本数据集为盈科绿洲与花寨子荒漠加密观测区的叶面积指数数据集。\n
\n测量日期与内容：\n
\n 2008-05-20、2008-05-24、2008-05-25、2008-05-28、2008-05-31、2008-06-06、2008-06-11、2008-06-12、2008-06-14、2008-06-16、2008-06-21、2008-06-27、2008-07-02、2008-07-09期间在盈科绿洲与花寨子荒漠加密观测区用LAI3000、量角器、直尺等测量了植被（玉米、小麦）结构参数。
\n
测量方法为：利用直尺测量玉米和小麦每株各叶片的最大长度、最大宽度。将每片叶子分为三段测量叶倾角，并分别测量每段的长和宽。用尺子测量测量株高和每片叶子的叶基高。用皮尺测量同一垄上N株（如20株）作物的距离，由此得到株间距，同时测量冠层高，记录多个数据求平均值作为最终冠层高度。用皮尺测量垄距和垄间距。每块样地拔两株有代表性的植株回室内，测量杆长、杆宽、杆周长，并用LAI3000测量叶片最长、最宽以及面积。 数据以Excel保存。
", "ds_source": "2008-05-20、2008-05-24、2008-05-25、2008-05-28、2008-05-31、2008-06-06、2008-06-11、2008-06-12、2008-06-14、2008-06-16、2008-06-21、2008-06-27、2008-07-02、2008-07-09期间在盈科绿洲与花寨子荒漠加密观测区用LAI3000、量角器、直尺等测量了植被（玉米、小麦）结构参数。
", "ds_process_way": "利用直尺测量玉米和小麦每株各叶片的最大长度、最大宽度。将每片叶子分为三段测量叶倾角，并分别测量每段的长和宽。用尺子测量测量株高和每片叶子的叶基高。用皮尺测量同一垄上N株（如20株）作物的距离，由此得到株间距，同时测量冠层高，记录多个数据求平均值作为最终冠层高度。用皮尺测量垄距和垄间距。每块样地拔两株有代表性的植株回室内，测量杆长、杆宽、杆周长，并用LAI3000测量叶片最长、最宽以及面积。
", "ds_quality": "数据质量良好
", "ds_acq_start_time": "2008-05-20 00:00:00", "ds_acq_end_time": "2008-07-09 00:00:00", "ds_acq_place": "黑河流域, 花寨子荒漠加密观测区, 中游干旱区水文试验区, 盈科绿洲加密观测区", "ds_acq_lon_east": 100.44305555555556, "ds_acq_lat_south": 38.04333333333333, "ds_acq_lon_west": 100.58972222222222, "ds_acq_lat_north": 38.973888888888894, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "login-access", "ds_total_size": 287810820, "ds_files_count": 2, "ds_format": "excel", "ds_space_res": null, "ds_time_res": "日", "ds_coordinate": "WGS84", "ds_projection": "", "ds_thumbnail": "71befc3b-351e-41f9-8342-0edd92334304.png", "ds_thumb_from": 0, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "本数据由“黑河综合遥感联合试验”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": "14df1d8b-6362-4c0f-b88e-b46d4abe5db9", "ds_serv_man": "敏玉芳", "ds_serv_phone": "0931-4967596", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "10.12072/ncdc.NIEER.db1782.2022", "subject_codes": [ "170.4510" ], "quality_level": 3, "publish_time": "2022-03-14 15:02:07", "last_updated": "2023-08-18 11:19:16", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.NIEER.2021.1737", "i18n": { "en": { "title": "Heihe comprehensive remote sensing joint experiment: Lai observation data set of Yingke oasis and huazhaizi desert intensive observation area", "ds_format": "Excel", "ds_source": "During May 20, 2008, May 24, 2008, May 25, 2008, May 28, 2008, May 31, 2008, June 6, 2008, June 11, 2008, June 12, 2008, June 14, 2008, June 16, 2008, June 21, 2008, June 27, 2008, July 02, 2008 and July 09, 2008, the structural parameters of vegetation (corn and wheat) were measured with lai3000, protractor and ruler in the dense observation area of Yingke oasis and huazhaizi desert.", "ds_quality": "
Good data quality.", "ds_ref_way": "", "ds_abstract": "
This data set is the leaf area index data set of Yingke oasis and huazhaizi desert intensive observation area.\n
\nMeasurement date and content:\n
\nDuring May 20, 2008, May 24, 2008, May 25, 2008, May 28, 2008, May 31, 2008, June 6, 2008, June 11, 2008, June 12, 2008, June 14, 2008, June 16, 2008, June 21, 2008, June 27, 2008, July 02, 2008 and July 09, 2008, the structural parameters of vegetation (corn and wheat) were measured with lai3000, protractor and ruler in the dense observation area of Yingke oasis and huazhaizi desert< br />\n
\nThe measurement method is to measure the maximum length and width of each leaf of corn and wheat with a ruler. Divide each leaf into three sections, measure the leaf inclination, and measure the length and width of each section respectively. Measure the plant height and leaf base height of each leaf with a ruler. Measure the distance between N crops (such as 20 crops) on the same ridge with a tape measure to obtain the plant spacing, measure the canopy height at the same time, record multiple data and calculate the average value as the final canopy height. Measure the ridge distance and ridge spacing with a tape measure. Two representative plants were pulled from each sample plot and returned to the room to measure the rod length, rod width and rod circumference, and the longest, widest and area of leaves were measured with lai3000. The data is saved in Excel.
", "ds_time_res": "日", "ds_acq_place": "Heihe River Basin, intensive observation area of huazhaizi desert, hydrological test area of arid area in the middle reaches, intensive observation area of Yingke oasis", "ds_space_res": "", "ds_projection": "", "ds_process_way": "The maximum length and width of each leaf of maize and wheat were measured with a ruler. Divide each leaf into three sections, measure the leaf inclination, and measure the length and width of each section respectively. Measure the plant height and leaf base height of each leaf with a ruler. Measure the distance between N crops (such as 20 crops) on the same ridge with a tape measure to obtain the plant spacing, measure the canopy height at the same time, record multiple data and calculate the average value as the final canopy height. Measure the ridge distance and ridge spacing with a tape measure. Two representative plants were pulled from each sample plot and returned to the room to measure the rod length, rod width and rod circumference, and the longest, widest and area of leaves were measured with lai3000.", "ds_ref_instruction": "This data is generated by \"Heihe integrated remote sensing joint test\". 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": [ "生物量", "叶面积指数", "植被", "植被结构" ], "ds_subject_tags": [ "自然地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "中游干旱区水文试验区", "盈科绿洲加密观测区", "花寨子荒漠加密观测区", "黑河流域" ], "ds_time_tags": [ 2008 ], "ds_contributors": [ { "true_name": "周梦维", "email": "mengweizhou@hotmail.com", "work_for": "中国科学院遥感应用研究所", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "周梦维", "email": "mengweizhou@hotmail.com", "work_for": "中国科学院遥感应用研究所", "country": "中国" } ], "ds_managers": [ { "true_name": "周梦维", "email": "mengweizhou@hotmail.com", "work_for": "中国科学院遥感应用研究所", "country": "中国" } ], "category": "遥感及产品" }