Cross-GIT HUC-12 Conservation Composite

Open the Data Source: https://gis.chesapeakebay.net/ags/rest/services/InterGIT/HUC12_Cons_Composite/MapServer/0 To develop this data resource, Chesapeake Bay Program Goal Implementation Teams (GITs) were asked to identify data layers that represented resources that reflected important geographic areas to conserve or restore based on the goals and outcomes of the 2014 Chesapeake Bay Watershed Agreement. There are several considerations for mapping geographic areas, including: Focus on places most important for living resources (fish, wildlife and people); Identify areas to focus restoration and conservation activities; Consider threats from land and climate change; and Identify areas where multiple partners are already working or consider priorities. Data was assembled from a wide variety of sources and reclassified according to values for conservation based on GIT-specific criteria. Data layers were reclassified into 30-m grids and combined into composite conservation suitability rankings. The 30-meter grids were aggregated to USGS HUC-12 boundaries to give a composite watershed conservation score. Finally, these watershed scores were ranked from high to low to establish quintile classes within each jurisdiction. The Cross-GIT HUC-12 Conservation Composite complements the Cross-GIT HUC-12 Restoration Composite: https://gis.chesapeakebay.net/ags/rest/services/InterGIT/HUC12_Rest_Composite/MapServer/0 Learn more about the Cross-GIT Mapping Project with this story map: https://gis.chesapeakebay.net/cross-git/overview/请访问以下数据源：https://gis.chesapeakebay.net/ags/rest/services/InterGIT/HUC12_Cons_Composite/MapServer/0 为开发本数据集，切萨皮克湾计划（Chesapeake Bay Program）的目标实施团队（Goal Implementation Teams，简称GITs）被要求识别可反映2014年《切萨皮克湾流域协议》目标与成果的、亟需保护或修复的重要地理区域对应的数据集图层。 制图工作需考量多项核心要素：优先聚焦对生物资源（鱼类、野生动物）及人类至关重要的区域；明确修复与保护行动的重点片区；评估土地利用与气候变化带来的潜在威胁；识别已有多合作方开展工作的区域或优先级工作区域。 本次研究的数据从多类来源整合汇集，并依据各GIT的专属标准，按照保护价值完成重分类。所有数据集图层均被重分类为30米栅格，并合并为综合保护适宜性排名。随后将30米栅格聚合至美国地质调查局（USGS）的HUC-12（Hydrologic Unit Code 12-digit）流域边界，以生成综合流域保护得分。最终对各流域得分由高至低排序，在各辖区内划分五分位等级。 本跨GIT HUC-12综合保护数据集可与跨GIT HUC-12综合修复数据集互为补充，其数据源链接为：https://gis.chesapeakebay.net/ags/rest/services/InterGIT/HUC12_Rest_Composite/MapServer/0 可通过此故事地图了解更多跨GIT制图项目的相关信息：https://gis.chesapeakebay.net/cross-git/overview/