Sampling Vegetation Attributes - Natural Resources Conservation ...

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48" 1 1/8" 15 13 11 9 7 5 3 1 1. 2. 3. 4. 5. Robel Pole Illustration 26 METHODS—Visual Obstruction—Robel Pole 157" Pole is 1.125 inches in diameter and 48 inches long. Pole is painted with alternating 1-inch bands of flat white and gray colors, starting with white on the bottom. Alternating 1-inch bands can be extended to the top of the pole if needed. A single 157-inch (4m) cord is attached to the pole at a height of 39 inches (1m) to standardize the distance and height at which readings are taken. Narrow black numbers corresponding to the number of bands are painted on the white bands. For example, the bottom white band is "1," the next white band is "3," and so on. A spike is attached to the bottom of the pole so that it can be pushed into the ground, allowing one examiner to make the readings. The spike can be removed if not needed. 39" 129
130 METHODS—Other N. Other Methods 1. Weight Estimate and Ocular Reconnaissance Methods Both of these methods were commonly used to determine forage production prior to the implementation of the Ecological Site Inventory Method. They both involved determining the production on all species, which could then be used to calculate species composition and total production. Although they are no longer widely used techniques, written description for completing each can be found in BLM’s Rangeland Inventory and Monitoring Supplemental Studies, Technical Reference 4400-5. 2. Community Structure Analysis Method This technique is used by very few field offices. It will be moved to BLM’s Technical Reference 4400-5 in a future revision. 3. Photo Plot Method This technique requires many quadrats for each study site in order to provide statistically reliable data. Since this technique is very time consuming, it is no longer used in most field offices. It will be moved to BLM’s Technical Reference 4400-5 in a future revision.
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SAMPLING VEGETATION ATTRIBUTES INTE
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TABLE OF CONTENTS SAMPLING VEGETATI
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TABLE OF CONTENTS TABLE OF CONTENTS
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I. PREFACE PREFACE The intent of th
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2 INTRODUCTION values when individu
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4 INTRODUCTION represent the “pul
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6 INTRODUCTION G. Coordination Moni
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8 STUDY DESIGN AND ANALYSIS A. Plan
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10 STUDY DESIGN AND ANALYSIS Macrop
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12 STUDY DESIGN AND ANALYSIS Becaus
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14 STUDY DESIGN AND ANALYSIS d From
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16 STUDY DESIGN AND ANALYSIS b Cove
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18 STUDY DESIGN AND ANALYSIS sideoa
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4 3.5 3 2.5 20 5 STUDY DESIGN AND A
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22 STUDY DESIGN AND ANALYSIS C. Oth
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24 ATTRIBUTES Frequency is the numb
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26 ATTRIBUTES 2. Advantages and Lim
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28 ATTRIBUTES b Standing crop and p
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30 ATTRIBUTES
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32 METHODS—Photographs c Angle ir
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METHODS—Photographs Hinge Rod sta
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METHODS—Photographs angle iron st
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38 METHODS—Frequency • One tran
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40 METHODS—Frequency transected,
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42 METHODS—Frequency (3) Total fr
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Page of Frequency 44 Study Number D
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METHODS—Frequency The frame is ma
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50 METHODS—Dry Weight Rank C. Dry
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52 METHODS—Dry Weight Rank After
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D. Daubenmire Method METHODS—Daub
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METHODS—Daubenmire b Ten Cover Cl
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Page of Daubenmire Study Number Dat
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50 cm Six Cover Class Frame 20 cm R
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METHODS—Line Intercept b Pilot St
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METHODS—Line Intercept Hanley, Th
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70 METHODS—Step Point F. Step-Poi
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72 METHODS—Step Point the boot an
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74 METHODS—Step Point measures AN
Page 85 and 86: 78 METHODS—Point Intercept G. Poi
Page 87 and 88: 80 METHODS—Point Intercept 8. Sam
Page 89 and 90: 82 METHODS—Point Intercept b Tran
Page 91 and 92: METHODS—Point Intercept Examples
Page 93 and 94: 86 METHODS—Cover Board H. Cover B
Page 95 and 96: 88 METHODS—Cover Board g Study Do
Page 98: Page of Cover Board Method Profile
Page 101 and 102: 94 METHODS—Density I. Density Met
Page 103 and 104: 96 METHODS—Density (often very mu
Page 105 and 106: 98 METHODS—Density able to make s
Page 107: Page of Density Study Number Date E
Page 110 and 111: • Herbage Yield Tables for Trees
Page 112 and 113: METHODS—Double Weight Sampling (4
Page 114 and 115: METHODS—Double Weight Sampling d
Page 116: Page of Production Study Number Dat
Page 119 and 120: 112 METHODS—Harvest K. Harvest Me
Page 121 and 122: 114 METHODS—Harvest 7. Taking Pho
Page 123 and 124: 116 METHODS—Comparative Yield L.
Page 125 and 126: 118 METHODS—Comparative Yield (1)
Page 127 and 128: 120 METHODS—Comparative Yield Tab
Page 130 and 131: M. Visual Obstruction Method - Robe
Page 132 and 133: METHODS—Visual Obstruction—Robe
Page 134: Sampling Interval Study Location 1
Page 139 and 140: 132 GLOSSARY browse: (1) the part o
Page 141 and 142: 134 GLOSSARY grazable woodland: for
Page 143 and 144: 136 GLOSSARY sample: a set of sampl
Page 145 and 146: 138 GLOSSARY
Page 147 and 148: 140 REFERENCES Crocker, R.L. and N.
Page 149 and 150: 142 REFERENCES Hironaka, M. 1985. F
Page 151 and 152: 144 REFERENCES Nie, Norman H., C. H
Page 153 and 154: 146 REFERENCES Society for Range Ma
Page 155 and 156: 148 REFERENCES Whitman, W.C. and E.
Page 157: Location 150 APPENDIX A Study Locat
Page 160 and 161: APPENDIX B APPENDIX B—STUDY AND P
Page 162 and 163: APPENDIX B 3. Label 3 A placard on
Page 164 and 165: APPENDIX C Photo Identification Lab
Page 167 and 168: 160 APPENDIX C
Page 169 and 170: 162 APPENDIX D The formula for usin
Page 171: Form Approved OMB No. 0704-0188 Pub
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