森林工程2025，Vol.41Issue(3)：486-494,9.DOI:10.7525/j.issn.1006-8023.2025.03.005
东北黑土区地埂间距对土壤物理性质空间分布特征影响
The Impact of Field Ridge Spacing on the Spatial Distribution Characteristics of Soil Physical Properties in the Northeast Black Soil Region
摘要
Abstract
This study aims to clarify the spatial distribution characteristics of ridge plant belts on soil water-holding ca-pacity and soil structure in sloping farmland,providing a scientific basis for optimizing ridge plant belt configurations and soil and water conservation measures in Northeast China's black soil region.Sloping farmland with ridge plant belts was selected as the research object(Ridge 1:ridge spacing of 12.5 m;Ridge 2:ridge spacing of 19.5 m),and sloping farmland was selected as the control.The uniform spatial point sampling method was obtained using basic physical prop-erty indicators in the surface layer(0-15 cm),and to quantify the differences in the spatial distribution characteristics of soil water-holding capacity and soil structure in sloping farmland with different spacing of ridge plant belts.The result showed that,the sloping farmland with ridge construction showed a significant increase in total porosity,capillary poros-ity,saturated water-holding capacity,field capacity,and capillary water-holding capacity,with a relatively uniform dis-tribution across the slope.In addition,compared to the Ridge 2,the soil of Ridge 1 showed an increase of 0.96-1.11 times in total porosity,1.21-1.31 times in capillary porosity,1.03-1.25 times in saturated water-holding capacity,1.22-1.78 times in field capacity,and 1.33-1.52 times in capillary water-holding capacity,respectively.The soil me-chanical stable aggregate mass fraction,MWD(mean weight diameter),water-stable aggregate mass fraction,and GMD(geometric mean diameter)in the sloping farmland with ridge showed significant improvements across all fields.Com-pared to the controls,the sloping farmland with ridge increased by 1.01-1.15 times,0.94-1.61 times,1-1.17 times,and 1.05-1.55 times,respectively.This indicated that the sloping farmland with ridge effectively improved soil struc-ture compared to the control.Moreover,compared to the sloping farmland with Ridge 2,the soil mechanical stable aggre-gate mass fraction,MWD,water-stable aggregate mass fraction,and GMD in the sloping farmland with Ridge 1 in-creased by 1.08-1.14 times,0.95-1.28 times,1.07-1.15 times,and 1.14-1.40 times,respectively.Constructing ridges can improve water-holding capacity and soil structure characteristics,with a more significant improvement effect observed in relatively small distances smaller distances between ridges.关键词
黑土区/地埂植物带/空间变化/土壤持水能力/土壤结构特征Key words
Black soil region/ridge plant belt/spatial variation/soil water-holding capacity/soil structure characteristics分类
农业科学引用本文复制引用
邵帅,刘滨辉,魏思雨,付玉..东北黑土区地埂间距对土壤物理性质空间分布特征影响[J].森林工程,2025,41(3):486-494,9.基金项目
"十四五"国家重点研发计划项目(2021YFD1500705). （2021YFD1500705）
