喀斯特常绿与落叶阔叶混交林过去50年来的碳循环模拟过去50年来的碳循环模拟
Modelling Carbon Cycle of Karst Evergreen and Deciduous Broad-leaved Mixed Forest during the Last 50 Years
查看参考文献49篇
|
文摘
|
通过对Forest-DNDC模型的植被和土壤参数本地化校准,以气象插值数据为输入,模拟了贵州省普定县高原型喀斯特次生常绿与落叶阔叶混交林1965~2014年的土壤、植被和生态系统碳循环特征。结果表明,与冷模拟和实测值相比,参数本地化校准后的模型能更准确地模拟春、秋、冬3个季节的土壤呼吸动态,而模拟的夏季土壤呼吸偏小;但统计检验指出,参数修订后的Forest-DNDC模型能够较好地模拟喀斯特森林土壤呼吸,降低了模拟误差,可用于喀斯特常绿与落叶阔叶混交林碳动态的模拟。进一步分析发现,1965~2014年喀斯特森林的碳通量除模拟早期的前3~4年急剧增加之外,随后总初级生产力(GPP)保持相对稳定,植物呼吸(R_(plant))和生态系统呼吸(R_(ecosystem))随着森林发育而增加,土壤呼吸(R_(soil))减少,植被净初级生产力(NPP)呈迅速减小趋势;净生态系统碳交换量(NEE)亦较迅速下降,在2013年达到最低值-0.17 tC/ha,喀斯特森林由碳汇变为弱碳源。相关分析表明,年均温度和年降水对喀斯特常绿与落叶阔叶混交林的GPP和R_(soil)没有显著影响,但却显著影响NPP、R_(plant)、R_(ecosystem)和NEE。 |
|
其他语种文摘
|
Carbon cycle of plant, soil, and the whole ecosystem of plateau-type karst evergreen and deciduous broad-leaved mixed forest in Puding, central Guizhou was simulated from 1965 to 2014 based on the newly parameterized Forest-DNDC model and driven by interpolated daily climate data. Results showed that, compared with default parameter simulation and observations, the re-parameterized model can more accurately simulate soil respiration rates of spring, autumn and winter, but the summer soil respiration rate was under-simulated. However, statistical tests indicated that the modified Forest-DNDC model could generally simulate soil respiration of karst forest. Modelling errors from the default parameter simulation have been reduced. The model can be further used to simulate carbon dynamics of karst evergreen and deciduous broad-leaved mixed forest. Further simulations indicated that carbon fluxes of karst forest increased rapidly in the beginning of 3-4 years. Then with forest grew, the gross primary productivity(GPP)remained relatively stable, plant respiration(R_(plant))and ecosystem respiration(R_(ecosystem))increased continuously, and soil respiration(R_(soil))and net primary productivity(NPP)rapidly decreased. The net ecosystem exchange(NEE)reduced rapidly and achieved its minimum value of-0.17 tC/ha in 2013, implying that karst evergreen and deciduous broad-leaved mixed forest became from a CO_2sink to a weak CO_2source. Correlation analyses indicated that the annual mean temperature and annual total precipitation had no statistically significant effects on GPP and R_(soil), but had significant effects on NPP, R_(plant), R_(ecosystem), and NEE. |
|
来源
|
地球与环境
,2017,45(1):96-105 【核心库】
|
|
DOI
|
10.14050/j.cnki.1672-9250.2017.01.013
|
|
关键词
|
Forest-DNDC
;
喀斯特
;
常绿与落叶阔叶混交林
;
碳循环
|
|
地址
|
中国科学院地球化学研究所, 环境地球化学国家重点实验室, 贵阳, 550081
|
|
语种
|
中文 |
|
文献类型
|
研究性论文 |
|
ISSN
|
1672-9250 |
|
学科
|
植物学 |
|
基金
|
国家重大科学研究计划项目
|
|
文献收藏号
|
CSCD:5922971
|
参考文献 共
49
共3页
|
|
1.
Prentice I C. The carbon balance of the terrestrial biosphere:Ecosystem models and atmospheric observations.
Ecological Applications,2000,10(6):1553-1573
|
CSCD被引
13
次
|
|
|
|
|
2.
Prentice I C. Dynamic global vegetation modeling:Quantifying terrestrial ecosystem responses to large-scale environmental change.
Terrestrial Ecosystems in a Changing World,2007:175-192
|
CSCD被引
9
次
|
|
|
|
|
3.
Li C. A process-oriented model of N_2O and NO emissions from forest soils:1. Model development.
Journal of Geophysical Research:Atmospheres,2000,105(D4):4369-4384
|
CSCD被引
16
次
|
|
|
|
|
4.
Stange F. A process-oriented model of N_2O and NO emissions from forest soils:2. Sensitivity analysis and validation.
Journal of Geophysical Research Atmospheres,2000,105(D4):4385-4398
|
CSCD被引
12
次
|
|
|
|
|
5.
Kurbatova J. Modeling carbon dynamics in two adjacent spruce forests with different soil conditions in Russia.
Biogeosciences,2008,5(4):969-980
|
CSCD被引
6
次
|
|
|
|
|
6.
Miehle P. Assessing productivity and carbon sequestration capacity of Eucalyptus globulus plantations using the process model Forest-DNDC:Calibration and validation.
Ecological Modelling,2006,192(1):83-94
|
CSCD被引
11
次
|
|
|
|
|
7.
Lamers M. Modelling N_2O emission from a forest upland soil:A procedure for an automatic calibration of the biogeochemical model Forest-DNDC.
Ecological Modelling,2007,205(1):52-58
|
CSCD被引
4
次
|
|
|
|
|
8.
Cui J. Analyzing the ecosystem carbon and hydrologic characteristics of forested wetland using a biogeochemical process model.
Global Change Biology,2005,11(2):278-289
|
CSCD被引
8
次
|
|
|
|
|
9.
王小国. 川中丘陵区桤柏混交林地土壤CO_2释放与Forest-DNDC模型模拟.
北京林业大学学报,2008,30(2):27-32
|
CSCD被引
10
次
|
|
|
|
|
10.
鲁旭阳. 贡嘎山冷杉林土壤CO_2释放的模拟研究.
浙江林业科技,2009,29(6):11-16
|
CSCD被引
4
次
|
|
|
|
|
11.
Sweeting M M.
Karst Landforms,1972:362
|
CSCD被引
2
次
|
|
|
|
|
12.
Jiang Z C. Rocky desertification in Southwest China:Impacts, causes, and restoration.
Earth-Science Reviews,2014,132:1-12
|
CSCD被引
135
次
|
|
|
|
|
13.
郭柯. 我国西南喀斯特植物生态适应性与石漠化治理.
植物生态学报,2011,35(10):991-999
|
CSCD被引
114
次
|
|
|
|
|
14.
屠玉麟. 论亚热带喀斯特植被的顶极群落:以贵州喀斯特植被为例.
贵州林业科技,1992,20(4):9-15
|
CSCD被引
5
次
|
|
|
|
|
15.
朱守谦. 茂兰喀斯特森林生物量构成初步研究.
植物生态学报,1995,19(4):358-367
|
CSCD被引
42
次
|
|
|
|
|
16.
Ni J. Vegetation in karst terrain of southwestern China allocates more biomass to roots.
Solid Earth,2015,6(3):799-810
|
CSCD被引
25
次
|
|
|
|
|
17.
Liu Z. A new direction in effective accounting for the atmospheric CO_2 budget:Considering the combined action of carbonate dissolution, the global water cycle and photosynthetic uptake of DIC by aquatic organisms.
Earth-Science Reviews,2010,99(3/4):162-172
|
CSCD被引
66
次
|
|
|
|
|
18.
袁道先.
碳循环与岩溶地质环境,2003
|
CSCD被引
20
次
|
|
|
|
|
19.
刘再华. 岩石风化碳汇研究的最新进展和展望.
科学通报,2012,57(2/3):95-102
|
CSCD被引
80
次
|
|
|
|
|
20.
张春来. 岩溶生态系统中的碳循环特征与碳汇效应.
地球与环境,2013,41(4):378-387
|
CSCD被引
10
次
|
|
|
|
|
了解气象卫星更多信息，请访问