中文摘要：

针对在大范围区域中,地表覆盖结构存在多样性、复杂性,影像的时相信息难以统一,较为单一算法解译的全球尺度产品在地形条件较为复杂的丘陵地区较难达到高精度提取要求,该文选用1988年至2014年近26年间共6期卫星遥感数据资料,对赣州地区的森林、灌草、耕地、荒地、水体和人造地表6类地表信息进行提取。结果表明,赣州地区森林覆盖面积呈现先减后增的趋势,从1990年的32 589.62km2减少到2000年的30 846.55km2,后逐渐恢复至2014年的31 150.05km2;26年来,裸地、陆表水和人造地表（城市不透水层）面积呈线性增加,相比1990年时期,裸地增加了约5倍,陆表水体增长了78%,人造地表呈快速线性增长,增率达5倍多。研究表明,赣州地区的水域、植被等生态资源发展态势良好,社会经济和城镇化发展速度快,综合分析发现赣州地区在海拔201-500m上生态干扰最为严重、受人类活动影响大。

英文摘要：

Ganzhou region is a typical region of hilly and mountainous area in southern China, where the ecological environment change is of great significance to understand the sustainable development for whole southern China region. The Landsat images of Ganzhou region from 1988 to 2014 were used to extract the surface information of six kinds of surface features including forest,shrub grass, farmland, wasteland, water body and artificial surface. The results show that：the trend of forest cover area was decreased firstly and then increased. That is to say,from 1990 to 2000,the forest area has been reduced 32 589, 62 km^2 to 30 846. 55 km^2 ,and then in 2014, the area recovered 31 150.05 km^2. During the 26 years, wasteland, water body and artificial surface can be mapped out in linear progression. Compared with 1990, wasteland increased by about 5 times, water body rose 78 % and growth rate of artificial surface was more than 5 times. It illustrated that the development of ecological resources such as water and vegetation in Ganzhou region is good,and the social economy and urbanization development is fast. The comprehensive analysis shows that in Ganzhou area, at the altitude of 201 -500 m,the ecological disturbance is the most serious,which is affected by human activities.