Perkembangan Tanah Dari Bahan Vulkan Pada Toposekuen Wilayah Bangli Selatan, Kabupaten Bangli

Research on the development of soil from vulkan material in the toposcopic southern Bangli Region as for the purpose of the study is as follows: (1) the process of formation and development of soil formed from toposcopic volcanic material in the southern, Bangli Region (2) obtain data on soil characteristics in the southern Bangli Region (3) knowing the potential of land for agricultural management in the southern, Bangli Region.This research was carried out with methods of soil survey, laboratory analysis, and supported with secondary data. Three profiles that represent Local Topography is selected based on the height of the different places, profile (N-1) with an altitude of 850 metres above sea level, profile (N-2) with an altitude of 540 metres above sea level, and the profile (N-1) h with an altitude of 200 metres above sea level. A third profile is have the same slope direction that is the direction the southern slope.Parent material formed in the area of research is derived from volcanic material, namely tuff deposits of lava and Vulcan of Buyan and Beratan, Batur, Ancient. Research areas included in the climate type A (very wet). The process of genesis of soils that occur in research is to the top slopes are experiencing a process of erosion, the middle slopes of the transport process and foot slopes of the deposition process.Third that profile has undergone a process of horisonisasi. The level of development of land is at the stage of virile. The characteristics of the soil a bit sour, cation exchange capacity of low to medium, base saturation is low to moderate, organic material is very low to low, the texture of the sand very clay to clay. Types of minerals found in the third profile dominated by halloysite minerals.Based on the results of research affect soil properties that are formed. On the top slopes are formed very deep in the depths of the solum 177 centi metres, middle slopes formed solum in depth 153 centi metres and foot slopes formed a shallow at a depth of solum 137 centi metres. Bangli area Southern potentially in support of plant growth and increase agricultural production.

Properties and genesis of soils in the Balagansk forest-steppe of Central Siberia and their ecological and resource potential

The aim of the study. To study the properties and genesis of natural soils of forest-steppe areas of Balagansk steppe. Location and time. The environs of Balagansk settlement in the Balagansky district of Irkutsk region, 2013-2018. Methodology. Combined field and laboratory studies of soil cover and soil properties using soil-morphological, pedo-lithological, climatostratigraphic, botanical, geological-geomorphological and comparative geographical methods, as well as various physical and chemical analyses. Main results. The study of soil properties of the Balagansk’ forest-steppe and assessment of their classification position revealed the basic regularities of geographical distribution of soils. In steppe areas of the studied region clay-illuvial and textural-carbonate chernozems were formed. The forest vegetation favoured the developed of residual-carbonate gray, dark gray, gray and dark gray metamorphic and burozemic soils; the floodplain areas are predominantly occupied by gley soils and dark-humus gleic soils. Conclusion. The study of soil and vegetation cover of the Balagansk’ forest-steppe showed that soils were developed on the eluvium-deluvium of carbonate Cambrian red-colored siltstones and loess cover and have sufficiently high natural fertility and ecological and resource potential. The soils of the investigated area are characterized by a large variety and complex polygenetic structure of the soil profile, which reflects the change of soil formation’ conditions during Holocene-Pleistocene.

Thermal analysis of soils formed on limestone in the Bükk Mountains, North Hungary

The present article discusses the applicability of thermoanalytical methods in the analysis of Hungarian soils formed on carbonate rocks. Up to now only limited mineralogical and soil chemical research has been done on these soils. Soils from the Bükk Mountains, the most varied limestone region in Hungary, were used for the investigations. The aim was to extend our incomplete knowledge on the mineral composition and formation processes of these soils and to demonstrate the possibilities and evaluation potential of thermoanalytical techniques. All the soils investigated were formed on limestone and had different surface soil thickness, influenced by the accumulation of silicate debris and the microterrain. The results of soil mineralogical analysis revealed an extraordinarily high proportion of quartz compared to that of other minerals (especially calcite), indicating that these soils could not have originated solely from the weathering of the limestone bedrock. The results also showed that thermoanalytical methods could complement classical chemical and instrumental (XRPD) methods in research on the genesis of soils formed on limestone.