text
stringlengths 0
6.44k
|
---|
reach an agreement with fire crews at ENP to allow them to burn county properties have stalled. |
The EEL program should investigate the use of private contractors to implement an effective fire |
management program (see also Part I, Section 5.2.1). Several companies in Florida provide this |
service and their use in Miami-Dade County should be encouraged. Costs of using private |
contractors may be much higher than using FDOF, but the absence of fires will result in |
increasing hardwood removal costs, decreasing habitat quality, and increasing threat of |
damaging wildfires. |
4.6.4 Alternatives to Prescribed Burning |
If the application of prescribed fire is absolutely impossible, there are several alternatives that are |
available, although less desirable. These options include grazing, herbicide application, and |
mechanical treatment. Grazing, such as by goats, has the disadvantage of introducing trampling |
effects, nutrients from feces, and possible spread of exotic pest plant seeds. Both herbicide |
application and mechanical treatments have the disadvantage of requiring that dead woody |
material be removed from the site following treatment to limit the amount of decomposing |
vegetation that would create organic soils. Even with physical removal after treatment, organic |
matter from all plants on the site will eventually accumulate, leaving an organic soil, and thereby |
reducing diversity of native herbs and potentially introducing invasive species. Physical removal |
after treatment can also cause disturbances. In addition, none of these techniques replicate a |
fire’s ability to return nutrients to the soil for short periods of time, a process that is critical to |
many pine rockland plant species. These alternative techniques, as opposed to prescribed |
burning, require a significantly greater labor commitment from personnel and come at a |
significant ecological cost. |
4.7 Management after Tropical Cyclones |
As discussed in 2.6.2 and 3.6.2, tropical cyclones, including tropical storms and hurricanes, can |
break or topple pine trees, make pine trees susceptible to pest insect outbreaks, and defoliate or |
damage understory hardwoods. Storms can also blow manmade debris into pine rocklands, |
including large items such as shipping containers and boats, which can damage vegetation and |
soils. In addition to these direct effects, post-storm impacts from people can also be considerable, |
including dumping, habitat clearing, and establishment of campgrounds or temporary homes. |
Management Policy |
Post-storm evaluations shall be conducted at all pine rockland EEL sites to determine the |
extent and severity of damage to vegetation, wildlife, and structures. After inspection, an |
action plan shall be developed to mitigate any impacts caused by the event. |
EEL Program, Management Plan, Part II – Pine Rockland (DRAFT) _____________________________________________________________________________________________________________________ |
Page 40 |
Establishment of post storm security should be a top priority, including temporary erection of |
fences, gates, and signs. If existing signs are destroyed, inexpensive, temporary “no dumping” |
signs should be installed liberally around property perimeters. Sites should be inspected regularly |
for dumping and trespassing. |
Maintenance of a sparse pine canopy, as discussed in Section 4.3.1, will limit outbreaks of pest |
insects, including Ips beetles, following storms. If infestations do begin, trees can be protected by |
the application of Onyx, a bark-adhering formulation of bifenthrin that is applied to bark. |
Infested trees should be cut down and sprayed with Onyx. If other chemicals are available for |
this use, they can be tried as well. |
4.8 Hydrological Restoration |
Pine rocklands are upland communities but have been stressed by a lowered water table, for |
example, in recovery from wind damage or fires. Though it is unlikely that any small scale, site |
specific project, could occur to remedy this problem, large scale restoration would be very |
beneficial to stressed pine rocklands. While such large scale restoration projects are not feasible |
for the EEL program to accomplish alone, EEL would support and partner with any existing or |
proposed restoration plans that would attempt to elevate water tables closer to historic levels. |
Water levels that re-hydrate adjacent wetlands would be very advantageous for the adjacent pine |
rocklands. |
4.9 Soil Management |
Pine rockland soils are naturally nutrient poor. However, successional changes lead to changes in |
the soil. In the absence of fire, hardwoods invade pine rockland habitat, resulting in inhibition of |
pine regeneration. As hardwoods invade, accumulation of organic matter in the soils and |
increased shading results in an increase in soil moisture, which inhibits fires that maintain the |
pine rockland community. |
Because pine rockland soils are naturally nutrient poor, proper ecosystem management |
(particularly burning) will maintain the low fertility of pine rockland soils. Accumulation of |
organic matter increase the nutrient levels and favor the invasion of pine rockland habitat by |
hardwoods. Winter backing burns can be used to reduce the levels of organic matter in the soil of |
those sites where the accumulation is already higher than desirable. |
Direct use of fertilizers and other nutrient applications are forbidden. Inputs from off-site nutrient |
sources that migrate into pine rocklands should be prevented and controlled in case they are |
Management Policy |
Soil on pine rockland EEL sites shall be managed by prescribed burning. Direct use of |
fertilizers and other nutrient applications are forbidden on any pine rockland EEL site. |
Management Policy |
The EEL program will support any large scale restoration project which would be |
beneficial to the hydrological restoration of pine rockland EEL sites. |
EEL Program, Management Plan, Part II – Pine Rockland (DRAFT) _____________________________________________________________________________________________________________________ |
Page 41 |
occurring. Source reduction of nutrients might be needed to reduce edge-of-field and leaching |
from neighboring agricultural areas (see Part I, Section 5.2.5). |
4.10 Cultural Resources |
Cultural resources on pine rockland EEL sites should be managed in accordance with the |
management policy for all Miami-Dade County EEL preserves. Please refer to Part I, Section 3.3 |
of this management plan for details about management of cultural resources on EEL sites. |
4.11 Pollution Control |
Generally, the goal of source reduction to control pollutants applies to all pine rockland EEL |
sites in the same manner as it does for all other EEL sites. Please refer to Sections 5.2.5 and 5.4.3 |
in Part I of this management plan for management and contingency management of pollutants in |
and around EEL preserves. |
4.12 Landscaping Considerations |
Landscaping adjacent to pine rocklands should be done to minimize the threat of invasive exotic |
plants and also native plant species that could become maintenance problems in the ecosystem. |
No plant species listed by the FLEPPC as Category I or II (Appendix C) should be planted on |
EEL sites. Exotic plant species that can naturalize, even those not listed by FLEPPC, should not |
be planted on EEL sites. Lists of exotic species that naturalize in South Florida can be found |
online at www.regionalconservation.org in the Floristic Inventory of South Florida database, or |
at www.plantatlas.usf.edu/, the Atlas of Florida Vascular Plants. Cultivated trees that are |
FLEPPC listed or that naturalize should be removed from EEL sites where they are already |
present. |
Native hardwood species that may invade pine rocklands should not be used, including live oak, |
wild tamarind, gumbo limbo, and others. Where already cultivated on EEL sites, their removal |
should be considered. |
Management Policy |
All landscaping that occurs adjacent to pine rockland EEL sites should avoid exotic |
Subsets and Splits
No saved queries yet
Save your SQL queries to embed, download, and access them later. Queries will appear here once saved.