SCIENTIA GEOGRAPHICA SINICA ›› 2014, Vol. 34 ›› Issue (3): 302-308.doi: 10.13249/j.cnki.sgs.2014.03.302

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Spatial and Temporal Variation of Ecological Service Value Characteristic of Green Space System in the Downtown of Dalian

Xiang LI1,2(), Chuang LI3, Feng-you WANG1,4, Shi-yang WANG3, Xue WANG3   

  1. 1.Northeast Forestry University College, Harbin, Heilongjiang 150040, China
    2.Dalian Polytechnic University School of Art & Design, Dalian, Liaoning 116000,China
    3.Liaoning Key Laboratory of Physical Geography and Geomatics, Dalian, Liaoning 116029,China
    4.Guizhou Minzu University, Guiyang,Guizhou 550000, China
  • Received:2013-06-24 Revised:2013-12-28 Online:2014-03-10 Published:2014-03-10

Abstract:

In this article, with the downtown of Dalian City as the study area, we selected the year of 2003, 2007, 2010 and 2012’s SPOT5 and Resource One 02C satellite images as the data sources. Processing of remote sensing images with the supporting of remote sensing software, and combined with field investigation to extract the downtown area of green space, a study of spatial and temporal variation about landscape ecology service value of green space system in the downtown of Dalian was made, with the supporting of ArcGIS and combined with the principle of landscape ecology. The results show that: 1) the total area of ??green space in the downtown of Dalian decreased year by year. To 2012, the total area of ??green space decreased by 2.8%, but the fragmentation of other green space is increasing and gradually being replaced by affiliated green spaces and parks. From 2003 to 2012, the number of green space patch increased from 13632 to 14157, the density of green space patch increased; 2) the total green space landscape fragmentation index increased year by year, the distribution balance is poorer, the ecological service value of parks, roads and water green, affiliated green increase gradually, other green space decreased constantly, from 2003 to 2012, however, the ecological service value of total green space system decreased from 101.62 million yuan to 90.50 million yuan as well.

Key words: ecological services value, landscape index, green space

CLC Number: 

  • F119.8