Impact of solar radiation and physical environment parameters on biogenic micro gas emission

Abstract

In order to understanding a fluctuation of the biogenic micro gas emission, it is necessary to analyze a lot of physical parameters: temperature of atmosphere and soil, atmosphere gas concentration (02, C02, ethylene etc.), soil solidity, dependency of the wind velocity on the height and density of plants, humidity of the soil, plant albedo variation response on the surface topography, vegetation period and other factors. Our experiments have been done using data collection according to the national USDA's Forest Health Monitoring Program. Biosphere-atmosphere interactions were investigated on a light deeply carbonate washed light loam soil (Bathihypogleyi- Calc(ar)ic Luvisol) in semi natural and intensive grassland ecosystems (54°52' N, 23°50' E) of Training farm of Lithuanian University of Agriculture in 2009. Cultivated grassland as the source of the biogenic micro gases has been taken. The data have been collected in a real time using digital sensors of the humidity, pressure, gas concentration, solar intensity, wind speed and temperature. The all dependency of the various physical data was valuated according on the plant growth. All picked data set should be used analyzing ecological drivers on the fluctuation of the climate. Solar radiation influenced humidity, which affected traffic ability, compaction and nitrogen retention. Measurement of environmental properties that affect fluid storage and transport, such as macro porosity, provided soil quality indices that helped in recommending suitable soil management systems.