摘要
于2007年10月利用LI-8100开路式土壤碳通量测量系统,定位测定福州郊区柑橘果园翻耕和生草2种干扰措施下土壤呼吸的变化规律,为农业温室气体减排和提高土壤碳固定提供参考。结果表明:翻耕造成柑桔果园生态系统土壤呼吸速率的增加,在试验期内翻耕使土壤CO2排放量提高了49.0%。套种豆科牧草使土壤呼吸速率提高了26.24%,但果园生草处理使系统有机碳库增加了3400.0kg.hm-2。
The soil respiration under the conditions of tillage and grass intercropping in Citrus reticulate Orchard in Fuzhou were measured continuously with LI-8100 automated soil CO2 flux system on October,2007.It could provide some references for researching agricultural greenhouse.The results showed that tillage significantly made soil respiration rate increase in citrus orchard ecosystem.Soil respiration increased by 49.0% in the field experiment.Although soil respiration increased by 26.24% by intercropping grass in orchard,but carbon storage of the ecosystem also increased by 3400.0kg·ha-1.
出处
《中国农业气象》
CSCD
2010年第S1期20-22,26,共4页
Chinese Journal of Agrometeorology
基金
国家科技支撑计划项目(2008BAD95B08)
福建省科技计划项目(200910036-4)
福建省农科院创新团队项目(STIF-Y01)
关键词
果园
翻耕
生草
土壤呼吸
Orchard
Tillage
Grass intercropping
Soil respiration
