杭州湾湿地是中国重要的河口型滨海湿地。已经在杭州湾岸线变迁、杭州湾湿地生态系统服务价值和杭州湾滨海土地利用格局等方面开展了研究，评估了人类活动对杭州湾滨海湿地的影响。研究表明，随着经济的快速发展，杭州湾滨海用地空间变化剧烈，尤其是以围垦养殖为主的用地方式，对杭州湾滨海湿地环境产生了显著的负面影响。因此，客观、准确地揭示杭州湾滨海养殖用地的时空分布及其变化规律，对保护该区域滨海湿地具有重要意义。
", "ds_source": "本研究利用了Landsat TM/ETM +/OLI 影像数据。
", "ds_process_way": "采用面向对象的决策树分类方法，提取研究区的滨海养殖用地的空间分布信息。采用分区统计和缓冲区分析方法，对研究区滨海养殖用地的面积和分布进行分析。
", "ds_quality": "数据质量良好。
", "ds_acq_start_time": "2020-01-01 00:00:00", "ds_acq_end_time": "2020-12-31 00:00:00", "ds_acq_place": "杭州湾", "ds_acq_lon_east": null, "ds_acq_lat_south": null, "ds_acq_lon_west": null, "ds_acq_lat_north": null, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "open-access", "ds_total_size": 3070005, "ds_files_count": 5, "ds_format": "", "ds_space_res": null, "ds_time_res": "", "ds_coordinate": "krasovsky1940", "ds_projection": "Krasovsky_1940_Albers", "ds_thumbnail": "1ac51a97-7488-401a-9b1f-36fdaeae39c1.png", "ds_thumb_from": 0, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "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": "d2c052ce-d283-4a48-8962-6a3dbcb03b8e", "ds_serv_man": "敏玉芳", "ds_serv_phone": "0931-4967596", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "", "subject_codes": [ "170.45" ], "quality_level": 3, "publish_time": "2025-05-29 17:22:09", "last_updated": "2025-05-29 17:22:09", "protected": false, "protected_to": null, "lang": "zh", "cstr": "https://cstr.cn/33108.11.sciencedb.IGA.00996", "i18n": { "en": { "title": "30m resolution coastal aquaculture land distribution dataset in Hangzhou Bay and its surrounding areas (2020)", "ds_format": "", "ds_source": "This study utilized Landsat TM/ETM+/OLI image data.
", "ds_quality": "The data quality is good.
", "ds_ref_way": "", "ds_abstract": "Hangzhou Bay Wetland is an important estuarine coastal wetland in China. Studies have been carried out on the shoreline change of Hangzhou Bay, the ecosystem service value of Hangzhou Bay Wetland and the coastal land use pattern of Hangzhou Bay, and the impact of human activities on the coastal wetland of Hangzhou Bay has been evaluated. The research shows that with the rapid development of economy, the coastal land space of Hangzhou Bay has changed dramatically, especially the land use mode of reclamation and aquaculture, which has a significant negative impact on the coastal wetland environment of Hangzhou Bay. Therefore, it is of great significance to objectively and accurately reveal the temporal and spatial distribution and change law of coastal aquaculture land in Hangzhou Bay for the protection of coastal wetlands in this area.
", "ds_time_res": "", "ds_acq_place": "hangzhou bay", "ds_space_res": "", "ds_projection": "Krasovsky_1940_Albers", "ds_process_way": "An object-oriented decision tree classification method was used to extract spatial distribution information of coastal aquaculture land in the study area. The area and distribution of coastal aquaculture land in the study area were analysed using zonal statistics and buffer zone analysis methods.
", "ds_ref_instruction": "When using data, users should clearly declare the source of the data in the main text and cite the citation method provided by this metadata in the reference section." } }, "submit_center_id": "ncdc", "data_level": 0, "license_type": "CC BY 4.0", "ds_topic_tags": [ "滨海养殖用地", "遥感监测", "分布", "杭州湾" ], "ds_subject_tags": [ "地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "杭州湾" ], "ds_time_tags": [], "ds_contributors": [ { "true_name": "任春颖", "email": "renchy@iga.ac.cn", "work_for": "中国科学院东北地理与农业生态研究所", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "任春颖", "email": "renchy@iga.ac.cn", "work_for": "中国科学院东北地理与农业生态研究所", "country": "中国" } ], "ds_managers": [ { "true_name": "任春颖", "email": "renchy@iga.ac.cn", "work_for": "中国科学院东北地理与农业生态研究所", "country": "中国" } ], "category": "生态" }