本数据集利用LI-6400光合仪，观测了黑河流域下游试验区的主要植物胡杨林的光合作用过程。观测地点位于下游核心观测区额济纳旗的胡杨站和混合林站。观测日期为2014年7月下旬。本数据集为观测期内的胡杨的LI-6400的原始观测数据。\n
\n1、 测量目的\n
\n光合数据测量可以用于植物生理特性研究。\n
\n2、 测量仪器\n
\n测量仪器：LI-6400便携式光合作用测量仪。\n
\n3、 观测时间地点\n
\n观测地点：混合林站\n
\n观测时间：2014-07-24\n
\n观测地点：胡杨站\n
\n观测时间：2014-07-25至2014-07-31\n
\n4、 数据存储与处理\n
\nLI-6400数据采用Excel格式存储。为保留原始数据，未对数据进行删改。测量时每个时段数据存为一个文件，并以日期+类型命名。
", "ds_source": "本数据集利用LI-6400光合仪，观测了黑河流域下游试验区的主要植物胡杨林的光合作用过程。观测地点位于下游核心观测区额济纳旗的胡杨站和混合林站。观测日期为2014年7月下旬。本数据集为观测期内的胡杨的LI-6400的原始观测数据。
", "ds_process_way": "LI-6400数据采用Excel格式存储。为保留原始数据，未对数据进行删改。测量时每个时段数据存为一个文件，并以日期+类型命名。
", "ds_quality": "质量较为良好
", "ds_acq_start_time": "2014-07-24 00:00:00", "ds_acq_end_time": "2014-07-31 00:00:00", "ds_acq_place": "黑河流域,额济纳旗,胡杨林,下游天然绿洲试验区", "ds_acq_lon_east": 101.1236111111111, "ds_acq_lat_south": 41.99277777777778, "ds_acq_lon_west": 101.1236111111111, "ds_acq_lat_north": 41.99277777777778, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "apply-access", "ds_total_size": 3759928, "ds_files_count": 89, "ds_format": "txt", "ds_space_res": null, "ds_time_res": "时", "ds_coordinate": "WGS84", "ds_projection": "", "ds_thumbnail": "e017852e-a518-49d7-bd96-fb6c92e7c22a.png", "ds_thumb_from": 2, "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": "2021-09-14 09:57:05", "last_updated": "2023-08-23 16:47:43", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.NCDC.NIEER.DB2862.2023", "i18n": { "en": { "title": "Heihe River eco hydrological remote sensing experiment: Li-6400 photosynthetic observation data set in the lower reaches of Heihe River (July 2012)", "ds_format": "", "ds_source": "In this data set, the photosynthesis process of Populus euphratica forest in the experimental area of the lower reaches of Heihe River Basin was observed by Li-6400 photosynthetic instrument. The observation site is located at Populus euphratica station and mixed forest station in Ejina Banner, the downstream core observation area. The observation date is late July 2014. This data set is the original observation data of Li-6400 of Populus euphratica during the observation period
", "ds_quality": "Good quality
", "ds_ref_way": "", "ds_abstract": "In this data set, the photosynthesis process of Populus euphratica forest in the experimental area of the lower reaches of Heihe River Basin was observed by Li-6400 photosynthetic instrument. The observation site is located at Populus euphratica station and mixed forest station in Ejina Banner, the downstream core observation area. The observation date is late July 2014. This data set is the original observation data of Li-6400 of Populus euphratica during the observation period.\n
\n1. Measurement purpose\n
\nPhotosynthetic data measurement can be used to study plant physiological characteristics.\n
\n2. Measuring instrument\n
\nMeasuring instrument: Li-6400 portable photosynthesis measuring instrument.\n
\n3. Observation time and place\n
\nObservation site: Mixed Forest Station\n
\nObservation time: July 24, 2014\n
\nObservation location: Populus euphratica station\n
\nObservation time: July 25, 2014 to July 31, 2014\n
\n4. Data storage and processing\n
\nLi-6400 data is stored in Excel format. In order to retain the original data, the data is not deleted. During measurement, each time period data is saved as a file and named with date + type
", "ds_time_res": "时", "ds_acq_place": "Heihe River Basin, Ejina Banner, Populus euphratica forest, downstream natural oasis experimental area", "ds_space_res": "", "ds_projection": "", "ds_process_way": "Li-6400 data is stored in Excel format. In order to retain the original data, the data is not deleted. During measurement, each time period data is saved as a file and named with date + type
", "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": "CC 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": [ "光合有效辐射", "植被", "光合作用" ], "ds_subject_tags": [ "自然地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "黑河流域", "额济纳旗", "胡杨林", "下游天然绿洲试验区" ], "ds_time_tags": [ 2012 ], "ds_contributors": [ { "true_name": "王海波", "email": "wanghaibokm@163.com", "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": "王海波", "email": "wanghaibokm@163.com", "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": "王海波", "email": "wanghaibokm@163.com", "work_for": "中国科学院西北生态环境资源研究院", "country": "中国" } ], "category": "生态" }