erózia pôdy 3 [vynechat] soil erosion 3 [vynechat] damage to soils 2 [vynechat] ochrana pôdy 2 [vynechat] poškodenie pôdy 2 [vynechat] soil pollution 2 [vynechat] soil protection 2 [vynechat] znečistenie pôdy 2 [vynechat] agricultural soils 1 [vynechat] environment 1 [vynechat] environmental monitoring 1 [vynechat] monitorovanie životného prostredia 1 [vynechat] poľnohospodárska pôda 1 [vynechat] soil properties 1 [vynechat] vlastnosti pôdy 1 [vynechat] životné prostredie 1 [vynechat]