碳通量日变化规律及其与温度关系的研究——以冬小麦样地为例
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- 英文论文题名：Study on the daily variation of carbon flux and its relationship with temperature:Taking winter wheat as an example
- 论文作者：李洪建 ; 严俊霞 ; 杨艳
- 英文论文作者：Li Hongjian ; Yan Junxia ; Yang Yan ; Instiute of Loess Pateau ; Shanxi Universiy
- 年：2015
- 作者机构：山西大学黄土高原研究所;
- 论文关键词：碳通量 ; 冠层辐射温度 ; 土壤温度 ; 气温 ; 生态系统呼吸
- 英文论文关键词：carbon flux ; canopy radiation temperature ; soil temperature ; temperature ; ecosystem respiration
- 会议召开时间：2015-09-01
- 会议录名称：2015海峡两岸水土保持学术研讨会论文集（下）
- 英文会议录名称：Proceedings of Cross-strait Symposium on Soil and Water Conservation 2015
- 语种：中文
- 分类号：S512.1
- 学会代码：OGSJ
- 会议名称：2015海峡两岸水土保持学术研讨会
- 会议地点：中国山西太原
- 主办单位：中国水土保持学会、台湾中华水土保持学会
- 学会名称：中国水土保持学会
- 页数：10
- 文件大小：3769k
- 原文格式：O
- 会议级别：全国
摘要
以山西省太谷盆地小麦为研究对象,采用箱式法,研究冬小麦抽穗期农田尺度CO_2通量的日变化规律及其与温度的关系。结果表明,日尺度上冬小麦干旱处理样地(WD)和灌溉样地(WW)的气温T_a和植被冠层辐射温度T_c之间的泊松相关系数都在0.90以上,2尾显著性检验均为极显著水平,表明在日尺度上T_c与T_a具有较好的一致性,可以用来代替T_a来研究温度对总初级生产力GPP及生态系统呼吸R_(eco)的影响。2009年和2010年冬小麦的WD和WW样地的光照强度PAR变化对净生态系统碳交换量NEE的影响在冬小麦生育前期和后期小于生育中期。日变化尺度上WW和WD样地的NEE、GPP、R_(eco)与土壤温度T_s的相关系数绝大部分都低于与T_a和T_c的,而与T_a和T_c的相关系数差异不大,表明在日尺度上T_c可以代替T_a来研究温度与碳通量的关系,可以用来计算温度对光合作用的调节系数。
Taking winter wheat in Taigu basin,Shanxi Province as an example,using box mehod,studied the daily variation of carbon flux of winter wheat and its relationship with temperature in heading stage,farmland scale.The results showed,at daily scale,the Poisson correlation coefficients of the equation of T_c with T_a in the condition of drought treatment(WD) and irrigation treatment(WW) of winter wheat were both higher than 0.9,2 significant test were all significant,which indicated that T_c and T_a had a good agreement in daily scale,we can use T_c instead of T_a to study the effect of temperature on GPP and R_(eco).In 2009 and 2010,for WD and WW of winter wheat,the effect of the variation of PAR on early and late growth stages was lower than middle stage of growth.At daily scale,most of the correlation coefficients of the equation of NEE,GPP and R_(eco) of WD and WW with soil temperature was lower than T_a with T_c,but the difference between T_a and T_c was little,which indicated that we can use T_c instead of T_a to study the relationship between temperature and carbon flux,and use it to calculate the adjustment coefficient of temperature on photosynthesis.
Taking winter wheat in Taigu basin,Shanxi Province as an example,using box mehod,studied the daily variation of carbon flux of winter wheat and its relationship with temperature in heading stage,farmland scale.The results showed,at daily scale,the Poisson correlation coefficients of the equation of T_c with T_a in the condition of drought treatment(WD) and irrigation treatment(WW) of winter wheat were both higher than 0.9,2 significant test were all significant,which indicated that T_c and T_a had a good agreement in daily scale,we can use T_c instead of T_a to study the effect of temperature on GPP and R_(eco).In 2009 and 2010,for WD and WW of winter wheat,the effect of the variation of PAR on early and late growth stages was lower than middle stage of growth.At daily scale,most of the correlation coefficients of the equation of NEE,GPP and R_(eco) of WD and WW with soil temperature was lower than T_a with T_c,but the difference between T_a and T_c was little,which indicated that we can use T_c instead of T_a to study the relationship between temperature and carbon flux,and use it to calculate the adjustment coefficient of temperature on photosynthesis.
引文
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[2]付玉玲,于贵瑞,王艳芬,等.水分胁迫对内蒙古羊草草原生态系统光合和呼吸作用的影响[J].中国科学D辑地球科学,2006,36(增刊I):183-193
[3]关德新,吴家兵,金昌杰,韩士杰,张弥,施婷婷.长白山红松针阔混交林CO_2通量的日变化与季节变化[J].林业科学,2006,42(10):123-128
[4]郝彦宾,王艳芬,崔骁勇.干旱胁迫降低了内蒙古羊草草原的碳累积[J].植物生态学报,2010,34(8):898-906
[5]李洪建,严俊霞,李君剑,等.黄土高原东部山区两种灌木群落的土壤碳通量研究[A].环境科学学报,2010,30(9):1895-1904
[6]刘允芬,于贵瑞,温学发,等.千烟洲中亚热带人工林生态系统CO_2通量的季节变异特征[J].中国科学D辑地球科学,2006,36(增刊I):91-102
[7]王建林,温学发,孙晓敏,王玉英.华北平原冬小麦生态系统齐穗期水碳通量日变化的非对称响应[J].华北农学报,2009,24(5):159-163
[8]朱怀松,刘晓锰,裴欢.热红外遥感反演地表温度研究现状[J].干旱气象,2007,25(2):17-21
[9]郝祺,陆佩玲,房世波,等.黄淮海地区冬小麦光合作用参数的取值范围[J].中国农业气象,2009,30(1):74-78
[10]严俊霞,秦作栋,李洪建,等.土壤温度和水分对油松林土壤呼吸的影响[A].生态学报,2009,29(12):6366-6376
[11]Aber,J.D.&Federer,C.A.A generalized,lumped-parameter model of photosynthesis,evapotranspiration and net primary production in temperate and boreal forest ecosystems.Oecologia,1992,92,(4),463-474
[12]Borken,W.;Xu,Y.;Davidson,E.A.;Beese,F.Site and temporal variation of soil respiration in European beech,Norway spruce,and Scots pine forests.Global Change Biology,2002,8,(12),1205-1216
[13]Broecker,W.S.;Takahashi,T.;Simpson,H.J.;and Peng,T.H.Fate of fossil fuel carbon dioxide and the global carbon budget.Science,1979,206,(4417),409-418
[14]CurielYuste,J.;Janssens,I.A.;Carrara,A.;Meiresonne,L.;Ceulemans,R.Interactive effects of temperature and precipitation on soil respiration in a temperate maritime pine forest.Tree Physiology,2003,23,1263-1270
[15]Epron,D.;Ngao,J.;Granier,A.Interannual variation of soil respiration in a beech forest ecosystem over a six-year study.Annual Forest Science,2004,61,499-505
[16]Sims,P.L.&Bradford,J.A.Carbon dioxide fluxes in a southern plains prairie.Agricultural and Forest Meteorology,2001,109,117-134