%0 Journal Article %T 黑土区坡式条田对水土流失、土壤水热及呼吸的影响 %T Effects of Sloping Contour Earth Bund on Soil Erosion, Moisture, Temperature, and Respiration in Black Soil Area of Northeast China %A 张瑜,徐子棋,杨献坤,崔斌 %A Zhang Yu %A Xu Ziqi %A Yang Xiankun %A Cui Bin %J 水土保持通报 %J 水土保持通报英文版 %@ 1000-288X %V 40 %N 5 %D 2020 %P 160-165 %K 黑土区;坡式条田;水土流失;土壤水热;土壤呼吸 %K black soil area;sloping contour earth bund;soil erosion;soil water content and temperature;soil respiration %X [目的] 探索坡式条田在黑土区坡耕地水土保持和改善土壤环境中的作用,以期为坡式条田在坡耕地上的利用提供理论支持。[方法] 基于野外试验,观测研究了坡式条田对径流产沙、土壤水热和土壤呼吸的影响。[结果] ①黑土坡面设置坡式条田具有良好的减流减沙效果,年均减少输沙率和减少地表径流率分别为78.3%和68.5%,土壤侵蚀模数为87.53 t/(km2·a),控制在允许范围内;②修筑坡式条田显著提高土壤质量含水量(p<0.05),并能显著增加植被覆盖度(p<0.01);③研究区土壤呼吸与土壤温度显著相关,修筑坡式条田能够显著降低土壤呼吸速率,降低土壤碳素损失。[结论] 黑土区坡式条田能够很好地防治水土流失,改善土壤水热和植被状况,且能降低土壤呼吸造成的C素流失,应在黑土坡耕地上推广应用。 %X [Objective] The function of sloping contour earth bunds with respect to soil and water conservation and environmental enhancement on sloping farmland in a black soil area was investigated in order to provide theoretical support for the use of sloping contour earth bunds on sloping farmland.[Methods] Field experiments were carried out to observe the effects of a sloping contour earth bund on soil erosion, the soil water content, soil temperature, and soil respiration.[Results] ① The sloping contour earth bund had a remarkable effect on reducing the amount of soil erosion in the black soil area; the amount of erosion was 87.53 t/(km2·a), which was less than the allowable amount of erosion. ② Construction of the sloping contour earth bund significantly increased the soil water content (p<0.05) and the vegetation coverage ratio (p<0.01). ③ The soil respiration and soil temperature were significantly correlated in the research area, and the sloping contour earth bund clearly reduced the soil respiration rate and soil carbon loss.[Conclusion] The sloping contour earth bund exhibited remarkable effects for reducing soil erosion, improving the soil water content and temperature conditions, and reducing the soil respiration rate and soil carbon loss; hence, it is suitable for sloping farmland in the black soil area. %R 10.13961/j.cnki.stbctb.2020.05.024 %U http://stbctb.alljournal.com.cn/stbctb/home %1 JIS Version 3.0.0