| 辽东山区天然次生林土壤呼吸研究 |
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| 引用本文： | 张慧东,尤文忠,邢兆凯,杨润学,魏文俊,赵刚,颜廷武.辽东山区天然次生林土壤呼吸研究[J].辽宁林业科技,2011(1):5-8,12. |
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| 作者姓名： | 张慧东 尤文忠 邢兆凯 杨润学 魏文俊 赵刚 颜廷武 |
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| 作者单位： | 1. 辽宁省林业科学研究院,辽宁,沈阳,110032
2. 西丰县林业局,辽宁,西丰,112400 |
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| 基金项目： | 辽宁省自然科学基金(20092018); 国家林业公益性行业科研专项基金(200804006/rhh-03) |
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| 摘 要： | 利用Li-COR-8100测定并分析了辽东山区天然次生林生长季土壤呼吸特征、土壤呼吸年C释放量以及与土壤水热因子的相关关系。结果表明：天然次生林土壤呼吸速率日变化呈单峰曲线;土壤呼吸速率与地面10cm处土壤温度呈幂函数关系,关系式为y=0.3614e0.1219x（R2=0.702）,土壤温度可以解释土壤呼吸变化的70.20%;该地区天然次生林土壤呼吸年均速率约1.14μmol/（m2.s）,土壤向大气年释放C约为410.40～455.76 gC/m2。
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| 关 键 词： | 土壤呼吸 次生林 辽东山区 |
Soil respiration of natural secondary forests in mountainous areas in eastern Liaoning |
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| ZHANG Hui-dong,YOU Wen-zhong,XING Zhao-kai,YANG Run-xue,WEI Wen-jun,ZHAO Gang,YAN Ting-wu.Soil respiration of natural secondary forests in mountainous areas in eastern Liaoning[J].Liaoning Forestry Science and Technology,2011(1):5-8,12. |
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| Authors: | ZHANG Hui-dong YOU Wen-zhong XING Zhao-kai YANG Run-xue WEI Wen-jun ZHAO Gang YAN Ting-wu |
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| Institution: | ZHANG Hui-dong1,YOU Wen-zhong1,XING Zhao-kai1,YANG Run-xue2,WEI Wen-jun1,ZHAO Gang1,YAN Ting-wu1(1.Liaoning Academy of Forestry sciences,Shenyang 110032,China,2.Xifeng county Forestry Bureau,Xifeng 112400,China) |
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| Abstract: | In this paper,characteristics and annual C emission of soil respiration and its relationships with soil water and heat factors were measured and analyzed by Li-COR-8100 CO2 analyzer in natural secondary forests in mountainous areas of eastern Liaoning.The results indicated that: the diurnal variation of soil respiration rate in natural secondary forests showed a single peak,and the power function correlation was revealed between soil respiration rates and soil temperatures at 10cm form the surface,the equat... |
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| Keywords: | soil respiration natural secondary forests mountainous areas in eastern Liaoning |
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