该数据集为甘南州2022年、2023年草原植被生长盛期的草原样地监测数据，记录了甘南州草地植被生长的主要指标。样地由1个面积0.5hm2（0.125hm2）的圆形样地（半径40m或20米）、3条40m（或20米）长的样线、1个100m2大样方10m×10m，当灌木冠幅较小且分布均匀时，缩小至5m×5m）、3个4m2观测小样方（2m×2m）和3个1m2测产小样方组成。其中100m2大样方用于调查灌木和高大草本，4m2观测小样方用于调查草本植物及小灌木，1m2测产小样方用于调查产草量，40m长的样线用于调查草原植被盖度和裸地面积比例，0.5hm2的圆形样地用于调查草原类、草原型、地形地貌等，共508条数据。\n
甘南州2022年、2023年草原植被生长盛期的草原样地监测数据，包括调查时间、地点草地类型、植被结构、植被盖度、单位面积鲜草产草量、坡度、坡位等指标。", "ds_source": "
野外样方调查数据，数据格式为XLSX。", "ds_process_way": "
草原样地为40m或20m为半径设置圆形样地（0.5hm2或0.125hm2）。以中心为起点，分别向正北、东南、西南方向设置夹角为120度的3条样线。在样线端点处为中心设置3个2m×2m观测小样方，样方对角线与样线重合。以样地中心点正西方向1m作为东南角点，设置1个10m×10m（当灌木冠幅较小且分布均匀时，缩小至5m×5m）的大样方。对样地中心点及3条样线的端点加以固定。面向样地中心点，分别在3 样线右侧5m左右选取3个最能代表观测小样方状况的1m×1m测产小样方。", "ds_quality": "
按照《全国林草生态综合监测技术规程》组织技术人员开展甘南州草原样地监测，同时按照《甘肃省森林草原湿地荒漠调查监测省级质量检查技术方案》对草原植被盖度、产草量等调查指标进行质量控制和检查，检查合格率95%以上。", "ds_acq_start_time": "2022-01-01 00:00:00", "ds_acq_end_time": "2023-12-31 00:00:00", "ds_acq_place": "甘南藏族自治州", "ds_acq_lon_east": null, "ds_acq_lat_south": null, "ds_acq_lon_west": null, "ds_acq_lat_north": null, "ds_acq_alt_low": 1302.47, "ds_acq_alt_high": 4240.4, "ds_share_type": "apply-access", "ds_total_size": 66775, "ds_files_count": 2, "ds_format": "excel", "ds_space_res": null, "ds_time_res": "", "ds_coordinate": "无", "ds_projection": "", "ds_thumbnail": "0189db06-6473-4d07-a2c3-21698ad1d4c1.png", "ds_thumb_from": 2, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "", "ds_from_station": null, "organization_id": "c0ec87bd-ed8d-423e-ad11-8dea17bd175d", "ds_serv_man": "敏玉芳", "ds_serv_phone": "0931-4967596", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "", "subject_codes": [ "170.4510" ], "quality_level": 3, "publish_time": "2024-12-30 17:15:52", "last_updated": "2025-01-04 15:45:01", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.NCDC.NIEER.DB6706.2024", "i18n": { "en": { "title": "Monitoring data of grassland sample plots in Gannan State from 2022-2023", "ds_format": "", "ds_source": "", "ds_quality": "", "ds_ref_way": "", "ds_abstract": "", "ds_time_res": "", "ds_acq_place": "Gannan Tibetan Autonomous Prefecture", "ds_space_res": "", "ds_projection": "", "ds_process_way": "", "ds_ref_instruction": "" } }, "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": [ "草原监测", "草原样地" ], "ds_subject_tags": [ "自然地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "甘南草原" ], "ds_time_tags": [ 2022, 2023 ], "ds_contributors": [ { "true_name": "姜佳昌", "email": "583267947@qq.com", "work_for": "甘肃省草原技术推广总站", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "姜佳昌", "email": "583267947@qq.com", "work_for": "甘肃省草原技术推广总站", "country": "中国" } ], "ds_managers": [ { "true_name": "姜佳昌", "email": "583267947@qq.com", "work_for": "甘肃省草原技术推广总站", "country": "中国" } ], "category": "生态" }