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15I 3 本文件按照GB/T1.1—2020《標(biāo)準(zhǔn)化工作導(dǎo)則第1部分:標(biāo)準(zhǔn)化文件的結(jié)構(gòu)和起草規(guī)則》的規(guī)定1草地碳匯計(jì)量與監(jiān)測(cè)術(shù)語(yǔ)本文件適用于草地碳匯監(jiān)測(cè)與評(píng)估工程及相關(guān)領(lǐng)域GB/T40451、DB15/T2379界定的以及下列術(shù)語(yǔ)和定義適用于本文2土壤中含碳有機(jī)物的總和,包括動(dòng)植物殘?bào)w、腐殖質(zhì)以及微生物體的碳含量,常用單位為g/一定面積和深度土體中土壤有機(jī)碳總量,常用單位為k單位面積和一定深度土體中土壤有機(jī)碳含量,常用單位為kg/m2或t碳固持carbonsequestr將大氣中的二氧化碳等溫室氣體通過(guò)各種方式長(zhǎng)期儲(chǔ)存于地球系統(tǒng)中,以減少大氣中的溫室氣體3一個(gè)地區(qū)在一定時(shí)間內(nèi)由人類活動(dòng)直接或間接產(chǎn)生的溫室氣體排放總量,通過(guò)植樹(shù)造林等措施抵3.2草地碳匯術(shù)語(yǔ)人類提供優(yōu)良生活環(huán)境及牧草和其他多種生物產(chǎn)品,是多功能的土地—生物資源和草業(yè)生產(chǎn)基采用馴化、引進(jìn)或者野生鄉(xiāng)土草種,通過(guò)農(nóng)業(yè)技術(shù)措施人工建植的草植物群落生物量plantcommunity地上現(xiàn)存生物量abovegroundstandin4草地植物地表器官枯死后的有機(jī)物質(zhì)的總稱,通常用g/m2或kg草地總初級(jí)生產(chǎn)力grossprimaryproductivityof或固定的總能量,又稱總第一性生產(chǎn)力,常用單位為g/m2、kg/m2或t草地凈初級(jí)生產(chǎn)力netprimaryproductivityof草地總初級(jí)生產(chǎn)力減去自養(yǎng)呼吸消耗后剩余的有地上凈初級(jí)生產(chǎn)力abovegroundnetprimaryprod單位時(shí)間內(nèi)單位面積草地植物地上部分的有機(jī)物質(zhì)累積量,常用單位為g/m2、kg/m2或t/地下凈初級(jí)生產(chǎn)力belowgroundnetprimaryprod單位時(shí)間內(nèi)單位面積草地植物地下部分的有機(jī)物質(zhì)累積量,常用單位為g/m2或k草地凈生態(tài)系統(tǒng)生產(chǎn)力netecosystemproductivityof草地生態(tài)系統(tǒng)中,凈初級(jí)生產(chǎn)力中減去異養(yǎng)生物呼吸消耗光合產(chǎn)物之后的部分,常用單位為g草地總生態(tài)系統(tǒng)生產(chǎn)力grossecosystemproductivityof碳總量,常用單位為gC/m2/s或gC草地生態(tài)系統(tǒng)碳交換ecosystemcarbonexchangeof單位時(shí)間單位面積草地生態(tài)系統(tǒng)碳的輸入與輸出過(guò)程,主要包括植物光合作用固定的碳和生態(tài)系統(tǒng)呼吸釋放的碳,常用單位為gC/m2/s或g5凈生態(tài)系統(tǒng)碳交換netecosystemcarbon單位時(shí)間單位面積草地生態(tài)系統(tǒng)從大氣中吸收的碳通量與向大氣釋放的碳通量的凈平衡值,是總生態(tài)系統(tǒng)生產(chǎn)力與生態(tài)系統(tǒng)呼吸的差值,常用單位為gC/m2/s或gC/h生態(tài)系統(tǒng)呼吸ecosystemresp異養(yǎng)生物利用外界輸入的有機(jī)物作為呼吸底物,草地土壤微生物grasslandsoilmicro草地生態(tài)系統(tǒng)植物通過(guò)光合作用吸收大氣中的二氧化碳,并將其轉(zhuǎn)化為有機(jī)物質(zhì)儲(chǔ)存在植物體內(nèi)草地固碳潛力carbonsequestrationpo6在特定條件下,草地生態(tài)系統(tǒng)通過(guò)自然過(guò)程或人為管理措施所能吸收和儲(chǔ)存大氣中二氧化碳的最退化草地修復(fù)degradedgrasslandre退化草地恢復(fù)或接近原有草地生態(tài)功能和生產(chǎn)功能草地施肥grasslandfer在一年內(nèi)特定時(shí)期內(nèi)(如春季返青期、秋季結(jié)實(shí)期)對(duì)草地施行短時(shí)間停止放牧利用的措施。7在放牧期間,家畜在一塊固定草地上進(jìn)行自由采食的放牧利用方在一定區(qū)域一定時(shí)間內(nèi),草地上家畜放牧利用輕重的程地面碳匯監(jiān)測(cè)ground-basedcarbonsink過(guò)遙感監(jiān)測(cè)可以了解草地生態(tài)系統(tǒng)對(duì)大氣中二氧化碳的吸收和儲(chǔ)存能力,評(píng)估草地生態(tài)系統(tǒng)固碳速率8草地固碳潛力核算accountingforgrasslandcarbonsequestratio對(duì)一定范圍和一定時(shí)間內(nèi)的草地生態(tài)系統(tǒng)可能達(dá)到最大固碳能力(最大固碳速草地固碳速率核算accountingforgrassland草地碳匯評(píng)估grasslandc庫(kù)差法stock-differencea用來(lái)評(píng)估草地生態(tài)系統(tǒng)碳儲(chǔ)量變化的方法,通過(guò)計(jì)算兩個(gè)時(shí)間點(diǎn)之間碳庫(kù)的儲(chǔ)量變化來(lái)估算碳的通過(guò)測(cè)量特定環(huán)境中(密閉箱體)碳濃度的變化來(lái)確定碳利用微氣象原理估算垂直風(fēng)速與物質(zhì)或能量脈動(dòng)的協(xié)方差,是可以直接測(cè)量草地植被冠層與大氣9要清楚描述項(xiàng)目區(qū)域邊界,在項(xiàng)目核查時(shí)應(yīng)向第三方認(rèn)證機(jī)構(gòu)提供每個(gè)獨(dú)立的地塊地理坐在沒(méi)有草地碳匯項(xiàng)目時(shí),能合理地代表項(xiàng)目區(qū)未來(lái)最可能發(fā)生的草地利用和管理的假定情景。起的項(xiàng)目邊界內(nèi)溫室氣體排放的增加量,也稱為實(shí)際凈溫室氣體在基線情景下,項(xiàng)目邊界內(nèi)各碳庫(kù)中的碳儲(chǔ)量變化之和,也稱為基線凈溫室氣體匯清除。其定量認(rèn)證科學(xué)基礎(chǔ)[J].地理科學(xué)進(jìn)展,2011,30(7):[8]生態(tài)系統(tǒng)固碳項(xiàng)目技術(shù)規(guī)范編寫組.出版社,2021[2024-07-16].https://wChange[R].Cambridge:CambridgeUniversityPress,C采食量..........................................................................4草地.............................................................................草地補(bǔ)播.........................................................................草地固碳.........................................................................草地固碳潛力.....................................................................草地固碳潛力核算.................................................................草地固碳速率.....................................................................草地固碳速率核算.................................................................草地凈初級(jí)生產(chǎn)力................................................................0草地凈生態(tài)系統(tǒng)生產(chǎn)力............................................................3草地生態(tài)系統(tǒng)碳交換..............................................................5草地施肥.........................................................................草地碳匯評(píng)估.....................................................................草地土壤動(dòng)物....................................................................0草地土壤微生物..................................................................1草地總初級(jí)生產(chǎn)力.................................................................草地總生態(tài)系統(tǒng)生產(chǎn)力............................................................4地面碳匯監(jiān)測(cè).....................................................................地上凈初級(jí)生產(chǎn)力................................................................1地上生物量.......................................................................地上現(xiàn)存生物量...................................................................地下凈初級(jí)生產(chǎn)力................................................................2地下生物量.......................................................................放牧強(qiáng)度........................................................................7割草............................................................................0劃區(qū)輪牧........................................................................3基線情景........................................................................2基線碳匯量......................................................................4季節(jié)性放牧......................................................................1禁牧.............................................................................凈生態(tài)系統(tǒng)碳交換................................................................6枯落物...........................................................................庫(kù)差法...........................................................................連續(xù)放牧........................................................................2模型法...........................................................................人工草地.........................................................................生態(tài)系統(tǒng)呼吸....................................................................7碳儲(chǔ)量.............................................................................3.1.4碳固持............................................................................3.1.12碳含量.............................................................................3.1.5碳匯...............................................................................3.1.2碳計(jì)量............................................................................3.1.16碳庫(kù)...............................................................................3.1.3碳密度.............................................................................3.1.6碳排放............................................................................3.1.14碳源...............................................................................3.1.1碳中和............................................................................3.1.15碳足跡............................................................................3.1.13天然草地.........................................................................土壤碳庫(kù)...........................................................................3.1.7土壤無(wú)機(jī)碳.........................................................................3.1.8土壤有機(jī)碳.........................................................................3.1.9土壤有機(jī)碳儲(chǔ)量....................................................................3.1.10土壤有機(jī)碳密度....................................................................3.1.11退化草地修復(fù).....................................................................圍欄封育.........................................................................3.渦度相關(guān)法.......................................................................箱式法...........................................................................項(xiàng)目邊界........................................................................1項(xiàng)目減排量......................................................................6項(xiàng)目情景........................................................................0項(xiàng)目碳匯量......................................................................3泄漏............................................................................5休牧.............................................................................遙感碳匯監(jiān)測(cè).....................................................................異養(yǎng)呼吸........................................................................9載畜量..........................................................................5載畜率..........................................................................6植物群落生物量...................................................................自養(yǎng)呼吸........................................................................8abovegroundbiomass..............................................................abovegroundnetprimaryproductivity............................................3.2.abovegroundstandingcrop........................................................accountingforgrasslandcarbonsequestrationpotential................accountingforgrasslandcarbonsequestrationrate........................actualnetgreenhousegasremovalbysinks.....................................artificialgrassland.............................................................autotrophicrespiration.........................................................8baselinenetgreenhousegasremovalbysinks....................................3.2baselinescenario...............................................................2belowgroundbiomass..............................................................belowgroundnetprimaryproductivity............................................2carbonaccounting.................................................................3.1.16carboncontent.....................................................................3.1.5carbondensity.....................................................................3.1.6carbonemission...................................................................3.1.14carbonfixationofgrassland.....................................................3.2.carbonfixationrateofgrassland................................................3.carbonfootprint..................................................................3.1.13carbonneutrality.................................................................3.1.15carbonpool........................................................................3.1.3carbonsequestration..............................................................3.1.12carbonsequestrationpotentialofgrassland................................carbonsink........................................................................3.1.2carbonsource......................................................................3.1.1carbonstorage.....................................................................3.1.4carryingcapacity...............................................................5chambermethod...................................................................continuousgrazing..............................................................2degradedgrasslandrestoration...................................................3.ecosystemcarbonexchangeofgrassland.......................................ecosystemrespiration...........................................................7eddycovariancemethod...........................................................enclosure........................................................................forbiddengrazing................................................................grassmowing....................................................................0grassland........................................................................grasslandcarbonsinkassessment.................................................grasslandfertilization..........................................................grasslandsoilfauna............................................................0grasslandsoilmicroorganisms...................................................1grazingintensity...............................................................7grossecosystemproductivityofgrassland.......................................4grossprimaryproductivityofgrassland..........................................ground-basedcarbonsinkmonitoring..............................................heterotrophicrespiration.......................................................9intake..........................................................................4leakage.........................................................................5litter...........................................................................modelmethod.....................................................................naturalgrassland................................................................netanthropogenicgreenhousegasremovalbysinks...............................6netecosystemcarbonexchange...................................................6netecosystemproductivityofgrass

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