Soil respiration responses to soil physiochemical properties in urban different green-lands: A case study in Hefei, China
Soil respiration (RS) is an important carbon budget in urban ecosystem. In order to better understand the limiting factors affecting urban soil respiration, we measured RS, soil temperature, soil moisture content, soil organic carbon (SOC), nitrogen (N), C/N, dissolved organic carbon (DOC), microbia...
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KeAi Communications Co., Ltd.
2016-09-01
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| Series: | International Soil and Water Conservation Research |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2095633916300508 |
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| author | Xiao Tao Jun Cui Yunze Dai Zefu Wang Xiaoniu Xu |
| author_facet | Xiao Tao Jun Cui Yunze Dai Zefu Wang Xiaoniu Xu |
| author_sort | Xiao Tao |
| collection | DOAJ |
| description | Soil respiration (RS) is an important carbon budget in urban ecosystem. In order to better understand the limiting factors affecting urban soil respiration, we measured RS, soil temperature, soil moisture content, soil organic carbon (SOC), nitrogen (N), C/N, dissolved organic carbon (DOC), microbial biomass carbon (MBC), NO3−-N, NH4+-N, P and fine root biomass from twelve sites of four green-land types (campus green-land, park green-land, residential green-land and factory green-land) for two years in built-up areas of Hefei, China. The results showed that average annual RS was significantly lower in the residential green-land (1.35 μmol m−2 s−1) than in the campus (2.64 μmol m−2 s−1) and park (2.51 μmol m−2 s−1) green-lands. RS positively increased with soil temperature at the range of 2.01–31.26 °C, and Q10 values ranged from 1.48 to 1.65 in the four types of green-lands. Soil moisture (18–25%) showed significantly positive correlation with soil respiration (P<0.01). When precipitation occurred frequently in wet summer, soil moisture served as the dominant control on RS variations. RS was positively related with SOC, NO3−-N, P and fine root biomass (diameter <2 mm), while negatively correlated with DOC at 0–10 cm depth. Our results indicate that decreasing RS may be an optional way to increase carbon sequestration potential for urban ecosystem, and this can be achieved by regulating green-land types and applying appropriate soil nutrients maintenance practices. |
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| id | doaj.art-79dfe3c09e3c4ea3bf9cff570d63f7a4 |
| institution | Directory Open Access Journal |
| issn | 2095-6339 |
| language | English |
| last_indexed | 2024-03-07T17:30:12Z |
| publishDate | 2016-09-01 |
| publisher | KeAi Communications Co., Ltd. |
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| series | International Soil and Water Conservation Research |
| spelling | doaj.art-79dfe3c09e3c4ea3bf9cff570d63f7a42024-03-02T18:09:43ZengKeAi Communications Co., Ltd.International Soil and Water Conservation Research2095-63392016-09-014322422910.1016/j.iswcr.2016.08.001Soil respiration responses to soil physiochemical properties in urban different green-lands: A case study in Hefei, ChinaXiao TaoJun CuiYunze DaiZefu WangXiaoniu XuSoil respiration (RS) is an important carbon budget in urban ecosystem. In order to better understand the limiting factors affecting urban soil respiration, we measured RS, soil temperature, soil moisture content, soil organic carbon (SOC), nitrogen (N), C/N, dissolved organic carbon (DOC), microbial biomass carbon (MBC), NO3−-N, NH4+-N, P and fine root biomass from twelve sites of four green-land types (campus green-land, park green-land, residential green-land and factory green-land) for two years in built-up areas of Hefei, China. The results showed that average annual RS was significantly lower in the residential green-land (1.35 μmol m−2 s−1) than in the campus (2.64 μmol m−2 s−1) and park (2.51 μmol m−2 s−1) green-lands. RS positively increased with soil temperature at the range of 2.01–31.26 °C, and Q10 values ranged from 1.48 to 1.65 in the four types of green-lands. Soil moisture (18–25%) showed significantly positive correlation with soil respiration (P<0.01). When precipitation occurred frequently in wet summer, soil moisture served as the dominant control on RS variations. RS was positively related with SOC, NO3−-N, P and fine root biomass (diameter <2 mm), while negatively correlated with DOC at 0–10 cm depth. Our results indicate that decreasing RS may be an optional way to increase carbon sequestration potential for urban ecosystem, and this can be achieved by regulating green-land types and applying appropriate soil nutrients maintenance practices.http://www.sciencedirect.com/science/article/pii/S2095633916300508Urban soilSoil respirationGreen-land typeSoil propertiesEnvironmental factors |
| spellingShingle | Xiao Tao Jun Cui Yunze Dai Zefu Wang Xiaoniu Xu Soil respiration responses to soil physiochemical properties in urban different green-lands: A case study in Hefei, China International Soil and Water Conservation Research Urban soil Soil respiration Green-land type Soil properties Environmental factors |
| title | Soil respiration responses to soil physiochemical properties in urban different green-lands: A case study in Hefei, China |
| title_full | Soil respiration responses to soil physiochemical properties in urban different green-lands: A case study in Hefei, China |
| title_fullStr | Soil respiration responses to soil physiochemical properties in urban different green-lands: A case study in Hefei, China |
| title_full_unstemmed | Soil respiration responses to soil physiochemical properties in urban different green-lands: A case study in Hefei, China |
| title_short | Soil respiration responses to soil physiochemical properties in urban different green-lands: A case study in Hefei, China |
| title_sort | soil respiration responses to soil physiochemical properties in urban different green lands a case study in hefei china |
| topic | Urban soil Soil respiration Green-land type Soil properties Environmental factors |
| url | http://www.sciencedirect.com/science/article/pii/S2095633916300508 |
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