The Relationship between Soil Particle Size Fractions, Associated Carbon Distribution and Physicochemical Properties of Historical Land-Use Types in Newly Formed Reservoir Buffer Strips

Tengfei Yan, Yevheniia Kremenetska, Biyang Zhang, Songlin He, Xinfa Wang, Zelong Yu, Qiang Hu, Xiangpeng Liang, Manyi Fu and Zhen Wang
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Tengfei Yan: Faculty of Agrotechnologies and Natural Resource Management, Sumy National Agrarian University, 40000 Sumy, Ukraine
Yevheniia Kremenetska: Faculty of Agrotechnologies and Natural Resource Management, Sumy National Agrarian University, 40000 Sumy, Ukraine
Biyang Zhang: Department of Forestry, Xinyang Agriculture and Forestry University, Xinyang 464000, China
Songlin He: School of Horticulture Landscape Architecture, Henan Institute of Science and Technology, Xinxiang 453003, China
Xinfa Wang: Faculty of Agrotechnologies and Natural Resource Management, Sumy National Agrarian University, 40000 Sumy, Ukraine
Zelong Yu: Department of Forestry, Xinyang Agriculture and Forestry University, Xinyang 464000, China
Qiang Hu: Department of Forestry, Xinyang Agriculture and Forestry University, Xinyang 464000, China
Xiangpeng Liang: Department of Forestry, Xinyang Agriculture and Forestry University, Xinyang 464000, China
Manyi Fu: Department of Forestry, Xinyang Agriculture and Forestry University, Xinyang 464000, China
Zhen Wang: Department of Forestry, Xinyang Agriculture and Forestry University, Xinyang 464000, China

Sustainability, 2022, vol. 14, issue 14, 1-17

Abstract: Water impoundment reshapes the ecological environment around the bank-line of newly built reservoirs. Therefore, reservoir buffer strips play a disproportionately large role in the maintenance of ecosystem functions and environmental benefits during the early stage of reservoir formation. However, there are gaps in the research on soil particle-size-associated carbon distribution characteristics within different historical land-use types in newly formed reservoir buffer strips. In this study, we focused on soil particle size fractions, aggregate stability, and particle-size-associated carbon distribution characteristics of different historical land-use types of reservoir buffer strips at distance scale (i.e., different distance from the water) after reservoir impoundment in the Chushandian Reservoir, China, and explored the relationship between them. The results showed that the soil texture of abandoned cropland and grassland are classified as silt loam and woodland are classified as sandy loam; different historical land-use types in newly formed reservoir buffer strips showed significant differences in soil aggregate stability after reservoir impoundment; a distance scale was used to measure these differences, which were mainly due to the dry-wet cycles and water submerged condition caused by the buffers’ different distances from water. The newly formed reservoir buffer strips underwent corresponding changes in the particle-size-associated carbon distribution characteristics after reservoir impoundment, mainly due to the turnover property of different soil particles combined with organic carbon. Reservoir impoundment accelerates the turnover of silt particle and associated nutrients in soils of historical land-use types in newly formed reservoir buffer strips; turnover may be mediated mainly by microbial biomass.

Keywords: dam construction; silt particle; Chushandian reservoir; turnover property; carbon storage capacity (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
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