Qiu Cai-Lin, Qiu Ning, Zhang Tian-Jie
Department of Urban and Rural Planning, School of Architecture, Tianjin University, Tianjin 300110, China.
School of Architecture and Urban Planning, Shandong Jianzhu University, Ji'nan 250000, China.
Ying Yong Sheng Tai Xue Bao. 2022 Oct;33(11):3065-3074. doi: 10.13287/j.1001-9332.202211.021.
Cultural landscapes are the products of combination of natural and human factors with constant change in response to human behavior. Exploring the impacts of construction land expansion on cultural landscapes is the key to understand the formal connotations and value characteristics of human activities interfering with cultural landscapes. In this study, we first classified the cultural landscape of the Hanjiang Delta and then used the landscape index to quantitatively describe the spatial and temporal evolution characteristics of the cultural landscape from 1980 to 2018. Finally, we analyzed the spatial effect between construction land expansion and the cultural landscape with a spatial panel econometric model. The results showed that a total of seven cultural landscape types were identified at the regional level. From 1980 to 2000, the cultural landscape pattern in the study area changed substantially, with increasing fragmentation, deepening irregularity, and increasing diversity. The proportion of regional construction land increased from 14.8% to 29.9%. The year 2000 was the cut-off point for the rate of construction land expansion, and the chronological characteristics of cultural landscape change coincided with it. There was a spatial dependency between the expansion of construction land and the change of cultural landscape. With the expansion of construction land, the sprawl town landscape in sand dike became the dominant type, and the paddy scattered historical villages, the wetland agglomeration town landscape, and the paddy wetland landscape in net river lowland faced extinction. Construction land expansion affected the local landscape pattern and had spatial spillover effects on neighboring areas. For a particular landscape type, the expansion of construction land led to a general increase in the degree of patch integration and an enhanced landscape agglomeration effect. For different types, this led to a decrease in inter-landscape sprawl, an increase in patch irregularity, and enhanced fragmentation. This study could provide a reference for the human history inheritance and ecological pattern optimization in the Hanjiang Delta.
文化景观是自然与人文因素相结合的产物，并随着人类行为的变化而不断变迁。探究建设用地扩张对文化景观的影响，是理解人类活动干预文化景观的形式内涵与价值特征的关键。本研究首先对汉江三角洲的文化景观进行分类，然后运用景观指数定量描述1980年至2018年文化景观的时空演变特征。最后，利用空间面板计量模型分析建设用地扩张与文化景观之间的空间效应。结果表明，区域层面共识别出七种文化景观类型。1980年至2000年，研究区域内的文化景观格局发生了显著变化，破碎化程度加剧、不规则性加深、多样性增加。区域建设用地比例从14.8%增至29.9%。2000年是建设用地扩张速率的转折点，文化景观变化的时序特征与之契合。建设用地扩张与文化景观变化之间存在空间依赖性。随着建设用地的扩张，沙堤上的蔓延型城镇景观成为主导类型，而水田散落型历史村落、湿地集聚型城镇景观和河网低地水田湿地景观面临消失。建设用地扩张影响了当地的景观格局，并对邻近区域产生空间溢出效应。对于特定的景观类型，建设用地扩张导致斑块整合度普遍增加，景观集聚效应增强。对于不同类型而言，则导致景观间蔓延度降低、斑块不规则性增加、破碎化加剧。本研究可为汉江三角洲的人类历史传承与生态格局优化提供参考。
