[1]DUAN Zheng,SONG Xian-feng,SHI Min-jun.Changes of Spatial Landscape Pattern and Driving Forces in Miyun County During 1992-2006[J].Research of Soil and Water Conservation,2009,16(05):55-59.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
16
Number of periods:
2009 05
Page number:
55-59
Column:
Public date:
2009-10-20
- Title:
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Changes of Spatial Landscape Pattern and Driving Forces in Miyun County During 1992-2006
- Author(s):
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DUAN Zheng1, SONG Xian-feng1,2, SHI Min-jun1,2
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1. College of Resources and Environment, Graduate University of Chinese Academy of Sciences, Beijing 100049, China;
2. Research Center on Fictitions Economy and Data Science, CAS, Beijing 100080, China
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- Keywords:
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remote sensing image; land use; landscape pattern; Miyun county
- CLC:
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F301.24;TI79
- DOI:
-
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- Abstract:
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Based on the land use maps interpreted from remote sensing images taken in 1992,1999 and 2006,the changes of landuse and landscape in Miyun County during 1992 to 2006 were studied at aspects of landscape pattern and landscape level using the landscape indices such as fractal dimension,landscape diversity,eveness and dominance and so on.The results show that spatial landscape pattern has changed significantly during the research phase.That is,the woodland and construction land area increased while the cropland,grassland,water area and unused land decreased.The cropland decreased by 118.07km2 from 1992 to 2006,the woodland has become the landscape matrix of Miyun County,which reached 50.75%,58.98% and 63.91% in the three phases respectively.The area of water body changed little from 1992 to 1999,but decreased by 57.14km2 in the period between 1999 and 2006.The construction area almost doubled over the three stages with a total area of 72.45km2 in 1992 while 141.28km2 in 2006.According to the mean fractal dimension indices,the complexities of the woodland,cropland and construction land decreased,while increased those of the grassland,water area and unused land which indicated that the degree of management from human was enhanced.At the landscape level,the landscape Shannon’s diversity index decreased from 1.2068 to 1.1099 and the eveness index increased to 0.6818,which indicated that the landscape heterogeneity reduced and the capacity of dominating the whole landscape by woodland was enhanced.Through the analysis of data collection of economic and social statistics,we finally conclude that dynamic change of landscape pattern is highly related to regional climate change,population structure,industrial pattern and environmental protection policy.In conclusion,the ecological environment in Miyun County was improved significantly due to the reasonable policy and soil and water conservation measures,however,the water-body area has shrinked dramatically due to long-term drought,so a great attention should be paid to the planning of water use.