Enzymatic activity inside and outside of water-stable aggregates in soils under different land use
- 作者: Garbuz S.1, Yaroslavtseva N.1, Kholodov V.1
-
隶属关系:
- Dokuchaev Soil Science Institute
- 期: 卷 49, 编号 3 (2016)
- 页面: 367-375
- 栏目: Soil Biology
- URL: https://journals.rcsi.science/1064-2293/article/view/223789
- DOI: https://doi.org/10.1134/S1064229316030030
- ID: 223789
如何引用文章
详细
A method is presented for assessing the distribution of enzymatic activity inside and outside of water-stable aggregates. Two samples of water-stable aggregates >1 mm have been isolated from dry aggregates of 1–2 mm. To determine the enzymatic activity, a substrate has been added to one of the samples without disaggregation; the other sample has been preliminarily disaggregated. Enzymatic activity within waterstable aggregates has been assessed from the difference between the obtained results under the supposition that the penetration of substrate within the water-saturated aggregates is hampered, and enzymatic reactions occur only at the periphery. The levels and distributions of enzymatic (peroxidase, polyphenol oxidase, and catalase) activities in water-stable aggregates of soddy-podzolic soils under forest and plowland and typical chernozems of long-term field experiments have been studied. The peroxidase, polyphenol oxidase, and catalase activities of water-stable aggregates vary from 6 to 23, from 7 to 30, and from 5 to 7 mmol/(g h), respectively. The ratio between the enzymatic activities inside and outside of soil aggregates showed a higher dependence on soil type and land use, as well as on the input of organic matter and the structural state, than the general activity level in water-stable aggregates.
作者简介
S. Garbuz
Dokuchaev Soil Science Institute
编辑信件的主要联系方式.
Email: st_garbuz@mail.ru
俄罗斯联邦, Pyzhevskii per. 7, Moscow, 119017
N. Yaroslavtseva
Dokuchaev Soil Science Institute
Email: st_garbuz@mail.ru
俄罗斯联邦, Pyzhevskii per. 7, Moscow, 119017
V. Kholodov
Dokuchaev Soil Science Institute
Email: st_garbuz@mail.ru
俄罗斯联邦, Pyzhevskii per. 7, Moscow, 119017