免耕不同秸秆覆盖量对土壤可溶性氮素累积及运移的影响

生态学杂志

免耕不同秸秆覆盖量对土壤可溶性氮素累积及运移的影响

何传瑞^1,3,全智²,解宏图²,鲁彩艳^1*,陈欣¹,史奕^1

(¹中国科学院污染生态与环境工程重点实验室, 沈阳 110016; ²中国科学院沈阳应用生态研究所, 沈阳 110016; ³中国科学院大学, 北京 100049)

出版日期:2016-04-10 发布日期:2016-04-10

Accumulation and transport of soil extractable N affected by corn stover mulching quantity in no-tillage system.

HE Chuan-rui^1,3, QUAN Zhi², XIE Hong-tu², LU Cai-yan^1*, CHEN Xin¹, SHI Yi^1

(¹Key Laboratory of Pollution Ecological and Environmental Engineering, Chinese Academy of Sciences, Shenyang 110016, China; ^2Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China; ^3University of Chinese Academy of Sciences, Beijing, 100049, China).

Online:2016-04-10 Published:2016-04-10

摘要/Abstract

摘要： 通过田间原位试验，研究了连续8年免耕秸秆覆盖对土壤剖面NH₄⁺-N、NO₃^--N和可溶性有机氮(EON)累积、垂直运移和淋溶损失的影响。试验设5个处理，分别为常规垄作对照(RT)、免耕无秸秆覆盖(NT₀)、免耕+33%秸秆覆盖(NT₃₃)、免耕+67%秸秆覆盖(NT₆₇)和免耕+100%秸秆覆盖(NT₁₀₀)。结果表明：免耕秸秆覆盖条件下，土壤可溶性氮素主要以NO₃^--N形态存在，其次是EON；免耕不同秸秆覆盖量对土壤NO₃^--N累积和垂直运移特性的影响不同；NT₃₃和NT₆₇处理中土壤NO₃^--N淋溶至40～80 cm土层，而NT₁₀₀处理淋溶至40～60 cm土层；与RT处理相比，NT₆₇和NT₁₀₀处理显著降低了0～20 cm土层NO₃^--N和EON库的容量，但增加了40～60 cm土层NO₃^--N库的容量；说明免耕秸秆覆盖增加了土壤NO₃^--N自耕层向深层的垂直运移和淋溶损失，但对EON和NH₄+-N无显著影响。

关键词: 回归分析, 鮸, 形态性状, 相关分析, 通径分析

Abstract: An 8year field experiment was conducted to study the accumulation, vertical transport and leaching of soil NH₄⁺-N, NO₃^--N and extractable organic N (EON) affected by corn stover mulching in no-tillage system. The experiment consisted of five treatments, including a ridge tillage as control (RT), no-tillage without corn stover mulching (NT0), no-tillage with 33% corn stover mulching (NT₃₃), no-tillage with 67% corn stover mulching (NT₆₇), and no-tillage with 100% corn stover mulching (NT₁₀₀). The results showed that soil extractable N mainly existed in form of NO₃^--N, followed by EON in the no-tillage system with corn stover mulching. Corn stover mulching with different quantities significantly affected the accumulation and vertical transport of soil NO₃^--N in no-tillage system. The soil NO₃^--N was leached to the 40-80 cm soil layer in the NT₃₃ and NT₆₇ treatments, and the 40-60 cm soil layer in the NT₁₀₀ treatment. Compared to RT treatment, NT₆₇ and NT₁₀₀ treatments significantly decreased the capacity of NO₃^--N and EON pools in the 0-20 cm soil layer, and increased that of NO₃^--N pool in the 40-60 cm soil layer. Our results suggest that corn stover mulching increased the vertical transport and leaching loss of soil NO₃^--N pool from cultivation layer to deep soil in no-tillage system, and had no influence on the soil EON and NH₄⁺-N.

Key words: path analysis, morphometric trait, correlation analysis, regression analysis, Miichthys miiuy

何传瑞1,3,全智2,解宏图2,鲁彩艳1*,陈欣1,史奕1. 免耕不同秸秆覆盖量对土壤可溶性氮素累积及运移的影响[J]. 生态学杂志.

HE Chuan-rui1,3, QUAN Zhi2, XIE Hong-tu2, LU Cai-yan1*, CHEN Xin1, SHI Yi1. Accumulation and transport of soil extractable N affected by corn stover mulching quantity in no-tillage system.[J]. cje.

[1]	陈昊, 辛琨, 熊燕梅, 钱威, 曾书军, 李泽瑞, 艾熙航, 张迪娜, 胡凯杰. 碳添加对入侵互花米草生物量和根、叶形态性状的影响 [J]. 生态学杂志, 2025, 44(12): 3898-3905.
[2]	肖佩怡, 蒋小姿, 杨澜, 赵耀, 杨天燕. 黄渤海不同群体星康吉鳗形态性状对体质量影响效果的多重分析 [J]. 生态学杂志, 2025, 44(1): 131-138.
[3]	董佳乐, 许涵, 解亚鑫, 陈洁, 李艳朋, 雷婕. 氮添加对不同氮需求豆科植物幼苗根系形态性状和根叶养分含量的影响 [J]. 生态学杂志, 2024, 43(5): 1255-1262.
[4]	李亚敏, 郑丽芝, 李军, 张兵. 滹沱河生态补水效果及其影响因素 [J]. 生态学杂志, 2024, 43(11): 3423-3432.
[5]	武梦晗, 王弋. 新疆莎车灌区农作物需水量和产量特征及其影响因素 [J]. 生态学杂志, 2023, 42(8): 1858-1868.
[6]	徐森, 谷瑞, 陈双林, 郭子武, 杨丽婷, 董亚文. 竹子箨叶形态性状的种间差异及其与竹笋食味品质指标的关系 [J]. 生态学杂志, 2022, 41(2): 270-277.
[7]	罗也, 杨雨春, 赵珊珊, 任生, 许长有, 朱爱玲. 东北中东部胡桃楸天然次生林产区区划 [J]. 生态学杂志, 2022, 41(12): 2299-2305.
[8]	李姣姣, 赵学强, 王嘉林, 李小莉, 沈仁芳. 废旧电器拆解场地周边污染区土壤-植物系统重金属积累特征和生态风险 [J]. 生态学杂志, 2022, 41(12): 2432-2439.
[9]	王磊, 胡效卿, 张卓伦, 高雨轩, 张新厚, 王国祥. 不同水深和基质下苦草(Vallisneria natans)的生理生态适应策略 [J]. 生态学杂志, 2021, 40(8): 2421-2430.
[10]	陈曦, 岳伟, 徐建鹏, 陈金华, 贾兵, 叶振风, 刘洪民. 猕猴桃主栽品种气候品质评价模型构建 [J]. 生态学杂志, 2021, 40(12): 4119-4127.
[11]	罗达, 史彦江, 宋锋惠, 李嘉诚. 38个榛种质资源叶功能性状与光合特征变异及其相关性 [J]. 生态学杂志, 2021, 40(1): 11-22.
[12]	宁亚洲, 张福平, 冯起, 魏永芬, 丁家宝, 张元. 秦岭水源涵养功能时空变化及其影响因素 [J]. 生态学杂志, 2020, 39(9): 3080-3091.
[13]	袁秀锦,肖文发,雷静品,王晓荣,胡文杰,崔鸿侠,庞宏东,潘磊. 马尾松林分结构对冠层水文效应的影响 [J]. 生态学杂志, 2020, 39(2): 451-459.
[14]	罗新兰,李英歌,殷红,隋明. 东北地区植被NDVI对不同时间尺度SPEI的响应 [J]. 生态学杂志, 2020, 39(2): 412-421.
[15]	刘旻霞, 夏素娟, 穆若兰, 南笑宁, 李全弟, 蒋晓轩. 黄土高原中部三种典型绿化植物光合特性的季节变化 [J]. 生态学杂志, 2020, 39(12): 4098-4109.