Journal of Geographical Sciences >
Spatiotemporal characteristics, patterns, and caus-es of land-use changes in China since the late 1980s
Received date: 2013-08-21
Revised date: 2013-11-07
Online published: 2014-03-24
Supported by
National Basic Research Program of China, No.2010CB950900; No.2014CB954302; National Key Technology R&D Program, No.2013BAC03B00; The Key Research Program of the Chinese Academy of Sciences, No.KSZD-EW-Z-021-02
Land-use/land-cover changes (LUCCs) have links to both human and nature interactions. China's Land-Use/cover Datasets (CLUDs) were updated regularly at 5-year intervals from the late 1980s to 2010,with standard procedures based on Landsat TM\ETM+ images. A land-use dynamic regionalization method was proposed to analyze major land-use conversions. The spatiotemporal characteristics,differences,and causes of land-use changes at a national scale were then examined. The main findings are summarized as follows. Land-use changes (LUCs) across China indicated a significant variation in spatial and temporal characteristics in the last 20 years (1990-2010). The area of cropland change decreased in the south and increased in the north,but the total area remained almost unchanged. The reclaimed cropland was shifted from the northeast to the northwest. The built-up lands expanded rapidly,were mainly distributed in the east,and gradually spread out to central and western China. Woodland decreased first,and then increased,but desert area was the opposite. Grassland continued decreasing. Different spatial patterns of LUC in China were found between the late 20th century and the early 21st century. The original 13 LUC zones were replaced by 15 units with changes of boundaries in some zones. The main spatial characteristics of these changes included (1) an accelerated expansion of built-up land in the Huang-Huai-Hai region,the southeastern coastal areas,the midstream area of the Yangtze River,and the Sichuan Basin;(2) shifted land reclamation in the north from northeast China and eastern Inner Mongolia to the oasis agricultural areas in northwest China;(3) continuous transformation from rain-fed farmlands in northeast China to paddy fields;and (4) effectiveness of the "Grain for Green" project in the southern agricultural-pastoral ecotones of Inner Mongolia,the Loess Plateau,and southwestern mountainous areas. In the last two decades,although climate change in the north affected the change in cropland,policy regulation and economic driving forces were still the primary causes of LUC across China. During the first decade of the 21st century,the anthropogenic factors that drove variations in land-use patterns have shifted the emphasis from one-way land development to both development and conservation.The "dynamic regionalization method" was used to analyze changes in the spatial patterns of zoning boundaries,the internal characteristics of zones,and the growth and decrease of units. The results revealed "the pattern of the change process," namely the process of LUC and regional differences in characteristics at different stages. The growth and decrease of zones during this dynamic LUC zoning,variations in unit boundaries,and the characteristics of change intensities between the former and latter decades were examined. The patterns of alternative transformation between the "pattern" and "process" of land use and the causes for changes in different types and different regions of land use were explored.
Key words： satellite remote sensing; land-use change; characteristics; spatial pattern; China
LIU Jiyuan, KUANG Wenhui, ZHANG Zengxiang, XU Xinliang, QIN Yuanwei, NING Jia, ZHOU Wancun, ZHANG Shuwen, LI Rendong, YAN Changzhen, WU Shixin, SHI Xuezheng, JIANG Nan, YU Dongsheng, PAN Xianzhang, CHI Wenfeng . Spatiotemporal characteristics, patterns, and caus-es of land-use changes in China since the late 1980s[J]. Journal of Geographical Sciences, 2014 , 24(2) : 195 -210 . DOI: 10.1007/s11442-014-1082-6
Feng X M, Sun G, Fu B J et al., 2012. Regional effects of vegetation restoration on water yield across the Loess Plateau, China. Hydrology and Earth System Sciences, 16: 2617-2628.
GLP Science Plan and Implementation Strategy (GLP), 2005. IGBP Report No. 53/IHDP Report No.19, Stockholm. 64.
Herrick J E, Urama K C, Karl J W et al., 2013. The global land-potential knowledge system (land PKS): Supporting evidence-based, site-specific land use and management through cloud computing, mobile applications, and crowdsourcing. Journal of Soil and Water Conservation, 68(1): 5-12.
Huang B W, 1959. Draft of the complex physical geographical division of China. Kexue Tongbao (Chinese Science Bulletin), 18: 594-602. (in Chinese)
Jin S M, Yang L M, Danielson et al., 2013. A comprehensive change detection method for updating the national land cover database to circa 2011. Remote Sensing of Environment, 132: 159-175.
Kuang W H, Liu J Y, Zhang Z X et al., 2013. Spatiotemporal dynamics of impervious surface areas across China during the early 21st century. Chinese Science Bulletin, 14: 1-11.
Lambin E F, Baulies X, Bockstael N et al., 1995. Land-use and land-cover change (LUCC): Implementation strategy. A core project of the International Geosphere-Biosphere Programme and the International Human Dimensions Programme on Global Environmental Change. IGBP Report 48. IHDP Report 10. IGBP, Stockholm, 125.
Liu J Y, 1996. Macro-scale Survey and Dynamic Study of Natural Resources and Environment of China by Remote Sensing. Beijing: China Science and Technology Press. (in Chinese)
Liu J Y, Liu M L, Zhuang D F et al., 2003a. Study on spatial pattern of land-use change in China during 1995-2000. Science in China Series D: Earth Sciences, 46(4): 373-384.
Liu J Y, Zhang Z X, Zhuang D F et al., 2003b. A study on the spatial-temporal dynamic changes of land-use and driving forces analyses of China in the 1990s. Geographical Research, 22(1): 1-12. (in Chinese)
Liu J Y, Zhang Z X, Xu X L et al., 2010. Spatial patterns and driving forces of land use change in China during the early 21st century. Journal of Geographical Sciences, 20(4): 483-494.
Lu Y H, Fu B J, Feng X M et al., 2012. A policy-driven large scale ecological restoration: Quantifying ecosystem services changes in the Loess Plateau of China. PLOS one, 7(2): 1-10.
McMahon G, Benjamin S P, Clarke K et al., 2005. Geography for a changing world: A science strategy for the geographic research of the U.S. geological survey, 2005-2015, Sioux Falls. SD: U.S. Geological Survey Circular, 1281: 1-76.
Meyfroidt P, Lambin E F, Erb K et al., 2013. Globalization of land use: Distant drivers of land change and geographic displacement of land use. Current Opinion in Environmental Sustainability, 5: 1-7.
Mooney H A, Duraiappah A, Larigauderie A, 2013. Evolution of natural and social science interactions in global change research programs. PNAS, 110(Suppl.1): 3665-3672.
Rindfuss R, Walsh S, Turner B L et al., 2004. Developing a science of land change: Challenges and methodological issues. PNAS, 101: 13976-13981.
Sterling S M, Ducharne A, Polcher J, 2012. The impact of global land-cover change on the terrestrial water cycle. Nature Climate Change, 3(4): 385-390.
Tian H Q, Chen G, Zhang C et al., 2012. Century-scale response of ecosystem carbon storage to multifactorial global change in the Southern United States. Ecosystems, 15: 674-694.
Turner B L, Skole D, Sanderson S et al., 1995. Land Cover Change Science/Research Plan, IGBP Report No.35, HDP Report 7. IGBP of the ICSU and HDP of the ISSC, Stockholm and Geneva.
Zhang Z X, Zhao X L, Wang X et al., 2012. Remote sensing monitoring of land use in China. Beijing: Star Maps Publishing. (in Chinese)
Zhou L S, 1993. Theories and Practices on Agricultural Division of China. Hefei: University of Science and Technology of China Press. (in Chinese)
/
| 〈 |
|
〉 |