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A. A Plant Preservation and Salvage Plan on an aerial photograph, taken within a maximum of three years of submittal, at a minimum scale of one inch equals 60 feet showing the locations of the following. Any aerial photograph submitted, which was taken more than one year prior to submittal, shall be accompanied by a note on the plans stating that the site is substantially unchanged from the date of the aerial photograph.
1. Limits of all areas to be graded;
2. Location of proposed roads and utility easements;
3. Existing topographic contours at two-foot maximum contour intervals;
4. Disposition of all Protected Native Plants keyed to the inventory list and showing the following designations:
a. Plants to be preserved-in-place;
b. Plants to be salvaged and transplanted on-site. To the extent possible, plants should be transplanted directly to their permanent location on-site;
c. Plants to be salvaged and removed from the site; and,
d. Plants to be destroyed.
5. The location of a temporary holding nursery to be used for salvaged plants.
B. Salvage and Mitigation Report that details:
1. A summary by genus and species that details the total numbers of all Protected Native Plants inventoried;
2. The calculations used to determine, by genus and species, the numbers of replacement plants, if any, to be provided as mitigation for Protected Native Plants transplanted on-site, removed from the site, or destroyed. For assistance in determining these calculations, see Exhibit I, Native Plant Preservation Worksheet. Any required landscape plans shall include a summary of plants required for mitigation and show their site location on the landscape plans. Any project that does not have required landscape plans shall have a landscape mitigation plan prepared to show the disposition of PIP, TOS, and required mitigation, as shown in the summary;
3. A schedule of salvage work to be accomplished including the timing and phasing of all tree boxing, tree and cacti salvage, and grading operations to take place on-site. See Section 2-11.5.0, Salvage and Mitigation Report;
4. A method and schedule for providing irrigation to salvaged plants in a temporary holding area. A method and schedule for providing irrigation to PIP, TOS, and mitigation plant materials. A method to provide irrigation to plants may include water harvesting for areas that are to remain natural; and,
5. A method of protection from intrusion and damage for the natural vegetation outside the graded area. Specify fencing materials and methods for controlling access to the designated NUOS areas (minimum fencing requirements as specified in Section 7.7.5.C.4, Fencing , of the UDC).
The requirements of the Environmental Resource Report shall be fulfilled in the assessment of the area(s) of natural resource to be set aside as undisturbed natural open space in lieu of performing a Native Plant Inventory, Analysis, and Plant Preservation and Salvage Plan. In addition, an aerial photograph, taken within a maximum of three years of submittal, is required at a minimum one inch equals 100 feet delineating the natural resource values for areas on the site and the area(s) to be set aside which will be platted and included in Covenants, Conditions, and Restrictions (CC&Rs) as NUOS. Any aerial photograph submitted, which was taken more than one year prior to submittal, shall be accompanied by a note on the plans stating that the site is substantially unchanged from the date of the aerial photograph.
These
provide a general list of the many aspects of salvage and transplanting which shall be addressed by a contractor. Current
and professional practices for the arid southwest should always be followed.
The basic plant protection and salvage philosophy is to preserve-in-place as much native vegetation as possible and to utilize salvaged vegetation for landscaping in those areas that are graded or otherwise disturbed.
A. Season of the year;
B. Feasibility of successful salvage/transplant;
C. Pruning requirements before and after transplant;
D. Appropriate box size for salvaged material based on trunk diameter;
E. Side boxing techniques and timing;
F. Plant removal techniques and transportation techniques;
G. Maintenance in temporary holding nursery;
H. Permanent location planting techniques; and,
I. Long-term maintenance.
A. Season of the year;
B. Orientation of the plant at the original site and in the holding nursery. All Saguaros and cacti should be stored and transplanted in the same north-south orientation as they naturally grow in the desert to avoid sunburn. All Saguaros and cacti should be premarked on the south side before moving. Any size Saguaro and cactus can be planted in full sun if it was originally growing in full sun; otherwise, provide artificial shade for a season, or plant under a tree or shrub. Cacti which were not in full sun must be protected by shade cloth or other shade in the nursery;
C. Excavation of adequate root system;
D. Protection of epidermis with burlap, foam rubber, or other padding;
E. Support of the plant during salvage and transport;
F. Final planting techniques;
G. Maintenance in temporary holding nursery; and,
H. Long-term maintenance.
Sources of additional information include, but are not limited to:
International Society of Arboriculture
National Forestry Association
Arizona-Sonoran Desert Museum
University of Arizona Cooperative Extension
Desert Botanical Garden, Phoenix
EXHIBIT I: NATIVE PLANT PRESERVATION WORKSHEET
This worksheet outlines the steps needed to calculate numbers for meeting the minimum
, preservation credits, and mitigation requirements of the Native Plant Preservation Ordinance utilizing the Plant Inventory Methodology. This Worksheet has been designed to assist in calculating the numbers of plants needed for the Salvage and Mitigation Report described in Section 2-11.5.0; however, this particular Worksheet is not required as part of the submittal but the calculations are required. Fill out a separate worksheet for every genus and species of plant.
Abbreviations and Definitions used: | PIP = plants preserved-in-place |
TOS = plants transplanted on-site | |
RFS = plants removed from site, damaged, or destroyed | |
Mitigation = additional plants to be planted on-site |
NAME OF PLANT (GENUS AND SPECIES)
STEP ONE Minimum Requirements for PIP or TOS
1. Number of plants of this genus and species inventoried and rated viable:
(1)
2. Multiply line 1 by the appropriate number below.
When the result includes a fractional amount, .1 - .4 is rounded down to the next
lower whole number, and .5 - .9 is rounded up to the next higher whole number.
Saguaros and Ironwood trees .5 x =
Other Plants .3 x =
Enter the minimum number of PIP and/or TOS required here: (2)
3. Enter total number of plants proposed to be PIP: (3)
4. If line 3 is less than line 2, subtract line 3 from line 2 and enter here: (4)
If line 3 is more than or equal to line 2, enter 0.
This is the minimum number of plants required to be TOS.
5. Enter total number of plants proposed to be TOS: (5)
6. Subtract line 4 from line 5 and enter here: (6)
This is the number of “excess” plants to be TOS.
7. Add line 3 and line 5 and enter here: (7)
This is the total number of plants that will remain on the site.
8. Subtract line 7 from line 1 and enter here: (8)
This is the total number of plants proposed for RFS.
STEP TWO Preservation Credits for Plants PIP
9. Multiply the number of plants PIP, based on plant size, by the appropriate multiplier below and enter here. Add the total, for each plant, and enter the total preservation credits here. (9)
Saguaros 6-10' high | 2 x _______ = ________ |
Saguaros >10' high | 3 x _______ = ________ |
Ironwood trees 6-12" in caliper | 2 x _______ = ________ |
Ironwood trees >12" in caliper | 3 x _______ = ________ |
Barrel Cacti >2' high | 2 x _______ = ________ |
Other Cacti >4" high | 2 x _______ = ________ |
Ocotillos >6' high | 2 x _______ = ________ |
Yuccas >2' high | 2 x _______ = ________ |
Other Trees 6-14" in caliper | 2 x _______ = ________ |
Other Trees >14" in caliper | 4 x _______ = ________ |
Shrubs >6' in height or diameter | 2 x _______ = ________ |
STEP THREE Mitigation Requirements for Plants TOS and RFS
10. Enter number of plants from line 4 here: (10)
This is the mitigation requirement for the required number of plants TOS.
11. Multiply the number of plants from line 8 by the appropriate multiplier below and enter result here: (11)
This is the mitigation requirement for plants RFS.
Saguaros and Ironwood trees: | 3 x ________ = ________ |
Other plants: | 2 x ________ = ________ |
12. Add line 10 and line 11 and enter total here: (12)
This is the total number of plants required for mitigation.
STEP FOUR Net Mitigation Requirements
This step balances the preservation credits and requirements.
13. Subtract line 6 from line 12 and enter here: (13)
This is mitigation requirement reduced by “excess” plants TOS.
14. Subtract line 9 from line 13 and enter here: (14)
This is mitigation requirement reduced by preservation credits.
15. If amount on line 14 is greater than 0, enter number here:
(15)
If amount on line 14 is 0 or less, enter 0 here (no mitigation is required for this plant).
This is the number of mitigation plants that must be provided.
16. Add line 7 and line 15 and enter number here: (16)
This is the total number of plants (of this genus and species) that will be on the site.
In accordance with Section 3.12.2, Protected Development Right, of the UDC, the following must be submitted upon application of a Protected Development Right:
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