CHANGES IN VEGETATION STRUCTURE SHIFTING CULTIVATION SYSTEM by DAYAK PITAP, SOUTH KALIMANTAN

• Main Author: Ulfah, Sri
• Format: Theses
• Language: Indonesia
• Subjects: Ilmu hayati ; Biologi
• Online Access: https://digilib.itb.ac.id/gdl/view/36352
• Institution: Institut Teknologi Bandung

Forests are important things in life, because humans utilize natural resources contained therein.Natural resources is called ecosystem services.One of the many ecosystem services are used by humans is the regulation services in agricultural systems.One of the farming systems that utilize ecosystem services is shifting cultivation.Shifting cultivation is generally carried out in the forest area located in the hills.Pitap Dayak tribe is one of the tribes living in the region Meratus, Borneo, which performs shifting cultivation system.Shifting cultivation is an agricultural system that utilizes the natural succession to improve farmland.Natural succession that this will change the structure and composition of vegetation affected by several environmental conditions.This study aims to assess the development of the structure and composition of vegetation as well as the conditions of the environmental factors during the fallow period.This study uses chronosequence approach to study the succession of shifting cultivation.The location study performed on four fallow site that has been abandoned for two, four, six and eight years as well as natural forests by using methods squares are arranged to form a belt transect measuring 20 x 100 m2 which involves a series of several terraced plots. Vegetation parameters measured for all forms of life (trees, shrubs and herbaceous).Among the species found, some are present in almost all the tread fallow, namely Archidendron pauciflorum and Hevea brasiliensis (tree); Calamus paspalanthus, Korthalsia nets, Korthalsia robusta and Schizostachyum blumei (shrubs); and Cyperus rotundus, Hedyotis corymbosa, Nephrolepis hirsutula and Phyllanthus urinary (herb).In line with the increasing age of the fallow footprint, diversity of forms of life index value of trees and stand biomass showed an upward trend.Level of similarity between the tread patterns show the community that tends to be close similarity of natural forest communities with age fallow.The potential regeneration of tree species vegetation component of each tread show different patterns.In the aspect of microclimates, air temperature decreases with age fallow.Factors edafik not seen a clear pattern in line with increased age fallow for C, N and P soil, while soil K levels were significantly higher in the youngest fallow footprint compared with starfish older.