[Properties of organic matter in natural and reclaimed steppe soil].
The properties of organic matter in steppe chernozem, steppe wind-blown soil and cultivated wind-blown soil were studied by analyzing the status of organo-mineral complex and the combined status and composition of humus. The results showed that different types and utilization patterns of soil had very different effects on the properties of soil organic matter. The amounts of total organic carbon, biomass C, heavy fraction C, extractable humus (HE) and loosely-combined humus and the humification degree were higher in steppe chernozem than in wind-blown soil. Steppe soil had higher amounts of total organic carbon, biomass C, heavy fraction C, HE and different combined humus than sunflower wind-blown soil, but humification degree had no obvious difference.
College of Natural Resources and Environment, Jilin Agricultural University, Changchun 130118, China. plfnj@163.com
Lifeng
L
Ping
Sen
S
Dou
Jinjing
J
Zhang
Song
S
Guan
D003247:Conservation of Natural Resources; D017753:Ecosystem; D009930:Organic Chemicals / Q000032:analysis*; D006109:Poaceae / Q000254:growth & development*; D012987:Soil / Q000032:analysis*
D009930:Organic Chemicals; D012987:Soil