[1]姚玉刚,张一平*,于贵瑞,等.热带雨林土壤呼吸测定代表性时段研究[J].南京林业大学学报(自然科学版),2011,35(04):074-78.[doi:10.3969/j.jssn.1000-2006.2011.04.015]
 YAO Yugang,ZHANG Yiping*,YU Guirui,et al.Representative time selection analysis on daily average value of soil respiration in a tropical rain forest[J].Journal of Nanjing Forestry University(Natural Science Edition),2011,35(04):074-78.[doi:10.3969/j.jssn.1000-2006.2011.04.015]
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热带雨林土壤呼吸测定代表性时段研究
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《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

卷:
35
期数:
2011年04期
页码:
074-78
栏目:
研究论文
出版日期:
2011-07-31

文章信息/Info

Title:
Representative time selection analysis on daily average value of soil respiration in a tropical rain forest
作者:
姚玉刚12张一平1*于贵瑞3沙丽清1邓云1谭正洪12
1.中国科学院热带森林生态学重点实验室,西双版纳热带植物园, 云南昆明650223;2.中国科学院研究生院,北京100039; 3.中国科学院地理科学与资源研究所,北京100101
Author(s):
YAO Yugang12ZHANG Yiping1* YU Guirui3SHA Liqing1DENG Yun1TAN Zhenghong12
1.Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences,Kunming 650223, China;2. Graduate University, Chinese Academy of Sciences, Beijing 100039, China;3.Institute of Geographical Science and Resource Research, Chinese Academy of Sciences, Beijing 100101, China
关键词:
热带雨林土壤呼吸代表性时段西双版纳
Keywords:
tropical forestsoil respiration time scale representation Xishuangbanna
分类号:
S718
DOI:
10.3969/j.jssn.1000-2006.2011.04.015
文献标志码:
A
摘要:
选取适当时段测定土壤呼吸以代表日平均值,可使短期土壤呼吸观测数据有效应用于土壤呼吸年总量的估算。笔者在西双版纳热带季节雨林使用土壤呼吸自动观测系统在不同月份(1月、4月、7月和10月)进行土壤呼吸连续日变化观测,评估了土壤呼吸代表性时段的有效性。结果表明:在4月、7月和10月使用9:00—11:00作为土壤呼吸代表性时段,与24 h日平均土壤呼吸值相对差异可控制在10 %以内;不同月份9:00—11:00土壤呼吸平均值均与24 h日平均值存在偏差,10月相对差异最小,7月最大;选择9:00—11:00时段在多日尺度上可以代表日平均土壤呼吸值,所测算出的Q10值相对接近。
Abstract:
Data of soil respiration taken at the proper time that can represent the daily average value was widely used in annual soil efflux evaluation. In this study, we used an automatic measuring system to observe and collect the data of Xishuangbanna tropical seasonal rain forest soil respiration in January, April, July and October, 2009. The representative time period for soil respiration observation was estimated. Results showed that the errors of the mean values during 9:00—11:00 comparing with the daily average values in April, July and October were all less than 10 % under control,indicating that the values during the period could reasonably represent the daily average value. The errors could vary with months, were the lowest in October and the highest in July. Mean value of soil respiration and Q10 during 9:00—11:00, which was tested at multipleday scale, could well fit the daily average value.

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备注/Memo

备注/Memo:
收稿日期:2010-07-16修回日期:2010-12-13 基金项目:国家重点基础研究发展计划(2010CB833501);国家自然科学基金项目(30670395);中国科学院重要方向性项目(KZCX1-SW-01-01A,KJCX2-YW-432-1)作者简介:姚玉刚 (1983—),博士生。*张一平(通信作者),研究员。Email: yipingzh@xtbg.ac.cn。
更新日期/Last Update: 2011-08-13