基于M-DEM黄土人工锄耕坡面微地形特征研究
文献类型:期刊论文
作者 | 张青峰 ; 王健 ; 赵龙山 ; 宋向阳 ; 梁心蓝 |
刊名 | 干旱区资源与环境
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出版日期 | 2012 |
卷号 | 26期号:09页码:149-153 |
关键词 | 土壤侵蚀 soil erosion M-DEM M - DEM 微地形 micro - topography 耕作措施 tillage measure ArcGIS ArcGIS |
其他题名 | M - DEM - based micro - topography characteristics of artificial tillage loess |
中文摘要 | 黄土人工锄耕坡面微地形是地表径流和土壤侵蚀过程的重要影响因素。文中在1.0 mm/min雨强的人工模拟降雨试验条件下,采用微地形激光扫描测量方法获取5°人工锄耕坡面微地形相对高程,并进行拟合模型参数验证,进而构建了能反映真实地表情况的高精度M-DEM,并在ArcGIS中对其特征参量进行量化研究。结果表明:黄土人工锄耕坡面微地形起伏较小,整体属于凸形斜坡;虽在某些区域容易形成地表径流,但径流变化比较平缓,不容易形成较大的水流;微地形水系分维能较好地反映复杂微地形特征。论文可为在微地形层面进一步揭示黄土耕作坡面土壤侵蚀机理研究提供数据支持和方法参考。 |
英文摘要 | Artificial backhoe ( AB) cultivated loess slope micro - topography is an important indicator to reflect the surface runoff and soil erosion. In this paper,1. 0 mm / min rainfall intensity was selected for the artificial rainfall experiment; The laser scanning technique was adopted to collect surface relative elevation data. Simultaneously, the parameters of fitted simivariogram model were validated,and M - DEM was constructed. Then characteristics factors of artificial backhoe surface with the slope of 5° were conducted. The results showed that: AB micro - topographic slope is belonging to a " convex - type" slope with slight fluctuations of relative elevation. Also,it was easy to form surface runoff in some specific areas,but the runoff of AB slope was relatively flat,and hard to form larger flow. The fractal dimension of flow system could better reflect the complex character of micro - topography. In conclusion,this work has established a novel methodological framework and data support for revealing the erosion mechanism about loess tillage slope at micro - topographic level. |
语种 | 中文 |
公开日期 | 2014-08-27 |
源URL | [http://ir.iswc.ac.cn/handle/361005/5417] ![]() |
专题 | 水土保持研究所_水保所知识产出(1956-2013) |
推荐引用方式 GB/T 7714 | 张青峰,王健,赵龙山,等. 基于M-DEM黄土人工锄耕坡面微地形特征研究[J]. 干旱区资源与环境,2012,26(09):149-153. |
APA | 张青峰,王健,赵龙山,宋向阳,&梁心蓝.(2012).基于M-DEM黄土人工锄耕坡面微地形特征研究.干旱区资源与环境,26(09),149-153. |
MLA | 张青峰,et al."基于M-DEM黄土人工锄耕坡面微地形特征研究".干旱区资源与环境 26.09(2012):149-153. |
入库方式: OAI收割
来源:水土保持研究所
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