东北黑土区植物篱空间结构配置的探讨

Study on spatial structure configuration based on hedgerows in black soil region of northeast China

开展黑土区植物篱结构配置的研究分析,为东北黑土区探索应用植物篱模式提供参考。通过理论计算分析及定位试验表明,黑豆果和短梗刺五加最佳株距为15.0 cm,桑树最佳株距为5.0 cm,带间距依据水土流失方程式,按不同坡度计算得出30.6 m和9.0 m两种间距,几种结构的植物篱均具有良好的水土保持效益。因此,黑土区植物篱模式的带内结构采用双排式、品字形配置,株距以近地枝条密度法计算并结合种植试验进行确定,带间结构为植物篱+农作物模式,带间距以通用水土流失方程式作为计算依据,该方法可作为黑土区植物篱模式研究与推广应用的技术依据。

The spatial structure configuration based on the hedgerows in the black soil region of northeast China were analyzed in order to provide important scientific basis for the exploration and the application of hedgerows mode.Based on the theoretical calculation analysis and location experiments,the results showed that,the best plant spacing of blackcurrant and short carpopodiuma canthopanax was 15 cm,and the best plant spacing of mulberry was 5 cm.The inter band spacing was divided into 30.6 m and 9.0 m calculated by slope factor in the universal soil and water loss equation(USLE).Existing hedgerows mode showed decent benefits for water and soil conservation.Therefore,in-band structure of hedgerows mode in the black soil region of northeast China adopted double-row and triangle configuration.Plant spacing was calculated bymethod of the near-ground branch density and confirmed combined by planting experiment.Meanwhile,interband structure of hedgerows mode adopted hedgerow cooperated with crop mode,and inter band spacing was calculated by USLE model.This method can be used as a technical basis for the research,popularization and application of the hedgerow mode in the black soil region of northeast China.