内蒙古草地碳汇潜力估测及其发展对策

Estimation on grassland carbon sink potential and development countermeasure in Inner Mongolia

草地固碳潜力巨大,而我国北方草地退化现象严重,恢复和保护草地资源,增强草地植被和土壤固碳增汇潜力,需要制定相应的发展对策。本研究通过分析内蒙古草地退化的现状,对不同类型草地的固碳增汇潜力进行了评估,估算出内蒙古退化草地的增汇潜力为每年45.86Tg,潜在的自然碳汇价值可达到每年119亿元。根据不同管理措施下草地固碳潜力的评估结果,预测了草地碳汇的收益前景,在分析完善草地碳汇机制和政策有利条件的基础上,提出探索和建立促进牧区发展,使牧民增收的长效机制的相关建议。

Grassland degradation is a serious issue in northern China, while the carbon sequestration potential of grassland is great, enhancing plant and soil carbon sequestration potential of grassland, recovering and protecting grassland need to make corresponding development countermeasures. Based on the analysis of the present situation of grassland degradation in Inner Mongolia, the carbon sequestration potential of different grassland types is assessed and estimated, the carbon sequestration potential of degraded grassland in Inner Mongolia is 45.86 Tg C per year and natural carbon value of grassland is 11.9 billion yuan per year. According to the evaluation results of carbon sequestration potential of grassland under different management measures, earnings of grassland carbon sink is forecasted, the favorable conditions to perfect grassland carbon mechanism and policy are analyzed, and suggestions on exploring and establishing long- term mechanism to promote the development of pastoral and herders＇ income are raised.