京津风沙源治理工程生态效益评估——以翁牛特旗为例

Ecological Benefit Assessment of the Beijing-Tianjin Sandstorm Source Control Program——A Case Study of Ongniud Banner in Inner Mongolia

通过以实地调查和京津风沙源治理工程建设任务及投资数据为基础,以县域土地利用及社会经济相关数据作为参考,对内蒙古翁牛特旗京津风沙源治理工程生态效益进行了全面评估。结果表明,内蒙古翁牛特旗森林生态系统服务主要是水源涵养、保护生物多样性和固碳释氧,占总服务价值的86.1%。京津风沙源建设工程在遏制沙化土地蔓延和改善周边区域环境质量等方面效果显著。京津风沙源治理工程在生态、经济、社会方面的贡献巨大,工程建设取得了较好的成效。

In this paper, on the basis of field investigation and construction tasks and investment data of the Beijing-Tianjinsandstorm source control program, with reference to the data related to the county-scale land use and social economy, ecologicalbenefits of the Beijing-Tianjin sandstorm source control program within Ongniud Banner, Inner Mongolia were overall assessed. Theresults showed that ecosystem service functions of the forests in Ongniud Banner were mainly composed by water conservation,biodiversity protection and carbon sequestration and oxygen release, accounting for 86.1% of the total service value. Effects of theprogram were remarkable on suppression of the desertification land extension and improvement of the environmental quality in thesurrounding regions. Therefore, this program contributed greatly from the ecological, economic and social aspects, with significantbenefits achieved from the project construction.