洛南县森林生态系统净化大气效益价值评估

Evaluation of Benefit Value of Forest Ecosystem in Luonan County

摘要: 通过森林资源二类调查数据，依据国家林业局2008年发布实施的《森林生态系统服务功能评估规范》(LY/T1721-2008)，对洛南县森林生态系统固碳、释氧、净化SO₂和滞尘4项净化大气效益进行初步评估。结果表明：研究区森林生态系统净化大气总效益为21.65亿元/a，其中年固碳30.76万t，效益3.69亿元。年释氧82.349万t，效益8.23亿元。年净化SO₂ 2.63万t，效益0.316亿元。年滞尘627.391万t，效益9.41亿元。森林生态系统净化大气效益非常显著。

Abstract: According to the forest ecosystem service function evaluation standard (LY/T1721-2008) issued and implemented by the state forestry administration in 2008, four atmospheric benefits of forest ecosystem carbon fixation, oxygen release, sulfur dioxide purification and dust retention in Luonan County were preliminarily evaluated. The results show that the total benefit of the forest ecosystem in the study area is 2.265 billion yuan/a, of which the annual carbon sequestration is 30.76 million tons and the benefit is 369 million yuan. 823,490,000 tons of oxygen was released annually, and the benefit was 823 million yuan. 2.63 million t SO₂ is purified annually, and the benefit is 0.316 billion yuan. 6273.91 million t dust-retention is accomplished one year, and the benefit is 941 million yuan. The benefits of clearing the atmosphere from forest ecosystems are remarkable.