Structure and activity of soil microbial communities in three Mediterranean forests

被引:27
作者
Grosso, Felicia [1 ]
Iovieno, Paola [2 ]
Alfani, Anna [3 ]
De Nicola, Flavia [1 ]
机构
[1] Univ Sannio, Dipartimento Sci & Tecnol, Via F De Sanctis SNC, I-82100 Benevento, Italy
[2] Consiglio Ric Agr & Anal Econ Agr, Ctr Ric Orticoltura & Florovivaismo, Via Cavalleggeri 25, I-84098 Pontecagnano Faiano, SA, Italy
[3] Univ Salerno, Dipartimento Chim & Biol Adolfo Zambelli, Via Giovanni Paolo 2 132, I-84084 Fisciano, SA, Italy
关键词
Enzyme activity; PLFA profile; Ergosterol; Fagus sylvatica; Quercus ilex; Quercus cerris; ORGANIC-MATTER; ENZYME-ACTIVITIES; FUNCTIONAL-SIGNIFICANCE; LITTER; CARBON; BIOMASS; GRADIENT; FUNGI; ACID; DECOMPOSITION;
D O I
10.1016/j.apsoil.2018.07.007
中图分类号
S15 [土壤学];
学科分类号
0903 ; 090301 ;
摘要
The effect of plant cover on soil microbial community structure and activity was investigated in forest ecosystems dominated by holm oak (Quercus ilex), Turkey oak (Quercus cerris) and beech (Fagus sylvatica), in two seasons (autumn and early summer). Microbial community structure was investigated by phospholipid fatty acid (PLFA) profile and ergosterol determination. Microbial community activity was assessed by fluorescein diacetate hydrolisys, beta-glucosidase and cellulase activities. The Turkey oak forest showed the lowest soil microbial biomass, both as total and specific PLFA markers. PLFA profile showed a different microbial community structure among forest soils, mainly between the two oak systems. Enzyme activities were affected by soil organic carbon content, with the lowest values measured in Turkey oak. A seasonal effect both on microbial biomass and on enzyme activity was generally observed. Among the investigated forest systems, the beech forest appeared to store more carbon both in aboveground biomass and in soil.
引用
收藏
页码:280 / 287
页数:8
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