Cattle manure hydrochar posed a higher efficiency in elevating tomato productivity and decreasing greenhouse gas emissions than plant straw hydrochar in a coastal soil
文献类型: 外文期刊
第一作者: Kong, Qingxian
作者: Kong, Qingxian;Cheng, Yadong;Xie, Chenghao;Yuan, Yuan;Yu, Xueyang;Yao, Hui;You, Xiangwei;Zhang, Chengsheng;Li, Yiqiang;Wang, Xiao;Cheng, Yadong;Yuan, Yuan;Yu, Xueyang;Yao, Hui;You, Xiangwei;Zhang, Chengsheng;Li, Yiqiang;Wang, Xiao;Cheng, Yadong;Yuan, Yuan;Yu, Xueyang;Yao, Hui;You, Xiangwei;Zhang, Chengsheng;Li, Yiqiang;Zheng, Hao;Zheng, Hao;Quan, Yue
作者机构: Chinese Acad Agr Sci, Tobacco Res Inst, Marine Agr Res Ctr, Qingdao 266101, Peoples R China;Natl Ctr Technol Innovat Comprehens Utilizat Sali, Dongying 257300, Peoples R China;Qingdao Key Lab Coastal Saline Alkali Land Resour, Qingdao 266101, Peoples R China;Ocean Univ China, Inst Coastal Environm Pollut Control, Frontiers Sci Ctr Deep Ocean Multispheres & Earth, Key Lab Marine Environm & Ecol,Minist Educ,Coll E, Qingdao 266100, Peoples R China;Qingdao Natl Lab Marine Sci & Technol, Marine Ecol & Environm Sci Lab, Qingdao 266071, Peoples R China;Yanbian Univ, Dept Geog & Marine Sci, Jilin 133000, Peoples R China
关键词: Global warming potential; Fruit quality; Phosphorus availability; Denitrification; Methanogenesis; Hydrochar
期刊名称:SCIENCE OF THE TOTAL ENVIRONMENT ( 2022影响因子:9.8; 五年影响因子:9.6 )
ISSN: 0048-9697
年卷期: 2024 年 912 卷
收录情况: SCI
摘要: Rehabilitation of degraded soil health using high-performance and sustainable measures are urgently required for restoring soil primary productivity and mitigating greenhouse gas (GHG) emission of coastal ecosystems. However, the effect of livestock manure derived hydrochar on GHG emission and plant productivity in the coastal salt-affected soils, one of blue carbon (C) ecosystems, was poorly understood. Therefore, a cattle manure hydrochar (CHC) produced at 220 C-degrees was prepared to explore its effects and mechanisms on CH4 and N2O emissions and tomato growth and fruit quality in a coastal soil in comparison with corresponding hydrochars derived from plant straws, i.e., sesbania straw hydrochars (SHC) and reed straw hydrochars (RHC) using a 63-day soil column experiment. The results showed that CHC posed a greater efficiency in reducing the global warming potential (GWP, 54.6 % (36.7 g/m2) vs. 45.5-45.6 % (22.2-30.6 g/m(2))) than those of RHC and SHC. For the plant growth, three hydrochars at 3 % (w/w) significantly increased dry biomass of tomato shoot and fruit by 12.4-49.5 % and 48.6-165 %, respectively. Moreover, CHC showed the highest promotion effect on shoot and fruit dry biomass of tomato, followed by SHC approximate to RHC. Application of SHC, CHC and RHC significantly elevated the tomato sweetness compared with CK, with the order of CHC (54.4 %) > RHC (35.6 %) > SHC (22.1 %). Structural equation models revealed that CHC-depressed denitrification and methanogen mainly contributed to decreased GHG emissions. Increased soil phosphorus availability due to labile phosphorus supply from CHC dominantly accounted for elevated tomato growth and fruit production. Comparably, SHC-altered soil properties (e.g., decreased pH and increased total carbon content) determined variations of GHG emission and tomato growth. The findings provide the high-performance strategies to enhance soil primary productivity and mitigate GHG emissions in the blue C ecosystems.
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