[1]汪龙,王思楚,盛婧,等.稻田周丛生物对小麦秸秆腐解和养分释放的影响[J].江苏农业学报,2026,42(04):736-744.[doi:doi:10.3969/j.issn.1000-4440.2026.04.010]
　WANG Long,WANG Sichu,SHENG Jing,et al.Effects of periphyton on wheat straw decomposition and nutrient release in rice paddies[J].,2026,42(04):736-744.[doi:doi:10.3969/j.issn.1000-4440.2026.04.010]
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稻田周丛生物对小麦秸秆腐解和养分释放的影响()

江苏农业学报[ISSN:1006-6977/CN:61-1281/TN]

卷:
42
期数:
2026年04期
页码:
736-744
栏目:
耕作栽培·资源环境
出版日期:
2026-04-30

文章信息/Info

Title:
Effects of periphyton on wheat straw decomposition and nutrient release in rice paddies
作者:
汪龙1; 2; 王思楚2; 3; 盛婧2; 3; 杜道林1
(1.江苏大学环境与安全工程学院,江苏镇江212013；2.江苏省农业科学院农业资源与环境研究所,江苏南京210014；3.江苏省农业生物多样性培育与利用研究中心,江苏南京210014)
Author(s):
WANG Long1; 2; WANG Sichu2; 3; SHENG Jing2; 3; DU Daolin1
(1.School of Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China;2.Institute of Agricultural Resources and Environment, Jiangsu Academy of Agriculture Sciences, Nanjing 210014, China;3.Jiangsu Agricultural Biodiversity Cultivation and Utilization Research Center, Nanjing 210014, China)
关键词:
周丛生物; 秸秆还田; 秸秆腐解; 土壤微生物
Keywords:
periphyton; straw returning; straw decomposition; soil microorganisms
分类号:
X71; S141.4
DOI:
doi:10.3969/j.issn.1000-4440.2026.04.010
文献标志码:
A
摘要:
秸秆还田是培肥土壤地力的重要措施,但还田秸秆腐解周期长、碳损失率高。为明确周丛生物对长江中下游稻麦轮作系统中小麦秸秆腐解过程的影响,本研究通过设置秸秆还田处理(S)、周丛生物处理(PB)和秸秆还田+周丛生物处理(SPB),分析周丛生物对小麦秸秆腐解速率、养分释放速率和土壤碳、氮含量的影响。结果表明,SPB处理小麦秸秆快速腐解期比S处理延长5 d；腐解处理后40 d, SPB处理小麦秸秆累积腐解率比S处理提升7.84%,但处理后130 d,小麦秸秆腐解率无明显差异。秸秆腐解0～60 d,SPB处理小麦秸秆累积碳释放率总体高于S处理,腐解40 d,SPB处理秸秆碳累积释放率较S处理提高4.61个百分点；秸秆腐解30～60 d,SPB处理秸秆氮累积释放率低于S处理,腐解40 d,SPB处理秸秆氮累积释放率较S处理下降2.15个百分点。秸秆腐解130 d时,SPB处理土壤总有机碳含量比S处理增加9.54%。腐解20 d时，SPB处理土壤枯草芽孢杆菌相对丰度及纤维素酶活性显著高于S处理。本研究结果表明,周丛生物能促进秸秆快速腐解,加快腐解初期碳释放、减缓中期氮释放,并促进秸秆养分的固定和利用。
Abstract:
Straw returning is an important measure to improve soil fertility, but the returned straw has long decomposition cycle and high carbon loss rate. To clarify the effect of periphyton on the decomposition process of wheat straw in rice-wheat rotation system in the middle and lower reaches of the Yangtze River, this study analyzed the effects of periphyton on wheat straw decomposition rate, nutrient release rate and soil carbon content and nitrogen content by setting straw returning treatment (S), periphyton treatment (PB) and straw returning + periphyton treatment (SPB). The results showed that the rapid decomposition period of wheat straw treated with SPB was five days longer than that of S treatment. After 40 days of treatment, the cumulative decomposition rate of wheat straw treated with SPB was 7.84% higher than that of S treatment, but there was no significant difference in the decomposition rate of wheat straw after 130 days of treatment. The cumulative carbon release rate of wheat straw (0-60 d) in SPB treatment was higher than that in S treatment. After 40 days of decomposition, the cumulative carbon release rate of wheat straw in SPB treatment was 4.61 percentage points higher than that in S treatment. The cumulative release rate of straw nitrogen (30-60 d) in SPB treatment was lower than that in S treatment. After 40 days of decomposition, the cumulative release rate of straw nitrogen in SPB treatment decreased by 2.15 percentage points compared with S treatment. After 130 days of straw decomposition, the soil total organic carbon content of SPB treatment was 9.54% higher than that of S treatment. After 20 days of straw decomposition, the relative abundance of Bacillus subtilis and cellulase activity in SPB treatment were significantly higher than those in S treatment. The results of this study showed that periphyton could promote the rapid decomposition of straw, accelerate the release of carbon in the early stage of decomposition, slow down the release of nitrogen in the middle stage, and increase the fixation and utilization of straw nutrients.

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备注/Memo

备注/Memo:
收稿日期：2025-05-09基金项目：江苏省自然科学基金项目(BK20230748)；国家自然科学基金项目(42307399)；江苏省农业科技自主创新基金项目[CX(23)3105]作者简介：汪龙(2000-),男,安徽黄山人，硕士研究生,主要研究方向为农田土壤固碳减排。(E-mail)2222209061@stmail.ujs.edu.cn 通讯作者：王思楚,(E-mail)sichuwang@jaas.ac.cn;盛婧,(E-mail)nkysj@hotmail.com
更新日期/Last Update: 2026-05-11