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Carbon assimilation and sequestration by industrial crop Jerusalem artichoke in coastal saline land

文献类型： 外文期刊

作者： Chen, Manxia 1 ; Xu, Zhikun 1 ; Zhao, Jianjing 1 ; Chen, Yongwen 1 ; Chen, Sujuan 1 ; Gao, Xiumei 1 ; Long, Xiaohua 1 ; S 1 ;

作者机构： 1.Nanjing Agr Univ, Coll Resources & Environm Sci, Nanjing 210095, Jiangsu, Peoples R China

2.JAAS, Inst Agr Resources & Environm, Key Lab Agr Environm Lower Reaches Yangtze River, Salt Soil Agr Ctr, Nanjing 210014, Jiangsu, Peoples R China

3.Yancheng Teachers Univ, Jiangsu Synthet Innovat Ctr Coastal Bioagr, Jiangsu Key Lab Bioresources Saline Soils, Yancheng 224002, Peoples R China

4.Qingdao Univ Sci & Technol, Coll Environm & Safety Engn, Qingdao 266000, Shandong, Peoples R China

关键词： Jerusalem artichoke; Soil organic carbon; Carbon reserves; Biomass

期刊名称：ACTA PHYSIOLOGIAE PLANTARUM （ 影响因子：2.354； 五年影响因子：2.711 ）

ISSN： 0137-5881

年卷期： 2019 年 41 卷 11 期

页码：

收录情况： SCI

摘要： Understanding the role of Jerusalem artichoke grown in low fertility coastal saline soil in carbon sequestration is important for characterizing the relationship between soil use in agriculture production and carbon sequestration. In the present study, the mechanisms of photosynthesis and carbon distribution were studied in three saline soils with different salt contents (Xinyang 0.6-1.0 g salt/kg; Dafeng 1.5-2.4 g salt/kg; Shuntai 3.8-4.5 g salt/kg) by characterizing the biomass production, carbon storage, and carbon sequestration in the soil under Jerusalem artichoke. The biomass production and carbon storage during the growth cycle of Jerusalem artichoke were significantly higher in Dafeng than the other plots. The highest carbon sequestration was found in the Xinyang plot. The organic matter content in the rhizosphere soil was 28-44% higher than that in the non-rhizosphere soil. The soil organic carbon content in the rhizosphere soil was higher than that in the non-rhizosphere soil. High soil salinities decreased the carbon storage of Jerusalem artichoke. Carbon sequestration in soil decreased with the increase in soil salinity.

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