摘要
于1990-1994年，对黄、渤海海岸风沙地貌、风沙沉积、风沙灾害和土地沙漠化现象进行详细的外业调查、测量和填图。在此基础上，利用GIS技术原理，对海岸风沙地貌进行系统的分类研究，对海岸风沙地貌分布规律和发育模式进行较深入的探讨。结果表明，研究区风沙地貌、风沙灾害和土地沙漠化现象主要分布在冬、春季气候干旱、风力强而持久、砂源丰富的渤海海岸和山东半岛北岸的砂质海岸地区，海岸沙丘和风成砂地总面积达700多km2，海岸风沙地貌的发育模式受地貌背景、海岸带风场和砂源条件的控制。
On the basis of the athors. 1990 - 1994 comprehensive investigation on the aeolian geomorphical features, aeolian sedimentation, wind-sand disasters and land desenification phenomena in the coastal areas of the Yellow Sea and Bohai Sea,including field survey, mapping and measuremellts of wind-sand movement,the coastal aeolian geomorphica types are classified, using the principles of Geographical Information Systcm. The distribuhon pattern and evolution medels of coastal aeolian geomorphical types are presented and discussed in detail. The results show the the coastal aeolian geomorphical features, wind-sand disasters and land desertification phenomna are mainly distributed over the sandy coastal areas of the Bohai An and along the north coast of the Shandong Peninsula where sand resources are abundan and the clitalic environments in winter and spring are characterized by drough weathr, frequen strong winds which last for long periods. The total area covered by coastal aeolian duns and sand lands exceeds 7O0 kmh the north to northwestern winds are the direct factors causing wind-sand disasters and land desertification in the study area. The evolution medels of aeolian geomorphica types in vanous coastal areas are mainly controlled by coastal geomorphical backgrounds,sghfic coasal wind regimes and sand resourees. Three different evolution models of the coastal aeolian geomorphical patterns are recoghzed and described.
出处
《海洋与湖沼》
CAS
CSCD
北大核心
1997年第1期56-65,共10页
Oceanologia Et Limnologia Sinica
基金
国家海洋局海洋科技发展基金!8912
关键词
海岸
风沙地貌
分布规律
发育模式
黄海
渤海
Coastal aeolian geomorphology
Distribution pattern
Evolution model
