本数据集为利用开路式土壤碳通量测量系统LI-8100(LI-COR，Lincoln，NE，USA)在大满超级站定点测量的土壤呼吸速率。\n
\n1）测量目的\n
\n土壤呼吸速率测量的目的在于：利用LI－8100测定土壤呼吸日变化特征，为评估干旱区农田生态系统碳循环和碳平衡提供科学依据与参数。\n
\n2）测量仪器与方式\n
\n测量仪器：开路式土壤碳通量测量系统LI-8100(LI-COR，Lincoln，NE，USA)。\n
\n测量方式：土壤呼吸室放置在PVC圈(直径10 cm，高度5 cm)上，PVC圈插入土壤1～2 cm，在测定的前1 d安置。采用全自动观测，利用太阳能板进行供电，采用仪器自带数据采集仪，自动记录观测数据。 \n
\n3）测量时间\n
\n土壤呼吸速率主要在玉米的主要生长季进行持续观测，具体时间为2012年6月19日一9月15日。\n
\n4）数据处理\n
\n定期从数据采集仪上拷贝出观测数据（*.81x），通过LI-8100(M) PC Client v2.0.0软件预处理转换为文本格式文件，得到土壤呼吸数据。
", "ds_source": "土壤呼吸速率测量的目的在于：利用LI－8100测定土壤呼吸日变化特征，为评估干旱区农田生态系统碳循环和碳平衡提供科学依据与参数。\n
\n土壤呼吸速率主要在玉米的主要生长季进行持续观测，具体时间为2012年6月19日一9月15日。
", "ds_process_way": "测量仪器与方式\n
\n测量仪器：开路式土壤碳通量测量系统LI-8100(LI-COR，Lincoln，NE，USA)。\n
\n测量方式：土壤呼吸室放置在PVC圈(直径10 cm，高度5 cm)上，PVC圈插入土壤1～2 cm，在测定的前1 d安置。采用全自动观测，利用太阳能板进行供电，采用仪器自带数据采集仪，自动记录观测数据。
", "ds_quality": "定期从数据采集仪上拷贝出观测数据（*.81x），通过LI-8100(M) PC Client v2.0.0软件预处理转换为文本格式文件，得到土壤呼吸数据。
", "ds_acq_start_time": "2012-06-19 00:00:00", "ds_acq_end_time": "2012-09-15 00:00:00", "ds_acq_place": "黑河流域中游,中游人工绿洲试验区,大满水分控制实验场,大满超级站", "ds_acq_lon_east": 100.7, "ds_acq_lat_south": 38.769999999999996, "ds_acq_lon_west": 100.6725, "ds_acq_lat_north": 38.95, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "apply-access", "ds_total_size": 51472, "ds_files_count": 2, "ds_format": "excel", "ds_space_res": null, "ds_time_res": "日", "ds_coordinate": "WGS84", "ds_projection": "", "ds_thumbnail": "7e39ae66-169a-4597-98ee-02473759aec0.png", "ds_thumb_from": 0, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "本数据由“黑河生态水文遥感试验（HiWATER）”产生，用户在使用数据时请在正文中明确声明数据的来源，并在参考文献部分引用本元数据提供的引用方式。", "ds_from_station": null, "organization_id": "c94b3578-20da-4346-9de9-c702b6ca8983", "ds_serv_man": "敏玉芳", "ds_serv_phone": "0931-4967596 ", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "", "subject_codes": null, "quality_level": 3, "publish_time": "2021-08-31 15:56:12", "last_updated": "2023-08-23 16:47:23", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.nieer.2020.1602", "i18n": { "en": { "title": "Heihe River eco hydrological remote sensing experiment: observation data set of soil respiration in the middle reaches of Heihe River Basin (2012)", "ds_format": "", "ds_source": "The purpose of soil respiration rate measurement is to measure the diurnal variation characteristics of soil respiration by li-8100, so as to provide scientific basis and parameters for evaluating the carbon cycle and carbon balance of farmland ecosystem in arid area.\n
\nThe soil respiration rate was continuously observed during the main growing season of maize from June 19 to September 15, 2012
", "ds_quality": "Regularly copy the observation data (*. 81x) from the data collector and convert it into text format file through li-8100 (m) PC client v2.0.0 software to obtain soil respiration data
", "ds_ref_way": "", "ds_abstract": "This data set is the soil respiration rate measured by the open circuit soil carbon flux measurement system li-8100 (li-cor, Lincoln, NE, USA) at the Damon super station.\n
\n1) Measurement purpose\n
\nThe purpose of soil respiration rate measurement is to measure the diurnal variation characteristics of soil respiration by li-8100, so as to provide scientific basis and parameters for evaluating the carbon cycle and carbon balance of farmland ecosystem in arid area.\n
\n2) Measuring instruments and methods\n
\nMeasuring instrument: open circuit soil carbon flux measuring system li-8100 (li-cor, Lincoln, NE, USA).\n
\nMeasurement method: the soil breathing chamber is placed on the PVC ring (10 cm in diameter and 5 cm in height). The PVC ring is inserted into the soil for 1 ~ 2 cm and placed 1 day before the measurement. The full-automatic observation is adopted, the solar panel is used for power supply, and the instrument is equipped with a data acquisition instrument to automatically record the observation data.\n
\n3) Measurement time\n
\nThe soil respiration rate was continuously observed during the main growing season of maize from June 19 to September 15, 2012.\n
\n4) Data processing\n
\nRegularly copy the observation data (*. 81x) from the data collector and convert it into text format file through li-8100 (m) PC client v2.0.0 software to obtain soil respiration data
", "ds_time_res": "日", "ds_acq_place": "Middle reaches of Heihe River Basin, middle reaches artificial oasis experimental area, Daman water control experimental field, Daman super station", "ds_space_res": "", "ds_projection": "", "ds_process_way": "Measuring instruments and methods\n
\nMeasuring instrument: open circuit soil carbon flux measuring system li-8100 (li-cor, Lincoln, NE, USA).\n
\nMeasurement method: the soil breathing chamber is placed on the PVC ring (10 cm in diameter and 5 cm in height). The PVC ring is inserted into the soil for 1 ~ 2 cm and placed 1 day before the measurement. The full-automatic observation is adopted, the solar panel is used for power supply, and the instrument is equipped with a data acquisition instrument to automatically record the observation data
", "ds_ref_instruction": "\nThis data is generated by \"Heihe eco hydrological remote sensing experiment (hiwater)\". When using the data, users should clearly state the source of the data in the text and quote the reference method provided by this metadata in the reference part." } }, "submit_center_id": "ncdc", "data_level": 0, "license_type": "https://creativecommons.org/licenses/by/4.0/", "doi_reg_from": "reg_local", "cstr_reg_from": "reg_local", "doi_not_reg_reason": null, "cstr_not_reg_reason": null, "is_paper_in_submitting": false, "ds_topic_tags": [ "土壤", "土壤呼吸", "LI－8100" ], "ds_subject_tags": [ "自然地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "大满水分控制实验场", "中游人工绿洲试验区", "黑河流域", "大满超级站" ], "ds_time_tags": [ 2012 ], "ds_contributors": [ { "true_name": "李新", "email": "lixin@lzb.ac.cn", "work_for": "中国科学院西北生态环境资源研究院", "country": "中国" }, { "true_name": "马明国", "email": "mmg@lzb.ac.cn", "work_for": "中国科学院西北生态环境资源研究院", "country": "中国" }, { "true_name": "王静", "email": "", "work_for": "中国科学院西北生态环境资源研究院", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "王静", "email": "", "work_for": "中国科学院西北生态环境资源研究院", "country": "中国" } ], "ds_managers": [ { "true_name": "王维真", "email": "", "work_for": "中国科学院寒区旱区环境与工程研究", "country": "中国" } ], "category": "生态" }