JOURNAL OF NATURAL RESOURCES ›› 2017, Vol. 32 ›› Issue (10): 1797-1807.doi: 10.11849/zrzyxb.20160976

• Resource Evaluation • Previous Articles     Next Articles

Study on Time Scales Characteristics of Land Use Pattern Change in Songnen High Plain

WANG Yue1, 2, SONG Ge1   

  1. 1. Institute of Land Management, School of Humanities and Law, Northeast University, Shenyang 110169, China;
    2. School of Management, Shenyang Normal University, Shenyang 110034, China
  • Received:2016-09-13 Revised:2016-10-11 Online:2017-10-20 Published:2017-10-20
  • Supported by:
    National Natural Science Foundation of China, No.41571165; Fundamental Research Funds for the Central Universities, No.N151406001; Institute of Revitalizing Program of Northeast China, No.CANR-2016003

Abstract: The scale dependency and sensitivity are important characteristics of land use pattern change. Taking Bayan County in Songnen High Plain as the empirical study area, the paper extracts single band image data as the original signal from multi-band image with K-L transformation. On the optimal spatial scale of the land use pattern in the study area, the wavelet analysis model was improved with fast Fourier transform to explore the appropriate time scale of land use pattern change in the study area. The model can automatically identify the land use pattern change and clarify the volatility characteristics of land use pattern change on appropriate time and space scales. Land use transfer matrix was used to test the results of time scale. The conclusions are as follows. Firstly, the land use pattern change showed volatility characteristics on time scales of 10-20 years, 30-40 years and 40-50 years. The volatility of land use pattern change on time scale of 40-50 years was the most intensive one, followed by the volatility on time scale of 30-40 years, and the volatility on time scale of 10-20 years was the least. Secondly, the optimal time scale for analysis of land use pattern change is 36 years in the study area during 1979-2015. Land use pattern has obviously volatility characteristics around 12.33 years. The study area can be divided into three development stages: the early stage is from 1979 to 1991, the medium stage is from 1991 to 2003, and the recent stage is from 2003 to 2015. Thirdly, the global time scale and the local time scale of land use pattern change were highly consistent in the study area. Finally, the main land use types, such as dry land, woodland and construction land, underwent obvious trend of conversion in the years of 1979, 1991, 2003 and 2015.

Key words: land use pattern, Songnen High Plain, time scales characteristics, wavelet analysis

CLC Number: 

  • F301.24