[1]XIONG Xiaoling,REN Yinbang,L Maokui,et al.Distribution Characteristics of Soil Organic Carbon and Total Nitrogen Storage in Typical Forest Soils at Different Altitudes in Wuyishan Mountain[J].Research of Soil and Water Conservation,2022,29(04):83-88.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
29
Number of periods:
2022 04
Page number:
83-88
Column:
Public date:
2022-06-20
- Title:
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Distribution Characteristics of Soil Organic Carbon and Total Nitrogen Storage in Typical Forest Soils at Different Altitudes in Wuyishan Mountain
- Author(s):
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XIONG Xiaoling1,2, REN Yinbang1,2, LÜ Maokui1,2, LI Xiaojie1,2, NIE Yangyi1,2, XIE Jinsheng1,2
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(1.School of Geographical Sciences, Fujian Normal University, Fuzhou 350007, China; 2.Key Laboratory for Humid Subtropical Eco-geographical Processes, Ministry of Education,Fujian Normal University, Fuzhou 350007, China)
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- Keywords:
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altitude; forest soil; carbon and nitrogen content; carbon and nitrogen storage; Wuyishan Mountain
- CLC:
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S718.5
- DOI:
-
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- Abstract:
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In order to explore the distribution characteristics of forest soil carbon and nitrogen storage in Wuyishan Mountain, typical forest soils at different altitudes(600, 1 000, 1 400 m)were selected as research objects. The changes of soil organic carbon and total nitrogen contents and reserves with altitude were studied, and the factors affecting the changes of soil organic carbon and total nitrogen reserves were analyzed. The results show that: with the increase of altitude, the changes of soil organic carbon and total nitrogen contents in 0—5 cm soil layer and 5—10 cm soil layer were different; the changes of soil carbon and nitrogen contents in 5—10 cm soil layer were more obvious with the increase of altitude, while the soil carbon and nitrogen contents in 0—5 cm soil layer were higher at 1 000 m altitude; soil C/N at 1 000 m was significantly higher than that at 1 400 m and 600 m; soil organic carbon and total nitrogen storage at 1 400 m were significantly higher than those at 1 000 m and 600 m; the variation ranges of soil carbon and nitrogen storage at high altitude were significantly greater than those at low altitude, and there was no significant difference between the two soil layers; correlation analysis and RDA analysis showed that fine root C/N and soil temperature were the dominant factors affecting soil organic carbon and total nitrogen storages. In conclusion, the distribution of soil organic carbon and total nitrogen does not increase linearly with the elevation, but is affected by the climatic and vegetation characteristics and soil conditions. Soil carbon and nitrogen storage at high altitude is more sensitive to climate change.