical Environment rapidly increased with the expanding deforestation of
pinus cultivation. The main research objective was identifying the impact on major physical
changing component in pinus reforestation area. It has become a major challenge for
equilibrium in upcountry area. Belihuloya, Niththamaluwa, Landuyaya and
kumburutheniwala beat were selected as the study area. Primary data collected by questioner
and semi structural interview with selected important sectors. As well as collect data by field
observation. Secondary data collected by using books, magazine and web pages. Data
analyzed by using descriptive analyzed method and maps. It was identified changes of
physical environment spread of pinus vegetation. It has caused for agriculture in this rural
area. The major findings are increasing soil erosion, changing of drainage system in this area
and it was effected to rural economic and their activities directly and indirectly. It is need to
regularly and systematic institutional plan for mitigate physical environment impact from the
pinus reforestation in Sub mountain grass land area. Introduce suitable local reforestation
trees will be a possible solution for this physical environmental changes related to pinus
reforestation area by responsible organization.
