[1]邹惠杰,刘 刚,舒成博,等.内蒙古农牧交错区典型黑土坡耕地土壤侵蚀空间分布特征[J].水土保持研究,2025,32(01):13-20.[doi:10.13869/j.cnki.rswc.2025.01.040]
　Zou Huijie,Liu Gang,Shu Chengbo,et al.Spatial distribution characteristics of soil erosion on typical black soil slopes in Inner Mongolia's agricultural and pastoral intertwined areas[J].Research of Soil and Water Conservation,2025,32(01):13-20.[doi:10.13869/j.cnki.rswc.2025.01.040]
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内蒙古农牧交错区典型黑土坡耕地土壤侵蚀空间分布特征

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 32 期数: 2025年01期 页码: 13-20 栏目: 出版日期: 2025-01-10
Title:
Spatial distribution characteristics of soil erosion on typical black soil slopes in Inner Mongolia's agricultural and pastoral intertwined areas
文章编号:
1005-3409(2025)01-0013-08
作者:
邹惠杰1,2,3, 刘 刚1,2,4, 舒成博4, 孙 波4, 刘 亚4, 张 琼1,2,4, 郭 珍5
(1.中国科学院 教育部水土保持与生态环境研究中心, 黄土高原土壤侵蚀与旱地农业国家重点实验室, 陕西 杨凌 712100; 2.中国科学院 水利部 水土保持研究所, 陕西 杨凌 712100; 3.中国科学院大学, 北京 100049; 4.西北农林科技大学, 黄土高原土壤侵蚀与旱地农业国家重点实验室, 陕西 杨凌 712100; 5.四川华标测检测技术有限公司, 成都 610097)
Author(s):
Zou Huijie1,2,3, Liu Gang1,2,4, Shu Chengbo4, Sun Bo4, Liu Ya4, Zhang Qiong1,2,4, Guo Zhen5
(1.State Key Laboratory of Soil Erosion and Dryland Agriculture,The Research Center of Soil and Water Conservation and Ecological Environment,Chinese Academy of Sciences and ministry of Education,Yangling,Shaanxi 712100,China; 2.Institute of Soil and Water Conservation,Chinese Academy of Sciences and Ministry of Water Resources,Yangling,Shaanxi 712100,China; 3.University of Chinese Academy of Sciences,Beijing 100049,China; 4.State Key Laboratory of Soil Erosion and Dryland Agriculture...)
关键词:
土壤侵蚀;  典型黑土;  农牧交错带;  小波分析
Keywords:
soil erosion;  typical black soil;  farming-pastoral zone;  wavelet analysis
分类号:
S157.1
DOI:
10.13869/j.cnki.rswc.2025.01.040
文献标志码:
A
摘要:
[目的]定量了解内蒙古典型黑土区土壤侵蚀速率,探究该区域土壤侵蚀空间分布特征,阐明土壤侵蚀坡面和区域空间分布规律,以期为区域水土流失治理提供参考。[方法]采集内蒙古农牧交错区(海拉尔区、额尔古纳市和牙克石市)典型黑土坡耕地的土壤样品,利用137Cs示踪技术计算各采样点土壤侵蚀速率,结合小波分析的方法研究土壤侵蚀在坡面的分布特征。[结果](1)3个坡面所有采样点137Cs含量均小于背景值(1 984.24 Bq/m2),表现为所有坡面土壤流失。(2)3个地区的采样坡面平均侵蚀速率表现为:海拉尔〔6 533.37 t/(km2·a)〕>额尔古纳〔4 174.35 t/(km2·a)〕>牙克石〔2 765.87 t/(km2·a)〕。相同坡面的3个纵向断面的平均侵蚀速率相近,同一断面侵蚀速率的变异程度较高。(3)土壤侵蚀速率沿坡长呈强弱交替的周期性变化,但周期长度并不固定。大部分纵向断面存在周期长度为80～160 m和160～200 m的大小两个周期。部分纵向断面只存在一个周期长度为100～120 m的周期。[结论]该地区土壤侵蚀在坡面尺度表现为全坡面侵蚀且在纵向呈现周期性特征,在区域尺度呈现从东到西逐渐增加趋势。
Abstract:
[Objective]To quantify the rate of soil erosion in typical black soil areas of Inner Mongolia, investigate the spatial distribution characteristics of soil erosion in the region, and elucidate the spatial distribution patterns of slopes and regions soil erosion. The aim is to provide references for regional soil erosion management. [Methods]In this study, soil samples were collected from typical black soil sloping cropland in Inner Mongolia's agricultural and pastoral intertwined areas(Hailar District, Erguna City, and Yakeshi City). The 137Cs tracer technology was utilized to calculate the soil erosion rate at each sampling point. Additionally, the method of wavelet analysis was employed to investigate the distribution characteristics of soil erosion on the slopes. [Results](1)All sampling points on all three slopes had 137Cs levels lower than the background value(1 984.24 Bq/m2), indicating soil erosion on all slopes.(2)The average erosion rate of the slopes in the three areas was in the order that Hailar 〔6 533.37 t/(km2·a)〕> Erguna 〔4 174.35 t/(km2·a)〕> Yakeshi 〔2 765.87 t/(km2·a)〕. The average erosion rates of the three longitudinal sections of the same slope were similar, but the coefficient of variation of the erosion rates within the same section was high.(3)The soil erosion rate varied periodically of strength and weakness along the slope length, but the cycle length was not constant. The most of longitudinal sections exhibited two cycles of change. The small cycle ranges from 80 to 160 m, while the large cycle ranges from 160 to 200 m. Some longitudinal sections only had one cycle of change, with a length ranging from 100 to 120 m. [Conclusion]Soil erosion in this area exhibits full-slope erosion at the slope scale and displays cyclic characteristics in the longitudinal direction. There is a gradual increase trend from east to west at the regional scale. The findings of this study can offer a scientific basis and data support for soil erosion management in the study area.

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备注/Memo

收稿日期:2024-03-10 修回日期:2024-03-24
资助项目:中国科学院战略性先导科技专项(子课题)“黑土地保护与利用科技创新工程专项”(XDA28010201)
第一作者:邹惠杰(1996—),女,河南周口人,硕士研究生,主要从事土壤侵蚀研究。E-mail:zouhuijie21@mails.ucas.ac.cn
通信作者:刘刚(1982—),男,陕西西安人,研究员,博士生导师,主要从事土壤侵蚀研究。E-mail:gliu@foxmail.com

更新日期/Last Update: 2025-01-10