Soil and Water Research, 2021 (vol. 16), issue 2
Derivation and application of a generalised exchange-adsorption isotherm for the adsorption of hydrophobic compounds on soilsOriginal Paper
Imre Czinkota, Tibor Filep, Gabriella Rétháti, László Tolner, Miklós Gulyás, András Sebők, Boglárka Dálnoki
Soil & Water Res., 2021, 16(2):67-73 | DOI: 10.17221/69/2020-SWR 
A general adsorption model able to provide a good description of the multilayer adsorption of ions and molecular compounds under any circumstances is proposed in this paper. In order to reach this goal, a general form of isotherm was deduced based on the Gapon equation and classical isotherm forms. The adsorption of molecular compounds with diverse hydrophobicity and acid-base characteristics were investigated and validated with a new model for the adsorption of four pesticides on different soils. The adsorption capacity and adsorption energy estimated by the new model were found to be related to the organic matter content of the soil. Great differences...
Estimation of the annual rainfall erosivity index based on hourly rainfall data in a tropical regionOriginal Paper
Ming-Hsi Lee, I-Ping Hsu
Soil & Water Res., 2021, 16(2):74-84 | DOI: 10.17221/25/2020-SWR
The annual mean rainfall erosivity (R) indicates the potential soil loss caused by the precipitation and runoff and is used to predict the soil loss from agricultural hillslopes. R is calculated from rainfall stations with continuously recording rainfall databases. However, many short-term real-time rainfall databases that also relate to the rainfall intensity are not readily available around Taiwan, with the hourly rainfall data being predominantly available. The annual mean rainfall erosivity calculated by the 10-min rainfall data accumulation converted to the 30-min rainfall data (R10_30) can be estimated using...
Delimitation of low topsoil moisture content areas in a vineyard using remote sensing imagery (Sentinel-1 and Sentinel-2) in a Mediterranean-climate regionOriginal Paper
Maria Paula Mendes, Magda Matias, Rui Carrilho Gomes, Ana Paula Falcão
Soil & Water Res., 2021, 16(2):85-94 | DOI: 10.17221/101/2019-SWR
Irrigation can be responsible for salt accumulation in the root zone of grapevines when late autumn and winter precipitation is not enough to leach salts from the soil upper horizons, turning the soil unsuitable for grape production. The aim of this work is to present a novel methodology to outline areas, within a drip-irrigated vineyard, with a low soil moisture content (SMC) during, and after, an 11-month agricultural drought. Soil moisture (SM) field measurements were performed in two plots at the vineyard, followed by a geostatistical method (indicator kriging) to estimate the SM class probabilities according to a threshold value, enlarging the...
Estimating the curve number for conventional and soil conservation technologies using a rainfall simulatorOriginal Paper
David Kincl, David Kabelka, Jan Vopravil, Darina Heřmanovská
Soil & Water Res., 2021, 16(2):95-102 | DOI: 10.17221/114/2020-SWR
The aim of the article was to verify the curve number (CN) values given in the National Engineering Handbook (NEH) methodology, whether they really correspond to all wide-row crops. The tested crops were maize, hops and potatoes grown using conventional and soil conservation technologies. All these crops are classified as wide-row crops, but they are very different in terms of the cultivation process. The basis for the calculation of our CN values were field measurements carried out using a rainfall simulator within the time span from 2014 to 2020 on the soil corresponding to hydrological group B in two repetitions: naturally dry soil corresponding...
The overshadow of the human evolvement process in the dynamics of soil drift of an agricultural watershed in Nilgiri Hills, IndiaOriginal Paper
Sangeetha Ramakrishnan, Ambujam Neelakanda Pillai Kanniperumal
Soil & Water Res., 2021, 16(2):103-111 | DOI: 10.17221/105/2020-SWR
The Nilgiri Biosphere, being one of the critical catchments, a small agricultural watershed of Udhagamandalam has been analysed to show the need to improve the agriculture by reducing the soil erosion. For this study, the land use and land cover classification was undertaken using Landsat images to highlight the changes that have occurred between 1981 and 2019. The Revised Universal Soil Loss Equation (RUSLE) method and the Geographic Information System (GIS) was used in this study to determine the soil erosion vulnerability of Sillahalla watershed in the Nilgiri Hills in Tamilnadu. This study will help to promote the economic development of the watershed...
Straw application and soil organic carbon change: A meta-analysisOriginal Paper
Qiuju Wang, Xin Liu, Jingyang Li, Xiaoyu Yang, Zhenhua Guo
Soil & Water Res., 2021, 16(2):112-120 | DOI: 10.17221/155/2020-SWR
Straw return is considered an effective way to improve the soil organic carbon (SOC) content of farmland. Most studies have suggested that a straw application increases the SOC content; however, some suggest that a straw application reduces the SOC content when used in combination with mineral fertilisation. Therefore, a meta-analysis of the effect of a straw application on the SOC change is needed. This study comprises a meta-analysis of 115 observations from 65 research articles worldwide. Straw applications can significantly increase the proportion of the SOC in the soil. Straw applications caused a significant microbial biomass carbon (MBC) increase...
Best management practices for mitigating agricultural nutrient pollution in the Mun River Basin, ThailandOriginal Paper
Arika Bridhikitti, Thayukorn Prabamroong, Guohuan Liu, Guo-An Yu
Soil & Water Res., 2021, 16(2):121-128 | DOI: 10.17221/101/2020-SWR
The Mun River in NE Thailand is one of the significant tributaries of the Lower Mekong River. Its poor river quality has been reported and agricultural activities were claimed to be major causes. This study aims to assess the best management measures appropriately responsive to the nutrient pollution in the Mun River Basin's agricultural ecosystems. The data used for the analysis were acquired from field measurements during the 2018 wet season via satellite retrieval and secondary data collection. Linkages between land-soil datasets and hydro-water quality datasets were assessed through a canonical correlation analysis. The results suggest possible...
Thallium uptake/tolerance in a model (hyper)accumulating plant: Effect of extreme contaminant loadsOriginal Paper
Ondřej Holubík, Aleš Vaněk, Martin Mihaljevič, Kateřina Vejvodová
Soil & Water Res., 2021, 16(2):129-135 | DOI: 10.17221/167/2020-SWR
Thallium (Tl) is a toxic trace element with a highly negative effect on the environment. For phytoextraction purposes, it is important to know the limitations of plant growth. In this study, we conducted experiments with a model Tl-hyperaccumulating plant (Sinapis alba L., white mustard) to better understand the plant tolerance and/or associated detoxification mechanisms under extreme Tl doses (accumulative 0.7/1.4 mg Tl, in total). Both the hydroponic/semi-hydroponic (artificial soil) cultivation variants were studied in detail. The Tl bioaccumulation potential for the tested plant reached up to 1% of the total supplied Tl amount. Furthermore,...