FLUKS CO2 DARI TANAH ANDOSOL PADA PENGGUNAAN LAHAN KEBUN SAYUR DAN HUTAN DI KECAMATAN CISARUA KABUPATEN BOGOR

Abstract

Agricultural activities are considered as one source of greenhouse gas emissions (GHG). Researchs on GHG emission from agricultural land are mostly done on peat soils, while researchs on mineral soil are still limited. This research was aimed to find out and to compare CO2 flux from vegetable garden, forest, and bare land on Andosol, and to compare CO2 flux from peat soils with these of mineral soils. This research was carried out at tea plantation area of PT Sumber Sari Bumi Pakuan, Tugu Utara Village, Cisarua District, Bogor Regency (Puncak area). Gas samples were taken using a chamber method and CO2 measurement was done using a CO2 Analyzer. The results of CO2 flux measurement of each of the land uses on Andosol indicate that CO2 flux from vegetable garden and forest were almost similar, about 4,26 g C- CO2 m-2 d-1 and 4,28 g CO2 m-2 d-1, while that of bare land showed smaller results, about 2,01 g C- CO2 m-2 d-1. The results of analysis of soil respiration showed the same thing that is CO2 produced from soil of vegetable garden and forest is higher than that of bare land. These results are resembled by the results of the analysis of microbial populations in the soils of vegetable garden and forest that were higher than that of the bare land.

Keywords: Agricultural land, Andosol, CO2 flux