伊朗西南部钙质土优势系列土壤物理质量评价

Q3 Earth and Planetary Sciences

Polish Journal of Soil Science Pub Date : 2020-12-26 DOI:10.17951/PJSS.2020.53.2.225-243

Fatemeh Meskini-Vishkaee, A. Jafarnejadi, Mohammad Hadi MOUSAVI-FAZL

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引用次数: 0

摘要

钙质土壤广泛分布在干旱和半干旱地区。碳酸盐可以通过影响土壤pH值、结构和土壤有效水来影响土壤质量。伊朗，尤其是胡齐斯坦省，有大量的钙质土壤，因此，提供可持续农业评估土壤质量至关重要。本研究旨在评价伊朗胡齐斯坦省主要钙质土系列的土壤物理质量。计算了土壤物理质量指标，包括德克斯特s指数、空气容量、土壤有效含水量、相对含水量和大孔率。结果表明，基于Dexter s指数，只有一个石灰性土壤系列的物理质量较差（s＜0.035）。然而，对不同土壤质量指标的同时评估显示，所研究的石灰性土壤序列中，分别有56%和22%的石灰性土系的通气量和土壤有效水有限。而最弱的土壤物理质量与Ahvaz东南部的土壤有关，同时存在通气和土壤有效水限制。结果表明，对石灰性土壤物理质量的正确评估需要考虑更多的物理指标，而不仅仅是与土壤通气条件相关的Dexter s指数，包括空气容量和大孔隙性。

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Evaluation of soil physical quality in dominant series of calcareous soils in south-west of Iran

Calcareous soils are widely spread in arid and semiarid regions. Carbonates can affect soil quality by influencing soil pH, structure and soil available water. There are lots of calcareous soils in Iran and especially Khuzestan province, so, providing sustainable agriculture evaluating the soil quality is essential. This study was done to evaluate the soil physical quality in dominant calcareous soil series in Khuzestan province, Iran. Soil physical quality indicators, including Dexter's S index, air capacity, soil available water capacity, relative water capacity and macroporosity were calculated. The results showed that, based on Dexter's S index, only one calcareous soil series had a poor physical quality (S < 0.035). However, the simultaneous evaluation of different soil quality indicators showed that 56 % and 22 % of studied calcareous soil series had limited aeration and soil available water, respectively. While the weakest soil physical quality was related to the southeastern soil of Ahvaz, with both aeration and soil available water limitations. The results showed that the proper assessment of soil physical quality in calcareous soils requires considering more physical indicators than just Dexter's S index related to soil aeration condition including air capacity and macroporosity.

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来源期刊

Polish Journal of Soil Science Earth and Planetary Sciences-Earth-Surface Processes

CiteScore

1.00

自引率

0.00%

发文量

期刊介绍： The Journal focuses mainly on all issues of soil sciences, agricultural chemistry, soil technology and protection and soil environmental functions. Papers concerning various aspects of functioning of the environment (including geochemistry, geomophology, geoecology etc.) as well as new techniques of surveing, especially remote sensing, are also published.