دورية أكاديمية
Effect of Biochar on Soil-Water Characteristics of Soils: A Pore-Scale Study
| العنوان: | Effect of Biochar on Soil-Water Characteristics of Soils: A Pore-Scale Study |
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| المؤلفون: | Xin Chen, Linfei Li, Xiaofeng Li, Jianyu Kang, Xiang Xiang, Honglian Shi, Xingwei Ren |
| المصدر: | Water, Vol 15, Iss 10, p 1909 (2023) |
| بيانات النشر: | MDPI AG, 2023. |
| سنة النشر: | 2023 |
| المجموعة: | LCC:Hydraulic engineering LCC:Water supply for domestic and industrial purposes |
| مصطلحات موضوعية: | biochar-amended soils, pore size distribution, soil water retention curve, nuclear magnetic resonance, Hydraulic engineering, TC1-978, Water supply for domestic and industrial purposes, TD201-500 |
| الوصف: | The mechanical and hydraulic properties of soils are largely governed by their soil-water characteristics, which are influenced by factors such as pore size distribution (PSD). While biochar is commonly used as an additive to alter soil properties, its effect on PSD and the soil water retention curve (SWRC) at the pore scale remains unclear. This study aims to investigate the impact of biochar on PSD and SWRC in soils of different types. The study utilized nuclear magnetic resonance (NMR) and the filter paper method to obtain the particle size distribution (PSD) curve and soil water retention curve (SWRC) of various types of soils, ranging from fine-grained to coarse-grained, with different amounts of biochar. The results and discussion revealed that the impact of biochar on soil PSD and SWRC varied depending on the soil type and biochar content. In fine-grained soils, the addition of 8% biochar resulted in the greatest decrease in mesopore size and percentage, while in medium-grained soils, 6% biochar had the most significant effect, and in coarse-grained soils, the optimum biochar content was 2%. At low suction states, the addition of 8% and 2% biochar improved the water retention of fine-grained and medium-grained soils, respectively, but had little effect on coarse-grained soils. Overall, the effect of biochar on soil-water characteristics was non-monotonic and depended on the relative sizes of biochar and soil particles. Therefore, selecting the optimum biochar-to-soil ratio requires careful consideration of these factors. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2073-4441 |
| Relation: | https://www.mdpi.com/2073-4441/15/10/1909; https://doaj.org/toc/2073-4441 |
| DOI: | 10.3390/w15101909 |
| URL الوصول: | https://doaj.org/article/52cd435e4d07444f9d50fafd700ea830 |
| رقم الأكسشن: | edsdoj.52cd435e4d07444f9d50fafd700ea830 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 20734441 |
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| DOI: | 10.3390/w15101909 |