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City of Northampton Final Report-UribeCITY OF NORTHAMPTON, MASSACHUSETTS REPORT ON CONSERVATION LAND FORESTS AND THEIR IMPACT ON CARBON SEQUESTRATION PREPARED BY PAULA XIMENA URIBE JUNE 2022 UNIVERSITY OF MASSACHUSETTS AMHERST DEPARTMENT OF NATURAL RESOURCES & CONSERVATION 160 WAY, AMHERST, MA 01003-9285 TABLE OF CONTENTS Introduction.............................................................................................................................1 Methods ..................................................................................................................................3 Results.......................................................................................................................................6 Conclusions and Future Recommendations............................................................................10 Appendices...............................................................................................................................11 Introduction The City of Northampton is located in the Pioneer Valley of Western Massachusetts (Figure 1). As part of their commitment to conservation and climate change mitigation, 25% of the city is permanently protected from development (Figure 2). Though the present study focuses on carbon sequestration, there are many other relevant reasons to conserve land. Some of these include the protection of water resources, providing recreational and spiritual spaces for communities, preserving farmland and forests, as well as protecting wildlife habitat (Executive Office of Energy and Environmental Affairs). Overall, land conservation is a powerful tool in planning for greener and healthier communities. Indeed, conservation land not only sets aside green space for the above purposes. It also absorbs greenhouse gases while preventing greenhouse gas emissions that could result from development, “including deforestation, construction, and the additional driving required by poorly planned growth” (Land Trust Alliance). Conserving land protects communities’ natural resources, well-being and even regulates local climate. Using LiDAR and i-Tree data, this study analyzes the composition and impact of these protected lands on carbon sequestration. More specifically, based on i- Tree data, this study quantifies the amount of carbon monoxide (CO) annually sequestered by trees per square meter of each parcel. Furthermore, LiDAR data obtained from MassGIS is analyzed to determine the land cover make-up of the permanently protected green spaces. ArcPro GIS then allowed for necessary spatial analysis to identify carbon sinks within the City. By analyzing these i-Tree and LiDAR data, this project is able to identify underproductive parcels that could potentially be managed to increase their mitigating effect on climate change. Indeed, the data produced by the spatial analysis on ArcPro GIS also allows for projections in carbon sequestration gains with the addition of soil amendments. Examining the impacts and potentials of conservation land on CO sequestration is but a starting point in advocacy. Protecting our forests and farmlands safeguards the wellbeing of our current and future communities. Fig. 1: Study area Fig. 2: Location of protected land Uribe│2 Methods The present study had three separate but interconnected goals. 1.Quantify the benefits of trees in each protected parcel on i-Tree Canopy. 2.Conduct spatial analysis on ArcPro GIS in order to determine the size of each parcel and its effect on carbon sequestration by the square meter. 3.Calculate potential gains on CO sequestration of each parcel with the addition of soil amendments. i-Tree Canopy i-Tree canopy is a tool in i-Tree peer- reviewed software suite developed by the USDA Forest Service in collaboration with the U.S Forest Service, Davey Tree Expert Company, The Arbor Day Foundation, Society of Municipal Arborists, International Society of Arboriculture and Casey Trees (i- Tree). The purpose of i-Tree canopy is to accurately classify land cover classes such as grass, tree, and impervious surfaces over any desired geographical area. Based on these classifications, the software calculates impacts of tree canopy on CO sequestration, air pollution and stormwater. i-Tree canopy works in conjunction with Google Earth imagery, onto which it assigns randomly generated points that the user is then responsible for classifying. The tool is geographically relevant, as the calculations on landcover benefits follow equations that correspond to averages for trees in the locality. For example, the results for a similarly sized and forested lot in Chicago may the different from one in Northampton. The more points that the user identifies, the more accurate that results are. For this study, shapefiles of the protected lands were obtained from the City of Northampton and projected onto i-Tree for analysis. One-hundred points were classified for each of the 94 parcels. A detailed .PDF report on benefits was generated for each parcel (see sample report in Appendix A). All 94 reports were then organized into an Excel document to later be exported into ArcPro GIS. ArcPro GIS Once all 94 reports were carefully analyzed and organized into an excel file with uniform units, the area of each parcel was calculated in m². The sequestration data was then joined to the attribute table for the shapefiles. This allowed for calculations resulting in annual carbon sequestration per square meter (kg/ m²). To get more detailed information regarding total canopy cover, LiDAR data was able to further differentiate between different types of wetlands (palustrine Table 1: Data Sources Uribe│4 forested and palustrine emergent) as well as different types of forested land (evergreen and deciduous). To do this, raster LiDAR data from NOAA was clipped to show only the parcels in question. The now clipped raster data was analyzed to find the total percentages of each land cover. Sources for data are shown in Table 1. Soil Amendments In order to project gains in carbon sequestration for each parcel, the carbon sequestration data (kg/ m²) from ArcPro GIS was exported as an Excel document (see Appendix C). Once in Excel, gains in sequestration were calculated based on numbers provided by the Northampton Climate Resilience and Regeneration Plan (CRRP) Appendix on Carbon Sequestration in Forests and Soils. This report was obtained from the City directly. The report cites a study conducted by Brown, Miltner and Cogger that found that a single application of soil amendments increases average carbon sequestration by 0.22 metric tons per hectare per year over a 15-year time frame (2012). This number was then converted to match i-Tree and GIS data that was presented in kg/ m². Once units were uniform (.22 MT/ ha = .022 kg/ m²), it was possible to calculate gains in annual carbon sequestration for each parcel of protected land. This was done with the following equations: ASA= AS + 0.022(kg) TASA = ASA * A Abbreviation Definition ASA Annual sequestration with amendments (kg/ m²) AS Current annual sequestration (kg/m²) TASA Total annual sequestration with amendments (kg sequestered by the whole parcel) A Area of the parcel (m²) Once each parcel had current and projected rates of annual carbon sequestration, each scenario was projected for the next 15 years. For a clearer presentation of the data, the Descriptive Statistics tool found in Excel’s Data Analysis package was used. Uribe│5 Results The analysis of NOAA LiDAR data found that more than 75% of all protected parcels are forested (Figure 3). The trees across all parcels sequester a total of 3,336,533.07 kg (3,336.53 metric tons) carbon every year (Table 2). The productivity per square meter (Figure 4) varies amongst parcels due to their vegetation makeup (Figure 5). Annual carbon sequestration per square meter ranges from 0.033 kg to 0.25 kg (Figure 4). By looking at Figures 4 and 5, it becomes obvious that the parcels with the lowest carbon sequestration rates are those that have less forested land cover. Please see Appendix C for the carbon sequestration and storage data for each of the 94 parcels, and Appendix B for a reference map. Soil amendments are a successful tool in increasing the productivity of Northampton conservation land. Using amendments increases annual carbon sequestration from 3,336,533.07 kg to 3,673,580.67 kg. This number becomes even more significant at the end of the 15-year period following a single application of the amendments. Northampton conservation lands, without amendments, can sequester a total of 50,047,996.02 kg in 15 years. With amendments, this number increases to 55,103,710.07 kg. Table 3 compares the descriptive statistics for sequestration per square meter of conservation land (top left and right) as well as total sequestration of all parcels (bottom left and right). Please see Appendix D for data on each parcel. Fig. 3: Land cover composition for all protected land in Northampton Table 2: The impact of protected land on carbon sequestration Uribe│7 Fig. 4: Annual Carbon Sequestration (kg/m²) at each parcel Table 3: Comparison of carbon sequestration with and without soil amendments. Uribe│8 Fig. 5: Land cover types Uribe│9 Conclusions and Future Recommendations The numbers presented in this study may be hard to conceptualize due to their magnitude. i-Tree estimates that 1 metric ton of carbon monoxide is equivalent to about 3.66 metric tons of carbon dioxide (see Appendix A). At the same time, the EPA calculates that “a typical passenger vehicle emits about 4.6 metric tons of carbon dioxide every year” (EPA). That is, a car emits the equivalent of 1.26 metric tons of CO. Based on these numbers, Northampton’s conservation land has the capacity to sequester the yearly emissions of nearly 2,650 passenger vehicles. With the addition of soil amendments, this number increases to over 2,915 vehicles. While i-Tree provided data on overall carbon sequestration rates for the entirety of each parcel, the spatial analysis on ArcPro GIS identified parcels that could be reforested in order to increase their productivity. These parcels are represented by the white areas in Figure 4. It is important to keep in mind that the present study does not account for the impacts of cultivated land and wetlands on carbon sequestration. Future studies should focus on the potential of these land cover types, as they are known to be powerful carbon sinks. The protection and sustainable management of land are powerful tools in climate change mitigation. Uribe│11 Appendices Appendix A: i-Tree Canopy Sample Report Appendix B: FID Reference Map FIDs are used to identify polygons, in this case parcels, in ArcPro GIS. Numbers on this map correspond to FID numbers on Appendix C. Appendix C: Conservation Land Attribute Table.xlsx FID Site Name Area m² Annual CO Sequestration (kg/m² )CO Storage (kg/m² ) 0 Meadows Greenway 11838.7002 0.05337769911 1.614949942 1 Broad Brook-Fitzgerald Lake Greenway 14156.7998 0.2338960022 7.075210094 2 Mill River Greenway 2134.340088 0.2313019931 6.998079777 3 Mill River Greenway 7663.120117 0.216640994 6.537119865 4 Mill River Greenway 604.427002 0.1728439927 5.229300022 5 Saw Mill Hills Greenway 131218 0.238932997 7.228829861 6 Rainbow Beach Greenway 195394 0.2313069999 6.998030186 7 CT River Greenway - Meadows 13095.40039 0.1343940049 4.07614994 8 Mill River Greenway 5650.419922 0.2167450041 6.536059856 9 Mill River Greenway 19078.30078 0.2035170048 6.152100086 10 Burts Bog Greenway 1059.810059 0.2164320052 6.548130035 11 Burts Bog Greenway 509871 0.2313019931 6.998119831 12 CT River Greenway - Meadows 107733 0.04833469912 1.461159945 13 CT River Greenway - Meadows 14102.7998 0.0584619008 1.768769979 14 CT River Greenway - Meadows 61182.19922 0.05590000004 1.691830039 15 CT River Greenway - Meadows 12087 0.03304319829 0.9997310042 16 CT River Greenway - Meadows 212809 0.06863279641 2.076380014 17 Rocky Hill Greenway 4109.339844 0.2494609952 7.536799908 18 Roberts Meadow Greenway 50798.89844 0.08250559866 2.496059895 19 West Farms Greenway 48995.89844 0.2414419949 7.305860043 20 Broad Brook-Fitzgerald Lake Greenway 2812210 0.218592003 6.613520145 21 Broad Brook-Fitzgerald Lake Greenway 31124.09961 0.2288070023 6.921040058 22 Saw Mill Hills Greenway 237919 0.2389219999 7.228759766 23 Beaver Brook Greenway 105374 0.2414879948 7.305669785 24 Broad Brook-Fitzgerald Lake Greenway 19010.80078 0.2314389944 6.998060226 25 Rocky Hill Greenway 79180.5 0.2160820067 6.536660194 26 Rocky Hill Greenway 6214.859863 0.2233349979 6.767179966 27 Rocky Hill Greenway 1529.119995 0.2414709926 7.30576992 28 Mill River Greenway 39795.39844 0.1600289941 4.844880104 29 Saw Mill Hills Greenway 1974000 0.2414699942 7.305689812 30 Mill River Greenway 19397.5 0.216068998 6.536779881 31 Mineral Hills Greenway 265677 0.2262180001 6.844250202 32 Broad Brook-Fitzgerald Lake Greenway 92620 0.2388930023 7.228579998 33 Broad Brook-Fitzgerald Lake Greenway 68782.39844 0.2389879972 7.228740215 34 Mill River Greenway 5701.879883 0.2084250003 6.305240154 35 Mill River Greenway 2466.780029 0.216049999 6.536640167 36 CT River Greenway 20102.5 0.2238350064 6.767389774 37 Broad Brook-Fitzgerald Lake Greenway 35521.19922 0.2416010052 7.313159943 38 Mary Browns Dingle 6320.22998 0.238270998 7.228509903 39 Broad Brook-Fitzgerald Lake Greenway 159070 0.2465430051 7.459249973 40 Saw Mill Hills Greenway 165574 0.2109429985 6.382900238 41 Barrett St. Marsh Greenway 104988 0.1728170067 5.22935009 42 Mineral Hills Greenway 367438 0.2287729979 6.921199799 43 Burts Bog Greenway 28361.5 0.2287030071 6.921239853 44 Mill River Greenway 161142 0.2182080001 6.60270977 45 Broad Brook-Fitzgerald Lake Greenway 46926.10156 0.233919993 7.074810028 46 Broad Brook - Fitzgerald Lake Greenway 101172 0.1067939997 3.229830027 47 Mill River Greenway 13594.59961 0.2415670007 7.309740067 Conservation Land Attribute Table.xlsx FID Site Name Area m² Annual CO Sequestration (kg/m² )CO Storage (kg/m² ) 48 Mineral Hills Greenway 892990 0.2440080047 7.382639885 49 Rocky Hill Greenway 433706 0.2262180001 6.844329834 50 Mineral Hills Greenway 145133 0.236402005 7.151939869 51 Mineral Hills Greenway - Hannum Brook 147691 0.2440399975 7.382730007 52 Saw Mill Hills Greenway 71825.89844 0.2414920032 7.306009769 53 Mineral Hills Greenway - Hannum Brook 299039 0.2236720026 6.767469883 54 Saw Mill Hills Greenway - Roberts Hill 506256 0.2338490039 7.074940205 55 Saw Mill Hills Greenway 83653.79688 0.2287109941 6.921189785 56 Saw Mill Hills Greenway 68796.89844 0.2440810055 7.382679939 57 Florence Greenway 18184.30078 0.2185110003 6.613699913 58 Broad Brook-Fitzgerald Lake Greenway 115079 0.2541530132 7.690090179 59 Broad Brook-Fitzgerald Lake Greenway 137614 0.238903001 7.228789806 60 Burts Bog Greenway 19296.90039 0.04575230181 1.384240031 61 Mineral Hills Greenway - Galena 165549 0.2389219999 7.228859901 62 CT River Greenway - Meadows 26709.40039 0.2336789966 7.074910164 63 Beaver Brook Greenway 423567 0.2135130018 6.459700108 64 Beaver Brook/Broad Brook Greenway 76046.70313 0.2288040072 6.920909882 65 Rocky Hill Greenway 11049.7998 0.2339839935 7.075349808 66 Mineral Hills Greenway - Marble Brook 485537 0.2338510007 7.074960232 67 Broad Brook-Fitzgerald Lake Greenway 219710 0.203354001 6.152060032 68 Hannum Brook Greenway 59311.80078 0.1982260048 5.998459816 69 Parsons Brook Greenway - Pine Barrens 83478.89844 0.1677899957 5.075540066 70 Parsons Brook Greenway - Pine Barrens 104775 0.1245080009 3.768229961 71 CT River Greenway 364651 0.1982540041 5.998320103 72 CT River Greenway 148436 0.1651969999 4.997409821 73 Parsons Brook Greenway - Pine Barrens 72711.79688 0.2364290059 7.15199995 74 Parsons Brook Greenway - Pine Barrens 38985.69922 0.2313009948 6.998119831 75 Parsons Brook Greenway - Pine Barrens 357423 0.2084310055 6.306029797 76 Saw Mill Hills Greenway 82669.79688 0.2541480064 7.690070152 77 Rocky Hill Greenway 426352 0.1194749996 3.614439964 78 Rocky Hill Greenway 28110.80078 0.2184800059 6.613770008 79 Beaver Brook Greenway 184667 0.2465610057 7.459400177 80 Saw Mill Hills Greenway 96134.89844 0.2440299988 7.382430077 81 Parsons Brook Greenway - Pine Barrens 2227.699951 0.1880930066 5.690810204 82 Broad Brook Greenway 24106.19922 0.2337000072 7.074969769 83 Mill River Greenway 75253.79688 0.2262720019 6.844349861 84 Burts Bog Greenway 21059.80078 0.2463980019 7.459579945 85 CT River Greenway 12186.09961 0.1883440018 5.69051981 86 Broad Brook-Fitzgerald Lake Greenway 220642 0.2363740057 7.151869774 87 Broad Brook-Fitzgerald Lake Greenway 6925.319824 0.229241997 6.920479774 88 Broad Brook-Fitzgerald Lake Greenway 33416.5 0.2337429971 7.074989796 89 Parsons Brook Greenway - Pine Barrens 1626.130005 0.1677599996 5.075570107 90 Mineral Hills Greenway 12584.5 0.2544690073 7.690289974 91 Mineral Hills Greenway 62929.10156 0.2491080016 7.536389828 92 Mill River Greenway 5002.919922 0.1831440032 5.537849903 93 Saw Mill Hills Greenway 52443.19922 0.241485998 7.305640221 FID Site Name Area m² Annual Sequestration (kg/m²) Annual Sequestration (kg/m²) with amendments Total annual sequestration (kg) Total annual sequestration (kg) with amendments 0 Meadows Greenway 11838.70 0.05 0.08 631.92 892.37 1 Broad Brook-Fitzgerald Lake Greenway 14156.80 0.23 0.26 3,311.22 3,622.67 2 Mill River Greenway 2134.34 0.23 0.25 493.68 540.63 3 Mill River Greenway 7663.12 0.22 0.24 1,660.15 1,828.73 4 Mill River Greenway 604.43 0.17 0.19 104.47 117.77 5 Saw Mill Hills Greenway 131218.00 0.24 0.26 31,352.30 34,239.11 6 Rainbow Beach Greenway 195394.00 0.23 0.25 45,195.94 49,494.67 7 CT River Greenway - Meadows 13095.40 0.13 0.16 1,759.94 2,048.04 8 Mill River Greenway 5650.42 0.22 0.24 1,224.70 1,349.01 9 Mill River Greenway 19078.30 0.20 0.23 3,882.75 4,302.48 10 Burts Bog Greenway 1059.81 0.22 0.24 229.38 252.69 11 Burts Bog Greenway 509871.00 0.23 0.25 117,934.02 129,151.34 12 CT River Greenway - Meadows 107733.00 0.05 0.07 5,207.24 7,577.37 13 CT River Greenway - Meadows 14102.80 0.06 0.08 824.48 1,134.74 14 CT River Greenway - Meadows 61182.20 0.06 0.08 3,420.09 4,766.09 15 CT River Greenway - Meadows 12087.00 0.03 0.06 399.39 665.31 16 CT River Greenway - Meadows 212809.00 0.07 0.09 14,605.67 19,287.47 17 Rocky Hill Greenway 4109.34 0.25 0.27 1,025.12 1,115.53 18 Roberts Meadow Greenway 50798.90 0.08 0.10 4,191.19 5,308.77 Appendix D: Soil Amendments Calculations 19 West Farms Greenway 48995.90 0.24 0.26 11,829.69 12,907.58 20 Broad Brook-Fitzgerald 2812210.00 0.22 0.24 614,726.52 676,595.24 21 Broad Brook-Fitzgerald 31124.10 0.23 0.25 7,121.40 7,806.14 22 Saw Mill Hills Greenway 237919.00 0.24 0.26 56,844.20 62,078.30 23 Beaver Brook Greenway 105374.00 0.24 0.26 25,446.53 27,764.78 24 Broad Brook-Fitzgerald 19010.80 0.23 0.25 4,399.85 4,818.08 25 Rocky Hill Greenway 79180.50 0.22 0.24 17,109.50 18,851.45 26 Rocky Hill Greenway 6214.86 0.22 0.25 1,387.99 1,524.72 27 Rocky Hill Greenway 1529.12 0.24 0.26 369.24 402.88 28 Mill River Greenway 39795.40 0.16 0.18 6,368.44 7,243.92 29 Saw Mill Hills Greenway 1974000.00 0.24 0.26 476,662.08 520,089.77 30 Mill River Greenway 19397.50 0.22 0.24 4,191.19 4,617.94 31 Mineral Hills Greenway 265677.00 0.23 0.25 60,100.99 65,945.81 32 Broad Brook-Fitzgerald 92620.00 0.24 0.26 22,126.24 24,163.91 33 Broad Brook-Fitzgerald 68782.40 0.24 0.26 16,438.19 17,951.38 34 Mill River Greenway 5701.88 0.21 0.23 1,188.41 1,313.86 35 Mill River Greenway 2466.78 0.22 0.24 532.95 587.22 36 CT River Greenway 20102.50 0.22 0.25 4,499.64 4,941.90 37 Broad Brook-Fitzgerald 35521.20 0.24 0.26 8,581.97 9,363.42 38 Mary Browns Dingle 6320.23 0.24 0.26 1,505.93 1,644.97 39 Broad Brook-Fitzgerald 159070.00 0.25 0.27 39,217.60 42,717.14 40 Saw Mill Hills Greenway 165574.00 0.21 0.23 34,926.61 38,569.30 41 Barrett St. Marsh 104988.00 0.17 0.19 18,143.69 20,453.45 42 Mineral Hills Greenway 367438.00 0.23 0.25 84,059.74 92,143.53 43 Burts Bog Greenway 28361.50 0.23 0.25 6,486.37 7,110.31 44 Mill River Greenway 161142.00 0.22 0.24 35,162.48 38,707.60 45 Broad Brook-Fitzgerald 46926.10 0.23 0.26 10,976.94 12,009.33 46 Broad Brook - Fitzgerald 101172.00 0.11 0.13 10,804.57 13,030.35 47 Mill River Greenway 13594.60 0.24 0.26 3,284.01 3,583.09 48 Mineral Hills Greenway 892990.00 0.24 0.27 217,896.70 237,542.49 49 Rocky Hill Greenway 433706.00 0.23 0.25 98,112.03 107,653.64 50 Mineral Hills Greenway 145133.00 0.24 0.26 34,309.73 37,502.66 51 Mineral Hills Greenway - 147691.00 0.24 0.27 36,042.45 39,291.71 52 Saw Mill Hills Greenway 71825.90 0.24 0.26 17,345.37 18,925.55 53 Mineral Hills Greenway - Hannum Brook299039.00 0.22 0.25 66,886.73 73,465.51 54 Saw Mill Hills Greenway - RobertsHill506256.00 0.23 0.26 118,387.61 129,525.09 55 Saw Mill Hills Greenway 83653.80 0.23 0.25 19,132.53 20,972.93 56 Saw Mill Hills Greenway 68796.90 0.24 0.27 16,791.99 18,305.55 57 Florence Greenway 18184.30 0.22 0.24 3,973.47 4,373.52 58 Broad Brook-Fitzgerald 115079.00 0.25 0.28 29,247.64 31,779.41 59 Broad Brook-Fitzgerald 137614.00 0.24 0.26 32,876.37 35,903.91 60 Burts Bog Greenway 19296.90 0.05 0.07 882.88 1,307.41 61 Mineral Hills Greenway - Galena 165549.00 0.24 0.26 39,553.25 43,195.38 62 CT River Greenway - 26709.40 0.23 0.26 6,241.43 6,829.03 63 Beaver Brook Greenway 423567.00 0.21 0.24 90,437.25 99,755.54 64 Beaver Brook/Broad 76046.70 0.23 0.25 17,399.80 19,072.82 65 Rocky Hill Greenway 11049.80 0.23 0.26 2,585.48 2,828.57 66 Mineral Hills Greenway - 485537.00 0.23 0.26 113,543.24 124,225.13 67 Broad Brook-Fitzgerald 219710.00 0.20 0.23 44,678.85 49,512.53 68 Hannum Brook 59311.80 0.20 0.22 11,757.11 13,062.00 69 Parsons Brook Greenway 83478.90 0.17 0.19 14,006.93 15,843.46 70 Parsons Brook Greenway 104775.00 0.12 0.15 13,045.32 15,350.38 71 CT River Greenway 364651.00 0.20 0.22 72,293.55 80,315.84 72 CT River Greenway 148436.00 0.17 0.19 24,521.20 27,786.77 73 Parsons Brook Greenway 72711.80 0.24 0.26 17,191.15 18,790.84 74 Parsons Brook Greenway 38985.70 0.23 0.25 9,017.42 9,875.12 75 Parsons Brook Greenway 357423.00 0.21 0.23 74,498.01 82,361.34 76 Saw Mill Hills Greenway 82669.80 0.25 0.28 21,010.40 22,829.10 77 Rocky Hill Greenway 426352.00 0.12 0.14 50,938.42 60,318.15 78 Rocky Hill Greenway 28110.80 0.22 0.24 6,141.64 6,760.09 79 Beaver Brook Greenway 184667.00 0.25 0.27 45,531.60 49,594.36 80 Saw Mill Hills Greenway 96134.90 0.24 0.27 23,459.80 25,574.77 81 Parsons Brook Greenway 2227.70 0.19 0.21 419.02 468.02 82 Broad Brook Greenway 24106.20 0.23 0.26 5,633.62 6,163.96 83 Mill River Greenway 75253.80 0.23 0.25 17,027.86 18,683.41 84 Burts Bog Greenway 21059.80 0.25 0.27 5,189.10 5,652.41 85 CT River Greenway 12186.10 0.19 0.21 2,295.18 2,563.27 86 Broad Brook-Fitzgerald 220642.00 0.24 0.26 52,154.05 57,008.16 87 Broad Brook-Fitzgerald 6925.32 0.23 0.25 1,587.57 1,739.93 88 Broad Brook-Fitzgerald 33416.50 0.23 0.26 7,810.86 8,546.04 89 Parsons Brook Greenway 1626.13 0.17 0.19 272.80 308.57 90 Mineral Hills Greenway 12584.50 0.25 0.28 3,202.36 3,479.22 91 Mineral Hills Greenway 62929.10 0.25 0.27 15,676.15 17,060.58 92 Mill River Greenway 5002.92 0.18 0.21 916.26 1,026.32 93 Saw Mill Hills Greenway 52443.20 0.24 0.26 12,664.30 13,818.05 Totals 15320341.58 19.35 21.42 3,336,533.07 3,673,580.67 At the end of 15 year time-frame50,047,996.02 55,103,710.07 *What is an FID? FIDs are used to identify polygons, in this case parcels, in ArcPro GIS. Please see Appendix B. References Brown, S., Miltner, E., & Cogger, C. (2012). Carbon Sequestration Potential in Urban Soils. In R. Lal & B. Augustin (Eds.), Carbon Sequestration in Urban Ecosystems (pp. 173–196). Springer. https://doi.org/10.1007/978-94-007-2366-5 Climate Change. Land Trust Alliance. https://www.landtrustalliance.org/topics/climate-change Executive Office of Energy and Environmental Affairs. Land Conservation Benefits. Commonwealth of Massachusetts. https://www.mass.gov/service-details/land-conservation-benefits References. i-Tree. https://www.scribbr.com/apa-examples/website/