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Geo-spectrum characteristics of land use change in Liaoning coastal areas.

CHANG Xiong-kai1, LIU Miao2**, LI Chun-lin1, LU Jiu-jun3, CHEN Tan1,4   

  1. (1College of Wildlife Resource, Northeast Forestry University, Harbin 150040, China; 2State Key Laboratory of Forest and Soil Ecology, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China; 3Liaoning Academy of Environmental Sciences, Shenyang 110161, China; 4University of Chinese Academy of Sciences, Beijing 100049, China)
  • Online:2015-12-10 Published:2015-12-10

Abstract: The geospectrum of land use change has drawn much attention in recent years due to its simultaneously reflecting both the spatial and temporal processes of land use change. In this paper, we analyzed the geospectrum characteristics of land use change from 2000 to 2010 in Liaoning coastal areas. The results showed that the main geospectrum types of land use change from 2000 to 2005 were cultivated landSymbolnB@construction land, followed by seaSymbolnB@wetland, accounting for 44.41% and 18.16% of the total area converted, respectively. The majority of geospectrum types of land use change from 2005 to 2010 were conversions from sea, wetland and cultivated land, among which seaSymbolnB@wetland accounted for 23.43% of the total area converted, seaSymbolnB@bare land 22.69%, seaSymbolnB@construction land 5.10%, wetlandSymbolnB@construction land 10.06% and cultivated landSymbolnB@construction land 20.55%. The main geospectrum mode of land use change from 2000 to 2010 was formerchange type as dominated by urban expansion and marine aquaculture from 2000 to 2005, followed by laterchange type as dominated by further development and urban expansion from 2005 to 2010, accounting for 70.34% and 29.17% of the total area converted, respectively.

Key words: optimal model, Larix olgensis, net photosynthetic rate, dark respiration rate., photosynthesis-light response curve, light compensation point, light saturation point