Study on Vegetation Restoration Dynamics on Sides of Expressway—A Case Study of Fuzhao Expressway from Fuzhou to Xianyou

doi:10.13466/j.cnki.lyzygl.2018.05.020

Abstract

Abstract:

In this paper,the Landsat series satellite images from 2010,2013 and 2016 are selected as the main data sources.Taking the Fuzhao high-speed section from Fuzhou to Xianyou as an example,the vegetation restoration dynamic change before and after the construction of the road section(2010—2016) is evaluated by using the vegetation normalization index.The results show that the annual vegetation NDVI fluctuates between 0.21 and 0.42 in 2010—2016,the maximum value is 0.42 in 2010,and the minimum value is 0.21 in 2016.In 2010—2013,due to the construction of Fushun Expressway,the vegetation degradation area of the road zone reached 66.95%,and the proportion of good ecological grade decreased from 58.96% to 20.35%.The vegetation degraded only 16.23% in 2013—2016,which is obviously less than that in 2010—2013.The proportion of excellent grade has increased from 20.35% to 35.08,which is closely related to the gradual attention paid to the ecological restoration of road zone in Fuzhou in recent years.

Key words: NDVI, road zone, vegetation, ecology grade, restoration

CLC Number:

YAO Jixue, QIU Rongzu, LIN Yuying, WANG Jiankai, YE Limin, HU Xisheng. Study on Vegetation Restoration Dynamics on Sides of Expressway—A Case Study of Fuzhao Expressway from Fuzhou to Xianyou[J]. FOREST RESOURCES WANAGEMENT, 2018, (5): 128-133.

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植被情况	2010年	2013年	2016年
差	0.71	39.79	27.65
较差	0.69	18.98	17.57
中等	39.64	20.88	19.70
良好	21.52	6.95	20.51
优	37.44	13.40	14.57
合计	100.00	100.00	100.00

类别	2013—2010面积比例	2016—2013的面积比例
退化	66.95	16.23
不变	33.01	83.00
改善	0.04	0.77