热带地理 ›› 2017, Vol. 37 ›› Issue (1): 19-24.doi: 10.13284/j.cnki.rddl.002916
孙 婷a,邓飞艳a,b,焦树林a
出版日期:
2017-01-05
发布日期:
2017-01-05
通讯作者:
焦树林(1969―),男,湖南邵阳人,教授,博士,主要研究方向为流域地表过程和环境变化,(E-mail)jslzsu@126.com
作者简介:
孙婷(1962―),女,贵州贵阳人,副教授,硕士,主要研究方向为区域经济与环境,(E-mail)1297285024@qq.com
基金资助:
SUN Tinga,DENG Feiyana,b,JIAO Shulina,b
Online:
2017-01-05
Published:
2017-01-05
摘要:
为了研究土地利用等人类活动对岩溶作用碳汇的影响规律,采用野外调查和遥感影像相结合的方法,获取2个毗邻的典型喀斯特特小流域土地利用数据特征。利用现场实测水体理化参数,采用径流系数法分别计算其碳汇通量和碳汇强度。对比分析两流域的土地利用类型和岩溶碳汇强度的差异,结果显示:1)陈旗和灯盏河2个喀斯特流域的化学风化碳汇具有显著的季节变化特征,其碳汇强度分别为1.24×106和1.44×106 mol/(km2•a)。2)流域内土地利用类型及其上、下游配置关系,尤其是水田的上、下游配置差异,是导致岩溶作用碳汇强度差异的重要原因。人类活动是调控岩溶作用碳汇的有效途径之一。
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