汉石桥湿地芦苇生长季末地上部分各器官中碳、氮和磷的生态化学计量特征及对其的固持能力
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摘要
2017年11月15～17日,在北京汉石桥湿地自然保护区核心区蔡家河流入的主进水口区、核心区中央区和蔡家河流出的出水口区的芦苇(Phragmites australis)群落中,布设了9个样方,采集芦苇样品,测定芦苇叶片、叶鞘、穗和茎的生物量和全碳、全氮、全磷含量,研究芦苇生长季末地上部分各器官中碳、氮、磷的生态化学计量特征及对其的固持能力。研究结果表明,在芦苇地上部分的各器官中,芦苇茎中的全碳质量比相对最高,为(452.00±1.77) mg/g,穗、叶鞘和叶片中的全碳含量依次减小;芦苇穗中的全氮和全磷质量比都相对最高,分别为(22.06±1.24) mg/g和(7.24±0.38) mg/g,叶片、叶鞘和茎中的全氮和全磷含量依次减小;芦苇茎的碳氮比和碳磷比高于其它器官,叶片的氮磷比高于其它器官;芦苇茎的固碳和固磷能力分别为2 705.58 g/(m~2·a)和19.11 g/(m~2·a),高于其它器官;穗的固氮能力为19.54 g/(m~2·a),高于其它器官;蔡家河流入的主进水口区芦苇地上部分各器官对碳、氮、磷元素的固持能力高于其它区域;芦苇地上部分各器官总固碳、总固氮和总固磷能力分别为3 939.57g/(m~2·a)、56.42 g/(m~2·a)和33.10 g/(m~2·a)。
To explore the ecological stoichiometry characteristics of carbon, nitrogen and phosphorus and fixation ability to carbon, nitrogen and phosphorus of various organs of aboveground part of Phragmites australis at the end of growing season, a total of 9 sampling plots were set up in the main water inlet of Caijia River,center and water outlet of Caijia River in the core area of Beijing Hanshiqiao Wetland Nature Reserve on 15-17 of November, 2017. The biomass and contents of total carbon, total nitrogen and total phosphorus of leaves, leaf sheaths, ears and stems in each sampling plot were obtained by field investigation and laboratory experiments. The results showed that the total carbon content in stem was the highest among all the organs,and which was(452.00±1.77) mg/g. The total carbon content in ear, leaf sheath and leaf decreased successively. The contents of total nitrogen and total phosphorus in the ear were the highest among the four organs, and they were(22.06±1.24) mg/g and(7.24±0.38) mg/g, respectively. The contents of total nitrogen and total phosphorus in leaf, leaf sheath and stem decreased successively. The ratios of carbon-nitrogen, carbon-phosphorous of stem were higher than those of the other organs. The ratio of nitrogen-phosphorus of leaf was higher than those of the other organs. The carbon and phosphorus fixation ability of stem were 2 705.58 g/(m~2· a) and19.11 g/(m~2· a), which were the strongest among all the organs, and the fixation ability of ear to the nitrogen was 19.54 g/(m~2· a), which was higher than those of other organs. The fixation abilities of various organs of aboveground part of Phragmites australis in the main water inlet to carton, nitrogen and phosphorus were higher than those in other regions. The total fixation ability to carbon, nitrogen and phosphorus of various organs of abovground part of Phragmites australis were 3 939.57 g/(m~2· a), 56.42 g/(m~2· a) and 33.10 g/(m~2· a),respectively.
To explore the ecological stoichiometry characteristics of carbon, nitrogen and phosphorus and fixation ability to carbon, nitrogen and phosphorus of various organs of aboveground part of Phragmites australis at the end of growing season, a total of 9 sampling plots were set up in the main water inlet of Caijia River,center and water outlet of Caijia River in the core area of Beijing Hanshiqiao Wetland Nature Reserve on 15-17 of November, 2017. The biomass and contents of total carbon, total nitrogen and total phosphorus of leaves, leaf sheaths, ears and stems in each sampling plot were obtained by field investigation and laboratory experiments. The results showed that the total carbon content in stem was the highest among all the organs,and which was(452.00±1.77) mg/g. The total carbon content in ear, leaf sheath and leaf decreased successively. The contents of total nitrogen and total phosphorus in the ear were the highest among the four organs, and they were(22.06±1.24) mg/g and(7.24±0.38) mg/g, respectively. The contents of total nitrogen and total phosphorus in leaf, leaf sheath and stem decreased successively. The ratios of carbon-nitrogen, carbon-phosphorous of stem were higher than those of the other organs. The ratio of nitrogen-phosphorus of leaf was higher than those of the other organs. The carbon and phosphorus fixation ability of stem were 2 705.58 g/(m~2· a) and19.11 g/(m~2· a), which were the strongest among all the organs, and the fixation ability of ear to the nitrogen was 19.54 g/(m~2· a), which was higher than those of other organs. The fixation abilities of various organs of aboveground part of Phragmites australis in the main water inlet to carton, nitrogen and phosphorus were higher than those in other regions. The total fixation ability to carbon, nitrogen and phosphorus of various organs of abovground part of Phragmites australis were 3 939.57 g/(m~2· a), 56.42 g/(m~2· a) and 33.10 g/(m~2· a),respectively.
引文
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[6]吴统贵,吴明,刘丽.萧江华杭州湾滨海湿地3种草本植物叶片N、P化学计量学的季节变化[J].植物生态学报, 2010, 3344(1):23-28.
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[11]张森,刘福德,刘庆,等.黄河三角洲不同湿地群落氮磷化学计量特征及其生境适应策略[J].生态学杂志, 2015, 3344(11):2983-2989.
[12]罗艳,贡璐.塔里木盆地南缘不同生境下芦苇生态化学计量特征[J].生态学杂志, 2016, 3355(3):684-691.
[13]昝肖肖.胶州湾湿地菲律宾蛤仔(Ruditapes philippinarum)和芦苇(Phragmites australis)生物学与生态化学计量学研究[D].青岛:中国海洋大学, 2013.
[14]黄小波.北京汉石桥湿地浮游动植物调查[D].北京:首都师范大学, 2009.
[15]Bell C, Carrillo Y, Boot C, et al. Rhizosphere stoichiometry:Are C∶N∶P ratios of plants, soils, and enzymes conserved at the plant species-level?[J]. New Phrtologist, 2014, 20011(2):505-517.
[16]Townsend A R, Cleveland C C, Asner G P, et al. Controls over foliar N:P ratios in tropical forests[J]. Ecology, 2007, 8888(1):107-118.
[17]Carrie A, Deans S T, Behmer A K. The importance of dissolved N:P ratios on mayfly(Baetis spp.)growth in high nutrient detritus-based streams[J]. Hydrobiologia, 2015, 774422(1):15-26.
[18]Niklas K J, Owens T, Reich P B, et al. Nitrogen phosphorus leaf stoichiometry and the scaling of plant growth[J]. Ecology Letters, 2005, 88(6):636-642.
[19]包菡,清华,王立新,等.乌梁素海湖滨带植物生态化学计量学研究[J].内蒙古大学学报(自然科学版), 2014, 4455(4):404-409.
[20]盖平,鲍智娟,张结军,等.环境因素对芦苇地上部生物量影响的灰色分析[J].东北师大学报(自然科学版), 2002, 3344(3):87-91.
[21]段晓男,王效科,欧阳志云,等.乌梁素海野生芦苇群落生物量及影响因子分析[J].植物生态学报, 2004, 2288(2):246-251.
[22]冯忠江,赵欣胜.黄河三角洲芦苇生物量空间变化环境解释[J].水土保持研究, 2008, 1155(3):170-174.
[23]章文龙,曾从盛,张林海,等.闽江河口湿地植物氮磷吸收效率的季节变化[J].应用生态学报, 2009, 2200(6):1317-1322.
[2]李红林,贡璐,洪毅.克里雅绿洲旱生芦苇根茎叶C、N、P化学计量特征的季节变化[J].生态学报, 2016, 3366(20):6547-6555.
[3]王瀚强,王淑琼,方燕,等.崇明岛环岛芦苇地上部分固碳能力估算[J].湿地科学, 2014, 1122(5):539-543.
[4]刘存歧,李昂,李博,等.白洋淀湿地芦苇生物量及氮、磷储量动态特征[J].环境科学学报, 2012, 3322(6):1503-1511.
[5]吴春笃,石驰,沈明霞,等.北固山湿地植物对氮磷元素吸收能力的研究[J].生态环境, 2007, 1166(2):369-372.
[6]吴统贵,吴明,刘丽.萧江华杭州湾滨海湿地3种草本植物叶片N、P化学计量学的季节变化[J].植物生态学报, 2010, 3344(1):23-28.
[7]葛之葳,方水元,李川,等.苏北溱湖芦苇和芦苇+香蒲群落中植物对湿地土壤N、P的固持效[J].湖泊科学, 2017, 2299(3):585-593.
[8]韩剑宏,杜方圆,李卫平,等.小白河湿地土壤和植物N、P累积特征及分析[J].人民黄河, 2017, 3399(10):61-65, 69.
[9]宋佳宇,单保庆.塘-湿地系统中芦苇对再生水氮磷吸收能力研究[J].环境科学与技术, 2015, 3355(10):16-19, 33.
[10]Li L P, Zerbe S, Han W X, et al. Nitrogen and phosphorus stoichiometry of common reed(Phragmites australis)and its relationship to nutrient availability in northern China[J]. Aquatic Botany, 2014(112):84-90.
[11]张森,刘福德,刘庆,等.黄河三角洲不同湿地群落氮磷化学计量特征及其生境适应策略[J].生态学杂志, 2015, 3344(11):2983-2989.
[12]罗艳,贡璐.塔里木盆地南缘不同生境下芦苇生态化学计量特征[J].生态学杂志, 2016, 3355(3):684-691.
[13]昝肖肖.胶州湾湿地菲律宾蛤仔(Ruditapes philippinarum)和芦苇(Phragmites australis)生物学与生态化学计量学研究[D].青岛:中国海洋大学, 2013.
[14]黄小波.北京汉石桥湿地浮游动植物调查[D].北京:首都师范大学, 2009.
[15]Bell C, Carrillo Y, Boot C, et al. Rhizosphere stoichiometry:Are C∶N∶P ratios of plants, soils, and enzymes conserved at the plant species-level?[J]. New Phrtologist, 2014, 20011(2):505-517.
[16]Townsend A R, Cleveland C C, Asner G P, et al. Controls over foliar N:P ratios in tropical forests[J]. Ecology, 2007, 8888(1):107-118.
[17]Carrie A, Deans S T, Behmer A K. The importance of dissolved N:P ratios on mayfly(Baetis spp.)growth in high nutrient detritus-based streams[J]. Hydrobiologia, 2015, 774422(1):15-26.
[18]Niklas K J, Owens T, Reich P B, et al. Nitrogen phosphorus leaf stoichiometry and the scaling of plant growth[J]. Ecology Letters, 2005, 88(6):636-642.
[19]包菡,清华,王立新,等.乌梁素海湖滨带植物生态化学计量学研究[J].内蒙古大学学报(自然科学版), 2014, 4455(4):404-409.
[20]盖平,鲍智娟,张结军,等.环境因素对芦苇地上部生物量影响的灰色分析[J].东北师大学报(自然科学版), 2002, 3344(3):87-91.
[21]段晓男,王效科,欧阳志云,等.乌梁素海野生芦苇群落生物量及影响因子分析[J].植物生态学报, 2004, 2288(2):246-251.
[22]冯忠江,赵欣胜.黄河三角洲芦苇生物量空间变化环境解释[J].水土保持研究, 2008, 1155(3):170-174.
[23]章文龙,曾从盛,张林海,等.闽江河口湿地植物氮磷吸收效率的季节变化[J].应用生态学报, 2009, 2200(6):1317-1322.
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