The effect of stones removal on redeployng of soil

Abstract

Stone removing makes influence on soil [1-8]: soil structure, humidity and thermal accumulation, thermal properties are changing. This happens due to such main reasons: • while removing large and average stone from soil layer their place is occupied by certain soil volume from ground layer, • while removing bigger and smaller stone together is removed unseparated from it certain part of productive soil, • erosion of soil increases when stone is removed from soil [9,10]. Large and average stone are removed raising it from soil, then gathering them from field and loading to vehicles. Small stone up to 30 cm diameter might be removed [2] using various methods like gathering to vehicles and taking out; gathering and taking out only bigger fraction from field while putting smaller fraction into deepened technological track or crushing stones of this fraction and spreading in the field. The last two methods might be used preparing soil for potatoes [11]. Unit, having machine called separator in its design, by one run separates and hoes well the soil. If small fraction is crushed, then stone is removed as interruption removing minimal amount of soil. There are no enough investigations on consequences of stones removing whereas on soil redeployment while removing stones we have not found at all. There is still undetermined, in what case damage to soil arable layer is bigger: filling places of removed stones or taking out soil together with small stones, which is being removed. Therefore in this investigation we have goal to find out dependency of amount of removed bigger and small stones and methods for theirs removing on amount of soil that is being redeployed.