摘要
为进一步探究生物量观测技术开展甘蔗碳汇能力的变化,本研究基于2022~2024年广西甘蔗主产区的野外试验点和小区试验场的生物量观测数据,分析了甘蔗碳汇能力的变化特征及其影响因素。研究发现,甘蔗地上部分固碳量在5~10月逐月增加,11月略有下降,最低值为5月的0.007t/hm^(2),峰值为10月的0.065t/hm^(2)。不同年份、植期和地区的固碳量存在显著差异,宿根蔗在生长初期固碳量高于新植蔗,而新植蔗在成熟期固碳能力更强。低纬度地区固碳量更高,表明气候条件对固碳能力有重要影响。研究结果为优化甘蔗种植管理、提升碳汇能力提供了科学依据。
To further investigate changes in sugarcane carbon sequestration capacity through biomass observation techniques,this study analyzes the carbon sequestration capacity of sugarcane and its influencing factors based on biomass observation data from field experiment sites and large-scale experimental fields in Guangxi’s main sugarcane-growing areas from 2022 to 2024.The results showed that the carbon fixation of sugarcane aboveground parts increased monthly from May to October and slightly decreases in November,with the lowest value of 0.007 t/hm^(2) in May and the peak value of 0.065 t/hm^(2) in October.Significant differences in carbon fixation were observed across different years,planting seasons,and regions.Ratoon sugarcane had higher carbon fixation than newly planted sugarcane during the early growth stage,while newly planted sugarcane showed stronger carbon sequestration capacity during the maturity stage.The carbon fixation was higher in low-latitude regions,indicating that climatic conditions play an important role in carbon sequestration.The findings provide a scientific basis for optimizing sugarcane planting management and enhancing carbon sequestration capacity.
作者
丁美花
陆永顺
刘武
黄立宁
陈燕丽
杨鑫
王建东
黄璐
陆思宇
孙明
黄永璘
DING Meihua;LU Yongshun;LIU Wu;HUANG Lining;CHEN Yanli;YANG Xin;WANG Jiandong;HUANG Lu;LU Siyu;SUN Ming;HUANG Yonglin(Guangxi Institute of Meteorological Sciences/Guangxi Institute of Ecological Meteorology and Satellite Remote Sensing Center,Nanning 530022,Guangxi,China;Shangsi County Meteorological Bureau,Fangchenggang 535500,Guangxi,China;Laibin Meteorological Bureau,Laibin 546100,Guangxi,China;Guangxi Sugar Industry Group Liangqi Sugar Co.,Ltd.,Hengzhou 530309,Guangxi,China)
出处
《甘蔗糖业》
2025年第3期33-40,共8页
Sugarcane and Canesugar
基金
广西重点研发项目“广西糖料蔗碳汇气象评估关键技术与应用”(桂科AB22035069)
广西科技基地和人才专项(桂科AD25069068)
气象卫星专项(FY-3-03-AS-12.14-ZT)。
关键词
甘蔗
生物量
观测试验
碳汇
Sugarcane
Biomass
Observation experiment
Carbon sequestration
