本文選題：土地覆被變化　切入點：驅(qū)動因素　出處：《地理科學(xué)》2017年11期

【摘要】：以中等分辨率Landsat系列影像為數(shù)據(jù)源,利用面向?qū)ο蟮膱D像分析(OBIA)方法,研究1990~2015年韓國土地覆被變化的主要特征與驅(qū)動因素。研究發(fā)現(xiàn):近25 a來,韓國人工表面、林地、濕地、耕地和水體面積變化較大。人工表面擴張最為明顯,面積增加了1 847.24 km2(+38.97%),主要發(fā)生在以首爾為中心的首都圈地區(qū),多由耕地和林地轉(zhuǎn)化而來。林地、濕地和耕地面積分別減少776.71 km2、707.32 km2和426.65 km2。過去25 a間韓國土地覆被變化主要集中分布在海拔較低(100 m)和坡度較小(3°)的區(qū)域。人類活動因素,如人口增長、城市擴張、經(jīng)濟發(fā)展及政策調(diào)控等是造成韓國土地覆被變化的主要原因。
[Abstract]:The main characteristics and driving factors of land cover change in South Korea from 1990 to 2015 were studied by using object oriented image analysis (OBIA) method based on Landsat series images with medium resolution. The results showed that: in recent 25 years, artificial surface, woodland, wetland in South Korea, The area of cultivated land and water body changed greatly. The artificial surface expanded most obviously, the area increased by 1 847.24 km2 (38.97 km2), mainly occurred in the capital region with Seoul as the center, mostly from cultivated land and forest land. The area of wetland and cultivated land decreased by 776.71 km2707.32 km2 and 426.65 km2 respectively. Over the past 25 years, land cover changes in South Korea were mainly concentrated in areas with lower elevation (100m) and lower slope (3 擄). Human activity factors, such as population growth, urban expansion, Economic development and policy control are the main causes of land cover change in South Korea.
【作者單位】： 中國科學(xué)院東北地理與農(nóng)業(yè)生態(tài)研究所濕地生態(tài)與環(huán)境重點實驗室;中國科學(xué)院大學(xué);
【基金】：中國科學(xué)院重點部署項目課題(KZZD-EW-08-02)資助~~
【分類號】：F301.2;TP79

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