基于NPP模型的北京市分区碳氧平衡分析

发布时间：2018-02-21 00:18

  本文关键词： 植被净初级生产力 固碳释氧 碳氧平衡 北京市 功能区　出处：《生态经济》2016年02期 　论文类型：期刊论文

【摘要】：为了更好地了解城市的碳氧平衡状况,利用NDVI数据、能源消费数据,基于NPP模型,碳排放与氧消耗估算模型以及箱式模型计算北京市及各区的碳氧收支状况。结果表明:(1)研究区11年平均固碳释氧量由城市中心区向外围逐渐降低;(2)碳排放量与氧消耗量2010年较2000年增加幅度较大,碳排放量11年增加了2284.1161×104 t;氧消耗量增加了4334.59×104 t。2010年各区碳排放量与氧消耗量所占比重差别较大,城市拓展区与发展区分别占到总量的41.67%、40.27%;城市中心区与涵养区比重较小分别为10.19%、7.87%。(3)从研究区年碳氧收支状况来看,2010年碳氧失衡较2000年严重;分区来看,城市拓展区在总量与单位面积上失衡最严重,涵养区失衡最弱;其他区域在总量与单位面积失衡方面有一定差别。
[Abstract]:In order to better understand the carbon and oxygen balance of cities, using NDVI data, energy consumption data, based on NPP model, The carbon emission and oxygen consumption estimation model and the box model were used to calculate the carbon and oxygen budget in Beijing and various districts. The results showed that the average carbon sequestration and oxygen release in the study area decreased gradually from the central area to the periphery of the city. The increase in consumption in 2010 was greater than that in 2000, Carbon emissions increased by 2284.1161 脳 104t in 11 years, and oxygen consumption increased by 4334.59 脳 104t.2010. The proportion of urban development area and development area is 41.67 and 40.27, respectively; the proportion of urban center area and conserved area is 10.197.87.3.According to the annual carbon and oxygen budget in the study area, the carbon-oxygen imbalance in 2010 is more serious than that in 2000. The imbalance between the total amount and the unit area is the most serious in the urban development area, and the imbalance between the total amount and the unit area is the weakest in the conservation area, while there are certain differences between the total amount and the unit area imbalance in the other regions.
【作者单位】： 河北师范大学资源与环境科学学院河北省环境演变与生态建设重点实验室;河北师范大学旅游系;
【基金】：国家社会科学基金项目(15BJY026) 国家自然科学基金青年科学基金项目(41301122)
【分类号】：X16
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本文编号：1520452