Responses of Soil Respiration and Hydro-thermal Factors to Soil and Water Conservation Measures in Citrus Reticulata Plantations
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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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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].水土保持通报英文版,2016,36(4):124-128,132

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History
  • Received:September 07,2015
  • Revised:November 07,2015
  • Adopted:
  • Online: September 21,2016
  • Published: