摘要
在RS和GIS技术支持下,解译福州国家森林公园4期遥感影像,对福州国家森林公园景观格局进行量化分析并探究其影响因素。结果表明,1)阔叶林地面积呈增加趋势、针叶林地面积保持稳定、竹类面积呈减少趋势、混交林面积呈先增后减趋势、建设用地面积呈先减后增趋势。2)各类型斑块呈异质性分布,其中混交林地破碎化程度最大,针叶林地破碎化程度最小;森林景观水平优势斑块在2002年发生较大波动后恢复稳定,破碎化程度呈先增后减趋势,生态多样性先减少后呈现均衡化发展趋势。3)景观格局演变受自然和社会经济因素共同影响。自然因素对植被分布特性影响较大,对景观格局影响较小;第一产业、人口数量和地区总产值对景观格局影响最大。
With the support of RS and GIS technology, remote-sensing images of four periods of of Fuzhou National Forest Park were interpreted. The landscape patterns and affecting factors of the park was ana- lyzed quantitatively. The results showed that 1） the area of broad-leaved forests increased,and the area of coniferous forests remained stable, while the area of bamboo decreased, and the area of mixed forests in- creased first and then decreased, similarly, the area of construction land decreased first and then increased. 2） All types of patches showed heterogeneous distribution,among which mixed forests had the highest de- gree of fragmentation,and the lowest for coniferous forests; the patches with horizontal dominance of for- est landscape restored stability after a big fluctuation in 2002,besides, the degree of its fragmentation in- creased first and then decreased,and ecological diversity decreased first and then presented a trend of bal- anced development. 3） The evolution of landscape pattern was influenced by both natural and social eco- nomic factors. Natural factors had great influence on the distribution characteristics of vegetation,and had little influence on the landscape pattern. Primary industry, population and total value of output of areas had the strongest influence on landscape pattern.
出处
《西北林学院学报》
CSCD
北大核心
2017年第6期169-177,共9页
Journal of Northwest Forestry University
基金
国家科技支撑计划课题(2014BAD15B01)
国家林业局"森林公园工程技术研究中心开放课题"(PTJH1500206)
