| Responses of plant community to the linkages in plant-soil C:N:P stoichiometry during secondary succession of abandoned farmlands,China |
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| 作者姓名： | LIU Weichao FU Shuyue YAN Shengji REN Chengjie WU Shaojun DENG Jian LI Boyong HAN Xinhui YANG Gaihe |
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| 作者单位： | College of Agronomy;Research Center of Recycle Agricultural Engineering and Technology of Shaanxi Province;School of Life Science |
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| 基金项目： | This work was funded by the National Natural Science Foundation of China(41877543,41571501). |
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| 摘 要： | Succession is one of the central themes of ecology;however,the relationship between aboveground plant communities and underground soils during secondary succession remains unclear.In this study,we investigated the composition of plant community,plant-soil C:N:P stoichiometry and their relationships during secondary succession after the abandonment of farmlands for 0,10,20,30,40 and 50 a in China,2016.Results showed that the composition of plant communities was most diverse in the farmlands after secondary succession for 20 and 50 a.Soil organic carbon and total nitrogen contents slightly decreased after secondary succession for 30 a,but both were significantly higher than those of control farmland(31.21%-139.10%and 24.24%-121.21%,respectively).Moreover,C:N ratios of soil and microbe greatly contributed to the changes in plant community composition during secondary succession of abandoned farmlands,explaining 35.70%of the total variation.Particularly,soil C:N ratio was significantly and positively related with the Shannon-Wiener index.This study provides the evidence of synchronous evolution between plant community and soil during secondary succession and C:N ratio is an important linkage between them.
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| 关 键 词： | C:N ratio soil NUTRIENT PLANT community restoration LOESS HILLY region |
Responses of plant community to the linkages in plant-soil C:N:P stoichiometry during secondary succession of abandoned farmlands,China |
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| LIU Weichao,FU Shuyue,YAN Shengji,REN Chengjie,WU Shaojun,DENG Jian,LI Boyong,HAN Xinhui,YANG Gaihe.Responses of plant community to the linkages in plant-soil C:N:P stoichiometry during secondary succession of abandoned farmlands,China[J].Journal of Arid Land,2020,12(2):215-226. |
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| Authors: | LIU Weichao |
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| Institution: | 1. College of Agronomy, Northwest A&F University, Yangling 712100, China;2.Research Center of Recycle Agricultural Engineering and Technology of Shaanxi Province, Yangling 712100, China;3.School of Life Science, Yan'an University, Yan'an 716000, China |
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| Abstract: | Succession is one of the central themes of ecology; however, the relationship between aboveground plant communities and underground soils during secondary succession remains unclear. In this study, we investigated the composition of plant community, plant-soil C:N:P stoichiometry and their relationships during secondary succession after the abandonment of farmlands for 0, 10, 20, 30, 40 and 50 a in China, 2016. Results showed that the composition of plant communities was most diverse in the farmlands after secondary succession for 20 and 50 a. Soil organic carbon and total nitrogen contents slightly decreased after secondary succession for 30 a, but both were significantly higher than those of control farmland (31.21%-139.10% and 24.24%-121.21%, respectively). Moreover, C:N ratios of soil and microbe greatly contributed to the changes in plant community composition during secondary succession of abandoned farmlands, explaining 35.70% of the total variation. Particularly, soil C:N ratio was significantly and positively related with the Shannon-Wiener index. This study provides the evidence of synchronous evolution between plant community and soil during secondary succession and C:N ratio is an important linkage between them. |
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| Keywords: | C:N ratio soil nutrient plant community restoration loess hilly region |
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