| 土壤风力侵蚀研究现状与进展 |
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| 引用本文： | 胡云锋,刘纪远,庄大方.土壤风力侵蚀研究现状与进展[J].地理科学进展,2003,22(3):288-295. |
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| 作者姓名： | 胡云锋 刘纪远 庄大方 |
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| 作者单位： | 中国科学院地理科学与资源研究所,北京100101 |
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| 基金项目： | 国家重点基础研究发展规划项目2002CB412505，中国科学院知识创新重大方向性项目(KZCX-2-308) |
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| 摘 要： | 土壤风蚀实质上是土壤颗粒在风力作用下发生位移的自然过程,它包含了土壤夹带起沙、空间输移及沉降淀积等三个阶段。风蚀研究的根本任务是对土壤风蚀的范围、强度及数量进行监测、评价以及预测预报。为此,科学家在断面尺度、地块(图斑)尺度以及区域尺度上,以年、月、日、小时等时间尺度展开了研究。当前的风蚀研究主要有以下四个方向:实验室和野外风洞实验研究、野外观测与网络监测、风蚀评价以及风蚀估算与过程模拟研究等。实验室和野外风洞实验有助于人们深入理解风蚀的基本过程;而网络监测数据对于实现风蚀研究从局部到整体的尺度转换具有重要意义;在风蚀评价方面,对风蚀发源地的风蚀评价研究卓有成效,但针对风蚀物运移过程及沉降过程的研究成果还不多见;在风蚀估算和过程模拟方面,一些模型或应用系统已经在不同的区域以不同的时空尺度取得良好的效果,但是要将这些模型和系统在不同的时空尺度上做进一步推广还有许多工作要做。遥感和GIS等现代地理信息技术在区域尺度的风蚀研究中有着显著的优势,并贯穿了风蚀研究的全过程。
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| 关 键 词： | 方法论 风力侵蚀 土壤侵蚀 研究尺度 |
| 文章编号： | 1007-6301(2003)03-0288-08 |
| 收稿时间： | 2003-02-01 |
| 修稿时间： | 2/1/2003 12:00:00 AM |
Progress in Wind Erosion Research |
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| HU Yunfeng,LIU Jiyuan,ZHUANG Dafang.Progress in Wind Erosion Research[J].Progress in Geography,2003,22(3):288-295. |
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| Authors: | HU Yunfeng LIU Jiyuan ZHUANG Dafang |
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| Institution: | Institute of Geographic Sciences and Natural Resources Research,CAS , Beijing 100101,China |
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| Abstract: | Wind erosion is an environment process of soil particle movement forced by wind ,including the sub processes of soil particle entrainment,space transportatio n and deposition Nowadays,scientists and the public pay more attention to the excessive wind erosion because it causes serious environment disaster The mon itoring,evaluation and prediction about the scope,intensity and magnitude of wind erosion are in focus, and they are developed in different spatial / tempora l scales which include profile scale,field (pattern) scale,region scale and an nual,monthly,daily,and hourly scale According to the research aims,means a nd scales,current researches can be cataloged as 4 main aspects: laboratory or field wind tunnel experiments,field investigation and net monitoring system,wi nd erosion evaluation model research,and wind erosion process modeling or quant itative simulation prediction The first topic is essential to deeply understan d the physics of wind erosion,and the second can help transform the research fr om local scale to global scale Thirdly, there are more models to evaluate wind erosion in the source regions than in the transforming paths and the deposition zones In the aspect of simulation and prediction model system of wind erosion ,some models and systems have gained exciting results in some regions by specif ic scale However,more works are needed to generalize them in other regions o r by other different scales In all research aspects, the geographic informatio n techniques, including remote sensing and GIS(Geographic Information System) is and will be the most important tools to acquire. |
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| Keywords: | soil erosion wind erosion scale methodology |
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