Criterion 4 Conservation of Soil and Water Resources Soils –Kathy O’Neill, Mike Amacher, Ken Stolte Water –Dave Chojnacky, Ken Stolte

Conservation and maintenance of soil and water resources 18Area and percent of forest land with significant soil erosion. 19Area and percent of forest land managed primarily for protective functions. e.g. watersheds, flood protection, avalanche protection, riparian zones. 20Percent of stream kilometers in forested catchments in which stream flow and timing has significantly deviated from the historic range of variation. 21Area and percent of forest land with significantly diminished soil organic matter and/or changes in other soil chemical properties. 22Area and percent of forest land with significant compaction or change in soil physical properties resulting from human activities. 23Percent of water bodies in forest areas (e.g. stream kilometers, lake hectares) with significant variance of biological diversity from the historic range of variability. 24Percent of water bodies in forest areas (e.g. stream kilometers, lake hectares) with significant variation from the historic range of variability in pH, dissolved oxygen, levels of chemicals (electrical conductivity), sedimentation or temperature change. 25Area and percent of forest land experiencing an accumulation of persistent toxic substances.

18. Area and percent of forest land with significant soil erosion

Erosion (tons/acre)

WEPP Predicted Erosion (tons acre -1 ) for Three Disturbance Regimes

Table 25.4: Soil adsorption and persistence characteristics for pesticides commonly applied in forest management. Common Name 1 Pesticide Movement RatingSoil Half-life Water Solubility Sorption CoefficientPersistence (days)(mg/L)(K oc ) 2,4 D (acid)Moderate Nonpersistent ChlordaneExtremely Low ,000Persistent ChlorothalonilLow Nonpersistent ChlorpyrifosVery Low Moderately persistent ChlorsulfuronHigh Moderately persistent ClopyralidVery High40300,0006Moderately persistent DiazinonLow Moderately persistent DicambaVery High14400,0002Nonpersistent GlyphosateExtremely Low47900,00024,000Moderately persistent HexazinoneVery High9033,00054Moderately persistent Imazapyr (acid)High9011,000100Moderately persistent Methyl bromideVery High5513,40022Moderately persistent Metsulfuron-methylHigh Moderately persistent OxyfluorfenExtremely Low ,000Moderately persistent PicloramVery High90200,00016Moderately persistent PropiconazoleModerate Moderately persistent Sulfometuron-methylModerate207078Nonpersistent TebuthiuronVery High Persistent Triclopyr amine saltVery High462,100,00020Moderately persistent Source: P.A. Vogue, E.A. Kerle, and J.J. Jenkins. The Oregon State University Extension Pesticide Properties Database 1 Mention of trade names does not constitute endorsement by the U.S. Department of Agriculture.

pH Thresholds: South & East

pH: county-scale

Summer Temp ( 0 C): county-scale

pH: HUC-6 scale

NAWQA Results for Forested Counties

18Area and percent of forest land with significant soil erosion. 19Area and percent of forest land managed primarily for protective functions. e.g. watersheds, flood protection, avalanche protection, riparian zones. 20Percent of stream kilometers in forested catchments in which stream flow and timing has significantly deviated from the historic range of variation. 21Area and percent of forest land with significantly diminished soil organic matter and/or changes in other soil chemical properties. 22Area and percent of forest land with significant compaction or change in soil physical properties resulting from human activities. 23Percent of water bodies in forest areas (e.g. stream kilometers, lake hectares) with significant variance of biological diversity from the historic range of variability. 24Percent of water bodies in forest areas (e.g. stream kilometers, lake hectares) with significant variation from the historic range of variability in pH, dissolved oxygen, levels of chemicals (electrical conductivity), sedimentation or temperature change. 25Area and percent of forest land experiencing an accumulation of persistent toxic substances. Conservation and maintenance of soil and water resources -Suggested Modifications--

IndCurrent WordingSuggested Changes 18Area and percent of forest land with significant soil erosion. 19Area and percent of forest land managed primarily for protective functions. e.g. watersheds, flood protection, avalanche protection, riparian zones. Area and percent of forest land managed for protective functions. e.g. watersheds, flood protection, avalanche protection, riparian zones. Report as primary or secondeary management use. 20Percent of stream kilometers in forested catchments in which stream flow and timing has significantly deviated from the historic range of variation. 21Area and percent of forest land with significantly diminished soil organic matter and/or changes in other soil chemical properties. 22Area and percent of forest land with significant compaction or change in soil physical properties resulting from human activities. 23Percent of water bodies in forest areas (e.g. stream kilometers, lake hectares) with significant variance of biological diversity from the historic range of variability. 24Percent of water bodies in forest areas (e.g. stream kilometers, lake hectares) with significant variation from the historic range of variability in pH, dissolved oxygen, levels of chemicals (electrical conductivity), sedimentation or temperature change. 25Area and percent of forest land experiencing an accumulation of persistent toxic substances.