本文应用生命周期评价法(LCA)对裙带菜栽培加工产业进行了全周期的碳足迹分析,明确了各环节中碳排放源的种类和数量。结果表明:裙带菜浮筏栽培加工阶段的碳排放总量为3.95×10^(5) kg CO_(2)e/百亩,高于百亩裙带菜栽培阶段形成的碳...本文应用生命周期评价法(LCA)对裙带菜栽培加工产业进行了全周期的碳足迹分析,明确了各环节中碳排放源的种类和数量。结果表明:裙带菜浮筏栽培加工阶段的碳排放总量为3.95×10^(5) kg CO_(2)e/百亩,高于百亩裙带菜栽培阶段形成的碳汇量,从全产业的尺度来看,裙带菜栽培加工产业尚不是一个碳汇产业。在裙带菜产业链中,首先为加工阶段的碳排放量最大,主要来自包装的大量使用;其次为存储阶段的碳排放,主要来自制冷设备的电耗;最后为栽培阶段的碳排放,主要来自柴油消耗。为了提升裙带菜产业的碳汇能力,建议通过改变能源形式、提高材料的使用寿命、选择低碳替代品等途径来降低裙带菜产业的碳排放量。展开更多
Dear Editor,Leber congenital amaurosis with early-onset deafness syndrome(LCAEOD,OMIM 617879)is a rare autosomal dominant syndromic disease that was first described in 2017.The TUBB4B gene,encoding the betatubulin 4B ...Dear Editor,Leber congenital amaurosis with early-onset deafness syndrome(LCAEOD,OMIM 617879)is a rare autosomal dominant syndromic disease that was first described in 2017.The TUBB4B gene,encoding the betatubulin 4B isotype,has been identified as the primary genetic cause of the disease[1].LCAEOD is characterized by night blindness,nystagmus,strabismus,hypermetropia,serious vision loss,pigmentary retinopathy,minimal or no detectable electroretinogram responses and inner-ear cell dysfunction in the first decade of life[1-3].In short,this disease combines Leber congenital amaurosis(LCA,OMIM 204000)and sensorineural hearing loss(SHL).To date,only three studies have reported cases of LCAEOD with TUBB4B mutations[1-3].Here,we present the first Chinese case of LCAEOD syndrome caused by a mutation in TUBB4B gene.展开更多
文摘本文应用生命周期评价法(LCA)对裙带菜栽培加工产业进行了全周期的碳足迹分析,明确了各环节中碳排放源的种类和数量。结果表明:裙带菜浮筏栽培加工阶段的碳排放总量为3.95×10^(5) kg CO_(2)e/百亩,高于百亩裙带菜栽培阶段形成的碳汇量,从全产业的尺度来看,裙带菜栽培加工产业尚不是一个碳汇产业。在裙带菜产业链中,首先为加工阶段的碳排放量最大,主要来自包装的大量使用;其次为存储阶段的碳排放,主要来自制冷设备的电耗;最后为栽培阶段的碳排放,主要来自柴油消耗。为了提升裙带菜产业的碳汇能力,建议通过改变能源形式、提高材料的使用寿命、选择低碳替代品等途径来降低裙带菜产业的碳排放量。
基金Supported by the National Natural Science Foundation of China(No.82271132).
文摘Dear Editor,Leber congenital amaurosis with early-onset deafness syndrome(LCAEOD,OMIM 617879)is a rare autosomal dominant syndromic disease that was first described in 2017.The TUBB4B gene,encoding the betatubulin 4B isotype,has been identified as the primary genetic cause of the disease[1].LCAEOD is characterized by night blindness,nystagmus,strabismus,hypermetropia,serious vision loss,pigmentary retinopathy,minimal or no detectable electroretinogram responses and inner-ear cell dysfunction in the first decade of life[1-3].In short,this disease combines Leber congenital amaurosis(LCA,OMIM 204000)and sensorineural hearing loss(SHL).To date,only three studies have reported cases of LCAEOD with TUBB4B mutations[1-3].Here,we present the first Chinese case of LCAEOD syndrome caused by a mutation in TUBB4B gene.
