{ "currentVersion": 10.71, "id": 1, "name": "Forested Buffers", "type": "Feature Layer", "description": "The dataset displays the presence and absence of forested areas within a 100 foot-buffer of a stream or waterbody. The National Hydrography Dataset (NHD) stream layer developed by the United States Geological Survey was buffered 100-feet on each side of the stream centerline to determine stream buffers in Maryland. A shoreline file developed by the Maryland State Highway Administration was buffered 100-feet to determine the shoreline buffer in Maryland. The resulting buffer layers were clipped with a forest cover layer to determine the presence and absence of forest in those buffers. The forest cover layer was derived from a tree canopy layer developed by the Community College of Baltimore County, Catonsville, Geography Department. The tree canopy was developed using 2007 National Agriculture Imagery Program (NAIP) color infra-red 1-meter imagery. To determine areas forested, contiguous areas of tree cover less than 1 acre were removed from the dataset and then used for clipping the stream and shoreline buffers. ", "geometryType": "esriGeometryPolygon", "sourceSpatialReference": { "wkid": 102100, "latestWkid": 3857 }, "copyrightText": "MD iMAP, Robert Feldt, DNR, Forest Service; Kevin Coyne, DNR, Geospatial Information and Analysis Division", "parentLayer": null, "subLayers": [], "minScale": 0, "maxScale": 0, "drawingInfo": { "renderer": { "type": "uniqueValue", "field1": "Buffer", "field2": null, "field3": null, "defaultSymbol": null, "defaultLabel": null, "uniqueValueInfos": [ { "symbol": { "type": "esriSFS", "style": "esriSFSSolid", "color": [ 112, 168, 0, 255 ], "outline": { "type": "esriSLS", "style": "esriSLSSolid", "color": [ 0, 0, 0, 0 ], "width": 0.4 } }, "value": "Forested", "label": "Forested", "description": "" }, { "symbol": { "type": "esriSFS", "style": "esriSFSSolid", "color": [ 205, 102, 102, 255 ], "outline": { "type": "esriSLS", "style": "esriSLSSolid", "color": [ 0, 0, 0, 0 ], "width": 0.4 } }, "value": "Unforested", "label": "Unforested", "description": "" }, { "symbol": { "type": "esriSFS", "style": "esriSFSSolid", "color": [ 178, 178, 178, 255 ], "outline": { "type": "esriSLS", "style": "esriSLSSolid", "color": [ 0, 0, 0, 0 ], "width": 0.4 } }, "value": "No Data", "label": "No Data", "description": "" } ], "fieldDelimiter": "," }, "transparency": 0, "labelingInfo": null }, "defaultVisibility": true, "extent": { "xmin": -8848457.96, "ymin": 4564003.809799999, "xmax": -8354589.271500001, "ymax": 4825776.071800001, "spatialReference": { "wkid": 102100, "latestWkid": 3857 } }, "hasAttachments": false, "htmlPopupType": "esriServerHTMLPopupTypeAsHTMLText", "displayField": "Buffer", "typeIdField": null, "subtypeFieldName": null, "subtypeField": null, "defaultSubtypeCode": null, "fields": [ { "name": "OBJECTID", "type": "esriFieldTypeOID", "alias": "GIS Object ID", "domain": null }, { "name": "Shape", "type": "esriFieldTypeGeometry", "alias": "GIS Shape", "domain": null }, { "name": "Buffer", "type": "esriFieldTypeString", "alias": "Buffer", "length": 50, "domain": null }, { "name": "Waterbody", "type": "esriFieldTypeString", "alias": "Waterbody", "length": 50, "domain": null }, { "name": "County", "type": "esriFieldTypeString", "alias": "County", "length": 50, "domain": null }, { "name": "Shape.STArea()", "type": "esriFieldTypeDouble", "alias": "Shape.STArea()", "domain": null }, { "name": "Shape.STLength()", "type": "esriFieldTypeDouble", "alias": "Shape.STLength()", "domain": null } ], "geometryField": { "name": "Shape", "type": "esriFieldTypeGeometry", "alias": "GIS Shape" }, "indexes": [ { "name": "R38_pk", "fields": "OBJECTID", "isAscending": true, "isUnique": true, "description": "" }, { "name": "S28_idx", "fields": "Shape", "isAscending": true, "isUnique": true, "description": "" } ], "subtypes": [], "relationships": [], "canModifyLayer": true, "canScaleSymbols": false, "hasLabels": false, "capabilities": "Map,Query,Data", "maxRecordCount": 7000, "supportsStatistics": true, "supportsAdvancedQueries": true, "supportedQueryFormats": "JSON, geoJSON", "isDataVersioned": false, "ownershipBasedAccessControlForFeatures": {"allowOthersToQuery": true}, "useStandardizedQueries": true, "advancedQueryCapabilities": { "useStandardizedQueries": true, "supportsStatistics": true, "supportsHavingClause": true, "supportsCountDistinct": true, "supportsOrderBy": true, "supportsDistinct": true, "supportsPagination": true, "supportsTrueCurve": true, "supportsReturningQueryExtent": true, "supportsQueryWithDistance": true, "supportsSqlExpression": true }, "supportsDatumTransformation": true, "supportsCoordinatesQuantization": true }