The Differences in Water Repellency in Root Mat (Biomat) and Soil Horizons of Thinned and Non-thinned <i>Chamaecyparis obtusa</i> (Siebold et Zucc.) Endl. Plantations
Water repellency (WR) is one cause of root mat (biomat) flow and soil surface runoff in dense <i>Chamaecyparis obutsa</i> (Siebold et Zucc.) Endl. plantations. However, the changes in WR of biomat and soil horizons are unclear in the thinned <i>C. obtusa</i> plantations. This...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-01-01
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| Series: | Forests |
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| Online Access: | https://www.mdpi.com/1999-4907/14/2/210 |
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| author | Moein Farahnak Takanori Sato Yuya Otani Koichiro Kuraji Toko Suzaki |
| author_facet | Moein Farahnak Takanori Sato Yuya Otani Koichiro Kuraji Toko Suzaki |
| author_sort | Moein Farahnak |
| collection | DOAJ |
| description | Water repellency (WR) is one cause of root mat (biomat) flow and soil surface runoff in dense <i>Chamaecyparis obutsa</i> (Siebold et Zucc.) Endl. plantations. However, the changes in WR of biomat and soil horizons are unclear in the thinned <i>C. obtusa</i> plantations. This study compares the WR of biomat and soil horizons in the thinned and non-thinned <i>C. obtusa</i> plantations by considering the water content and surface temperature of biomat and soil from July 2021 to June 2022. We selected one plot in each thinned and non-thinned area in a catchment at Obora Experimental Forest in Japan. Our results showed that the 40% thinned plot lacked a biomat horizon, whereas the non-thinned plot had a ca. 3 cm depth of biomat. The biomat WR of the non-thinned plot (none to very strong) was higher than the soil WR of the thinned plot (none to strong). There was no relationship between WR and both water content and surface temperature of biomat and/or soil in either thinned or non-thinned plots. Our findings show that the biomat horizon had an essential role in the severity of WR in <i>C. obtusa</i> plantations. The lack of biomat after thinning could substantially impact soil surface hydrology. |
| first_indexed | 2024-03-11T08:50:12Z |
| format | Article |
| id | doaj.art-c82e291ea8a245389d456b2271f78d4b |
| institution | Directory Open Access Journal |
| issn | 1999-4907 |
| language | English |
| last_indexed | 2024-03-11T08:50:12Z |
| publishDate | 2023-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Forests |
| spelling | doaj.art-c82e291ea8a245389d456b2271f78d4b2023-11-16T20:32:49ZengMDPI AGForests1999-49072023-01-0114221010.3390/f14020210The Differences in Water Repellency in Root Mat (Biomat) and Soil Horizons of Thinned and Non-thinned <i>Chamaecyparis obtusa</i> (Siebold et Zucc.) Endl. PlantationsMoein Farahnak0Takanori Sato1Yuya Otani2Koichiro Kuraji3Toko Suzaki4Ecohydrology Research Institute, The University of Tokyo Forests, Graduate School of Agriculture and Life Sciences, University of Tokyo, Aichi 489-0031, JapanFaculty of Regional Environment Science, Tokyo University of Agriculture, Tokyo 156-8502, JapanEcohydrology Research Institute, The University of Tokyo Forests, Graduate School of Agriculture and Life Sciences, University of Tokyo, Aichi 489-0031, JapanExecutive Office, The University of Tokyo Forests, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, JapanToyota Yahagi River Institute, Aichi 471-0025, JapanWater repellency (WR) is one cause of root mat (biomat) flow and soil surface runoff in dense <i>Chamaecyparis obutsa</i> (Siebold et Zucc.) Endl. plantations. However, the changes in WR of biomat and soil horizons are unclear in the thinned <i>C. obtusa</i> plantations. This study compares the WR of biomat and soil horizons in the thinned and non-thinned <i>C. obtusa</i> plantations by considering the water content and surface temperature of biomat and soil from July 2021 to June 2022. We selected one plot in each thinned and non-thinned area in a catchment at Obora Experimental Forest in Japan. Our results showed that the 40% thinned plot lacked a biomat horizon, whereas the non-thinned plot had a ca. 3 cm depth of biomat. The biomat WR of the non-thinned plot (none to very strong) was higher than the soil WR of the thinned plot (none to strong). There was no relationship between WR and both water content and surface temperature of biomat and/or soil in either thinned or non-thinned plots. Our findings show that the biomat horizon had an essential role in the severity of WR in <i>C. obtusa</i> plantations. The lack of biomat after thinning could substantially impact soil surface hydrology.https://www.mdpi.com/1999-4907/14/2/210biomat<i>Chamaecyparis obtusa</i>surface temperaturewater contentwater repellency |
| spellingShingle | Moein Farahnak Takanori Sato Yuya Otani Koichiro Kuraji Toko Suzaki The Differences in Water Repellency in Root Mat (Biomat) and Soil Horizons of Thinned and Non-thinned <i>Chamaecyparis obtusa</i> (Siebold et Zucc.) Endl. Plantations Forests biomat <i>Chamaecyparis obtusa</i> surface temperature water content water repellency |
| title | The Differences in Water Repellency in Root Mat (Biomat) and Soil Horizons of Thinned and Non-thinned <i>Chamaecyparis obtusa</i> (Siebold et Zucc.) Endl. Plantations |
| title_full | The Differences in Water Repellency in Root Mat (Biomat) and Soil Horizons of Thinned and Non-thinned <i>Chamaecyparis obtusa</i> (Siebold et Zucc.) Endl. Plantations |
| title_fullStr | The Differences in Water Repellency in Root Mat (Biomat) and Soil Horizons of Thinned and Non-thinned <i>Chamaecyparis obtusa</i> (Siebold et Zucc.) Endl. Plantations |
| title_full_unstemmed | The Differences in Water Repellency in Root Mat (Biomat) and Soil Horizons of Thinned and Non-thinned <i>Chamaecyparis obtusa</i> (Siebold et Zucc.) Endl. Plantations |
| title_short | The Differences in Water Repellency in Root Mat (Biomat) and Soil Horizons of Thinned and Non-thinned <i>Chamaecyparis obtusa</i> (Siebold et Zucc.) Endl. Plantations |
| title_sort | differences in water repellency in root mat biomat and soil horizons of thinned and non thinned i chamaecyparis obtusa i siebold et zucc endl plantations |
| topic | biomat <i>Chamaecyparis obtusa</i> surface temperature water content water repellency |
| url | https://www.mdpi.com/1999-4907/14/2/210 |
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