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Volume 14
Issue 2
10.3390/f14020221
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Article

Coupling Relationship between Soil Organic Carbon Storage and Soil Water Storage in Abandoned Economic Forests in the Loess Hilly Areas

by
Ting Xiang
1,
Rui Gao
1,
Fangfang Qiang
1,
Ni Yang
1,
Guangquan Liu
2,*,
Changhai Liu
1,* and
Ning Ai
1,*
1
College of Life Science, Yan’an University, Yan’an 716000, China
2
China Institute of Water Resources and Hydropower Research, Beijing 100038, China
*
Authors to whom correspondence should be addressed.
Forests 2023, 14(2), 221; https://doi.org/10.3390/f14020221
Submission received: 26 December 2022 / Revised: 19 January 2023 / Accepted: 20 January 2023 / Published: 24 January 2023
(This article belongs to the Special Issue Ecological and Anthropogenic Drivers of Forest Regeneration and Afforestation)
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Abstract

The spatial distribution characteristics of soil organic carbon storage (SOCS) and soil water storage (SWS) and the factors that influence these parameters were compared and analyzed for different economic forests under varying land use practices in the study area with the same abandonment years. The widely distributed abandoned mountain jujube and apple forests at the Qijiashan jujube experimental demonstration base in Yanchuan County were the research field, and grassland was the control. The results show that (1) SOCS and SWS accumulated abundantly in the deep layer (below 100 cm) compared to the highest layer, accounting for 60.63% and 64.63%. (2) After abandonment, the SOCS and SWS were different across vegetation types and under different land preparation methods. In the study area, the SWS showed a comparative advantage compared to the SOCS. The trade-off for different vegetation types suggests that it was the highest for grassland (0.39), while the lowest for jujube (0.16). Under different land preparation methods, the RMSE values of the level terrace grassland and undisturbed slope with apple trees were the highest, while those of jujube trees were the lowest. (3) Environmental factors exerted a certain influence on different vegetation types and varying land preparation methods after abandonment. Apart from the interaction between SOCS and SWS, chemical indicators showed the greatest impact on the abandoned grassland and the SOCS of level terraces.
Keywords: abandoned economic forest; soil organic carbon; soil moisture; trade-off analysis; loess hilly areas abandoned economic forest; soil organic carbon; soil moisture; trade-off analysis; loess hilly areas

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MDPI and ACS Style

Xiang, T.; Gao, R.; Qiang, F.; Yang, N.; Liu, G.; Liu, C.; Ai, N. Coupling Relationship between Soil Organic Carbon Storage and Soil Water Storage in Abandoned Economic Forests in the Loess Hilly Areas. Forests 2023, 14, 221. https://doi.org/10.3390/f14020221

AMA Style

Xiang T, Gao R, Qiang F, Yang N, Liu G, Liu C, Ai N. Coupling Relationship between Soil Organic Carbon Storage and Soil Water Storage in Abandoned Economic Forests in the Loess Hilly Areas. Forests. 2023; 14(2):221. https://doi.org/10.3390/f14020221

Chicago/Turabian Style

Xiang, Ting, Rui Gao, Fangfang Qiang, Ni Yang, Guangquan Liu, Changhai Liu, and Ning Ai. 2023. "Coupling Relationship between Soil Organic Carbon Storage and Soil Water Storage in Abandoned Economic Forests in the Loess Hilly Areas" Forests 14, no. 2: 221. https://doi.org/10.3390/f14020221

APA Style

Xiang, T., Gao, R., Qiang, F., Yang, N., Liu, G., Liu, C., & Ai, N. (2023). Coupling Relationship between Soil Organic Carbon Storage and Soil Water Storage in Abandoned Economic Forests in the Loess Hilly Areas. Forests, 14(2), 221. https://doi.org/10.3390/f14020221

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