水土保持通报2024，Vol.44Issue(3)：1-8,25,9.DOI:10.13961/j.cnki.stbctb.20240313.001
东北漫川漫岗黑土区典型农业小流域切沟沟头形态特征及其影响因素
Morphological Characteristics and Influencing Factors of Gully Heads in a Typical Agricultural Watershed in Rolling-Hill Black Soil Region of Northeast China
摘要
Abstract
[Objective]The morphological characteristics and influencing factors of a gully head in a typical agricultural watershed in the rolling-hill black soil region of Northeast China were studied in order to provide basic data and theoretical support for controlling gully erosion in a mollisols region.[Methods]The study was conducted for gully heads of a typical agricultural watershed in Hainan Township,Hailun City,Heilongjiang Province.The morphological characteristics of the gully heads,soil type,and soil configuration were investigated in the field.The correlation between gully heads morphological characteristics and internal causes(soil characteristics)and external environmental factors were analyzed.[Results]① At Hainan Township small watered the soil types of the cut gully head were typical black soil,meadow black soil,and alluvial soil.The soil structure consisted of mainly humus layer(A)+illuvial layer(B)+parent material layer(C)type,supplemented by humus layer(A)+parent material layer(C)type and humus layer(A)+parent material layer(C)+buried layer(Ab)type.② Correlation analysis showed gully morphology was complicated by internal and external factors,and the single morphology was affected not only by internal and external factors,but also by its own morphology.③ Redundancy analysis showed that the slope,soil configuration,and catchment area of the gully head were the main factors affecting gully head morphology,and were positively correlated with gully head morphology.The vegetation coverage of the gully head,the distance between crops and the gully head,the angle between the ridge and the gully head elevation were negatively correlated with gully head morphology.[Conclusion]The morphological characteristics of gully heads are complex,and the soil vertical difference is the fundamental internal factor.Gully head morphology is affected by both internal and external factors.关键词
漫川漫岗/黑土区/沟头形态/土体构型Key words
rolling-hill/black soil region/gully head morphology/soil configuration分类
农业科技引用本文复制引用
杨帆,巩子瑞,郭明明,张立波,鲁文龙,刘欣,王百阳,张靖雪..东北漫川漫岗黑土区典型农业小流域切沟沟头形态特征及其影响因素[J].水土保持通报,2024,44(3):1-8,25,9.基金项目
中国科学院东北地理与农业生态研究所青年科学家小组项目"典型黑土区多外营力驱动的坡沟系统土壤侵蚀机制与阻控对策研究"(2023QNXZ03) （2023QNXZ03）
国家自然科学基金项目"典型黑土区侵蚀沟沟岸裂隙形成—发育过程及其失稳机制"(42107356) （42107356）
科技部重点研发子课题(2021YFD1500804) （2021YFD1500804）
吉林农业大学本科生科技创新基金(S202310193027) （S202310193027）
