Forestry ecological security measurements and obstacle factor analysis in Yunnan

Abstract

Forestry ecological security is not only a necessary condition for sustainable development of forestry economy, but also an important guarantee for protecting biodiversity and reducing carbon emissions. It plays a crucial role in achieving high-quality industrial development and ecological civilization construction goals. The ecological security of forestry in Yunnan was examined from 2011 to 2020 using the PSR model, entropy power technique, and barrier degree model. The results show that the forestry ecological safety composite index generally shows an improving trend, rising from 0.3495 in 2011 to 0.7290 in 2020. The index of forestry industry pressure subsystem and human response subsystem has an increasing trend, with an average annual increase of 22.36% and 34.05%, respectively. The index of forest ecological subsystem is on a decreasing trend. Urban sewage discharge intensity, forestry investment, per capita GDP, per capita water resources, per capita forest area, and per capita forest fire damage area were the main obstacle factors impacting forestry ecological security in Yunnan.