Effects of Land Use Change on Soil Wind Erodibility in the Horul Azim Marshland

IF 1.4 4区农林科学 Q4 SOIL SCIENCE Eurasian Soil Science Pub Date : 2024-01-31 DOI:10.1134/s1064229323602664

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Abstract

In the past, the Hur al-Azim marshland served as a natural absorber of dust particles owing to its water content. However, due to a reduction in its expanse, it has transformed into a notable source of dust production in the region. The mitigation of wind erosion necessitates a comprehensive understanding of the quantity and influential factors of wind erodibility. This research endeavors to assess the impact of the drying process of the Hur al-Azim marshland on the wind erodibility. A total of 44 sampling points were strategically chosen along a perpendicular transect to the marshland, specifically in its desiccated segments, with intervals of approximately 5 km. The evaluation of wind erodibility and wind threshold velocity was carried out through a portable wind tunnel, while pertinent soil physical and chemical characteristics were analyzed in the laboratory. The diverse land uses, encompassing Oil Exploitation Lands (OEL), Marshland Fringe Lands (MFL), Marshland Neighboring Lands (MNL), cultivated lands, and virgin lands, were scrutinized for the variability in soil physical and chemical parameters. Subsequently, the influence of these characteristics on wind erodibility and wind threshold velocity was investigated. Leveraging the R software and employing the multiple linear regression (MLR) method, a robust combination of independent variables (physical and chemical properties) was determined and utilized to predict the dependent variables (wind threshold velocity and wind erodibility). Cultivated land exhibited the highest wind erodibility, coupled with the lowest organic matter content. The maximum wind threshold velocity was observed in virgin land, MFL, and MNL land uses, reaching 12 m/s, while the minimum was recorded in MFL and cultivated land at 2.4 m/s, attributed to the soil moisture exceeding 24.83% in MNL and MFL land uses. The findings indicate a linear and inverse correlation between wind erodibility and soil moisture (R² = 0.42). Notably, the correlation coefficients between soil parameters and erodibility are considerably low, suggesting a lack of statistically significant relationships. The desiccation of the Hur al-Azim marshland emerges as the predominant factor influencing wind erodibility in this region. Consequently, augmenting soil moisture and reinstating marshland water proves instrumental in mitigating wind erodibility.

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土地利用变化对 Horul Azim 湿地土壤风蚀性的影响

摘要过去，胡尔阿齐姆沼泽地因其含水量而成为灰尘颗粒的天然吸收器。然而，由于沼泽地面积缩小，它已成为该地区灰尘产生的一个显著来源。要减缓风蚀，就必须全面了解风蚀的数量和影响因素。本研究旨在评估胡尔阿齐姆沼泽地的干燥过程对风蚀性的影响。研究人员沿着与沼泽地垂直的横断面，特别是在沼泽地干涸的地段，战略性地选择了 44 个采样点，采样间隔约为 5 公里。通过便携式风洞对风蚀性和风阈值速度进行了评估，同时在实验室对相关的土壤物理和化学特征进行了分析。对包括石油开采地 (OEL)、沼泽地边缘地 (MFL)、沼泽地邻近地 (MNL)、耕地和处女地在内的不同土地用途进行了仔细研究，以了解土壤物理和化学参数的变化情况。随后，研究了这些特征对风蚀性和风阈值速度的影响。利用 R 软件和多元线性回归（MLR）方法，确定了自变量（物理和化学特性）的稳健组合，并以此预测因变量（风阈值速度和风蚀性）。耕地的风蚀性最高，有机质含量最低。风阈值速度在原始土地、MFL 和 MNL 土地利用中最高，达到 12 m/s，而在 MFL 和耕地中最低，为 2.4 m/s，这归因于 MNL 和 MFL 土地利用中土壤湿度超过 24.83%。研究结果表明，风蚀性与土壤湿度之间存在线性反相关关系（R2 = 0.42）。值得注意的是，土壤参数与侵蚀性之间的相关系数相当低，表明两者之间缺乏显著的统计关系。胡尔阿齐姆沼泽地的干燥是影响该地区风蚀性的主要因素。因此，增加土壤湿度和恢复沼泽地水分有助于减轻风蚀性。

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来源期刊

Eurasian Soil Science 农林科学-土壤科学

CiteScore

2.70

自引率

35.70%

发文量

137

审稿时长

12-24 weeks

期刊介绍： Eurasian Soil Science publishes original research papers on global and regional studies discussing both theoretical and experimental problems of genesis, geography, physics, chemistry, biology, fertility, management, conservation, and remediation of soils. Special sections are devoted to current news in the life of the International and Russian soil science societies and to the history of soil sciences. Since 2000, the journal Agricultural Chemistry, the English version of the journal of the Russian Academy of Sciences Agrokhimiya, has been merged into the journal Eurasian Soil Science and is no longer published as a separate title.