| 塔里木河流域干旱区棉田土壤呼吸的温度敏感性研究 |
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| 引用本文： | 赵志敏,赵成义.塔里木河流域干旱区棉田土壤呼吸的温度敏感性研究[J].冰川冻土,2012,34(1):169-176. |
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| 作者姓名： | 赵志敏 赵成义 |
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| 作者单位： | 1. 中国科学院 新疆生态与地理研究所 荒漠与绿洲生态国家重点实验室, 新疆 乌鲁木齐 830011;
2. 中国科学院 研究生院, 北京 100049 |
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| 基金项目： | 国家自然科学基金青年基金，国家自然科学基金重点基金，国家重点基础研究发展计划(973计划)项目，中国科学院知识创新项目 |
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| 摘 要： | 利用阿克苏绿洲农田试验站连续测定的棉田土壤呼吸值及同步测定的土壤温度与湿度数据, 构建通用的土壤呼吸温度敏感性模型. 结合构建的模型, 对5个常用的土壤呼吸温度模型所模拟的研究区的土壤呼吸变化的温度敏感性进行评析. 结果表明: Arrhenius模型能较好的预测研究区的土壤呼吸温度敏感性的变化; 研究区土壤呼吸温度敏感性随温度的升高呈下降的趋势. 两类试验样地土壤呼吸温度敏感性存在明显的差异性, 这可能与两类试验样地土壤呼吸组分的差异有关, 这是以后需要重点关注的地方.
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| 关 键 词： | 土壤呼吸 土壤呼吸温度敏感性 干旱区 |
| 收稿时间： | 2011-08-17 |
| 修稿时间： | 2011-12-15 |
A Study of Temperature Sensitivity of Soil Respiration in Cotton Field in Arid Regions of the Tarim River Basin |
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| ZHAO Zhi-min,ZHAO Cheng-yi.A Study of Temperature Sensitivity of Soil Respiration in Cotton Field in Arid Regions of the Tarim River Basin[J].Journal of Glaciology and Geocryology,2012,34(1):169-176. |
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| Authors: | ZHAO Zhi-min ZHAO Cheng-yi |
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| Institution: | 1. State Key Laboratory of Desert and Oasis Ecology, Xingjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Ürümqi Xinjiang 830011, China;
2. Graduate University of Chinese Academy of Sciences, Beijing 100049, China |
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| Abstract: | On the basis of the values of soil respiration,soil temperature and soil moisture measured in the cotton field in Aksu National Experimental Station of Oasis Farmland Ecosystem,a general model of temperature sensitivity of soil respiration is formed.By using the formed general model of temperature sensitivity of soil respiration,the temperature sensitivities of soil respiration simulated by five temperature-respiration models in the study site are analyzed.It is found that Arrhenius model is optimum to simulate soil respiration in this study site;Temperature sensitivity of soil respiration decreases with increasing temperature.Comparing the temperature sensitivity of soil respiration at the two experimental sites finds that the difference between the two sites is significant.This result can be explained with that temperature sensitivity of soil respiration varies among different components of soil respiration.Maybe,it is a theme needed to focus. |
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| Keywords: | soil respiration temperature sensitivity of soil respiration arid regions |
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