Regulation simulation of land‐use ecological security, based on a CA model and GIS: A case‐study in Xingguo County, China

Abstract

Ecological land is constantly modified by agriculture and construction, which leads to soil erosion, land degradation, soil pollution flood disasters, and many other land ecological security problems, threatening sustainable development. Few studies have been made to construct a land‐use ecological security pattern (LUESP) aimed at achieving urban expansion, food security, and ecological security from the perspective of land‐use needs. This study seeks to provide decision makers with the choice of multi‐scenario LUESPs by simulating the LUESP under different scenarios, offering a reasonable land‐use ecological security regulation strategy. In this paper, the ecological security evaluation method was used to identify key ecological space of a study area and the scenario analysis method was used to set up three security scenarios: ideal security (IS) scenario, satisfactory security (SS) scenario, and bottom‐line security (BS) scenario, thereby constructing the constrained cellular automata (CA) model of the LUESP and simulating the LUESPs under three security scenarios for Xingguo County, China. The results showed that the LUESP construction land index and arable land index did not exceed the total amount of the General Plan of Land Use in Xingguo County under the three security scenarios. Moreover, both key ecological space loss and landscape fragmentation degree were greatly reduced, the ecological patches tend to cluster, and the anti‐jamming ability of the landscape pattern was enhanced. The ranking of LUESPs under three security scenarios was as follows: BS scenario > SS scenario > IS scenario. These results implied that the LUESPs met the demand for land in Xingguo County for ecological security, food security, and economic development, while space occupied is different under three security scenarios. The decision makers can adopt appropriate land‐use ecological security regulation strategies according to the future development plans of the region.

Constructing the Landscape Ecological Security Pattern in the Dawen River Basin in China: A Framework Based on the Circuit Principle

“…The elements of the patterns can include land use, land cover, vegetation, topography, and hydrology, among other variables. By understanding the relationships between these elements, it is possible to identify key drivers of landscape change and to develop strategies for promoting landscape ecological security [ 35 ].…”

Directions of land degradation in the greater Istanbul metropolitan area: A view from four decades

“…Preserving these resources becomes paramount in ensuring landscape stability and sustaining biodiversity's equilibrium. Additionally, studies by Xie et al (2022), Song et al (2021), and Sun et al (2020) provide insights into LD's connection with urbanization, impacting ecological security, vegetation growth, and land cover changes. Sun et al's (2020) analysis of global urbanization patterns highlights the uneven distribution of urban growth across different economic levels and underscores the need for systematic monitoring to achieve sustainable development goals.…”

Developing SWAT‐S to strengthen the soil erosion forecasting performance of the SWAT model

“…Long‐term soil erosion not only leads to loss of good quality soil and reduction in land productivity but also causes non‐point source pollution water body eutrophication through the runoff and sediment carrying pesticides, nitrogen and phosphorus. In addition, severe soil erosion may induce natural disasters, all of which are harmful to the ecological construction and economic development of the region (Borrelli et al, 2017; Sartori et al, 2019; Xie et al, 2022). Therefore, the accurate and efficient forecasting of soil erosion is crucial for effective basin management.…”