| 崩岗侵蚀地貌分布的海拔高程与坡向选择性 |
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| 引用本文： | 刘希林,连海清.崩岗侵蚀地貌分布的海拔高程与坡向选择性[J].水土保持通报,2011(4):32-36,41. |
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| 作者姓名： | 刘希林 连海清 |
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| 作者单位： | 中山大学地理科学与规划学院;中山大学自然灾害研究中心; |
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| 基金项目： | 国家自然科学基金项目“华南崩岗溯源侵蚀与泥石流启动和形成的试验研究”(41071186) |
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| 摘 要： | 崩岗侵蚀地貌在华南地区广泛分布,近年的崩岗普查为科学研究提供了详实的资料。根据统计结果,重新认识了早期提出的崩岗侵蚀地貌的分布具有海拔高程和坡向选择性的特点。通过对几个典型崩岗发育区资料的分析表明,人类生产活动的高程范围影响着崩岗的发育和分布,崩岗分布的地形相对高差研究较海拔高程研究更具现实意义。以推理方式质疑已有崩岗侵蚀地貌分布坡向性选择的成因解释,并提出可能是由于统计盲点而导致的表象性误差。分析结果表明,太阳辐射—崩岗发育的推论有其限制条件,应将人类生产活动作为崩岗侵蚀地貌发育新的驱动力给予充分认识。
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| 关 键 词： | 崩岗地貌 海拔高程 坡向 |
| 收稿时间： | 2010/12/28 0:00:00 |
| 修稿时间： | 2011/1/15 0:00:00 |
Distribution Choices of Elevation and Slope Orientation of Collapsing Hills |
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| LIU Xi-lin and LIAN Hai-qing.Distribution Choices of Elevation and Slope Orientation of Collapsing Hills[J].Bulletin of Soil and Water Conservation,2011(4):32-36,41. |
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| Authors: | LIU Xi-lin and LIAN Hai-qing |
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| Institution: | LIU Xi-lin1,2,LIAN Hai-qing1(1.School of Geography and Planning,Sun Yat-Sen University,Guangzhou,Guangdong 510275,China,2.Natural Disaster Research Centre,China) |
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| Abstract: | Collapsing hills are widely distributed in Southern China.In recent years,the survey of collapsing hills has provided a number of data for scientific studies.Based on statistical data,this study recognized the problem of elevation and slope orientation choices of collapsing hills in South China,and considered it might be doubtful.The explanations for the chioce phenomena have been renewed.Typical collapsing hill erosion studies in Southern China show that,human activities have been the main influencing fact... |
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| Keywords: | collapsing hills landform elevation slope orientation |
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