Changes in water and physical properties of peaty-bog soils drainage and agricultural use

摘要

Twenty-four years of soil cultivation resulted in the following wastes of organic matter: 104 t/ha for permanent herbs; 159 t/ha for cereal crops; 168 t/ha for intertilled crops; 131 t/ha for crop rotation; and 110 t/ha for virgin lands. The depth of the peat deposit was reduced by 16.8, 20.5, 31.7, 29.1, and 17.9 cm, respectively. Wastes of soil organic matter were reduced together with the depth of peat under the herbs and increased under the crops. The outstripping effect of drainage and cultivation affected peat water and physical properties. The ash content and compaction of peat were raised significantly, while its water-holding capacity decreased.