CAJ | 학술논문

韩江上游是我国南方红壤区水土流失较严重的典型区域，需要摸清该区域的水土流失状况，为水土流失综合防治决策提供依据。本文以2008年10 m分辨率的Alos多光谱遥感影像为数据源，采用人机交互解译方法，对韩江上游水土流失现状进行了遥感分析，结果表明：韩江上游土地利用以林地和耕地为主，植被覆盖状况良好，但地形陡峭，水土流失面积达5102．56km2，侵蚀强度以轻度为主，主要分布于广东境内梅江及其支流两岸五华、梅县、兴宁和平远县的山丘区，以及福建境内汀江流域上中游上杭、长汀、武平和永定县的山丘区。
한강상유시아국남방홍양구수토류실교엄중적전형구역，수요모청해구역적수토류실상황，위수토류실종합방치결책제공의거。본문이2008년10 m분변솔적Alos다광보요감영상위수거원，채용인궤교호해역방법，대한강상유수토류실현상진행료요감분석，결과표명：한강상유토지이용이임지화경지위주，식피복개상황량호，단지형두초，수토류실면적체5102．56km2，침식강도이경도위주，주요분포우엄동경내매강급기지류량안오화、매현、흥저화평원현적산구구，이급복건경내정강류역상중유상항、장정、무평화영정현적산구구。
The upper reaches of Hanjiang River is a typical region which has serious soil and water losses in the red soil areas of southern China , it is necessary to know clearly the soil erosion status in this area so as to provide the basis for the soil erosion comprehensive prevention and control policy making .Based on the Alos satellite images with 10 m resolution in 2008 , it was conducted the remote sensing analysis to the soil erosion status at the upper reaches of Han -jiang River by using the human -computer interactive interpretation method .The results showed that the main land use types in this area were forest and farmland with good vegetation cover .However , due to the steep terrain , the soil ero-sion areas still reached over 5,100 km2 ,that are slight erosion mainly distributed in the hilly areas of Wuhua , Meixian, Xingning&Pingyuan Counties at both sides of the Meijiang River and its branch of Guangdong Province and the hilly areas of Shanghang , Changting , Wuping and Yongding Counties at the upper and middle reaches of Tingjiang River Basin in Fujian Province .