Mapping human pressure in China and implications for biodiversity conservation

Abstract

Protected areas (PAs) are crucial for supporting biodiversity and ecosystem services, but human pressure increasing within PAs, which remain poorly understood, will undermine this. Here, we used the human modification model to map the comprehensive human pressure for China and analyze its changes in nature reserves (NRs, the primary category of PAs in China) during 2000–2020. We found that human pressure within NRs showed decreasing trends with fluctuations, far lower than the whole country. But in eastern and northeastern China, human pressure within NRs has been increasing since 2000. NRs in China can be classified into the national, provincial, prefectural, and county levels, and an individual NR can be further classified into strictly protected core zones, buffer zones allowing limited human use, and experimental zones that examine different land uses. The stricter the management level of the NRs, the lower the human pressure. Our results show substantial progress in China's NRs management, but existing conservation actions are not enough for conservation targets. Strictly conservation areas must be expanded to promote conservation planning and complimented by multi-coordinated regional policy for biodiversity conservation.