中国2010-2015年土地利用变化的时空格局与新特征(英文)

被引:80
作者
宁佳 [1 ]
刘纪远 [1 ]
匡文慧 [1 ]
徐新良 [1 ]
张树文 [2 ]
颜长珍 [3 ]
李仁东 [4 ]
吴世新 [5 ]
胡云锋 [1 ]
杜国明 [6 ]
迟文峰 [1 ]
潘涛 [5 ]
宁静 [6 ]
机构
[1] Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, CAS
[2] Northeast Institute of Geography and Agroecology, CAS
[3] Cold and Arid Regions Environmental and Engineering Research Institute, CAS
[4] Institute of Geodesy and Geophysics, CAS
[5] Xinjiang Institute of Ecology and Geography, CAS
[6] Northeast Agricultural
关键词
land-use change; spatial-temporal characteristics; remote sensing; Major Function-oriented Zones; China;
D O I
暂无
中图分类号
F301.24 [土地开发与利用];
学科分类号
摘要
Land use/cover change is an important theme on the impacts of human activities on the earth systems and global environmental change. National land-use changes of China during 2010–2015 were acquired by the digital interpretation method using the high-resolution remotely sensed images, e.g. the Landsat 8 OLI, GF-2 remote sensing images. The spatiotemporal characteristics of land-use changes across China during 2010–2015 were revealed by the indexes of dynamic degree model, annual land-use changes ratio etc. The results indicated that the built-up land increased by 24.6×10~3 km2 while the cropland decreased by 4.9×10~3 km2, and the total area of woodland and grassland decreased by 16.4×10~3 km2. The spatial pattern of land-use changes in China during 2010–2015 was concordant with that of the period 2000–2010. Specially, new characteristics of land-use changes emerged in different regions of China in 2010–2015. The built-up land in eastern China expanded continually, and the total area of cropland decreased, both at decreasing rates. The rates of built-up land expansion and cropland shrinkage were accelerated in central China. The rates of built-up land expansion and cropland growth increased in western China, while the decreasing rate of woodland and grassland accelerated. In northeastern China, built-up land expansion slowed continually, and cropland area increased slightly accompanied by the conversions between paddy land and dry land. Besides, woodland and grassland area decreased in northeastern China. The characteristics of land-use changes in eastern China were essentially consistent with the spatial govern and control requirements of the optimal development zones and key development zones according to the Major Function-oriented Zones Planning implemented during the 12 th Five-Year Plan(2011–2015). It was a serious challenge for the central government of China to effectively protect the reasonable layout of land use types dominated with the key ecological function zones and agricultural production zones in centraland western China. Furthermore, the local governments should take effective measures to strengthen the management of territorial development in future.
引用
收藏
页码:547 / 562
页数:16
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