Changes in microbial C, N, P and ATP contents, numbers and respiration on storage of soil
Changes in microbial C, N, P and ATP contents, numbers and respiration on storage of soil
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DOI：
10.1016/0038-0717(86)90018-0
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发表时间：
1986
影响因子：
9.7
通讯作者：
A. W. West;D. J. Ross;J. C. Cowling
中科院分区：
文献类型：
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作者：
A. W. West;D. J. Ross;J. C. Cowling
通过夏季和冬季采集的样品，研究了高磷和低磷放牧条件下两种土壤在25℃和50%持水条件下培养7d对土壤微生物C、N、P和−含量、数量和呼吸作用的影响。分析前的培养(即储存或预培养)导致了所测量的大多数性质的显著变化(P<；0.05)；季节性影响通常是明显的，两种土壤的表现基本相似。微生物数量和呼吸作用在夏季样品的前期培养过程中有所增加，但在冬季样品中普遍下降。根据氯仿熏蒸程序估计，预孵化导致生物量C减少，但增加了ATP含量。矿质N淋洗量和生物量P的变化较小，一致性较差。在培养7天后，所测得的许多性质仍在变化。
The effects of a 7-day incubation (at 25°C and 50% of water-holding capacity, −0.001 MPa) of two soils, from under grazed pastures of high and low P status, on microbial C, N, P and ATP contents, numbers, and respiration were investigated with samples collected in summer and winter. Incubation prior to analysis (i.e. storage or pre-incubation) resulted in a significant (P< 0.05) alteration in most of the properties measured; seasonal effects were often marked with the two soils generally behaving similarly. Microbial numbers and respiration increased during prior incubation of summer samples, but generally decreased in winter samples. Pre-incubation resulted in a decrease in biomass C, as estimated by the chloroform fumigation procedure, but an increase in ATP content. Changes in mineral-N flush and biomass P were smaller and less consistent. Many of the properties measured were still changing after 7 days incubation.