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当前位置: 首页 > 文章 > 锡林河湿地土壤呼吸日变化及温度响应特征研究 安徽农业科学 2011,39 (14) 217-219
Position: Home > Articles > Study on Diurnal Variation of Wetland Soil Respiration and Characteristics of Temperature Response in Xilin River Journal of Anhui Agricultural Sciences 2011,39 (14) 217-219

锡林河湿地土壤呼吸日变化及温度响应特征研究

作  者：
王慧清;王云龙;杜金玲
单  位：
内蒙古自治区呼伦贝尔市气象局;内蒙古自治区满洲里市气象局
关键词：
土壤呼吸;湿地群落;非生长季;温度响应
摘  要：
[目的]了解土壤呼吸的特征和影响土壤呼吸的因素有助于理清碳循环过程,进而对生态系统响应全球变化结果做出预测。[方法]监测了内蒙古锡林河湿地3个群落生长季和非生长季土壤呼吸速率的日动态变化,同时对大气和土壤的温度变化进行测量。[结果]锡林河湿地群落土壤呼吸强度与温度呈指数变化。土壤呼吸强度与温度具有极高的相关性(R2=0.92),但在不同的温度范围内其相关性存在差异。锡林河湿地群落土壤呼吸日变化呈单峰曲线。生长季和非生长季土壤呼吸的强度存在巨大差异。生长季呼吸强度是非生长季呼吸强度的5~10倍。[结论]该研究证明湿地群落非生长季土壤呼吸的存在,并且其特征与生长季存在相似。
译  名：
Study on Diurnal Variation of Wetland Soil Respiration and Characteristics of Temperature Response in Xilin River
作  者：
WANG Hui-qing et al(Hulunbuir Meteorological Bureau,Hulunbuir,Inner Mongolia 021000)
关键词：
Soil respiration;Wetland community;Non-growing season;Temperature response
摘  要：
[Objective] The soil respiration was an important link of the carbon cycle in ecosystem,which was the important index of community carbon expenditure status.[Method] Soil respiration rate was measured,which changed during a day in non-growing season and growing season between three different communities in Xilin River Wetland.Atmospheric and soil temperature were measure at the same time.[Result] There was a index variation between community soil respiration intensity and temperature in Xilin River Wetland.There was a very high correlation between soil respiration intensity and temperature(R2=0.92),but in different temperature range this correlation had difference.The soil respiration showed a single peak diurnal variation in Xilin River Wetland.There were significant differences in respiration intensity between non-growing and growing season.Respiration intensity in growing season was about 5-10 times in non-growing season.[Conclusion]Different communities had significant different soil respiration.Soil respiration was existed in non-growing season,and had similar character with growing season.

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