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中国农学通报

中国农学通报 ›› 2025, Vol. 41 ›› Issue (35): 55-62.doi: 10.11924/j.issn.1000-6850.casb2025-0195

• 资源·环境·生态·土壤·气象 • 上一篇    下一篇

垄作烟田土壤呼吸特征研究

刘运通1(), 杨海林2, 周津弘2(), 李涛1, 张娜1, 高进波1, 刘宪斌1, 杨利云1   

  1. 1 玉溪师范学院农学与生物科学学院/云南省高校滇中农业生物资源开发利用与环境保护重点实验室/云南省高校玉溪特色农业资源发掘与利用重点实验室,云南玉溪 653100
    2 云南省烟草公司玉溪市公司，云南玉溪 653100
  • 收稿日期:2025-03-06 修回日期:2025-05-08 出版日期:2025-12-11 发布日期:2025-12-11
  • 通讯作者:
    周津弘，男，1988年出生，云南玉溪人，助理农艺师，本科，主要从事烟草绿色防控研究。通信地址：6531000 云南省玉溪市红塔区凤凰路102号，Tel：0877-296664，E-mail：。
  • 作者简介:

    刘运通，男，1979年出生，河北沧州人，副研究员，博士，研究方向：全球变化生态学。通信地址：6531000 云南省玉溪市星云路28号，Tel：0877-2058881，E-mail：。

  • 基金资助:
    中国烟草总公司云南省公司科技计划项目“‘双碳’背景下玉溪烟田碳排放变化规律与影响因素研究”(yxyc2023031); 云南省科技厅人才项目“云南省中青年学术和技术带头人后备人才”(202305AC160090); 国家自然科学基金项目“云南热带雨林与稀树灌草丛生态系统土壤呼吸对干旱对立响应的机制研究”(41975147); 云南省地方本科高校基础研究联合专项面上项目“茉莉酸信号对玉米幼苗耐热性的影响及其作用的生理及分子机制”(202101BA070001-065)

Study on Soil Respiration Characteristics of Tobacco Fields with Ridge Tillage

LIU Yuntong1(), YANG Hailin2, ZHOU Jinhong2(), LI Tao1, ZHANG Na1, GAO Jinbo1, LIU Xianbin1, YANG Liyun1   

  1. 1 Key Laboratory of Exploration and Utilization of Characteristic Agricultural Resources of Yuxi, Institution of Higher Education of Yunnan Province/ Key Laboratory of Development, Utilization and Environmental Protection of Agricultural Biological Resources of Central Region of Yunnan, Institution of Higher Education of Yunnan Province/ School of Agronomy and Biological Sciences, Yuxi Normal University, Yuxi, Yunnan 653100
    2 Yuxi Branch of Yunnan Provincial Tobacco Company, Yuxi, Yunnan 653100
  • Received:2025-03-06 Revised:2025-05-08 Published:2025-12-11 Online:2025-12-11

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摘要：

为应对全球气候变暖，减少温室气体的排放、实现“碳中和”成为研究热点。本研究旨在揭示云南玉溪烟草常规垄作栽培模式下土壤呼吸通量特征及其主要影响因子，为烟田固碳减排提供数据支持。本研究采用静态箱气相色谱法，在云南省玉溪市澄江市核心烟区，观测了常规种植模式下垄作烟田的土壤呼吸，并分析了土壤呼吸通量特征及其与土壤环境因子和养分因子之间的关系。结果表明：玉溪烟草常规起垄种植模式下，垄上土壤5 cm处温度极显著(P<0.01)高于沟里，而土壤10 cm处无显著差异；垄上土壤0~10 cm的水分含量极显著(P<0.01)高于沟里；垄上土壤MBC、NH4+-N和NO3--N，均极显著(P<0.01)高于沟里；烟草生育期内土壤呼吸的总量为1.45 t C/hm2，其中垄上和沟里的土壤呼吸总量分别为1.60 t C/hm2和1.30 t C/hm2，差异极显著(P<0.01)。整体而言，玉溪烟草常规垄作种植模式下土壤呼吸通量表现为净排放，主要影响因素为土壤MBC、DOC、10 cm处的温度和0~10 cm的土壤水分含量。垄作显著导致垄上和沟在土壤环境因素、养分因素和土壤呼吸通量上的差异。因此，观测垄作烟田土壤呼吸特征时，应注意区分垄上和沟底的差异，以获得准确数据，为烟田制定“双碳”目标实现策略提供科学支撑。

关键词: 土壤呼吸, 垄作, 土壤温度, 土壤湿度, 烟田

Abstract:

In response to global climate warming, reducing anthropogenic greenhouse gas emissions and achieving "carbon neutrality" has become a research hotspot. The main purpose of this study is to identify the characteristics of soil respiration fluxes and their main influencing factors in traditional ridged tobacco cultivation in Yuxi, providing valuable data for enhancing carbon sequestration and reducing emissions in tobacco fields. We measured soil respiration in conventional planting patterns in the core tobacco growing area of Chengjiang City, Yuxi, Yunnan Province, using a static chamber gas chromatography technique. The study investigated the dynamics of soil respiration flux and its relationship with soil environmental and nutrient factors. The results showed that, under the conventional ridge-planting system, soil temperature at 5 cm depth on the ridge was significantly higher (P< 0.01) than in the furrow, while there was no difference in temperature between the furrow and ridge soil at 10 cm, and the moisture content of soil on the ridge from 0 to 10 cm was significantly higher (P<0.01) than that in the furrow; MBC, NH4+- N, and NO3-- N in the soil on the ridge were significantly (P<0.01) higher than those in the furrow; the total soil respiration during the tobacco growth period was 1.45 t C/hm2, with total soil respiration on ridge and in furrow being 1.60 t C/hm2 and 1.30 t C/hm2, respectively, with significant differences (P<0.01). The soil respiration flux under the conventional ridge planting mode of Yuxi tobacco exhibited net emissions, mainly influenced by soil MBC, DOC, temperature at 10 cm depth, and soil moisture content from 0 to 10 cm layer. The ridge-planting method caused significant differences in soil environmental and nutrient factors, as well as soil respiration flux, between the ridge and furrow areas. Therefore, when observing soil respiration characteristics in ridge-planting tobacco fields, it is essential to distinguish the difference between the ridge and furrow areas to obtain more accurate results, providing scientific support for achieving the "dual carbon" goals in tobacco fields.

Key words: soil respiration, ridge tillage, soil temperature, soil moisture, tobacco field