Spatiotemporal variations of ecosystem service values and landscape ecological risk and their correlation in forest area of Loess Plateau, China:A case study of Ziwuling region.

doi:10.13287/j.1001-9332.202105.030

Abstract

Abstract: Although the awareness of ecosystem services provided by natural landscape is increa-sing, few studies integrate ecosystem services value (ESV) into ecological risk management and its control. With Ziwuling region as an example, we carried out the gridding resampling of landscape pattern types in the forest area of Ziwuling region in 1980, 1990, 2000, 2010 and 2017. We quantified the ESV and landscape ecological risk and their spatiotemporal variations, based on the 2.5 km×2.5 km grid. The spatial correlation between the ESV and landscape ecological risk was examined. The results showed that the ESV decreased from the center to the outside of Ziwuling region, which increased from 12.345 to 12.633 billion yuan from 1980 to 2017. The landscape ecological risk increased from the center to the outside edge of Ziwuling region, indicating that the landscape ecological risk of Ziwuling region was reduced and the overall ecological situation was improved. There was a significant negative correlation and negative spatial correlation between ESV and landscape ecological risk in this area. The high value-low risk area was mainly located in Ziwu-ling forest area, while the ESV might be maintained in the future.

Key words: ecosystem service value, landscape ecological risk, spatiotemporal change, correlation, Ziwuling region

JIN Tian-tian, ZHANG Yun-xia, ZHU Yue-hua, GONG Jie, YAN Ling-ling. Spatiotemporal variations of ecosystem service values and landscape ecological risk and their correlation in forest area of Loess Plateau, China:A case study of Ziwuling region.[J]. Chinese Journal of Applied Ecology, 2021, 32(5): 1623-1632.

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