2m X 2m square plots identified and marked 04. 10. 09 (a) Lowland unburned shrub areas Plot #1a Sagebrush at end of Vicee canyon along bike path at wnc




Дата канвертавання19.04.2016
Памер16.73 Kb.
Study Site Plots Survey of 06.02.09. Waterfall Fire Study by M. Sady

2m x 2m square plots identified and marked 04.10.09
(a) Lowland unburned shrub areas
Plot #1a Sagebrush at end of Vicee canyon along bike path at WNC

This unburned area is undisturbed, with mature tall sagebrush and bitterbrush, little to no visible grass of any kind or invasive weeds. 06.02.09

1a1 15 % ground covered by green vegetation, 85% bare

12 sagebrush, 0 tuft grass, 0 non-tuft cheatgrass, 0 forbs

1a2 10 % ground covered by green vegetation, 90% bare

6 sagebrush, 0 tuft grass, 0 non-tuft cheatgrass, 8 forbs (chryptanthia sp.)

1a3 5 % ground covered by green vegetation, 95 % bare

2 sagebrush, 5 snakeweed, 0 tuft grass, 0 non-tuft cheatgrass, 0 forbs

Plot #2a East of WNC Observatory to north of planetary walkway (subjected in past year to clearing firebreak activity by WNC staff)

This unburned area has been subjected to firebreak clearing, with mature tall sagebrush, bitterbrush, and desert peach, with little grass of any kind or invasive weed.06.02.09
2a1 5 % ground covered by green vegetation, 95 % bare

0 tuft grass, 0 non-tuft cheatgrass, some forbs (cryptantha sp.) and erodium

2a2 5 % ground covered by green vegetation, 95 % bare

1 flowering desert peach, 0 tuft grass, 0 non-tuft cheatgrass, 0 forbs)

2a3 10 % ground covered by green vegetation, 90 % bare

0 tuft grass, 0 non-tuft cheatgrass, some forbs cryptantha sp. and mentzelia sp. (located within firebreak)
(b) Lowland post-fire shrub areas
Plot #1b South of planetary walkway by Observatory on WNC

This area is sorely infested with erodium and cheatgrass in a dying and seeded condition. There are few visible tuft grasses within the three study plots or sagebrush, and only very few wildflowers.06.02.09

1b1 10 % ground covered by green/dying vegetation,90 % bare, ground cover is mostly with dying erodium and cheatgrass in seed.

1b2 10 % of ground covered by green/dying vegetation, 90 % bare, ground cover is mostly with dying erodium and cheatgrass in seed.

1b3 15 % ground covered by green/dying vegetation, 85 % bare, ground cover is mostly with dying erodium and cheatgrass in seed, 2 flowering desert peach, 7 tumble mustard.

(c) Lowland post-fire seeded areas
Plot #1c Drill-seeded south of Vicee Canyon along bike path at WNC

There is evidence of sheep grazing from sheep visit in late April. Forb species include penstemon, prickly daisy, mariposa lily, blue flax is flowering in the area. Success of tuft grass (crested wheat bunchgrass) drill seeding is present, though reduced in size presumably by sheep grazing. Some invasive weeds like cheatgrass (non-tuft grass) present, but very sparse and in seed dormant stage.06.02.09
1c1 20 % ground covered by green vegetation, 80% bare

41 tuft grass, 3 non-tuft cheatgrass, 0 forbs

1c2 20 % ground covered by green vegetation, 80% bare

40 tuft grass, 2 non-tuft cheatgrass, 0 forbs

1c3 30 % ground covered by green vegetation, 70% bare

48 tuft grass, 0 non-tuft grasses, 0 forbs

Plot #2c Ariel seeding west of Aspen Bldg at WNC

Forb species include prickly daisy, mariposa lily, browns peony, and blue lupine flowering in the area. Erodium sp., invasive forb, is infested throughout this area in the seeded to green stage. There is also an infestation of Bromus sp., cheatgrass, (non-tuft grass) in the dying seeded stage, some flowering tumble mustard.06.02.09
2c1 25 % ground covered by green vegetation, 75 % bare

4 tuft grass, 12 non-tuft dying cheatgrass, 1 very large brown's peony, 1 tuft grass, 1 sagebrush, 1 rabbitbrush.

2c2 10 % ground covered by green vegetation, 50% bare,

40% ground covered with dying erodium and cheatgrass, 1 tuft grass, 4 snakeweed, 11 small green emerging (unidentified) wildflowers (forbs).

2c3 10 % ground covered by green vegetation, 30% bare, 60 % ground covered with dying erodium and cheatgrass, 3 snakeweed, 1 tuft grass, 1 mariposa lily.

Plot #3c Drill-seeded West of Observatory at WNC subjected to sheep grazing (monitored for last three years by A Bollinger)

Crested wheatgrass (tuft grass) predominates this drill-seeded and grazed area, with lupine, astralagus, death camas among the forbs, but also a good deal of dead and seeded cheatgrass and erodium. Signs of sheep grazing, droppings, and reduced size of crested wheatgrass compared with April visit to area.06.02.09
3c1 30 % ground covered by green vegetation, 70% bare

33 tuft grass, dying erodium and cheat grass seeded non-tuft grasses, 2 tumble mustard forbs

3c2 20 % ground covered by green vegetation, 60% bare, 20% litter (dead Russian thistle, 5 tuft grass, dying and seeded cheatgrass non-tuft grasses, tumble mustard and erodium forbs.
3c3 20 % ground covered by green vegetation, 80% bare

29 tuft grass, dying cheat grass seeded non-tuft grasses, 0 erodium, and 1 lupine forbs.

(e) Upland unburned forest understory
Plot #1e NDF-Lakeview Park trailhead to north side

This area is unburned and cool forest understory with typical eastern Sierra Nevada Ponderosa (Jeffrey) pine mixed with mananita, sage, and rabbitbrush, bitterbrush community, and grasses.06.02.09
1e1 20% ground covered by green vegetation in form of single grasses, 20% bare, 60% litter (pine needles & debris), 1mature Jeffrey pine & 2 small (<1m) pines, 1 sagebrush, 1 rabbitbrush, unidentified small forb.

1e2 20% ground covered by green vegetation in form of single grasses, 20% bare, 60% litter (pine needles & debris), 1mature Jeffrey pine, 1 rabbitbrush, and a few single grasses.


1e3 10% ground covered by green vegetation in form of single grasses, 30% bare, 60% litter (pine needles & debris), 1 mature Jeffrey pine, 1 sagebrush, some cheatgrass green state is here also.

(g) Upland post-fire seeded and planted understory

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Plot #1g NDF-Lakeview Park trailhead to south side

Burned understory and rehabilitated forest area with downed burned pine trees, logged, replanted pine trees and seeding from helicopter. Some visible regrowth on manzanita is present, but not as developed an understory as the unburned neighbor plots. Tree replanting success is only 1 small tree in the enclosures out of 6 planted. 06.02.09
1g1 10 % covered by green vegetation, 30% bare, 60 % litter (pine debris & tree stump), 3 tuft grasses, some erodium and cheat grass visible in green state.

1g2 10 % covered by green vegetation, 30% bare, 60 % litter (pine debris & tree stump), 3 tuft grasses, some erodium and cheat grass visible in green state, 1 manzanita, 1 bitterbrush, tiny unidentified forb.

1g3 10 % covered by green vegetation, 30% bare, 60 % litter (pine debris & tree stump & dead planted tree in enclosure), some single blue grasses, some erodium and cheatgrass visible in green state and dying and seeded.


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