PDF Download

[1]MIN Xuxu,XIAO Lie,LI Peng,et al.Effects of Composted Sludge Addition on Soil Unit Organic Carbon Mineralization and Its Temperature Sensitivity[J].Research of Soil and Water Conservation,2023,30(04):130-136.[doi:10.13869/j.cnki.rswc.2023.04.027.]

Copy

Effects of Composted Sludge Addition on Soil Unit Organic Carbon Mineralization and Its Temperature Sensitivity

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 30 Number of periods: 2023 04 Page number: 130-136 Column: Public date: 2023-06-10

Title:: Effects of Composted Sludge Addition on Soil Unit Organic Carbon Mineralization and Its Temperature Sensitivity

Author(s):: MIN Xuxu, XIAO Lie, LI Peng, LIU Ran, ZHAO Meng, LIU Fangyuan; (State Key Laboratory of Eco-hydraulics in Northwest Arid Region, Xi'an University of Technology, Xi'an 710048, China)

Keywords:: composed sludge; soil organic carbon mineralization; soil organic carbon mineralization potential; temperature sensitivity

CLC:: S157.4⁺1

DOI:: 10.13869/j.cnki.rswc.2023.04.027.

Abstract:: [Objective] The main controlling factors of soil organic carbon mineralization and its temperature sensitivity(Q₁₀)for municipal sludge resource utilization and soil carbon pool stability after sludge compost application were revealed, which provided theoretical support for municipal sludge treatment and soil organic carbon sequestration. [Methods] In the present study, different doses of composted sludge(0, 2.0%, 5.0%, 10.0%, 15.0%, and 20.0%)were added to the degraded grassland soil collected from the loess hilly area, and the soil organic carbon mineralization rates under different incubation temperatures(15℃, 25℃ and 35℃)were measured. The effects of composted sludge addition on soil organic carbon mineralization characteristics and Q₁₀ values were discussed. [Results](1)Compared with CK, the soil organic carbon mineralization rate significantly(p<0.01)increased with composted sludge addition doses at the initial stage of cultivation, and then it rapidly decreased until it reached to a stable value. The cumulative soil organic carbon mineralization under the composed sludge addition treatments were 1.6～4.2 times greater than that of CK. When the composed sludge application doses were between 10.0% and 20.0%, the organic carbon mineralization rate and cumulative mineralization amount had no significant difference.(2)The first-order kinetic equation was used to fit the dynamics of soil organic carbon mineralization with composted sludge addition treatments at different incubation temperatures and achieved good results(R²>0.95). Soil organic carbon mineralization potential(C₀)values ranged from 6.92 to 39.60 mg C/g and the differences were significant(p<0.05)among different treatments. The soil organic carbon mineralization kinetic constant(k)ranged from 0.03/d to 0.12/d, and it was significantly correlated with incubation temperatures(p<0.01).(3)The Q₁₀ values ranged from 1.18 to 2.58 with the composted sludge application doses, and the Q₁₀ reached the maximum value when the application doses reached 10.0%, and then the Q₁₀ values decreased with the doses of the composed sludge addition. [Conclusion] When the composted sludge application doses are at 10.0%～20.0%, the content of soil organic carbon can obviously increase, inhibit the re-mineralization of soil organic carbon, effectively adjust soil Q₁₀, and ensure the relative stability of soil carbon pool, which is beneficial for the sequestration of soil organic carbon.

References:: [1] 郭晓娜,陈睿山,李强,等. IPBES专题评估中的土地退化过程,机制与影响[J].生态学报,2019,39(17):1-10.
[2] 姚珂涵.城市污泥添加对土壤养分动态的调控机制[D].西安:西安理工大学,2021.
[3] 杨雨浛.城市污泥堆肥对土壤温室气体排放的影响研究[D].重庆:西南大学,2018.
[4] 邬建红,潘剑君,葛序娟,等.不同土地利用方式下土壤有机碳矿化及其温度敏感性[J].水土保持学报,2015,29(3):130-135.
[5] Nkoa R. Agricultural benefits and environmental risks of soil fertilization with anaerobic digestates: a review[J]. Agronomy for Sustainable Development, 2014,34:473-492.
[6] 郭康莉,冀拯宇,刘晓等.无害化污泥堆肥施用量对沙质潮土土壤活性有机碳组分的影响[J].农业环境科学学报,2018,37(1):105-113.
[7] 吴杰,常会庆,王启震.堆肥污泥连续施用对酸性砂土肥力影响及养分积累风险[J].核农学报,2021,35(11):2606-2615.
[8] 仝少伟,时连辉,刘登民,等.不同有机废弃物堆肥对土壤有机碳库及酶活性的影响[J].水土保持学报,2013,27(3):253-258.
[9] 俄胜哲,时小娟,车宗贤,等.有机物料对灌漠土结合态腐殖质及其组分的影响[J].土壤学报,2019,56(6):1436-1448.
[10] 冀拯宇,周吉祥,郭康莉,等.连续施用无害化污泥堆肥对沙质潮土肥力的影响[J].植物营养与肥料学报,2018,24(5):1276-1284.
[11] 牛明杰,郑国砥,朱彦莉,等.城市污泥与调理剂混合堆肥过程中有机质组分的变化[J].植物营养与肥料学报,2016,22(4):1016-1023.
[12] 尤俊坚,谢凯旋,孙蕾,等.城市污泥生物质炭对豫东黄泛平原风沙土耕地土壤有机碳矿化影响[J].水土保持研究,2019,26(6):12-17.
[13] Zhang X, Zhang Q, Zhan L, et al. Biochar addition stabilized soil carbon sequestration by reducing temperature sensitivity of mineralization and altering the microbial community in a greenhouse vegetable field[J]. Journal of Environmental Management, 2022,313.DOI:10.1016/J.JENVMAN.2022.114972.
[14] Shi P, Li Z, Li P, et al. Trade-offs among ecosystem services after vegetation restoration in China's Loess Plateau[J]. Natural Resources Research, 2021,30(3):2703-2713.
[15] Xiao L, Liu G, Li P, et al. Ecological stoichiometry of plant-soil-enzyme interactions drives secondary plant succession in the abandoned grasslands of Loess Plateau, China[J]. Catena, 2021,202.DOI:10.1016/J.CATENA.2021.105302.
[16] 张凤.以浮石为调理剂的脱水污泥好氧堆肥效果研究[D].西安:西安建筑科技大学,2018.
[17] 张影,刘星,任秀娟,等.秸秆及其生物炭对土壤碳库管理指数及有机碳矿化的影响[J].水土保持学报,2019,33(3):153-159,165.
[18] 张曾,宋成芳,单胜道,等.猪粪水热炭对土壤有机碳矿化及土壤性质的影响[J].浙江农林大学学报,2021,38(4):765-773.
[19] Kimetu J M, Lehmann J, Kinyangi J M, et al. Soil organic C stabilization and thresholds in C saturation[J]. Soil Biology and Biochemistry, 2009,41(10):2100-2104.
[20] 吴健利,刘梦云,赵国庆,等.黄土台塬土地利用方式对土壤有机碳矿化及温室气体排放的影响[J].农业环境科学学报,2016,35(5):1006-1015.
[21] 张鹏,李涵,贾志宽,等.秸秆还田对宁南旱区土壤有机碳含量及土壤碳矿化的影响[J].农业环境科学学报,2011,30(12):2518-2525.
[22] 郭丽欣,王越,杜雨婷,等.生物炭与秸秆配施对设施土壤有机碳矿化及理化性质的影响[J].北京农学院学报,2022,37(1):43-50.
[23] 赵熙君,冷雪梅,张旭辉,等.生物质炭施用对重金属污染水稻土有机碳矿化的影响[J].南京农业大学学报,2020,43(3):468-476.
[24] 陈灿灿,马红亮,高人,等.施氮与凋落物去除影响下中亚热带阔叶林土壤氮素矿化潜势和硝化潜势研究[J].生态环境学报,2021,30(3):503-511.
[25] Thiessen S, Gleixner G, Wutzler T, et al. Both priming and temperature sensitivity of soil organic matter decomposition depend on microbial biomass: An incubation study[J]. Soil Biology and Biochemistry, 2013,57:739-748.
[26] Van Groenigen K J, Qi X, Osenberg C W, et al. Faster decomposition under increased atmospheric CO₂ limits soil carbon storage[J]. Science, 2014,344(6183):508-509.
[27] Marinari S, Lagomarsino A, Moscatelli M C, et al. Soil carbon and nitrogen mineralization kinetics in organic and conventional three-year cropping systems[J]. Soil and Tillage Research, 2010,109(2):161-168.
[28] Hua W, Luo P, An N, et al. Manure application increased crop yields by promoting nitrogen use efficiency in the soils of 40-year soybean-maize rotation[J]. Scientific Reports, 2020,10(1):1-10.
[29] 陈颖,刘玉学,陈重军,等.生物炭对土壤有机碳矿化的激发效应及其机理研究进展[J].应用生态学报,2018,29(1):314-320.
[30] 栾军伟,刘世荣.土壤呼吸的温度敏感性:全球变暖正负反馈的不确定因素[J].生态学报,2012,32(15):4902-4913.
[31] Liu H. Thermal response of soil microbial respiration is positively associated with labile carbon content and soil microbial activity[J]. Geoderma, 2013,193:275-281.
[32] He N P, Wang R M, Gao Y, et al. Changes in the temperature sensitivity of SOM decomposition with grassland succession: implications for soil C sequestration[J]. Ecology and Evolution, 2013,3(15):5045-5054.

Similar References:

Memo

Last Update: 2023-06-10