水土保持研究2024，Vol.31Issue(1)：136-143,8.DOI:10.13869/j.cnki.rswc.2024.01.021
砒砂岩区坡面产流产沙对土地利用方式的响应
Response of Slope Runoff and Sediment Yield to Land Use in the Pisha Sandstone Area
摘要
Abstract
[Objective]The study of slope runoff and sediment yield processes in response to different land use type is of great significance for the ecological protection and high-quality development of Pisha sandstone areas.[Methods]The Hantaichuan watershed of the sub-watershed of the ten largest Kongtui was taken as the study area.The rainfall-produced flow and sediment production monitoring data from 2016-2021 in the area were selected.Cluster analysis and two-factor analysis of variance were applied to carry out a continuity and dynamic monitoring study,which in turn revealed the relationship between the temporal and spatial dynamics of the slope runoff and sediment yield in the Pisha sandstone area and different land use types.[Results](1)The rainfall could be divided into three categories according to the duration,intensity and rain-fall,including category A(short duration,concentrated rainfall and high intensity),category B(heavy rain-fall,short duration,medium intensity),and category C(long duration,light rainfall intensity,scattered rainfall).Category C resulted in the weakest ability of soil erosion.(2)Type A and type B rainfall induced sediment,the order was tree forest＜shrub land＜artificial grassland＜natural grassland＜crop land＜bare land.The order of type C rainfall-runoff production was tree forest＜natural grassland＜shrub land＜artificial grassland＜crop land＜bare land,and the order of sediment production was artificial grassland＜tree forest＜natural grassland＜shrub land＜crop land＜bare land,and the order of runoff depth and soil loss amount of the same land use mode(only bare land and crop land)was C＜B＜A.(3)The slope effect of runoff depth or soil loss amount on the response of rainfall pattern was slightly different among different land use types,which mainly existed among bare land,crop land and other land use type.[Conclusion]The management and ecological restoration of slope erosion in Pisha sandstone area should take into account the compounding effect of rainfall patterns and slope gradients have on different land use types.关键词
砒砂岩区/坡面产流产沙/土地利用方式Key words
Pisha sandstone area/slope runoff and sediment yield/land use type分类
农业科技引用本文复制引用
马郡粒,杨振奇,郭建英,张铁钢,王普,马培渊..砒砂岩区坡面产流产沙对土地利用方式的响应[J].水土保持研究,2024,31(1):136-143,8.基金项目
内蒙自治区自然基金(2021BS04009) （2021BS04009）
内蒙古自治区科技兴蒙行动重点专项(KJXM-EEDS-2020005) （KJXM-EEDS-2020005）
内蒙古自治区科技计划项目(2021GG0052) （2021GG0052）
内蒙古自治区科技重大专项(2021ZD0008) （2021ZD0008）
