[1]CHENG Man,CHENG Yi,AN Shao-shan.Effects of Cropland Conversion on Soil Microbial Biomass and Enzymatic Activities in the Loess Hilly Area of Ningxia[J].Research of Soil and Water Conservation,2010,17(05):142-147.
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Effects of Cropland Conversion on Soil Microbial Biomass and Enzymatic Activities in the Loess Hilly Area of Ningxia
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
17
Number of periods:
2010 05
Page number:
142-147
Column:
Public date:
2010-10-20
- Title:
- Effects of Cropland Conversion on Soil Microbial Biomass and Enzymatic Activities in the Loess Hilly Area of Ningxia
- CLC:
- S154.3
- DOI:
- -
- Abstract:
- Based on field investigation and analysis in lab, the effects of different vegetation restoration measures after cropland conversion in loess hilly area on soil microbial biomass carbon, nitrogen, phosphorus and invertase, alkaline phosphatase, catalase and urease activity were studied. The results show that: by different vegetation restoration measures, soil microbial biomass carbon were 1.04～3.12 times of cropland; soil microbial biomass nitrogen of cropland is higher; There is no significant differences were found in soil microbial biomass phosphorus; the improving of activities of invertase and alkaline phosphatase were mainly found in surface layer (0-5 cm soil layer) and 5-20 cm soil layer which were separately 1%～41% and 1%～89% higher than those of cropland; the change rate of catalase activity is the smallest; urease activity, which was in the largest increase in surface layer, is 1.95 times of cropland. After cropland conversion, different vegetation restoration measures improved soil biological fertility.
- References:
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