[1]孙果丽,何苏南,陈环宇,等.生物降解地膜覆盖对滨海盐碱耕地土壤环境、碳固存和大豆产量的影响[J].江苏农业学报,2026,42(01):79-89.[doi:doi:10.3969/j.issn.1000-4440.2026.01.009]
　SUN Guoli,HE Sunan,CHEN Huanyu,et al.Effects of biodegradable plastic film mulching on soil environment, carbon sequestration and soybean yield in coastal saline-alkali farmland[J].,2026,42(01):79-89.[doi:doi:10.3969/j.issn.1000-4440.2026.01.009]
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生物降解地膜覆盖对滨海盐碱耕地土壤环境、碳固存和大豆产量的影响()

江苏农业学报[ISSN:1006-6977/CN:61-1281/TN]

卷:
42
期数:
2026年01期
页码:
79-89
栏目:
耕作栽培·资源环境
出版日期:
2026-01-31

文章信息/Info

Title:
Effects of biodegradable plastic film mulching on soil environment, carbon sequestration and soybean yield in coastal saline-alkali farmland
作者:
孙果丽1; 何苏南1; 陈环宇1; 郁凯1; 贺亭亭1; 严旋娜2; 徐磊2; 陈爱晶3; 张振华1; 邢锦城1
(1.江苏沿海地区农业科学研究所,江苏盐城224002;2.江苏省农业科学院农业设施与装备研究所,江苏南京210014;3.盐城市耕地质量保护站,江苏盐城224005)
Author(s):
SUN Guoli1; HE Sunan1; CHEN Huanyu1; YU Kai1; HE Tingting1; YAN Xuanna2; XU Lei2; CHEN Aijing3; ZHANG Zhenhua1; XING Jincheng1
(1.Institute of Agricultural Sciences in the Coastal District of Jiangsu Province, Yancheng 224002, China;2.Institute of Agricultural Facilities and Equipment, Jiangsu Academy of Agricultural Sciences,Nanjing 210014, China;3.Yancheng Cultivated Land Quality Protection Station, Yancheng 224005, China)
关键词:
生物降解地膜; 土壤团聚体; 土壤有机碳; 大豆; 盐碱土
Keywords:
biodegradable plastic film; soil aggregate; soil organic carbon; soybean; saline-alkali soil
分类号:
S626.4
DOI:
doi:10.3969/j.issn.1000-4440.2026.01.009
文献标志码:
A
摘要:
为探究不同生物降解地膜覆盖对滨海盐碱地土壤环境、碳固存和大豆产量的影响,本研究设置不覆膜（对照，CK)、聚乙烯低膜覆盖处理(PE)、功能寿命为55～65 d的生物降解地膜覆盖处理(BDM1)、功能寿命为65～75 d的生物降解地膜覆盖处理(BDM2)、功能寿命为75～85 d的生物降解地膜覆盖处理(BDM3)。结果表明,生物降解地膜主要通过调节土壤温湿度影响土壤养分含量。生物降解地膜覆盖处理土壤含盐量和土壤pH值低于对照,土壤平均温度、平均湿度高于对照。BDM2处理土壤有机碳含量和有机碳储量显著高于CK、PE处理、BDM1处理、BDM3处理(P＜0.05)。BDM2处理土壤水稳性团聚体含量、土壤平均重量直径、土壤几何平均直径均显著高于CK、PE处理、BDM1处理、BDM3处理(P＜0.05)。且BDM2处理土壤团聚体分形维数显著低于CK、BDM1处理、BDM3处理(P＜0.05)。PE处理、BDM1处理、BDM2处理、BDM3处理土壤中团聚体有机碳、微团聚体有机碳含量显著高于CK(P＜0.05)。BDM2处理土壤大团聚体有机碳含量、中团聚体有机碳含量、微团聚体有机碳含量显著高于CK、PE处理、BDM1处理(P＜0.05)。综上,生物降解地膜覆盖通过改善土壤水热条件抑制返盐,促进团聚体稳定与有机碳积累,改善土壤结构,提高土壤养分有效性,进而提升大豆产量。其中,BDM2覆膜处理对土壤改良与增产效果最为显著,可替代传统聚乙烯地膜,在江苏省滨海盐碱耕地上推广应用。
Abstract:
To explore the effects of different biodegradable plastic film mulching practices on soil environment, carbon sequestration, and soybean yield in coastal saline-alkali land, this study set up five treatments: no film mulching (control, CK), polyethylene film mulching (PE), biodegradable plastic film mulching with a functional lifespan of 55-65 days (BDM1), biodegradable plastic film mulching with a functional lifespan of 65-75 days (BDM2), and biodegradable plastic film mulching with a functional lifespan of 75-85 days (BDM3). The results showed that biodegradable plastic film mulching affected soil nutrient contents mainly by regulating soil temperature and moisture. The soil salt content and pH under biodegradable plastic film mulching treatments were lower than those of the control, while the average soil temperature and average soil moisture were higher than those of the control. The soil organic carbon content and organic carbon storage in the BDM2 treatment were significantly higher than those in the CK, PE, BDM1, and BDM3 treatments (P＜0.05). The contents of water-stable aggregates, mean weight diameter, and geometric mean diameter of soil in the BDM2 treatment were significantly higher than those in the CK, PE, BDM1, and BDM3 treatments (P＜0.05). In addition, the fractal dimension of soil aggregates in the BDM2 treatment was significantly lower than that in the CK, BDM1, and BDM3 (P＜0.05). The contents of aggregate-associated organic carbon and microaggregate-associated organic carbon in soil under the PE, BDM1, BDM2, and BDM3 treatments were significantly higher than those in the CK (P＜0.05). The contents of macroaggregate-associated organic carbon, mesoaggregate-associated organic carbon, and microaggregate-associated organic carbon in the BDM2 treatment were significantly higher than those in the CK, PE, and BDM1 treatments (P＜0.05). In conclusion, biodegradable plastic film mulching inhibited soil salt return by improving soil hydrothermal conditions, promoted aggregate stability and organic carbon accumulation, improved soil structure, enhanced soil nutrient availability, and then increased soybean yield. Among these treatments, the BDM2 treatment exhibited the most significant effects on soil improvement and yield increase, which could replace traditional polyethylene film and be popularized and applied in coastal saline-alkali farmland of Jiangsu province.

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备注/Memo

备注/Memo:
收稿日期：2025-09-18基金项目：盐城市基础研究计划青年基金项目(YCBK2024014);亚夫科技服务项目[KF(24)1219];农业农村部沿海盐碱地科学观测实验站开放课题暨所基金项目(YHS202302)作者简介：孙果丽(1989-), 女, 山西运城人, 博士, 助理研究员, 主要从事耐盐作物和盐碱地改良研究。(E-mail)sungl4726@163.com通讯作者：邢锦城,(E-mail)sdauxxx@163.com
更新日期/Last Update: 2026-02-09