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"The aims is to know a soil sequence based on the physiographic unit along volcanic slope and limestone area. This research is based on topographic differences as a lithological reflection. 7 samples points are determined in order to describe and evaluate morphological types of soil profile, physical and chemical properties, and environmental factors. Relative soil potential is analyzed on the basis of the field data. From this research the soil types found in the study area are Regosol, Cambisol, Latosol, Rensina, Grumusol, and Mediterranean."

"ContentsSustainable management of soil resources and food security / R. Lal and B. A. Stewart -- Global food situation and unresolved and emerging issues / Sahla Shapouri, S. Rosen, S. Allen -- World soil resources: opportunities and challenges / H. Eswaran, P.F. Reich, E. Padamanabhan -- Soil resources and human adaptation in forest and agricultural ecosystem in humid Asia / S. Fukawa ... [et al.] -- Pedogenic acidification in upland soils under different bio climatic conditions in humid Asia / S. Fukawa ... [et al.] -- Soil resources affecting food security and safety in South Asia / T.J. Purkayastha ... [et al.] -- Formations and management of cracking clay soils (vertisols) to enhance crop productivity: Indian experience / K. Pal, T. Bhattacharyya, S.P. Wani -- The role of nuclear isotopic techniques in sustainable land management: achieving food security and mitigating impacts of climate change / L. Nguyen ... [et al.] -- New paradigm to unlock the potential of rainfed agriculture in the SAT / S.P. Wani ... [et al.] -- Land degradation / F.O. Nachtergaele, M. Petri, R. Biancalani -- Where do we stand, twenty years after the assessment of nutrient balance in Sub Saharan Africa / E.M.A. Smaling ... [et al.] -- Research needs for credible data on soil resources and degradation / R. Lal."

"The concentration of methana (CH4) in the atmosphere is increasing at 1% per annum and rice paddies are one of the sources that contrubute to about atmospheric CH4...."