摘要
湿地生态系统碳储量丰富,对减缓全球气候变暖起着重要的作用。以扎龙湿地为例,基于CASA(Carnegie-Ames-Stanford Approach)估算模型,分别对扎龙湿地的植物固碳和土壤碳储存价值进行了评价,并探讨了扎龙湿地固碳价值的空间分布特征。结果表明,2011年扎龙湿地的固碳总价值约9.8亿元,其中植物固碳价值2.4亿元,土壤碳储存价值7.4亿元。从景观类型看,沼泽的单位固碳价值最大,为5993.4元·hm-2,其后依次为草甸、耕地、其他和水域。扎龙湿地的固碳价值总体上呈中间高、四周低的趋势,保护和恢复扎龙湿地的沼泽生态系统,加强对扎龙湿地周边的保护和管理对提高扎龙湿地的固碳能力有积极的意义。
As its abundant carbon storage, wetland ecosystem plays an important role in slowing down global climate warming. Taking Zhalong wetland as an example, the carbon sequestration values of both plant and soil were assessed, based on Carnegie-Ames-Stanford Approach model （CASA）. The results showed that the total value of carbon sequestration of Zhalong wetland was 0.98 billion Yuan in 2011, of which 0.24 billion Yuan for plant, and 0.74 billion Yuan for soil. The carbon sequestration value of marsh per unit area was the largest in all kinds of landscape types, being 5993.4 Yuan per hectare, followed by meadow, cultivated land, other types and open waters. Carbon sequestration value of Zhalong wetland was higher in the center than in periphery areas. Protecting and restoring the marshes of Zhalong wetland would have a positive in- fluence on its carbon sequestration ability.
出处
《生态学杂志》
CAS
CSCD
北大核心
2014年第8期2078-2083,共6页
Chinese Journal of Ecology
基金
林业公益性行业科研专项(201204201)资助
关键词
固碳能力
价值评估
扎龙湿地
carbon sequestration
valuation
Zhalong wetland
