Vegetation - Modoc Plateau - Devil's Garden, Adin Mountains, Jess Valley [ds2910]

CSU Chico's Geographical Information Center (GIC), with assistance from CDFW's Vegetation Classification and Mapping Program (VegCAMP) created a fine-scale vegetation and land use map of portions of the Modoc Plateau in California. The map follows the National Vegetation Mapping Classification standards as well A Manual of California Vegetation and covers the eco-region subsections Devil’s Garden and Adin Mountains. This map covers approximately 855,998 acres in Lassen and Modoc Counties. It was produced using a base of true-color 2018 one-meter National Agricultural Imagery Program (NAIP) imagery. Polygons were assessed for vegetation types, percent covers, clearing disturbance, invasive plant cover and other attributes. The minimum mapping unit for standard vegetation polygons, agriculture and urban areas and water are 1 acre, while for wetland and riparian areas, the MMU is 0.25 acres. Overall fuzzy map accuracy was 81.6%, but individual vegetation types varied in their accuracy. Please see the mapping report and the contingency tables for details to determine confidence in individual types. For detailed information please refer to the following reports: Boul, R., T. Keeler-Wolf, J. Ratchford, T. Haynes, D. Hickson, R. Yacoub, B. Harbert, J. Evens. 2021. Classification of the Vegetation of Modoc and Lassen Counties, California. Vegetation Classification and Mapping Program, California Department of Fish and Wildlife, Sacramento, CA ; https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=183030 Kreb, Brian and Geographical Information Center, California State University, Chico. Mapping Standards, Field Data Collection, and Accuracy Assessment for Vegetation Mapping in Modoc and Lassen Counties, California. Califoria Department of Fish and Wildlife; 2/1/2021. https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=189051加州州立大学奇科分校地理信息中心（Geographical Information Center, GIC）在加州鱼类与野生动物部（California Department of Fish and Wildlife, CDFW）植被分类与制图项目（Vegetation Classification and Mapping Program, VegCAMP）的协助下，完成了加利福尼亚州莫多克高原部分区域的高精度植被与土地利用制图。本制图遵循国家植被制图分类标准及《加利福尼亚植被手册》，覆盖的生态区子区块包括魔鬼花园与阿迪恩山脉。该制图范围覆盖拉森县与莫多克县境内约855,998英亩的区域，制图基底采用2018年发布的1米分辨率真彩色国家农业影像计划（National Agricultural Imagery Program, NAIP）影像。研究人员对多边形地块的植被类型、覆盖百分比、开垦干扰程度、入侵植物覆盖度及其他属性开展了评估。标准植被多边形、农业与城镇区域及水体的最小制图单元（minimum mapping unit, MMU）为1英亩，而湿地与河岸区域的最小制图单元为0.25英亩。整体模糊制图精度为81.6%，但不同植被类型的精度存在差异。若需评估单种植被类型的置信度，请参阅配套制图报告与列联表获取详细信息。如需获取详细资料，请参考以下报告： 1. Boul, R.、T. Keeler-Wolf、J. Ratchford、T. Haynes、D. Hickson、R. Yacoub、B. Harbert、J. Evens. 2021. 《加利福尼亚州莫多克县与拉森县植被分类》. 加州鱼类与野生动物部植被分类与制图项目，萨克拉门托，加利福尼亚州；https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=183030 2. Kreb, Brian与加州州立大学奇科分校地理信息中心. 《加利福尼亚州莫多克县与拉森县植被制图的制图标准、野外数据采集与精度评估》. 加州鱼类与野生动物部；2021年2月1日；https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=189051