摘要
大尺度、长期和连续的碳通量数据为研究全球碳、水循环关键过程提供了重要数据支撑。土壤是陆地生态系统最大的碳库,其微小波动将引起陆地生态系统的碳收支变化。热带森林是全球重要的碳库,但近年来发现其碳汇能力趋向减弱或中和现象。连续的土壤碳通量数据,对准确评价热带地区碳收支及其对气候变化的响应具有重要意义。本数据集按照温室气体排放的静态箱法观测方法和数据质控管理办法,收集整理了2003年1月到2008年8月利用静态箱–气相色谱法得到的西双版纳热带雨林土壤地气界面的CO_(2)排放通量数据和常规气象数据,如压强、大气温度、土壤温度(5 cm)和土壤含水量(5 cm)等观测指标,形成了日、月和年尺度3类文件,以期为热带地区与全球碳平衡估算和碳循环过程提供基础数据。
Long-term and large-scale carbon flux data supports research on key processes of the global carbon and water cycle.Soil is the largest carbon pool in the terrestrial ecosystem Small variations in soil carbon can significantly impact the carbon budgets of terrestrial ecosystems.Tropical forest is a crucial carbon sink in the world.However,there have been some reports indicating a decrease in soli carbon levels,potentially approaching neutrality,as a result of soil carbon degradation caused by global changing.Thus,the long-temm and contimuous observation of soil carbon flux is of great significance for evaluating the role of soil carbon in the tropical carbon cycle.ChinaFLUX Observation and Research Network(ChinaFLUX)has not only conducted the observation and research on carbon flux by using vorticity correlation technology,but also carried out the long-term observation and research on suface CO_(2)flux by using the box method.In this dataset,we collected and sorted out the soil CO_(2)emission flux data and conventional meteorological data of Xishuangbanna tropical rain forest ecosystem from January 2003 to August 2008 according to the static box observation method and data quality control management of greenhouse gas emissions.The dataset consists of three types of fles at daily,monthly and yearly scales,covering surface CO_(2)flux,pressure,atmospheric temperature,soil temperature(5 cm)and soil water content(5 cm).It is expected to provide essential data for estimating carbon balance and understanding carbon cycle processes at both tropical and global scales.
作者
洪思思
杨艳波
张蕊
沙丽清
唐建维
张一平
宋清海
邓晓保
巩合德
于贵瑞
王跃思
郑循华
王迎红
周文君
HONG Sisi;YANG Yanbo;ZHANG Rui;SHA Liqing;TANG Jianwei;ZHANG Yiping;SONG Qinghai;DENG Xiaobao;GONG Hede;YU Guirui;WANG Yuesi;ZHENG Xunhua;WANG Yinghong;ZHOU Wenjun(Key Laboratory of Tropical Forest Ecology,Xishuangbanna Tropical Botanical Garden,Chinese Academy of Sciences,Mengla 666303,P.R China;Southwest Forestry University,Kunming 650224,P.R China;University of Chinese Academy of Sciences,Bejing 100049,PR China;Center for Plant Ecology,Core Botanical Gardens,Chinese Academy of Sciences,Mengla 666303,P.RChina;Xishuangbanna Tropical Rain Forest Ecosystem Research Station,Chinese Acadeny of Sciences,Mengla666303.P.R China;Institute of Geographic Sciences and Natural Resources Research,Chinese Academy of Sciences,Beijing 100101,P.R China;Institute of Atmospheric Physics,Chinese Academy of Sciences,Beijing 100039,P.R China)
基金
国家自然科学基金(42073080、41671209、40571163、31061140359、31770528、41961144017、U1602234、U1202234、41271056、31290221、41071071、41975147、42075119)
国家973项目(2002CB412501,2010CB833501)
国家重点研发计划(2016YFC0502105)
国家基金青年科学基金项目(40801035)
国家重点基础研究发展计划(2010CB833501)
中国科学院创新工程重大项目(KZCX1-SW-01-01A)
中国科学院知识创新工程重要方向项目(KJCX2-YW-432-1、KZCX2-YW-Q1-05-04)
云南中青年学术与技术带头人(后备人才)项目(202205AC160045)
中国科学院战略性先导科技专项(XDA19020302、XDA05020302和XDA05050601)。
关键词
静态箱–气相色谱法
土壤碳通量
碳循环
气象要素
热带雨林
static chamber-gas chromatography
soil carbon flux
carbon cycle
meteorological elements
tropical rain forest
