| 邓思圆1,2,3
，谭 皓4
，巩如梦1,2,3
，黄园园1,2,3
，王 充1,2,3
，赵从举1,2,3
，解 钰1,2,3*.强还原土壤灭菌法对退化香蕉地
土壤有机氮组分的影响[J].海南师范大学学报自科版,2025,38(4):497-504 |
| 强还原土壤灭菌法对退化香蕉地
土壤有机氮组分的影响 |
| Effect of Reductive Soil Disinfestation on Soil Organic Nitrogen Fractions in Degraded Banana Fields |
| |
| DOI：10.12051/j.issn.1674-4942.2025.04.016 |
| 中文关键词: 强还原土壤灭菌法 土壤有机氮组分 pH 土壤肥力 香蕉园 |
| 英文关键词: reductive soil disinfestation soil organic nitrogen fractions pH soil fertility banana fields |
| 基金项目:海南省自然科学基金项目（421RC1057，322QN305，422RC662） |
| 作者 | 单位 | | 邓思圆1,2,3
，谭 皓4
，巩如梦1,2,3
，黄园园1,2,3
，王 充1,2,3
，赵从举1,2,3
，解 钰1,2,3* | 1. 海南师范大学 地理与环境科学学院，海南 海口 571158；
2. 海南省热带岛屿地表过程与环境变化重点实验室，海南 海口 571158；
3. 澄迈美亭农林复合生态系统海南观测研究站，海南 澄迈 571900；
4. 海南省农业科学院 农业环境与土壤研究所，海南 海口 571199 |
|
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| 中文摘要: |
| 强还原土壤灭菌法（Reductive Soil Disinfestation， RSD）是一种新兴的生物修复技术，通
过创设厌氧环境抑制土传病菌同时改善土壤理化性质。为探究强还原土壤灭菌法对于土壤有机
氮组分的影响，以退化香蕉地土壤为研究对象，采用Bremner酸水解法对强还原土壤灭菌法处理
前、后土壤的有机氮组分进行分析。结果表明：（1）强还原土壤灭菌处理显著提高蕉园土壤pH、有
机质浓度、交换性钙浓度和交换性镁浓度，显著降低土壤速效磷浓度；（2）强还原土壤灭菌处理显
著提高蕉园土壤全氮、酸解总氮、氨态氮、氨基酸态氮、酸解未知氮的浓度，显著降低土壤氨基糖态
氮浓度，土壤有机氮中氨态氮、酸解未知氮的占比显著增加，氨基糖态氮、非酸解氮的占比显著降
低；（3）土壤pH和有机质浓度与酸解总氮、氨态氮、酸解未知氮浓度均显著正相关，与氨基糖态氮
浓度均显著负相关，pH与氨基酸态氮浓度显著正相关，速效磷浓度与酸解总氮、氨态氮和酸解未知
氮浓度显著负相关，与氨基糖态氮浓度显著正相关，土壤有机质浓度、pH、速效磷浓度的变化是导
致土壤有机氮组分发生变化的关键因素。 |
| 英文摘要: |
| Reducing soil disinfestation (RSD), an emerging bioremediation technique, creates an anaerobic environment to
suppresses soil-borne pathogens while improving the physicochemical properties of soil. To investigate the effects of RSD
on soil organic nitrogen fractions, soils from a degraded banana plantation were analyzed using the Bremner acid hydrolysis
method before and after RSD treatment. The results showed that: (1) RSD significantly increased soil pH, organic matter
concentration, and exchangeable Ca and Mg contents, while markedly reduced available phosphorus; (2) RSD significantly
enhanced soil total nitrogen (TN), acid hydrolysable nitrogen (AHN), ammonium nitrogen (AN), amino acid nitrogen (AAN),
and hydrolysable unidentified nitrogen (HUN) concentrations, but decreased amino sugar nitrogen (ASN), with the
proportions of AN and HUN in soil organic nitrogen increasing significantly, whereas those of ASN and non-acid
hydrolysable nitrogen (NHN) declined; (3) Soil pH and organic matter concentration exhibited significant positive
correlations with AHN, AN, and HUN, but negative correlations with ASN while pH also correlated positively with AAN.
Available phosphorus showed significant negative correlations with AHN, AN, and HUN, but a positive correlation with
ASN. Collectively, shifts in soil organic matter, pH, and available phosphorus were identified as the key drivers of changes
in soil organic nitrogen fractions under RSD treatment. |
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