دورية أكاديمية
Reviewing and analyzing shrinkage of peat and other organic soils in relation to selected soil properties
| العنوان: | Reviewing and analyzing shrinkage of peat and other organic soils in relation to selected soil properties |
|---|---|
| المؤلفون: | Seidel, Ronny, Dettmann, Ullrich, Tiemeyer, Bärbel |
| المصدر: | Vadose Zone Journal 22 (2023), Nr. 5 ; Vadose Zone Journal |
| بيانات النشر: | Wiley |
| سنة النشر: | 2023 |
| المجموعة: | Institutional Repository of Leibniz Universität Hannover |
| مصطلحات موضوعية: | Carbon dioxide, Global warming, Organic carbon, Peat, Soils, Terminology, Bulk density, Bulk substrates, Different soils, Mineral soils, Organic soil, Parameter measurement, Shrinkage and swellings, Soil organic carbon, Soil property, Volume change, Shrinkage, ddc:624 |
| الوصف: | Peat and other organic soils (e.g., organo-mineral soils) show distinctive volume changes through desiccation and wetting. Important processes behind volume changes are shrinkage and swelling. There is a long history of studies on shrinkage which were conducted under different schemes for soil descriptions, nomenclatures and parameters, measurement approaches, and terminologies. To date, these studies have not been harmonized in order to compare or predict shrinkage from different soil properties, for example, bulk density or substrate composition. This, however, is necessary to prevent biases in the determination of volume-based soil properties or for the interpretation of elevation measurements in peatlands, in order to predict carbon dioxide emissions or uptake caused by microbial decomposition or peat formation. This study gives a comprehensive overview of shrinkage studies carried out in the last 100 years. Terminology and approaches are systematically classified. In part I, the concepts for shrinkage characteristics, measurement methods, and model approaches are summarized. Part II is a meta-analysis of shrinkage studies on peat and other organic soils amended by own measurement data obtained by a three-dimensional structured light scanner. The results show that maximum shrinkage has a wide range from 11% to 93% and is strongly affected by common soil properties (botanical composition, degree of decomposition, soil organic carbon, and bulk density). Showing a stronger correlation, bulk density was a better predictor than soil organic carbon, but maximum shrinkage showed a large spread over all types of peat and other organic soils and ranges of bulk density and soil organic carbon. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| تدمد: | 1539-1663 |
| العلاقة: | ESSN:1539-1663; http://dx.doi.org/10.15488/17309Test; https://www.repo.uni-hannover.de/handle/123456789/17437Test |
| DOI: | 10.15488/17309 |
| الإتاحة: | https://doi.org/10.15488/17309Test https://doi.org/10.1002/vzj2.20264Test https://www.repo.uni-hannover.de/handle/123456789/17437Test |
| حقوق: | CC BY-NC-ND 4.0 Unported ; https://creativecommons.org/licenses/by-nc-nd/4.0Test ; frei zugänglich |
| رقم الانضمام: | edsbas.B7FF8E75 |
| قاعدة البيانات: | BASE |
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