Abstract
The ecological value, cultural value, economic value and industrial value of the county space, where a variety of human activities and natural ecological processes are carried out, act as the key elements considered in county spatial planning. However, there is a lack of carrying space for integrating these values in the actual Chinese county construction. In this article, the construction of a county greenway network is based on multiple needs, such as ecological protection, characteristic landscape, leisure and recreation. The ecological, cultural and economic values of resources are taken as the basis of identifying a greenway network. We establish the gravitation-resistance model to measure network flow based on the attraction and resistance between resources. In particular, by means of network flow analysis and the geographic information system (GIS), the resistance and gravity are assigned to the resources and landscapes, respectively. The attraction between elements is then measured using the gravitation-resistance model. The distribution of resources and the trend of integration are analyzed by the combination of the centrality of resources and the ratio of supply to demand. Based on the analysis results of network flow, the paper puts forward a strategy for developing a county greenway network, and improves the scientific evaluation of the spatial resource. It provides a new perspective for the construction of a county greenway network.
Highlights
Green spaces have been an important part of the urban and rural environment, making a positive impact on public health by providing sports activities and social network promotion
The multi-value of resources is integrated into the concept of the network and the traditional single line space of the greenway is broken in the process of connecting resources in a series
The multi-functional greenway integrates the functions of ecology, recreation, culture, society, aesthetics and economy [59]
Summary
Green spaces have been an important part of the urban and rural environment, making a positive impact on public health by providing sports activities and social network promotion. In the construction of public spaces, the greenway, as an important network system connecting ecological and landscape functions, meets the needs of landscape upgrading and resources reorganization to a certain extent and plays an essential role in multi-functional planning in most areas [7,8]. Experts in related fields are invited to score the functions involved in related research to obtain the weight of each resource [21] With such diversity, comprehensive benefits can be multiplied by the complex ecological, cultural and economic values [22]. The generation of the network and function flow are calculated by the gravity and resistance between resources This is a calculation similar to the gravitational model, which can reveal the relationship between elements directly and clearly using the concept of network flow [39]. We conducted a wide survey of all resources in Ning’an to select the suitable resources for the greenway network; the structure was measured using network structure abstract analysis, and the scheme of the structure reconstruction was proposed; the emphasis of this method is the realization of the structure reconstruction, which was illustrated by the planning of a greenway line location using GIS
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