Physical-chemical Characteristics and Moisture Characteristics of Substrates in Different Eroded Microhabitats of Weathered Gangue Dumps
[Objective] The physical and chemical properties and water characteristics of substrates under different eroded microhabitats were studied to provide a theoretical basis for understanding the driving and limiting mechanisms of vegetation settlement and restoration, and to provide scientific referenc...
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Science Press
2023-08-01
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| Series: | Shuitu baochi tongbao |
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| Online Access: | http://stbctb.alljournal.com.cn/stbctben/article/abstract/20230404 |
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| author | Wang Dongli Liu Yi Zhang Ziqian Zhao Xiaoliang Wang Dong Yang Guang |
| author_facet | Wang Dongli Liu Yi Zhang Ziqian Zhao Xiaoliang Wang Dong Yang Guang |
| author_sort | Wang Dongli |
| collection | DOAJ |
| description | [Objective] The physical and chemical properties and water characteristics of substrates under different eroded microhabitats were studied to provide a theoretical basis for understanding the driving and limiting mechanisms of vegetation settlement and restoration, and to provide scientific references for the practice of vegetation reconstruction in early abandoned mining areas in the North China. [Methods] The mechanical composition, bulk density, capillary porosity, pH value, electrical conductivity, and moisture characteristics of bare slopes, rills, shallow gullies, and deposit bodies were studied, and the relationships between them were analyzed. [Results] Particle size matrices varied among different eroded microhabitats, and there were differences among different soil layers. The bulk density of the substrates in different eroded microhabitats followed the order of shallow gully>rill>bare slope>deposit body, while capillary pore size followed the order of deposit body>bare slope>shallow gully>rill. There were no significant differences in the pH value of different eroded microhabitats, but there were differences in the changes in different soil layers. Electrical conductivity followed the order of deposit body>bare slope>shallow gully>rill, and was higher in the 10—20 cm soil layer than in the 0—10 cm soil layer. The matrix moisture content and capillary water capacity of different eroded microhabitats followed the order of deposit body>bare slope>shallow gully>rill. The matrix moisture content and capillary water capacity of the bare slope and the shallow gully were the lowest on the upper slope, while they were lowest for the rill on the middle slope. [Conclusion] The substrate moisture characteristics of weathered gangue dumps were significantly affected by bulk density and capillary porosity. There were relatively more sand and medium-coarse grain particles in bare slopes and deposit bodies of weathered gangue dumps, and the moisture characteristics were superior. Bare slopes and deposit bodies can provide a safe habitat for vegetation settlement and restoration. |
| format | Article |
| id | doaj-art-31e48d318cb840fbb9e822af4db8a091 |
| institution | Kabale University |
| issn | 1000-288X |
| language | zho |
| publishDate | 2023-08-01 |
| publisher | Science Press |
| record_format | Article |
| series | Shuitu baochi tongbao |
| spelling | doaj-art-31e48d318cb840fbb9e822af4db8a0912024-11-13T08:35:20ZzhoScience PressShuitu baochi tongbao1000-288X2023-08-01434243010.13961/j.cnki.stbctb.2023.04.0041000-288X(2023)04-0024-07Physical-chemical Characteristics and Moisture Characteristics of Substrates in Different Eroded Microhabitats of Weathered Gangue DumpsWang Dongli0Liu Yi1Zhang Ziqian2Zhao Xiaoliang3Wang Dong4Yang Guang5College of Environmental Science and Engineering, Liaoning Technical University, Fuxin, Liaoning 123000, ChinaCollege of Environmental Science and Engineering, Liaoning Technical University, Fuxin, Liaoning 123000, ChinaCollege of Environmental Science and Engineering, Liaoning Technical University, Fuxin, Liaoning 123000, ChinaCollege of Environmental Science and Engineering, Liaoning Technical University, Fuxin, Liaoning 123000, ChinaCollege of Mines, Liaoning Technical University, Fuxin, Liaoning 123000, ChinaIndustrial Technology Innovation and Promotion Center of Fuxin City in Liaoning Province, Fuxin, Liaoning 123000, China[Objective] The physical and chemical properties and water characteristics of substrates under different eroded microhabitats were studied to provide a theoretical basis for understanding the driving and limiting mechanisms of vegetation settlement and restoration, and to provide scientific references for the practice of vegetation reconstruction in early abandoned mining areas in the North China. [Methods] The mechanical composition, bulk density, capillary porosity, pH value, electrical conductivity, and moisture characteristics of bare slopes, rills, shallow gullies, and deposit bodies were studied, and the relationships between them were analyzed. [Results] Particle size matrices varied among different eroded microhabitats, and there were differences among different soil layers. The bulk density of the substrates in different eroded microhabitats followed the order of shallow gully>rill>bare slope>deposit body, while capillary pore size followed the order of deposit body>bare slope>shallow gully>rill. There were no significant differences in the pH value of different eroded microhabitats, but there were differences in the changes in different soil layers. Electrical conductivity followed the order of deposit body>bare slope>shallow gully>rill, and was higher in the 10—20 cm soil layer than in the 0—10 cm soil layer. The matrix moisture content and capillary water capacity of different eroded microhabitats followed the order of deposit body>bare slope>shallow gully>rill. The matrix moisture content and capillary water capacity of the bare slope and the shallow gully were the lowest on the upper slope, while they were lowest for the rill on the middle slope. [Conclusion] The substrate moisture characteristics of weathered gangue dumps were significantly affected by bulk density and capillary porosity. There were relatively more sand and medium-coarse grain particles in bare slopes and deposit bodies of weathered gangue dumps, and the moisture characteristics were superior. Bare slopes and deposit bodies can provide a safe habitat for vegetation settlement and restoration.http://stbctb.alljournal.com.cn/stbctben/article/abstract/20230404weathered gangue dumpseroded microhabitatsmechanical compositionphysical-chemical propertiesmoisture characteristics |
| spellingShingle | Wang Dongli Liu Yi Zhang Ziqian Zhao Xiaoliang Wang Dong Yang Guang Physical-chemical Characteristics and Moisture Characteristics of Substrates in Different Eroded Microhabitats of Weathered Gangue Dumps Shuitu baochi tongbao weathered gangue dumps eroded microhabitats mechanical composition physical-chemical properties moisture characteristics |
| title | Physical-chemical Characteristics and Moisture Characteristics of Substrates in Different Eroded Microhabitats of Weathered Gangue Dumps |
| title_full | Physical-chemical Characteristics and Moisture Characteristics of Substrates in Different Eroded Microhabitats of Weathered Gangue Dumps |
| title_fullStr | Physical-chemical Characteristics and Moisture Characteristics of Substrates in Different Eroded Microhabitats of Weathered Gangue Dumps |
| title_full_unstemmed | Physical-chemical Characteristics and Moisture Characteristics of Substrates in Different Eroded Microhabitats of Weathered Gangue Dumps |
| title_short | Physical-chemical Characteristics and Moisture Characteristics of Substrates in Different Eroded Microhabitats of Weathered Gangue Dumps |
| title_sort | physical chemical characteristics and moisture characteristics of substrates in different eroded microhabitats of weathered gangue dumps |
| topic | weathered gangue dumps eroded microhabitats mechanical composition physical-chemical properties moisture characteristics |
| url | http://stbctb.alljournal.com.cn/stbctben/article/abstract/20230404 |
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