Details

Autor(en) / Beteiligte

• Xue, Sha
• Liu, Guo-Bin
• Dai, Quan-Hou
• Li, Xiao-Li
• Wu, Rui-Jun

Titel

Dynamic changes of soil microbial biomass in the restoration process of shrub plantations in loess hilly area

Ist Teil von

• Ying yong sheng tai xue bao, 2008-03, Vol.19 (3), p.517-523

Ort / Verlag

China

Erscheinungsjahr

2008

Quelle

MEDLINE

Beschreibungen/Notizen

• By the method of spatiotemporal substitution and taking a slope farmland and a natural Platycladus orientailis L. forest as the controls, this paper studied the dynamic changes of soil microbial biomass, microbial respiration, metabolic quotient (qCO2) and physicochemical properties under the Caragana korshinkii and Hippophae rhamnoides plantations with different restoration age in loess hilly area. The results showed that with the increasing restoration age of the shrubs, soil physicochemical properties improved obviously, and soil microbial biomass had a significant increase. After 7 years restoration of C. korshinkii plantation, soil microbial biomass C increased apparently, compared with that in farmland, and the increments after each 5-7 years were all significant. Microbial biomass N and P had no significant increase in the first 13 years but kept relatively stable in the 20-30 years restoration of C. korshinkii plantation, and were significantly higher than those in farmland but lower than those under