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2 results on '"Yitong Miao"'

1. The Spatiotemporal Matching Relationship between Metro Networks and Urban Population from an Evolutionary Perspective: Passive Adaptation or Active Guidance?

Author

Kexin Lei, Quanhua Hou, Yaqiong Duan, Yafei Xi, Su Chen, Yitong Miao, Haiyan Tong, and Ziye Hu

Subjects
spatiotemporal evolution, metro networks, urban population, matching relationship, multi-model, Agriculture
Abstract

With the operation of the first route in Xi’an City, the matching relationship between the metro networks and the urban population is a root factor affecting the utilization of rail transit facilities. The mismatch between the metro networks and the urban population has led to an imbalance between the supply and demand for rail transport, resulting in wasted urban infrastructure. Based on this issue, the research objective is to focus on the spatiotemporal variations of the matching relationship. Firstly, the topological network model abstractly extracted metro spatial distribution features, and the spatial autocorrelation model was adopted to identify the evolution characteristics of the metro networks and urban population. Secondly, this paper adopted a time-lagged regression model to demonstrate the action relationship from 2011 to 2021. Then, the compositive coordination index was utilized to assess the variation of the global matching relationship. Finally, the paper explored spatial heterogeneity through the coupling coherence degree attached to grid cells. The research results indicate that the Moran’s I value of metro elements decreased from 0.782 to 0.510 with the further complexity of topological networks, while the population was consistently high in spatial dependence with a Moran’s I value of around 0.75 during the decade. Based on the regression coefficients and significance, this paper verified the hypothesis that the metro networks and urban population had a positive time-lagged feedback effect in urban development. From 2011 to 2021, the compositive coordination index symbolizing the global matching relationship increased from 0.29 to 0.90, but the coupling coherence degree shows significant spatial heterogeneity in different grid units. Differentiated spatial planning strategies were proposed for varied areas to efficiently utilize rail transit, which may provide a reference for other cities with the same reality problem.

Published
2024
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2. Management and Control of Agricultural Production Space in the Yanhe River Basin Based on Peasant Household Behavior

Author

Quanhua Hou, Shihan Chen, Yitong Miao, Yahui Zhang, Su Chen, Xiaoyang Fan, Yaqiong Duan, and Lingda Zhang

Subjects
Renewable Energy, Sustainability and the Environment, Geography, Planning and Development, Building and Construction, Management, Monitoring, Policy and Law, agricultural production space, peasant household behavior, spatial evolution, zoning classification, basin scale
Abstract

With increases in urbanization, agricultural production space is facing a series of problems, such as limited spatial development, loss of development entities, and difficulties in transformation, posing a huge challenge to national food security and sustainable rural development. The peasant household, as the main body in agricultural production space, plays a key role in solving human–land conflicts and achieving revitalization. In this article, we analyze the evolution characteristics of agricultural production space under the influence of peasant household behavior in the Yanhe River Basin from 1995 to 2018, and construct a spatial control system for agricultural production based on peasant household behavior guidance. Our conclusions are: (1) the agricultural production space in the Yanhe River Basin presents three major evolutionary characteristics, namely a reduction in spatial scale, a shift in the center of gravity of spatial distribution to the downstream, and a transformation of the spatial form from fragmented to regular; (2) the production input and production management behaviors of peasant households dominate the evolution of agricultural production space, while resource utilization behavior is an indirect influencing factor; moreover, peasant household behaviors are also influenced by conditions such as soil and location in agricultural production space; and (3) a control method system of “management and control basis + management and control implementation + management and control guarantee” has been formed through research, and targeted guidance has been given to peasant household behavior based on three levels of agricultural production zones and four types of rural areas. The research on zoning classification results can provide scientific guidance for the precise management of agricultural production space in the Yanhe River Basin, and the management and control method system can also provide a theoretical reference for the sustainable development path of agricultural production space.

Published
2023
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