Common use of Canopy Clause in Contracts

Canopy. Excessive cover by shrubs will be suppressed and the development of an appropriate canopy stratum encouraged. If necessary to reduce shrub density and where soil conditions would allow use of the equipment, these wetlands will be partially cleared using the Gyro-Trac; otherwise hand clearing will be used. If pond cypress (Taxodium ascendens) or hardwoods such as Nyssa sylvatica var. biflora, are not present or are under-represented to the extent that natural re-seeding is not expected to be effective, they will be planted randomly at a density of 100 trees per acre on irregular centers; trees will be 1-gallon size specimens. Burn Prescription. Fire will be allowed to burn in from surrounding communities from their prescribed xxxxx. See Fire Management Plan (Attachment A-2). Ground Cover. Plant species observations collected during field activities within the BPMB site indicate that sufficient species and individuals presently exist in the ground cover to regenerate the desired communities. Ground cover species are expected to seed in from surrounding areas and from the seed bank. The proposed prescribed fire should stimulate many dormant species in the ground cover seed bank. These areas are forested and should not need any planting Exotic Species Control. Chinese tallow (Sapium sebiferum) and cattail (Typha latifolia) were observed in several on-site wetlands and in roadside drainage ditches. Chinese tallow and cattails will be removed from the site during the first phases of the restoration. Hydrology. The site will be roller chopped at periodic intervals to restore a more natural internal drainage pattern. The road and drainage network will be re-engineered to retain water on the site for longer periods of time, restoring historical hydroperiod and hydrologic processes. Some minor expansion of wetland jurisdictional area may occur. Exhibit A-1-7 shows the locations of the hydrologic work proposed at the BPMB. The activities planned for the site are installation of hardened low water crossings, equalizer culverts, modification of existing drainage culverts and ditches (Exhibit A-1-7). Surface and ground water level data and field-verification that the appropriate elevation has been set will be used to verify the invert elevations at each crossing. If the invert elevations of the structures are found to be too high or low, they will be manipulated based on the field data collection results during the first few years of the project. That data will be used to verify the final elevations for each structure. Those portions of the existing roadway network that will not be used as part of the proposed road and trail network may be leveled out to surrounding grade if necessary to restore the flow patterns, using appropriate erosion control measures to protect the adjacent waters and wetlands.

Canopy. Excessive cover by shrubs The pines will be suppressed and the development of an appropriate canopy stratum encouraged. If necessary thinned to reduce shrub density and where soil conditions would allow use of the equipmentachieve a more typical flatwoods tree density, these wetlands will be partially cleared using the Gyro-Trac; otherwise hand clearing will be used. If pond cypress (Taxodium ascendens) or hardwoods such as Nyssa sylvatica var. biflora, are not present or are under-represented about 60 to the extent that natural re-seeding is not expected to be effective, they will be planted randomly at a density of 100 112 trees per acre on irregular centers; (<25% cover) to achieve a basal area of 40 to 70 ft2/acre. The removal of canopy trees will be 1done mechanically with typical logging equipment when site conditions warrant its use. During times when site conditions are not conducive to use of such equipment, other appropriate means will be used to remove the trees such that impacts to the substrate will not occur. In areas where the pines are too small to harvest, the site will be roller chopped and then the pines cut with a hydro-gallon size specimensaxe. Burn Prescription. Fire Growing season xxxxx every 2 to 8 years (growing season is April through July based on Xxxxx et al. (2003)). Initial years will be allowed on a 2 to burn in from surrounding communities from their prescribed xxxxx4 year schedule to xxxxxx redevelopment of the ground cover. See Fire Management Plan (Attachment A-2). Ground Cover. Plant species observations collected during field activities within the BPMB site indicate that sufficient species and individuals presently exist in the ground cover to regenerate the desired communities. Ground cover species are expected to seed in from surrounding areas and from the seed bank. The proposed prescribed fire should stimulate many dormant species in the ground cover seed bank. These areas If after three years the species diversity and density are forested and should not need any planting clearly trending toward successful establishment of target conditions, then native sod plugs, seeding or plantings will be done. Exotic Species Control. Chinese tallow (Sapium sebiferum) and cattail (Typha latifolia) were observed in several on-site wetlands and in roadside drainage ditches. Chinese tallow and cattails will be removed from the site during the first phases of the restoration. Hydrology. The site will be roller chopped at periodic intervals to restore a more natural internal drainage pattern. The road and drainage network will be re-engineered to retain water on portions of the site for longer periods of time, restoring historical enhancing hydroperiod and hydrologic processes. Some minor expansion of wetland jurisdictional area may occur. Attachment A-9 and Exhibit A-1-A-1- 7 shows the locations of the hydrologic work proposed at the BPMB. The activities planned for the site are installation of hardened low water crossings, equalizer culverts, modification of existing drainage culverts and ditches (Exhibit A-1-7). Surface and ground water level data and field-verification that the appropriate elevation has been set will be used to verify the invert elevations at each crossing. If the invert elevations of the structures are found to be too high or low, they will be manipulated based on the field data collection results during the first few years of the project. That data will be used to verify the final elevations for each structure. Those portions of the existing roadway network that will not be used as part of the proposed road and trail network may be leveled out to surrounding grade if necessary to restore the flow patterns, using appropriate erosion control measures to protect the adjacent waters and wetlands.