该数据集包含了2018年6月16日至2018年10月18日的黑河水文气象观测网下游四道桥（包括柽柳与胡杨林）叶面积指数观测数据。站点位于内蒙古额济纳旗四道桥，海拔870 m，下垫面是柽柳与胡杨。观测在四道桥超级站（101.1374°E, 42.0012°N）和混合林站（101.1335°E, 41.9903°N）旁开展，样方共计2个，每个样方大小约30m×30m，每个样方内布设5个冠层下节点和1个冠层上节点。
\n本数据集由叶面积指数无线传感网（LAINet）获取，该仪器原始观测数据为仪器自动获取的每个节点逐日逐小时的光照数据（Level0），利用LAINet软件对原始观测数据进行处理，逐节点计算每天LAI（Level1），进一步对无效值识别与填充，并7天滑动平均消除天气变化对LAI计算的影响（Level2），对有多个LAINet节点的观测子区，节点的均值为该子区的最终观测值（Level3）。
\n本次发布的数据集为处理后的Level3产品，数据以*.xls格式存储。
\n黑河流域地表过程综合观测网或站点信息请参考Liu et al. (2018)，观测数据处理请参考Qu et al. (2014)。。
", "ds_source": "", "ds_process_way": "", "ds_quality": "", "ds_acq_start_time": "2018-06-18 00:00:00", "ds_acq_end_time": "2018-10-18 00:00:00", "ds_acq_place": "黑河流域下游,下游天然绿洲试验区,四道桥超级站", "ds_acq_lon_east": 101.13694444444445, "ds_acq_lat_south": 41.99, "ds_acq_lon_west": 101.13277777777778, "ds_acq_lat_north": 42.01, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "apply-access", "ds_total_size": 39424, "ds_files_count": 1, "ds_format": "xls", "ds_space_res": "", "ds_time_res": "", "ds_coordinate": "无", "ds_projection": "", "ds_thumbnail": "a96db431-f9d2-4cb3-ba80-20d1d2fb0f6a.png", "ds_thumb_from": 2, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "", "ds_from_station": null, "organization_id": "7314e349-6d56-45d3-93c1-5068a74cdfde", "ds_serv_man": "李红星", "ds_serv_phone": "0931-4967592", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "", "subject_codes": [ "170.45" ], "quality_level": 0, "publish_time": "2026-04-22 16:19:47", "last_updated": "2026-04-22 16:19:47", "protected": false, "protected_to": null, "lang": "zh", "cstr": null, "i18n": { "en": { "title": "Qilian Mountain Comprehensive Observation Network: Heihe River Basin Surface Process Comprehensive Observation Network (Sidaoqiao Leaf Area Index -2018)", "ds_format": "xls", "ds_ref_way": "Qu Yonghua, Xu Ziwei, Li Xin Qilian Mountain Comprehensive Observation Network: Heihe River Basin Surface Process Comprehensive Observation Network (Sidaoqiao Leaf Area Index -2018) Time Space Three Pole Environment Big Data Platform, October 1888/ Meteoro.tpdc.270762[QU Yonghua,XU Ziwei,LI Xin.Qilian Mountains integrated observatory network: Dataset of Heihe integrated observatory network (leaf area index of Sidaoqiao, 2018).A Big Earth Data Platform for Three Poles,10.11888/Meteoro.tpdc.270762]", "ds_abstract": "This dataset contains leaf area index observation data of four downstream bridges (including tamarisk and Populus euphratica forests) in the Heihe River hydro meteorological observation network from June 16, 2018 to October 18, 2018. The station is located in Sidaoqiao, Ejina Banner, Inner Mongolia, at an altitude of 870 meters, with underlying surfaces of tamarisk and poplar. Observations were conducted next to the Sidaoqiao Super Station (101.1374E, 42.0012N) and the Mixed Forest Station (101.1335E, 41.9903N), with a total of 2 sample plots, each measuring approximately 30m x 30m in size. Each plot was equipped with 5 nodes below the canopy and 1 node above the canopy.
", "ds_acq_place": "Sidaoqiao, Ejina Banner, Inner Mongolia, with an altitude of 870 meters, is supported by tamarisk and poplar trees" } }, "submit_center_id": "ncdc", "data_level": 0, "license_type": "CC BY 4.0 (Creative Commons Attribution 4.0 International License)", "doi_reg_from": "reg_local", "cstr_reg_from": "reg_local", "doi_not_reg_reason": null, "cstr_not_reg_reason": null, "ds_topic_tags": [ "植被", "叶面积指数" ], "ds_subject_tags": [ "地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "黑河流域下游", "四道桥超级站", "下游天然绿洲试验区" ], "ds_time_tags": [ 2018 ], "ds_contributors": [ { "true_name": "屈永华", "email": "qyh@bnu.edu.cn", "work_for": "北京师范大学", "country": "中国" }, { "true_name": "徐自为", "email": "xuzw@bnu.edu.cn", "work_for": "北京师范大学地理学与遥感科学学院", "country": "中国" }, { "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" } ], "ds_meta_authors": [ { "true_name": "屈永华", "email": "qyh@bnu.edu.cn", "work_for": "北京师范大学", "country": "中国" }, { "true_name": "徐自为", "email": "xuzw@bnu.edu.cn", "work_for": "北京师范大学地理学与遥感科学学院", "country": "中国" }, { "true_name": "李新", "email": "xinli@itpcas.ac.cn", "work_for": "中国科学院青藏高原研究所", "country": "中国" } ], "ds_managers": [ { "true_name": "徐自为", "email": "xuzw@bnu.edu.cn", "work_for": "北京师范大学地理学与遥感科学学院", "country": "中国" } ], "category": "生态" }