CENTURY模型在杉木人工林生态系统的适用性研究
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摘要
基于土壤有机质模型CENTURY研究典型亚热带杉木人工林有着重要意义。本研究以湖南会同杉木林生态站为研究地点,基于会同观测站的长期气象资料,以及站内杉木人工林的生物量实测资料和生产力实测资料,对CENTURY模型进行了校正和模拟。首先在现有研究基础上收集模型运行所需数据,如土壤质地和土壤C、N含量等。其次在模型内的文件中改写所需驱动参数。运行模型后的结果表明:CENTURY模型模拟杉木人工林生物量的模拟值与实测值变化趋势一致,决定系数R2为0.937,大于临界值,均方根误差值RMSE为27.46 t·hm-2。同时在以月为单位的时间尺度上能够准确模拟杉木林生产力的变化,模拟结果反应气候与降水随着季节变化影响到杉木林生产力的变化,在适宜的气温和降水量达到峰值时植物生长也进入最活跃阶段,与先前的生产力研究结果吻合,说明模型能够模拟杉木林生物量对驱动参数变化的响应,适用于杉木林生态系统。
It has important significance to use the soil organic carbon CENTURY model simulates the biomass of typical subtropical Chinese fir plantation. In this study, we set up study sites at Chinese fir Plantation in Hunan Province Ecological Station. The CENTURY model calibration and simulation base on a long time observation station meteorological data, as well as the station of Chinese fir plantation biomass productivity measured data. First we collect the research data needed for model running, Such as soil texture and soil C and N content. And then rewrite the model driving parameters. The model operation results show that Chinese fir plantation simulated values have a same trend with the measured values. The determination coefficient(R2) was 0.937 greater than the critical value. Relative mean square roots was 27.46 t·hm-2.The model is able to accurately simulate the productivity of Chinese fir plantation with month as the time unit. The simulation results react the relationship between the climate and precipitation with productivity of Chinese fir plantation. Peak under suitable temperature and precipitation during plant growth has entered the most active stage, with consistent with previous research results. All above explain this model can be applied to Chinese fir plantation ecosystem.
It has important significance to use the soil organic carbon CENTURY model simulates the biomass of typical subtropical Chinese fir plantation. In this study, we set up study sites at Chinese fir Plantation in Hunan Province Ecological Station. The CENTURY model calibration and simulation base on a long time observation station meteorological data, as well as the station of Chinese fir plantation biomass productivity measured data. First we collect the research data needed for model running, Such as soil texture and soil C and N content. And then rewrite the model driving parameters. The model operation results show that Chinese fir plantation simulated values have a same trend with the measured values. The determination coefficient(R2) was 0.937 greater than the critical value. Relative mean square roots was 27.46 t·hm-2.The model is able to accurately simulate the productivity of Chinese fir plantation with month as the time unit. The simulation results react the relationship between the climate and precipitation with productivity of Chinese fir plantation. Peak under suitable temperature and precipitation during plant growth has entered the most active stage, with consistent with previous research results. All above explain this model can be applied to Chinese fir plantation ecosystem.
引文
[1]刘世荣,温远光.杉木生产力生态学[M].北京:气象出版社,2005:1-3.
[2]田大伦,项文化,闫文德.速生阶段杉木人工林产量结构及生产力的代际效应[J].林业科学,2002,38(4):14-18.
[3]田大伦,盘宏华,康文星,等.第二代杉木人工林生物量的研究[J].中南林学院学报,1998,18(3):11-16.
[4]王丹,王兵,戴伟,等.不同发育阶段杉木林土壤有机碳变化特征及影响因素[J].林业科学研究,2009,22(5):667-671.
[5]方晰,田大伦,项文化,等.不同经营方式对杉木林采伐迹地土壤C储量的影响[J].中南林学院学报,2004,24(1):1-5.
[6]方晰,田大伦,项文化,等.第二代杉木中幼林生态系统碳动态与平衡[J].中南林学院学报,2002,22(1):1-6.
[7]方晰,田大伦,项文化,等.杉木人工林凋落物量及其分解过程中碳的释放量[J].中南林学院学报,2005,25(1):12-15.
[8]焦秀梅,项文化,田大伦.湖南省森林植被的碳贮量及其地理分布规律[J].中南林学院学报,2005,25(1)4-8.
[9]湛小勇,田大伦,彭元英,等.我国杉木人工林生物产量研究概况[C]//林生态系统定位研究.北京:中国林业出版社,1993:10-17.
[10]闫文德,田大伦,何功秀.湖南会同第2代杉木人工林乔木层生物量的分布格局[J].林业资源管理,2003,7(2):5-7.
[11]闫文德,田大伦,焦秀梅.会同第二代杉木人工林林下植被生物量分布及动态.[J].林业科学研究,2003,16(3):323-32
[12]田大伦.杉木林生态系统功能过程[M].北京:科学出版社,2005
[13]田大伦,康文星,文仕知.杉木林生态系统学[M].北京:科学出版社,2003
[14]Parton W J,Rasmussen P E.Long-term effect of crop management in wheat-fallow:CENTURY model simulations[J].Soil Science Society of America Journal,1994,58(2):530-536
[15]高鲁鹏,梁文举,姜勇,等.利用CENTURY模型研究东北黑土有机碳的动态变化.自然状态下土壤有机碳的积累[J].应用生态学报,2004,15(5):772-776.
[16]许文强,陈曦,罗格平,等.基于CENTURY模型研究干旱区人工绿洲开发与管理模式变化对土壤碳动态的影响[J].生态学报,2010,30(14):3707-3716.
[17]高崇升,杨国亭,王建国,等.利用CENTURY模型模拟不同农业经营模式下黑土农田土壤有机碳的演变[J].生态学杂志,2008,27(6):911-915.
[18]高崇升,杨国亭,王建国,等.CENTURY模型在农田生态系统中的应用及其参数确定[J].农业系统科学与综合研究,2006,22(1):50-52.
[19]Tagir G,Gilmanov,William J Parton and Dennis S.Ojima.Testing the CENTURY Ecosystem level model on data sets from eight grassland sites in the former USSR Respresenting wide climate gradient[J].Ecological Modeling,1997,96:191-210.
[20]申卫军,彭少麟,邬建国,等.南亚热带鹤山主要人工林生态系统C、N累积及分配格局的模拟研究[J].植物生态学报,2003,27(5):690-99.
[21]李东,明珠.基于CENTURY模型的高寒草甸土壤有机碳动态研究:开垦对土壤有机碳的影响[J].草业学报,2011(1):12-16.
[22]Parton W J.Adapting a biomass simulation model to a tropical grassland[J].Ecological Modeling,1984,23(1-2):151-163.
[23]李斌,方晰,田大伦,等.湖南省现有森林植被主要树种的碳含量[J].中南林业科技大学学报,2015,35(1):46-49.
[2]田大伦,项文化,闫文德.速生阶段杉木人工林产量结构及生产力的代际效应[J].林业科学,2002,38(4):14-18.
[3]田大伦,盘宏华,康文星,等.第二代杉木人工林生物量的研究[J].中南林学院学报,1998,18(3):11-16.
[4]王丹,王兵,戴伟,等.不同发育阶段杉木林土壤有机碳变化特征及影响因素[J].林业科学研究,2009,22(5):667-671.
[5]方晰,田大伦,项文化,等.不同经营方式对杉木林采伐迹地土壤C储量的影响[J].中南林学院学报,2004,24(1):1-5.
[6]方晰,田大伦,项文化,等.第二代杉木中幼林生态系统碳动态与平衡[J].中南林学院学报,2002,22(1):1-6.
[7]方晰,田大伦,项文化,等.杉木人工林凋落物量及其分解过程中碳的释放量[J].中南林学院学报,2005,25(1):12-15.
[8]焦秀梅,项文化,田大伦.湖南省森林植被的碳贮量及其地理分布规律[J].中南林学院学报,2005,25(1)4-8.
[9]湛小勇,田大伦,彭元英,等.我国杉木人工林生物产量研究概况[C]//林生态系统定位研究.北京:中国林业出版社,1993:10-17.
[10]闫文德,田大伦,何功秀.湖南会同第2代杉木人工林乔木层生物量的分布格局[J].林业资源管理,2003,7(2):5-7.
[11]闫文德,田大伦,焦秀梅.会同第二代杉木人工林林下植被生物量分布及动态.[J].林业科学研究,2003,16(3):323-32
[12]田大伦.杉木林生态系统功能过程[M].北京:科学出版社,2005
[13]田大伦,康文星,文仕知.杉木林生态系统学[M].北京:科学出版社,2003
[14]Parton W J,Rasmussen P E.Long-term effect of crop management in wheat-fallow:CENTURY model simulations[J].Soil Science Society of America Journal,1994,58(2):530-536
[15]高鲁鹏,梁文举,姜勇,等.利用CENTURY模型研究东北黑土有机碳的动态变化.自然状态下土壤有机碳的积累[J].应用生态学报,2004,15(5):772-776.
[16]许文强,陈曦,罗格平,等.基于CENTURY模型研究干旱区人工绿洲开发与管理模式变化对土壤碳动态的影响[J].生态学报,2010,30(14):3707-3716.
[17]高崇升,杨国亭,王建国,等.利用CENTURY模型模拟不同农业经营模式下黑土农田土壤有机碳的演变[J].生态学杂志,2008,27(6):911-915.
[18]高崇升,杨国亭,王建国,等.CENTURY模型在农田生态系统中的应用及其参数确定[J].农业系统科学与综合研究,2006,22(1):50-52.
[19]Tagir G,Gilmanov,William J Parton and Dennis S.Ojima.Testing the CENTURY Ecosystem level model on data sets from eight grassland sites in the former USSR Respresenting wide climate gradient[J].Ecological Modeling,1997,96:191-210.
[20]申卫军,彭少麟,邬建国,等.南亚热带鹤山主要人工林生态系统C、N累积及分配格局的模拟研究[J].植物生态学报,2003,27(5):690-99.
[21]李东,明珠.基于CENTURY模型的高寒草甸土壤有机碳动态研究:开垦对土壤有机碳的影响[J].草业学报,2011(1):12-16.
[22]Parton W J.Adapting a biomass simulation model to a tropical grassland[J].Ecological Modeling,1984,23(1-2):151-163.
[23]李斌,方晰,田大伦,等.湖南省现有森林植被主要树种的碳含量[J].中南林业科技大学学报,2015,35(1):46-49.