文章分析了蜚克图河流域工程建设、林草植被破坏、土壤侵蚀、水质污染、超负荷用水等使流域生态系统面临的威胁。
The paper analyses the stress faced by the ecological system of Feiketu river basin due to project construction, vegetation damage, soil erosion, water pollution and overburden water use.
土壤侵蚀调查技术经历了人工实地填图调查、航(卫)片目视判读调查之后，目前已进入数字遥感影像调查的新阶段。
Having experienced the ways of field survey on the spot and eyed-interpret on image, the survey technique on soil erosion entered a new stage of using digital remote sensing imagery.
土壤侵蚀调查技术经历了人工实地填图调查、航(卫)片目视判读调查之后，目前已进入数字遥感影像调查的新阶段。
Having experienced the ways of field survey on the spot and eyed-interpretation on optical image, the survey technique on soil erosion entered a new stage of using digital remote sensing imagery.
这两种函数特征都是一曲率凹向上的图象，它表明随着降雨量的增大，单位降雨量所引起的土壤侵蚀量在逐步增大。
Both of the two function are convex curvature images, which shows that with rainfall increasing, the amounts of soil erosion resulting from per unit rainfall increases step by step.
可以使用土壤侵蚀模型与诺谟图计算土壤可蚀性。
We can use soil erosion model and nomogram to calculate soil erodibility.
该图详细反映了流城内土壤侵蚀类型的定位关系。
The map of soil erosion type shows thoroughly the space relationship of the soil erosion type.
利用1958年、1975年、1982年和1996年的土壤侵蚀强度等级图，在GIS软件支持下生成土壤侵蚀强度栅格分类图。
Based on the soil erosion maps in 1958, 1975, 1982 and 1996, GIS software was used to produce soil erosion grid maps.
利用1958年、1975年、1982年和1996年的土壤侵蚀强度等级图，在GIS软件支持下生成土壤侵蚀强度栅格分类图。
Based on the soil erosion maps in 1958, 1975, 1982 and 1996, GIS software was used to produce soil erosion grid maps.
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