habitatmap_terr: the interpreted, terrestrial part of habitatmap_stdized

The data source habitatmap_terr is the further interpreted, terrestrial part of 'habitatmap_stdized' (which, in turn, was derived from the raw data source 'habitatmap'). It is a GeoPackage that contains: habitatmap_terr_polygons: a spatial polygon layer; habitatmap_terr_patches: a table in which every row corresponds with one patch. This version of habitatmap_terr was derived from version 'habitatmap_stdized_2018_v1' as follows: it excludes all polygons that are most probably aquatic habitat or RIB. These are the polygons for which all habitat or RIB patches are aquatic. In the process, a distinction was also made between 2190_a and 2190_overig. There is no exclusion of aquatic patches when these coexist with terrestrial patches in the same polygon; it excludes patches which most probably are no habitat or RIB at all. Those are the patches where code_orig contains "bos" or is equal to "6510,gh" or "9120,gh"; it translates several main type codes into a corresponding subtype which they almost always represent: 6410 -> 6410_mo, 6430 -> 6430_hf, 6510 -> 6510_hu, 7140 -> 7140_meso, 9130 -> 9130_end; it distinguishes types rbbhfl and rbbhf. See R-code in the GitHub repository 'n2khab-preprocessing' at commit d5d9ea5 for its creation from the habitatmap_stdized data source. A reading function to return the data source in a standardized way into the R environment is provided by the R-package n2khab. Attributes of habitatmap_terr_polygons: polygon_id description_orig: polygon description based on the original vegetation codes in the habitatmap data source description: based on description_orig but with the interpreted type codes source: states where description comes from: either habitatmap_stdized or habitatmap_stdized + interpretation Attributes of habitatmap_terr_patches: polygon_id code_orig: original vegetation code in raw habitatmap phab: proportion of polygon covered by type, as a percentage certain: TRUE when vegetation type is certain and FALSE when vegetation type is uncertain type: the interpreted habitat or RIB type source: states where type comes from: either habitatmap_stdized or habitatmap_stdized + interpretation数据来源habitatmap_terr是经进一步解译的habitatmap_stdized的陆地部分（而后者本身源自原始数据源habitatmap）。该文件为GeoPackage格式，包含以下内容： 1. habitatmap_terr_polygons：空间多边形图层； 2. habitatmap_terr_patches：每行对应一个斑块的数据表。 本次版本的habitatmap_terr源自habitatmap_stdized_2018_v1版本，处理流程如下： 1. 剔除所有大概率为水生栖息地或RIB的多边形：即所有栖息地或RIB斑块均为水生的多边形。处理过程中还区分了2190_a与2190_overig。若同一多边形内同时存在水生斑块与陆地斑块，则不剔除水生斑块； 2. 剔除大概率不属于栖息地或RIB的斑块：即code_orig字段包含"bos"，或等于"6510,gh"、"9120,gh"的斑块； 3. 将若干主类型代码转换为其几乎完全匹配的子类型：6410 → 6410_mo、6430 → 6430_hf、6510 → 6510_hu、7140 → 7140_meso、9130 → 9130_end； 4. 区分rbbhfl与rbbhf两种类型。 其生成代码可参见GitHub仓库n2khab-preprocessing中提交号为d5d9ea5的R代码，该代码基于habitatmap_stdized数据源完成处理。 R包n2khab提供了可将该数据源以标准化格式读入R环境的读取函数。 ### habitatmap_terr_polygons的属性： - polygon_id：多边形唯一标识符 - description_orig：基于habitatmap原始数据源中植被代码的多边形原始描述 - description：基于description_orig、但使用了解译后类型代码的更新描述 - source：标注description的来源：可为habitatmap_stdized，或habitatmap_stdized + 解译处理 ### habitatmap_terr_patches的属性： - polygon_id：所属多边形的唯一标识符 - code_orig：habitatmap原始数据源中的植被代码 - phab：该类型斑块占对应多边形面积的百分比 - certain：布尔型字段，植被类型确定时为TRUE，不确定时为FALSE - type：解译后的栖息地或RIB类型 - source：标注type的来源：可为habitatmap_stdized，或habitatmap_stdized + 解译处理