LI Yueyue, HUANG Yixiong, YANG Yang, et al. Temporal and Spatial Characteristics of Coastal Ecological Risk in Fujian Province Based on Landscape Structure[J]. Bulletin of Soiland Water Conservation, 2018, 38(4): 241-246.
DOI:
LI Yueyue, HUANG Yixiong, YANG Yang, et al. Temporal and Spatial Characteristics of Coastal Ecological Risk in Fujian Province Based on Landscape Structure[J]. Bulletin of Soiland Water Conservation, 2018, 38(4): 241-246. DOI: 10.13961/j.cnki.stbctb.2018.04.039.
Temporal and Spatial Characteristics of Coastal Ecological Risk in Fujian Province Based on Landscape Structure
[Objective] Studying the law of regional ecological risk changes in coastal areas in order to provide theoretical reference for ecological rehabilitation.[Methods] Taking the coastal area of Fujian Province as the research object
using geostatistical analysis and spatial auto-correlation analysis method with ArcGIS and Fragstats software
we constructed a landscape ecological risk assessment model based on the ecological environment vulnerability and loss degree of land use change. The distribution of ecological risk levels in the study area and the spatial correlation of ecological risks were analyzed.[Results] The areas of construction land
forest land
and water area all showed an upward trend
and the areas of shrubs
grassland
cultivated land
mudflats
and unused land all showed a downward trend
and the degree of fragmentation got worsened
the degree of separation was increased. The degrees of fragmentation and separation gradually decreased
and the geographical distribution gradually became concentrated. The spatial distribution of ecological risks in 2000-2013 was roughly in a banded pattern
and the areas at low
lower
and middle ecological risk levels all increased but with different increments. The areas at high and higher ecological risks both had been reduced to some extent. The ecological risk index in the study area had a strong agglomeration effect in space
and the spatial distribution of ecological risk indexes was mostly in high-high and low-low patterns.[Conclusion] The overall ecological risk showed a downward trend
and the ecological environment gradually improved. However
the landscape ecological problems are still severe. Therefore
the government departments must pay attention to the local ecological environment while developing economy
and realize the coordinated development of economy and ecological environment.
Harwell M A, Gentile J H, Bartuska A, et al. A science-based strategy for ecological restoration in South Florida[J]. Urban Ecosystems, 1999,3(3/4):201-222.
Iroumé A, Huber A, Schulz K. Summer flows in experimental catchments with different forest covers, Chile[J]. Journal of Hydrology, 2005,300(1):300-313.