水土保持通报2024，Vol.44Issue(6)：166-176,11.DOI:10.13961/j.cnki.stbctb.2024.06.018
黑龙江省拜泉县典型区坡耕地侵蚀沟发育的影响因素
Factors Affecting Development of Erosion Gullies on Typical Slope Farmland at Baiquan County of Heilongjiang Province
摘要
Abstract
[Objective]The development characteristics of erosion gullies at black soil area in rolling hilly area in Northeast China were explored,and the influencing factors of erosion gullies in sloping farmland were revealed,in order to provide scientific basis and data support for erosion gully control in the region.[Methods]The study selected 61 typical erosion gullies on sloping farmland at Guofu Town,Baiquan County,Helongjiang Province,as research sites.Factors such as slope,aspect,altitude,and catchment area were extracted and analyzed for their effects on the morphological changes and development characteristics of gullies on sloping farmland,using drone aerial photography techniques to generate digital elevation models and based on data sources such as remote sensing images in the study area.[Results]① The length,area,and volume of the erosion gullies in the study area showed a significant correlation with factors such as slope,altitude,and catchment area.Except for gully length,the correlation between gully morphological parameters and influencing factors ranked from large to small(i.e.,catchment area＞slope＞altitude).② Gully length variation and shape index showed a gradual decrease with increasing slope,reaching the maximum value within the range between 0° and 2°.Gully depth increased with increasing slope,peaking at 4° to 5°;significant variations were observed in gully development on sunny and semi-sunny slopes,with the most rapid development occurring on southwest-facing slopes.The average gully length and shape index in the study area showed a trend of first increasing and then decreasing with increasing altitude,reaching a peak in the range of 230-240 m.③ Larger catchment areas corresponded to larger gully morphological parameters and more intense gully development.When the catchment area was within the range of＞20 hm2,the variations in gully length and gully bank area reached their peak values.④ A multivariate regression model constructed with gully morphological parameters and influencing factors showed a high degree of fit.The fitting coefficients for gully length,area,and volume were 0.73,0.47,and 0.16,respectively.[Conclusion]The development of erosion gullies in typical areas of Baiquan County is significantly influenced by slope,aspect,catchment area,and altitude.It is recommended to prioritize erosion control measures for gullies located on slopes between 2° and 3°,facing southeast,at altitudes of 230-240 m,and with catchment areas exceeding 20 hm2.关键词
侵蚀沟/黑土/黑龙江省拜泉县/坡耕地Key words
erosion gully/black soil/Baiquan County,Heilongjiang Province/slope farmland分类
农业科技引用本文复制引用
钱志晶,刘烨,侯驭麒,高澳,牛羽萱,徐金忠,肖洋..黑龙江省拜泉县典型区坡耕地侵蚀沟发育的影响因素[J].水土保持通报,2024,44(6):166-176,11.基金项目
国家重点研发计划项目子课题"北部低山丘陵水蚀区土壤侵蚀防治保护性利用模式"(2021YFD150080503) （2021YFD150080503）
黑龙江省自然科学基金项目(LH2020D018) （LH2020D018）
