近20年来黄河沿岸济南区段缓冲带景观格局梯度分析  

Analysis of Buffer Zone Landscape Pattern Gradient in Jinan Section of the Yellow River in Recent 20 years

作　　者：尹德洁 侯冰钰 王冬薇 王皓 吴亚伟[1] 刘大亮[1] Yin Dejie;Hou Bingyu;Wang Dongwei;Wang Hao;Wu Yawei;Liu Daliang(Shandong Jianzhu University,Jinan 250101,China)

机构地区：[1]山东建筑大学,济南250101

出　　处：《中国城市林业》2022年第3期14-21,共8页Journal of Chinese Urban Forestry

基　　金：山东省自然科学基金青年项目:“新城风貌规划的理论、方法与传导机制研究”(ZR2021QE304)。

摘　　要：为探究近20年来黄河对沿岸区域发展的辐射效应以及城市建设对黄河沿岸景观格局的影响,文章以黄河沿岸济南区段5 km缓冲带作为研究区,基于2000、2010和2020年三期遥感影像数据,采用景观格局指数和梯度分析相结合的方法,系统分析济南区段景观格局时空动态变化和梯度变化特征。结果表明:1)2000—2020年,随着城镇化进程加快,济南市景观格局总体变化明显,表现为城市用地扩张与耕地缩减耦合,草地和林地急剧减少,建设用地显著增加,景观破碎度增加;2)各景观类型斑块分布趋于规则,集聚度不断增强,南北两岸各景观指数随着缓冲带外扩呈现整体上升趋势,南岸景观指数普遍高于北岸,两岸景观格局存在明显空间差异;3)人类活动对景观格局的干扰强度在2010—2020年有所加强,景观逐渐向破碎化、异质化方向发展,但在基本农田保护情境下,景观破碎化程度将逐渐得到控制。综上,城市化过程和人为干扰是影响景观格局梯度分布差异的重要因素。To explore the radiation effect of the Yellow River on the areas along the banks and the impact of urban construction on landscape patterns along the River, the paper take the buffer zone with the width of 5 km along Jinan section of the Yellow River to analyze the spatial-temporal dynamic change and gradient change characteristics of the landscape pattern along the section using the method of landscape pattern index and gradient analysis and based on the remote sensing image data from 2000 to 2020. The results show that: 1) From 2000 to 2020, when the urbanization process has accelerated, the overall landscape pattern in Jinan changed obviously, i.e., the expansion of urban land coupling with the reduction of cultivated land, sharp decrease of grassland and forest land, significant increase of construction land and increased landscape fragmentation;2) The patch distribution of each landscape type tended to be regular, with the continuously increasing agglomeration. The landscape index of both banks presented the overall increasing trend with the expansion of buffer zone. The landscape index of the south bank was generally higher than that of the north bank, and there were obvious spatial differences in the landscape pattern of the two banks;and 3) From 2010 to 2020, human disturbances’ invention to the landscape pattern went stronger, and the landscape gradually tended towards fragmentation and heterogeneity. However, in the context of basic farmland protection, the landscape fragmentation has gradually been controlled. Generally, urbanization and human disturbance are the important factors affecting the gradient distribution of the landscape pattern.

关 键 词：缓冲带 景观指数 梯度分析 黄河沿岸济南区段 

分 类 号：P901[天文地球—自然地理学]