摘要
综合国内外碳汇核算方法,围绕矿山地形地貌与植被分布特征,试验采用国际先进的热比法茎流仪与水分利用效率模型相结合的技术方法,对昆阳磷矿矿山生态修复区进行植被固碳释氧量监测计量。选取生态复垦区12个位点的优势树种作为试验研究对象,结果表明随着海拔的升高,不同树种的蒸腾速率呈逐渐增加的趋势。植株的液流速率与蒸腾速率呈显著相关性。不同海拔高度与树种对植株碳汇量有显著影响,滇朴的单位面积碳汇量最高,干香柏、旱冬瓜、鹅掌楸之间无显著性差异,而雪松的单位面积碳汇量最低。
Comprehensive domestic and foreign carbon sink accounting methods,around mine topography and vegetation distribution characteristics,the experiment used the internationally advanced heat ratio method combined with a water use efficiency model to monitor the measurement of carbon sequestration and oxygen release from vegetation in the ecological restoration area of the Kunyang phosphate mine.The dominant tree species at 12 sites in the ecological reclamation area were selected for the experimental study,the results showed that the transpiration rate of different tree species tended to increase gradually with increasing altitude.The sap flow rate of the plants was significantly correlated with the transpiration rate.Different altitudes and tree species had significant effects on the carbon sink of the plants,with the highest carbon sink per unit area for Celtis yunnanensis,but there was no significant difference among Dride cedar,Drought white gourd and Librodendron,while Cedar had the lowest carbon sink per unit area.
作者
罗安荣
杨植
刘娉
郭兴隆
史鑫
肖亚楠
王春雪
LUO Anrong;YANG Zhi;LIU Ping;GUO Xinglong;SHI Xin;XIAO Ya-nan;WANG Ghunxue(Yunnan Phosphate Chemical Group Co.Ltd/National Engineering Research Center of Phosphorus Resources Development and Utilization,Kunming Yunnan 650600)
出处
《山东林业科技》
2023年第1期15-20,共6页
Journal of Shandong Forestry Science and Technology
关键词
碳汇核算
液流速率
蒸腾速率
碳汇
carbon accounting
sap flow rate
transpiration rate
carbon sink
