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Soil Research Soil Research Society
Soil, land care and environmental research

Volume 62 Number 6 2024

SR24078Analysis of soil erosion dynamics and its driving factors in the Qilian Mountains of Qingdong

Mingyuan Li 0009-0008-9056-0613, Xiaohuang Liu, Jianli Ding, Wenbo Zhang, Ran Wang, Xinping Luo, Liyuan Xing, Chao Wang and Honghui Zhao

This paper explores the extent of soil erosion and the main driving factors behind soil erosion in the alpine temperate forest-grass subregion of Qilian Mountains in Qingdong by using the Universal Soil Loss Model (RUSLE) and Geographical detector, which can provide some scientific support for soil erosion management and governmental decision-making in the study area.

SR24050Gypsum form and rate can affect soil physicochemical properties and crop productivity in soils of low electrical conductivity that have been enriched by sodium due to supplementary irrigation

Walter D. Carciochi 0000-0003-4239-4354, Justo Chevallier Boutell, Gisela V. García, Natalia V. Diovisalvi, Nicolas Wyngaard, Adrián Lapaz Olveira and Nahuel I. Reussi Calvo

Sodium accumulation in soil due to supplementary irrigation can detrimentally impact its physical and chemical properties under low electrical conductivity, leading to reduced crop productivity. Our observations indicated that gypsum applied in powdered form and at high rates (3000 kg ha−1), effectively improved soil chemical conditions and enhanced grain yield in sodium-affected soils. Sodium-induced crop production constraints can be addressed in the short-term by utilising powdered gypsum.

SR23203Modified fungal diversity in dense clay subsoils after deep-banding organic substrate

Joshua J. Vido, Jian Jin, Helen L. Hayden, Corinne Celestina 0000-0003-0840-9276, Peter W. G. Sale, Roger Armstrong, Caixian Tang, Jennifer L. Wood 0000-0002-7313-5681 and Ashley E. Franks

Amid the increasing focus on sustainable agriculture and improving crop productivity, our study aims to underscore the importance of microbial community examinations for gaining a deeper comprehension of soil management dynamics. We established that applying deep-banded organic amendments can successfully enrich agriculturally significant soil fungi for an extended duration following a single application within a hostile subsoil. Our results emphasise the legacy effects this management approach has on fungal community diversity, persisting even after the amendments are no longer detectable.

SR23216Spatial and temporal distribution and environmental determinants of freeze-thaw erosion intensity in Qiangtang grasslands, China

Gaobo Zhang 0009-0007-4270-5593, Xiaohuang Liu, Jinjie Wang, Jiufen Liu, Xiaofeng Zhao, Hongyu Li, Ran Wang, Xinping Luo, Liyuan Xing, Chao Wang and Honghui Zhao

This study uses geographical detectors and the analytic hierarchy process to analyse the spatial and temporal distribution of freeze-thaw erosion in the Qiangtang Plateau grassland area of northern Tibet from 2000 to 2019. The results show that freeze-thaw erosion is more serious during the non-growing seasonthan the growing season. The spatial distribution of freeze-thaw erosion is mainly affected by changes in annual precipitation and temperature, and secondly by vegetation coverage. This research contributes to the management of climate change.

Wetting and drying alternation (WD) on the mechanical properties of root-soil composites is not clear at present, or if roots can inhibit the deterioration of soil under WD. This paper investigated the effect of WD on the shear strength of root-loess composites. WD was found to deteriorate soil shear strength and cohesion, while roots inhibited the deterioration of WD on the shear property of loess. The results provide a scientific basis for ecological construction in loess areas.

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Best Student-Led Paper

The Best Student-Led Paper published in 2023 has been awarded to Guilherme Oliveira Andrade da Silva.

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