CAJ | 학술논문

利用遥感影像对松华坝水源区的植被覆盖度进行分级并提取面积数据，选取本世纪的3个典型年，分析了不同植被覆盖度地区对应的土地利用类型和不同海拔高度的植被覆盖度变化规律，结果表明：松华坝水源区植被覆盖度有逐年增加的趋势，且植被覆盖度增加集中在＞2000 m的区域，生态敏感度较高的区域植被生长较好，植被覆盖度减少的区域主要分布在人口相对集中的地区；由于2009年降雨量的减少导致其各个区域的植被覆盖度变化有较大差异，应根据当地情况进行有针对性的保护，以提高其抵御自然灾害的能力。
이용요감영상대송화패수원구적식피복개도진행분급병제취면적수거，선취본세기적3개전형년，분석료불동식피복개도지구대응적토지이용류형화불동해발고도적식피복개도변화규률，결과표명：송화패수원구식피복개도유축년증가적추세，차식피복개도증가집중재＞2000 m적구역，생태민감도교고적구역식피생장교호，식피복개도감소적구역주요분포재인구상대집중적지구；유우2009년강우량적감소도치기각개구역적식피복개도변화유교대차이，응근거당지정황진행유침대성적보호，이제고기저어자연재해적능력。
The vegetation coverage of three typical years in this century in the river basin area of the Songhua Dam is calculated based on remote sensing images .The main forest vegetation coverage is classified and the area data is extrac-ted.Then, the type of land usage for areas of different vegetation coverage and the change of vegetation coverage in dif -ferent altitude are analyzed .Results show that the vegetation coverage in the Songhua Dam basin has a tendency to in-crease yearly .And the regions with an increasing vegetation coverage are concentrated in the areas that the altitude is higher than 2000 m.The vegetation grows better in the region of high ecological sensitivity .While the regions with a de-creased vegetation coverage are mainly located in the areas with a high population concentration .The decreasing of rain-fall in 2009 has different influences on the change of vegetation coverage in different regions .Thus, different protection measures should be taken according to local conditions to improve the ability to withstand natural disasters .