2000—2018年上海顾村郊野森林公园景观格局演变及其影响因素研究

Evolution Characteristics of Landscape Patterns and Related Affecting Factors in Gucun Countryside Forests Park of Shanghai from 2000 to 2018

  • 摘要: 基于2000年、2006年、2012年、2018年4个时相的航空遥感影像,采用动态变化、景观指数和偏最小二乘回归分析方法,对上海顾村郊野森林公园景观格局演变特征及其影响因素进行分析。结果表明:顾村郊野森林公园18 a间景观变化属慢速变化型,占优势的景观基质由农田斑块类型变为林地斑块类型,林地呈快速增加趋势,农田和居住用地呈快速减少趋势;顾村郊野森林公园不同研究时段最稳定的景观类型为林地斑块,各种非林地斑块的主要转出类型均为林地,林地的主要来源为农田和居住用地;景观格局指数变化结果表明,顾村郊野森林公园景观呈现破碎化增强的趋势,景观异质性增强;从影响因素分析来看,人口密度和居民可支配收入等社会经济因素是影响研究区景观格局变化的主要因素。研究结果可为城市郊野森林的可持续经营和合理利用提供参考。

     

    Abstract: Based on the 4 time-phase aerial remote sensing image data in 2000, 2006, 2012 and 2018, the dynamic evolution characteristics of the landscape pattern and its affecting factors in Gucun countryside forest park were analyzed, by using the methods of dynamic change analysis, landscape indices analysis and partial least squares regression analysis. The results revealed that the change of landscape from 2000 to 2018 in Gucun countryside forest park belonged to a slow-changing type. The dominant landscape matrix changed from farmland patch type to forest patch type, indicating that the forestland increased rapidly, while the farmland and residential land decreased rapidly. The most stable landscape type in Gucun countryside forest park in different study periods is forest patches, and the main transfer-out type for most landscape was forestland. The main source of forestland was farmland and residential land. The landscape indices showed the consistently increasing trend of the landscape fragmentation and landscape heterogeneity. The influencing factors indicated thatpopulation density and disposable income of residents were the main driving factors influencing the landscape pattern change in the study area. The paper can provide a reference for the sustainable management and rational use of urban countryside forests.

     

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