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Home My WebLink About*Other - Development Services�,aaa- �� wl �v�n; S -V LS -4, ar—--- - '`� ty . 7II Fer Chelan Cquntg oBCinkS L�ke Labeft PARCEL TotalAcres ZONECODE t 1 181906000 1�. 15 a U r nt '"hounty Rd 50 N AG _Q -�4;1 as ngton 3 1868 Parcels owned by Grant 0� 2 3 County rt 5 180789000 10' 4 Rd444E .25 AG 7'F3ew W4 Q&O ,DUTCH 7 1818-24000 AG HENRY D R A W,.�.-' 6 B am 8 7 z 5 JIV 9 1 0 �A � 0 .." 808180,05 13.015 AG C N Rd 36 NE �9 10 11 180634000 1 AG 12 0 V\ z 0 13 162105001 21.29 AG 0 C gam'mm� aki nX r MAV H 114W_ g. H I G H I L L 15 171184000 AG R I D SA�.G E 8 R U S sG E F L A T 13 ES 16- 17 1815 03001 6.57 IRR' 17 4" 7 8- M 05 01' 15 M2 -2 1 19 0801.58000 5414 SQ FT (CA C) RRES ;!- w20'' 1% AO 7A 23 Z. 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See grantcountyw'a.map's.arcgis.com Sources: W'S'DOT, WADNR, WOTC, Esd, Grant County E Disclaimer. The information provided by Grant County is provided 'as Wand for reference only. Grant County makes every effort to produce and publish the most current and accurate information possible. No warranties, expressed or implied, are provided for the data provided, its use, or its interpretation. In no event shall Grant County become liable to users of this data, or any other party, for any lo'ss or damages, consequential or otherwise, including but not limited to time, money, or goodwill, arising from the use, misuse, operation or modification of the data. In using the data, users further agree to indemnify, defend, and hold harmless Grant County for any and all liability of any nature arising out of or resulting from the lack of accuracy, currency or completeness, or correctness of 'the data, the use or misuse of the data. In addition, the information on this server, or site, is subject to change without notice and does not represent a commitment on the part of Grant County in the future. Date: 2/1/2021 UNITED STATES DEPARTMENT OF AGRICULTURE NATURAL RESOURCES CONSERVATION SERVICE PROVISIONAL ECOLOGICAL SITE A PROVISIONAL ECOLOGICAL SITE is a conceptual grouping of soil map unit components within a Major Land Resource Area (MLRA) based on the similarities in response to management. Although there may be wide variability in the productivity of the soils grouped into a Provisional Site, the soil vegetation interactions as expressed in the State and Transition Model are similar and the management actions required to achieve objectives, whether maintaining the existing ecological state or managing for an alternative state, are similar. Provisional Sites are likely to be refined into the precise group during the process of meeting the APPROVED ECOLOGICAL SITE DESCRIPTION criteria. This PROVISIONAL ECOLOGICAL SITE has been developed to meet the standards established in the National Ecological Site Handbook, The information associated with this ecological site does not meet the Approved Ecological Site Description Standard, but it has been through a Quality Control and Quality Assurance pro cesses to assure consistency and completeness. Further investigations, reviews and correlations are necessary before it becomes an Approved Ecological Site Description. ECOLOGICAL DYNAMICS: Vegetation Dynamics: Loamy produces about 600-1200 pounds/acre of biomass annually. Wyoming big sagebrush and bluebunch wheatgrass are at the core of the Loamy ecological site and warrant a degree of understanding. Wyoming sagebrush in a long-lived, multi -branched, evergreen shrub. Size varies from 3 feet to 5 feet depending on soil and site conditions. Wyoming big sagebrush has a significant rooting system, composed of a two-part rooting structure with a primary deep taproot, and a shallow extensive network of finer roots that spread laterally. This rooting system allows Wyoming big sagebrush to survive in the hottest and driest portions of the sagebrush range by tapping into groundwater sources deep into the soil profile itself. This also allows Wyoming big sagebrush to be more competitive with bunchgrasses when the landscape positions and/or soils are less ideal for grass species to maintain the competitive advantage. Bluebunch wheatgass is a long-lived, mid-sized bunchgrass with an awned or awnless seedhead arranged is a spike. Bluebunch provides a crucial and extensive network of roots to the upper portions (up to 48" deep in soils with no root -restrictive horizons) of the soil profile. These roots create a massive underground source to stabilize the soils, provide organic matter and nutrients inputs, and help maintain soil pore space for water infiltration and water retention in the soil profile. The extensive rooting system of mid-sized bunchgrasses leave very little soil niche space available for invasion by other species. This drought resistant root can compete with, and suppress, the spread of exotic weeds. The stability and resiliency of the reference communities is directly linked to the health and vigor of bluebunch wheatgrass. Refer to page 8 for more details about bluebunch physiology. Research has found that the community remains resistant to medusahead invasion if the site maintains at least 0.8 mid-sized bunchgrass plant/sq. ft. (K. Davies, 2008). It is bluebunch that holds the system together. If we lose the bluebunch the ecosystem crashes or unravels. The natural disturbance regime for grassland communities is periodic lightning -caused fires. The ire return intervals (FRI) listed in research for sagebrush steppe communities is quite variable. Ponderosa pine communities have the shortest FRI of about 10-20 years (Miller). The FRI increases as one moves to wetter forested sites or to dries shrub steppe communities. Given the uncertainties and opinions of reviewers, a mean of 75 years and a range of 50-100 was chosen for Wyoming sagebrush communities (Rapid Assessment Model). Some fires are spotty or do not burn hot enough to fully remove the sagebrush. Fires with light severity will remove less sagebrush and open smaller patches for grass and forb recovery, whereas the more severe fires will remove almost all the sagebrush and leave vast areas open to return to bunchgrass dominance. This is how the patchy distribution occurs. Rabbitbrush and horsebrush are sprouting shrubs and may increase following fire. The effect of fire on the community depends upon the severity of the burn. With a light to moderate fire there can be a mosaic of burned and unburned patches of sagebrush. Sagebrush can return to pre -burn conditions quickly. Bunchgrasses thrive as the fire does not get into the crown. With adequate soil moisture Idaho fescue and bluebunch wheatgrass can make tremendous growth the year after the fire. Other than impacting the sagebrush layer, the community is not affected. A severe fire puts stress on the entire community. The sagebrush layer is completely removed. Spots or patches with heavy sagebrush are sterilized by the ire and must be seeded to prevent invasive species (annual grasses, tumble mustard) from totally occupying the site. Bluebunch wheatgrass and basin wildrye will have weak vigor for a few years but generally survive. Needle and thread is one native species that can increase via new seedlings. The longer the site goes without fire and the more grazing pressure added, the more sagebrush cover increases, and the more Bunchgrasses decline. As sagebrush cover increases bluebunch wheatgrass cover declines but individual plants may persist underneath the sagebrush. And, the dense sagebrush community phase is more vulnerable to outside pressures. Invasive species take advantage of available soil rooting spaces. The once extensive grass roots are largely absent. Soils are no longer receiving the organic inputs, and there is less surface cover by grass litter. Both water infiltration into the soil, and water percolation through the soil, are affected, leaving open soil space that is drier and more vulnerable to wind and water erosion, and invasion by undesirable species. Once these undesirable species have colonized, the site is at high risk of crossing a threshold if a disturbance such as fire were to occur. Grazing is another common disturbance that occurs to this ecological site. Grazing pressure can be defined as heavy grazing intensity, or frequent grazing during reproductive growth, or season - long grazing (the same plant grazed more than once). As grazing pressure increases the plant community unravels in stages: 1. Bluebunch wheatgrass declines while Sandberg bluegrass, needle and thread and sagebrush increase 2. As Bluebunch wheatgrass continues to decline, invasive species such as cheatgrass and knapweed colonize the site 3. With further decline the site can become a sagebrush-cheatgrass community Managing sagebrush steppe to improve the vigor and health of native bunchgrasses begins with an understanding of grass physiology. New growth each year begins from basal buds. Bluebunch wheatgrass plants rely principally on tillering, rather than establishment of new plants through natural reseeding. ]During seed formation, the g r ' win points become elevated and are gp vulnerable to damage or removal.