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引用本文:张昆,田昆,莫剑锋,常凤来,陆梅,李宁云.水文周期对纳帕海高原湿地草甸土壤碳素的影响.湖泊科学,2007,19(6):705-709. DOI:10.18307/2007.0613
ZHANG Kun,TIAN Kun,MO Jianfeng,CHANG Fenglai,LU Mei,LI Ningyun.Impacts of hydrological periods on organic matters in Napahai wetlands. J. Lake Sci.2007,19(6):705-709. DOI:10.18307/2007.0613
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水文周期对纳帕海高原湿地草甸土壤碳素的影响
张昆1, 田昆1, 莫剑锋2, 常凤来3, 陆梅1, 李宁云4
1.西南林学院环境科学与工程系, 昆明 650224;2.广西壮族自治区林业勘测设计院, 南宁 530011;3.昆明市盘龙区档案局, 昆明 650021;4.云南省林业科学院, 昆明 650204
摘要:
综合降水量、蒸发能力、周边高山冰雪融水以及地下水资源的季节性变化特点分析了纳帕海湿地草甸水文周期特征,采用野外采样和室内分析相结合的方法,研究了水文周期对草甸土壤有机质变化的影响.结果表明,纳帕海湿地水文特征中草甸水位的周期性变化显著,并且水文周期对纳帕海湿地的草甸土壤有机质影响显著,其有机质变化表现为在0-20 cm土层呈不规则的"W"型多峰曲线变化,而在20-40 cm土层有机质的变化则为不规则的"N"型.水文周期变化对草甸土壤有机质的驱动过程可采用高斯多峰模型模拟,且拟合效果较为理想.
关键词:  纳帕海  草甸  水文周期  湿地土壤
DOI:10.18307/2007.0613
分类号:
基金项目:国家重点基础研究发展(973)计划项目(2003CB415100);云南省环境科学与工程创新人才联合培养基地资助项目(A3003015);云南省林业厅云南高原湿地保护区功能分区研究项目(200612)联合资助.
Impacts of hydrological periods on organic matters in Napahai wetlands
ZHANG Kun1, TIAN Kun1, MO Jianfeng2, CHANG Fenglai3, LU Mei1, LI Ningyun4
1.Department of Environmental Science and Engineering, Southwest Forestry CoUege, Kunming 650224, P. R. China;2.Guangxi Forestry Inventory and Planning Institute, Nanning 530011, P. R. China;3.Panlongqu Archives Bureau, Kunming 650021, P. R. China;4.Yunnan Academy of Forestry, Kunming 650204, P. R. China
Abstract:
Characteristics of hydrrology periods was analyzed according to the seasonal characteristics of precipitation,evaporation,dissolved snow and groundwater, and impacts of seasonal hydrological periods on soil organic matters were studied based on field investigation and laboratory analysis in the meadows of Napahai wetlands. The resulfa showed that water level fluctuated greatly in the meadows and soil organic matters were driven greatly by seasonal hydrology periods.巧namics of organic matters in 0-20cm layer appeared in an anomalous"W " shapewhile"N" shape in 20-40cm layer. The driving processes of soil organic matters in the meadows can be fitted inGauasian model.
Key words:  Napahai wetlands  meadowa  hydrological periods  wetlands soil
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