| 水保措施对红壤坡地柑橘林土壤呼吸及其水热因子的影响 |
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| 引用本文： | 左继超,胡建民,郑海金,张英虎,万佳蕾.水保措施对红壤坡地柑橘林土壤呼吸及其水热因子的影响[J].水土保持通报,2016,36(4):124-128,132. |
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| 作者姓名： | 左继超 胡建民 郑海金 张英虎 万佳蕾 |
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| 作者单位： | 江西省水土保持科学研究院,江西南昌330029;江西省土壤侵蚀与防治重点实验室,江西南昌330029 |
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| 基金项目： | 江西省重点科技成果转移转化计划项目“水土保持调控径流泥沙技术推广应用”（20133ACI90004）；水利部公益性行业科研专项（201501045）；江西省水利科技项目（KT201421；KT201312） |
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| 摘 要： | 目的]探讨不同水土保持措施对红壤坡地柑橘林土壤呼吸的影响,为科学评价水土保持生态建设在应对气候变化方面的作用提供基础数据。方法]采用试验观测和对比分析的方法研究横坡间作+等高草带、横坡间作、顺坡间作和清耕对照4种处理对柑橘林土壤呼吸速率的动态变化及其对土壤温度、土壤水分的响应。结果]4个不同处理的柑橘林土壤呼吸速率均呈明显的单峰曲线变化,峰值出现在7月;各处理的土壤呼吸速率季节动态变化一致,采取横坡间作+等高草带和横坡间作两种水保措施均一定程度上增加了土壤呼吸速率;土壤呼吸速率与土壤温度呈显著正相关;横坡间作+等高草带和横坡间作处理的土壤呼吸的温度敏感性指数Q10较柑橘清耕和顺坡间作处理Q10值略有增加。结论]红壤柑橘林采取水土保持措施后,土壤呼吸速率增强,且其对温度的响应增加。
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| 关 键 词： | 柑橘林 土壤呼吸 水土保持措施 土壤水分 土壤温度 |
| 收稿时间： | 9/7/2015 12:00:00 AM |
| 修稿时间： | 2015/11/7 0:00:00 |
Responses of Soil Respiration and Hydro-thermal Factors to Soil and Water Conservation Measures in Citrus Reticulata Plantations |
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| ZUO Jichao,HU Jianmin,ZHENG Haijin,ZHANG Yinghu and WAN Jialei.Responses of Soil Respiration and Hydro-thermal Factors to Soil and Water Conservation Measures in Citrus Reticulata Plantations[J].Bulletin of Soil and Water Conservation,2016,36(4):124-128,132. |
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| Authors: | ZUO Jichao HU Jianmin ZHENG Haijin ZHANG Yinghu and WAN Jialei |
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| Institution: | Key Laboratory of Soil Erosion and Prevention of Jiangxi Province, Nanchang, Jiangxi 330029, China;Jiangxi Institute of Soil and Water Conservation, Nanchang, Jiangxi 330029, China,Key Laboratory of Soil Erosion and Prevention of Jiangxi Province, Nanchang, Jiangxi 330029, China;Jiangxi Institute of Soil and Water Conservation, Nanchang, Jiangxi 330029, China,Key Laboratory of Soil Erosion and Prevention of Jiangxi Province, Nanchang, Jiangxi 330029, China;Jiangxi Institute of Soil and Water Conservation, Nanchang, Jiangxi 330029, China,Key Laboratory of Soil Erosion and Prevention of Jiangxi Province, Nanchang, Jiangxi 330029, China;Jiangxi Institute of Soil and Water Conservation, Nanchang, Jiangxi 330029, China and Key Laboratory of Soil Erosion and Prevention of Jiangxi Province, Nanchang, Jiangxi 330029, China;Jiangxi Institute of Soil and Water Conservation, Nanchang, Jiangxi 330029, China |
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| Abstract: | Objective] The effects of soil and water conservation measures on soil respiration were studied to scientifically evaluate the role of soil and water conservation to climate change. Methods] Four soil and water conservation measures, including cross-slope tillage and contour sod strip, cross-slope tillage, down-slop tillage and weed clearing, were designed to assess the effects on soil respiration. And the response of soil respiration rate to soil moisture and soil temperature was illustrated. Results] Soil respiration rates of four Citrus reticulata plantation treatments had the same seasonal change trend, they all changed in an unimodal curve with their peaks in July. Soil respiration rate increased to some extent as soil and water conservation measures taken. Soil respiration rate had a significantly positive correlation with soil temperature. The temperature sensitivity index Q10 values in the cross-slope tillage and contour sod strip treatment and cross-slope tillage treatment were higher than that in the treatments of weed clearing and down-slop tillage. Conclusion] Soil respiration increased after soil and water conservation measures was implemented, which could influence of soil temperature to some extent. |
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| Keywords: | Citrus reticulata plantations soil respiration soil and water conservation measures soil water soil temperature |
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