Soil and Water Research, 2019 (vol. 14), issue 1
Relationships between soil physicochemical properties and nitrogen fixing, nitrifying and denitrifying under varying land-use practices in the northwest region of ArgentinaOriginal Paper
Carolina Pérez-Brandan, Annabel Meyer, José M. Meriles, Jorgelina Huidobro, Michael Schloter, Silvina Vargas-Gil
Soil & Water Res., 2019, 14(1):1-9 | DOI: 10.17221/192/2017-SWR 
The aim of this study was to evaluate the response pattern of diazotrophic microbes, denitrifiers and nitrifiers to different types of land use management, such as soybean monoculture (M) during 5 and 24 years (M5 and M24) and soybean-maize rotation (R) during 4 and 15 years (R4 and R15) in two subsequent years at the time point of flowering. Soil samples from a site recently introduced into agriculture (RUA) and a pristine soil under native vegetation (NV) were used as controls. Abundances of different functional groups of microbes were assessed using the direct quantification of marker genes by quantitative real-time PCR using extracted DNA from...
Water and sediment runoff and soil moisture response to grass cover in sloping citrus land, Southern ChinaOriginal Paper
Minghao Mo, Zhao Liu, Jie Yang, Yuejun Song, Anguo Tu, Kaitao Liao, Jie Zhang
Soil & Water Res., 2019, 14(1):10-21 | DOI: 10.17221/147/2017-SWR
Soil erosion is recognized as one of the major environmental problems in the hilly red soil region of Jiangxi province, southern China. An eight-year field experiment was conducted to evaluate the effects of grass cover in the sloping citrus land on water and sediment runoff. Soil moisture regimes were also analysed based on the in-situ soil moisture measurement. Four treatments were carried out in the runoff plot experiment: (1) no vegetation, bare land (BL); (2) conventional treatment, citrus without grass cover (CK); (3) citrus with strip planting of Bermuda grass (SP); (4) citrus with full cover of Bermuda grass (FC). Results showed that...
Genetic diversity and community structure of soil bacteria in Chinese fir plantationsOriginal Paper
Yuanhao He, Xiaojun Deng, Feng Che
Soil & Water Res., 2019, 14(1):22-31 | DOI: 10.17221/10/2018-SWR
To explore the diversity of soil bacteria and changes in the bacterial community structure of Chinese fir plantations of different generations and developmental stages, the genetic diversity of soil bacteria was studied using the 454 sequencing technology. The results showed that the bacterial genetic diversity and community structure of Chinese fir plantation plots under monoculture planting and rotation planting practices were as follows: the Shannon diversity indices of first-generation young plantation of Chinese fir plantations (FYC), second-generation young plantation (SYC), and third-generation young plantation (TYC) initially decreased and...
Functional diversity of microorganisms in metal- and alkali-contaminated soils of Central and North-eastern SlovakiaOriginal Paper
Juraj Fazekaš, Danica Fazekašová, Peter Adamišin, Petra Huličová, Eva Benková
Soil & Water Res., 2019, 14(1):32-39 | DOI: 10.17221/37/2018-SWR
A field-based study and laboratory tests were undertaken to determine the functional diversity of microorganisms in metal- and alkali-contaminated soils in Central and North-eastern Slovakia where iron ore and magnesite have been mined and processed for a long time. To improve the understanding of the functional diversity of microorganisms, we examined the effects of environmental factors on the functional diversity of microorganisms in metal- and alkali-contaminated soils in the emission field of heaps and tailings impoundments of iron ore mines (Central Spiš) and magnesite...
Total content of macroelements and trace elements in Holocene calcareous gyttja from the post-bog area of north-western PolandOriginal Paper
Grzegorz Jarnuszewski, Edward Meller
Soil & Water Res., 2019, 14(1):40-46 | DOI: 10.17221/146/2017-SWR
The study covered 6 sites located in the Vistula glaciation area in north-western Poland, where the Holocene calcareous (gyttja) deposits occur. Three types of such calcareous deposits were isolated: marly (groundwater calcretes) (CaCO3 > 80%, loss of ignition < 20%, non-carbonate fractions < 20%), calcareous gyttja (CaCO3 50-80%, loss of ignition < 40%, non-carbonate fractions < 40%), and clay calcareous gyttja (CaCO3 20-50%, loss of ignition < 30%, non-carbonate fractions < 60%). The content of major and trace elements was determined in different horizons. Several parameters of Holocene calcareous...
Evaluation of methods for water and non-volatile LNAPL content measurement in porous mediaOriginal Paper
Ayele Teressa Chala, Svatopluk Matula, Kamila Báťková, František Doležal
Soil & Water Res., 2019, 14(1):47-56 | DOI: 10.17221/80/2018-SWR
Proper characterization of contaminants in subsurface helps to clean up effectively the contaminated sites. In this study, different methods were used to quantify non-volatile light non-aqueous phase liquid (LNAPL) and water from sample columns subjected to different water to LNAPL ratios. The objective of the study was to evaluate methods for porous media water and LNAPL contents analysis. The liquids were sampled from the sample columns using activated carbon pellets (ACP). Sample columns water content was also measured using soil moisture sensors. Dielectric mixing model (DMM) was evaluated for the estimation of LNAPL content after water and LNAPL...