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snippet: This Mechanical Treatment Feasibility raster provides information about where mechanical fuel treatments of woody fuels are difficult for legal or operational reason, and where they are not.
summary: This Mechanical Treatment Feasibility raster provides information about where mechanical fuel treatments of woody fuels are difficult for legal or operational reason, and where they are not.
accessInformation: Golden Gate National Parks Conservancy, OneTam, Tukman Geospatial LLC
thumbnail:
maxScale: 18018.5223850094
typeKeywords: ["Data","Service","Image Service","ArcGIS Server"]
description: <DIV STYLE="text-align:Left;"><DIV><DIV><P STYLE="margin:0 0 6 0;"><SPAN><SPAN>This 5-meter resolution Mechanical Treatment Feasibility raster provides information about where mechanical fuel treatments are difficult for legal or operational reason, and where they are not. This assessment will screen out locations where any proposed mechanical fuel treatments will be infeasible due to legal or operational constraints. This assessment does not include the feasibility of prescribed burning, which has different operational and legal constraints and can occur in areas where mechanical treatments may not be feasible.</SPAN></SPAN></P><P STYLE="margin:0 0 6 0;"><SPAN><SPAN>The Marin Mechanical Treatment Feasibility was based on a similar analysis by North et. al (2015) for mechanized treatment feasibility across National Forests in the Sierra Nevada. The Mechanical Treatment Feasibility assessment provides a map of treatment feasibility based on the following set of criteria: slope, proximity to hydrology/wetlands, and distance to roads/trails. This assessment utilizes a set of geospatial datasets to spatially represent these constraints on mechanical treatment of woody vegetation.</SPAN></SPAN></P><P STYLE="margin:0 0 6 0;"><SPAN><SPAN>The table below highlights each geospatial dataset, its source, its constraint on mechanical treatment of woody vegetation and the processing steps performed on the geospatial dataset to create the Mechanical Treatment Feasibility raster. The far-right column also shows what label is applied to an area if a constraint is met. If multiple constraints apply, the area will be labelled as ‘</SPAN></SPAN><SPAN STYLE="font-weight:bold;"><SPAN>Limited Feasibility - Multiple Constraints</SPAN></SPAN><SPAN><SPAN>.’ If there are no constraints, the area will be labelled either ‘Feasible - Trail Access Only,’ if it is near a trail but not a road, and ‘</SPAN></SPAN><SPAN STYLE="font-weight:bold;"><SPAN>Feasible - Road Access</SPAN></SPAN><SPAN><SPAN>,’ otherwise.</SPAN></SPAN></P><TABLE><TBODY><TR><TD><P STYLE="text-align:Center;margin:0 0 0 0;"><SPAN STYLE="font-weight:bold;"><SPAN>Data Set</SPAN></SPAN></P></TD><TD><P STYLE="text-align:Center;margin:0 0 0 0;"><SPAN STYLE="font-weight:bold;"><SPAN>Source</SPAN></SPAN></P></TD><TD><P STYLE="text-align:Center;margin:0 0 0 0;"><SPAN STYLE="font-weight:bold;"><SPAN>Mechanical Treatment Constraint</SPAN></SPAN></P></TD><TD><P STYLE="text-align:Center;margin:0 0 0 0;"><SPAN STYLE="font-weight:bold;"><SPAN>Processing/Label</SPAN></SPAN></P></TD></TR><TR><TD><P STYLE="text-align:Center;margin:0 0 0 0;"><SPAN STYLE="font-style:italic;"><SPAN>Slope</SPAN></SPAN></P></TD><TD><P STYLE="text-align:Center;"><SPAN><SPAN>Lidar derived slope from countywide lidar (2018)</SPAN></SPAN></P></TD><TD><P STYLE="text-align:Center;"><SPAN><SPAN>Areas with steep terrain are difficult to access with vehicles and make it difficult for humans to perform mechanical treatment activities.</SPAN></SPAN></P></TD><TD><P STYLE="text-align:Center;"><SPAN><SPAN>If &gt;=35% slope, but no other constraints assign: </SPAN></SPAN><SPAN /><SPAN><SPAN>"</SPAN></SPAN><SPAN STYLE="font-weight:bold;"><SPAN>Limited Feasibility - Steep</SPAN></SPAN><SPAN><SPAN>"</SPAN></SPAN></P></TD></TR><TR><TD><P STYLE="text-align:Center;margin:0 0 0 0;"><SPAN STYLE="font-style:italic;"><SPAN>Water, Wetland, and Riparian</SPAN></SPAN></P></TD><TD><P STYLE="text-align:Center;"><SPAN><SPAN>Marin Countywide Fine Scale Veg Map (2021); Marin lidar derived National Hydrography Dataset</SPAN></SPAN></P></TD><TD><P STYLE="text-align:Center;"><SPAN><SPAN>Mechanized treatment of woody vegetation is difficult or not necessary to conduct in riparian, wetland, and areas adjacent to water. </SPAN></SPAN></P></TD><TD><P STYLE="text-align:Center;"><SPAN><SPAN>If area is mapped in the vegetation map as riparian vegetation, herbaceous wetland, water, or is within 100 feet of a perennial stream, 50 feet of an intermittent stream, or 25 feet of an ephemeral stream, or within 200 feet of an ‘NHD Area’ polygon, assign: </SPAN></SPAN></P><P STYLE="text-align:Center;"><SPAN><SPAN>"</SPAN></SPAN><SPAN STYLE="font-weight:bold;"><SPAN>Limited Feasibility - Near Water/Wetland/Riparian</SPAN></SPAN><SPAN><SPAN>"</SPAN></SPAN></P></TD></TR><TR><TD><P STYLE="text-align:Center;margin:0 0 0 0;"><SPAN STYLE="font-style:italic;"><SPAN>Roads, Trails, and Impervious</SPAN></SPAN></P></TD><TD><P STYLE="text-align:Center;"><SPAN><SPAN>Marin County Roads and Marin County Impervious Surfaces Map (2020)</SPAN></SPAN></P></TD><TD><P STYLE="text-align:Center;"><SPAN><SPAN>Mechanical treatment requires road or trail access. Areas not road or trail-accessible have low feasibility for mechanical treatment.</SPAN></SPAN></P></TD><TD><P STYLE="text-align:Center;"><SPAN><SPAN>If areas is &gt;= 500 feet from a road or paved parking lot or </SPAN></SPAN><SPAN /><SPAN><SPAN>&gt;= 200 feet from a trail, with no other constraints, assign: </SPAN></SPAN></P><P STYLE="text-align:Center;"><SPAN><SPAN>"</SPAN></SPAN><SPAN STYLE="font-weight:bold;"><SPAN>Limited Feasibility - Poor Access</SPAN></SPAN><SPAN><SPAN>"</SPAN></SPAN></P></TD></TR></TBODY></TABLE><P STYLE="margin:0 0 11 0;"><SPAN STYLE="font-weight:bold;">References:</SPAN><SPAN /><SPAN><SPAN>North, M., Brough, A., Long, J., Collins, B., Bowden, P., Yasuda, D., Miller, J. and Sugihara, N., 2015. Constraints on mechanized treatment significantly limit mechanical fuels reduction extent in the Sierra Nevada. </SPAN></SPAN><SPAN STYLE="font-style:italic;"><SPAN>Journal of Forestry</SPAN></SPAN><SPAN><SPAN>, </SPAN></SPAN><SPAN STYLE="font-style:italic;"><SPAN>113</SPAN></SPAN><SPAN><SPAN>(1), pp.40-48.</SPAN></SPAN></P><P><SPAN /></P></DIV></DIV></DIV>
licenseInfo:
catalogPath:
title: MARIN_MECHANICAL_TREATMENT_FEASIBILITY_V1_tif
type: Image Service
url: https://zenith.cnr.berkeley.edu/arcgis
tags: ["Treatment Feasibility","Wildfire","Marin"]
culture: en-US
name: MARIN_MECHANICAL_TREATMENT_FEASIBILITY_V1_tif
guid:
minScale: 1153185.4326406
spatialReference: NAD_1983_UTM_Zone_10N