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National Resources Inventory 1 The National Resources Inventory (NRI) Is a statistical survey, based on well- established scientific principles Designed.

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Presentation on theme: "National Resources Inventory 1 The National Resources Inventory (NRI) Is a statistical survey, based on well- established scientific principles Designed."— Presentation transcript:

1 National Resources Inventory 1 The National Resources Inventory (NRI) Is a statistical survey, based on well- established scientific principles Designed & implemented to assess conditions & trends of soil, water, & related resources on non-Federal rural lands Conducted for USDA, by NRCS, in cooperation with the Iowa State University Statistical Laboratory

2 National Resources Inventory 2 The National Resources Inventory (NRI) Captures data on land cover & use, soils, soil erosion, wetlands, habitat diversity, selected conservation practices, & related resource attributes -- at 800,000 scientifically selected sample sites Purpose: To provide support for –Agricultural & Environmental Policy Development and Program Implementation

3 National Resources Inventory 3 National Sample Density National Sample Density

4 National Resources Inventory 4 Primary Sample Unit (PSU)

5 National Resources Inventory 5 CONTINUOUS NRI NRI 5-Year Cycles – 1982,1987, 1992 & 1997 In 2000 we converted from 5-year inventory to a continuous annual inventory The continuous annual inventory design: - 73,000 PSUs/year by remote sensing -14,000 PSUs by onsite methods.

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8 8 Grazing Lands Nonfederal Grazing Lands – 45% of all nonfederal lands (*) Rangelands – > 40% of all lands in Nation (#) * Excludes Alaska & Federal lands # Includes Alaska & Federal lands

9 National Resources Inventory 9 National Academy of Sciences ISSUES: Disagreement over status of rangeland, over analysis and assessment techniques, over extent of problems, etc. Recommendations to DOI and USDA included implement a coordinated & statistically valid national inventory to periodically evaluate health of Federal and nonfederal rangelands NRI is statistically valid for nonfederal range but proper data are not being collected

10 National Resources Inventory 10 PlansPlans Establishment of Analysis Team – concern re Continuity and utility of data (STC) –Make sure we can monitor and look at trends over time –Make sure that we can and do utilize all data Agency implementation of rangeland field protocols –Many pilot studies; inter-agency development Federal government – National Cooperative Rangeland Study – DOI, USDA, SRM, others Conservation Effects Assessment Project (CEAP)

11 National Resources Inventory 11 NRI Rangeland Assessment - Objectives In addition to the usual NRI objectives as stated in policy, use of the NRI (rangeland) field protocols will provide data that: –can be used to further range science –provide more knowledge about interactions among environmental, soil, and plant variables, and management practices

12 National Resources Inventory NRI Rangeland Field Study-2003

13 National Resources Inventory 13 Scientific Requirements – for NRI Rangeland Data Continuous NRI –To be conducted on the basis of rigorous, scientifically developed sample survey (e.g., statistical) principles and protocols [Policy] –Features prescribed mixture of data collection types [on-site; PI; satellite] & full QA program –Timely, credible, useful data Move from qualitative/subjective measures to quantitative/objective [National Academy]

14 National Resources Inventory 14 Sample Design for Field & Special Resource Studies Use photo-interpretation sample –First phase in multi-phase design –Use historical information to design sample –Borrow strength from photo-interp data in estimation Often requires extra stage in sampling –Reduce study costs by selecting geographic clusters –Example: select counties within states first, then PSUs

15 National Resources Inventory 15 NRI Rangeland Data Collection, NRCS 2003 Data Collection –Preceded by a number of pilots in association with personnel from BLM/FS/USGS. –Part of 3-year effort –The 2003 data can not be used by themselves to obtain statistical estimates 2004 and 2005 data collection On-site data collection –Standard facet of NRI; Monitoring Continue to work with other agencies and to pursue remote techniques

16 National Resources Inventory 2003 Sample/Non-Federal 2003- Pilot Year 600 Primary sampling units Across 110 counties in 17 states 2004 and 2005 2400 Primary sampling units/each year 19 States

17 National Resources Inventory Rangeland Inventory Oracle Data base (Source for historical data and storage for new submitted data) Front end machines Modem bank or Network access to mobile device PSU and associated historical to mobile computing device New data uploaded from mobile computing device All via modem or network connection

18 National Resources Inventory 18 Hand-held pen-based computer –controlled input formats & navigation –edit checking –communication w/ central server & other peripherals Central warehouse –sample data base, process metadata –web pages: survey progress, interactive training, data views, instructions Computer-Assisted Survey Information Collection

19 National Resources Inventory Paper worksheet with embedded rules, logic and communication capabilities. Key to high quality data CASI- (Computer Assisted Survey Instrument)

20 National Resources Inventory Apple Newton Message Pads –Model 2000/2100 Modem or Network connection* CASI (Range02.pkg) Rockwell PLGR (GPS) Cables, backpack Some specialized equipment (cover pole, soil stability test kit, tapes etc.) Equipment/SoftwareEquipment/Software

21 National Resources Inventory PSU Data/General Entry for data collection team members and job titles. PSU ID information displayed for information.

22 National Resources Inventory Locating the Point, Land Cover and Transect Ends Locating the Point, Land Cover and Transect Ends Navigation to point location using GPS Entry of appropriate land cover/use opens up rest of data entry screens. Transect ends were also captured using GPS – not likely in 2004.

23 National Resources Inventory Intersect at the NRI sample point Two 150 ft transects oriented NW- SE and NE – SW. North, south, east and west quadrants are identified for some types of data collection. Plot Layout and Design

24 National Resources Inventory Landscape and soil data elements. Choice lists for most NASIS SSAID and MUSYM brought forward from 2001 NRI. Soil Component name and ID optional depending upon make-up of data collection team. Landscape and Soils

25 National Resources Inventory Choice lists for all data elements. Historic 1992 Ecological site brought forward for information Existing list of current Ecological site numbers and names also provided as choice list. Ecological Site Information

26 National Resources Inventory Rangeland Health Rangeland health protocol (same as in BLM/NRCS publication) Two screens Summary information provided on set II screen.

27 National Resources Inventory Noxious Weed and Invasive/Alien Plants Sub-list of noxious and invasive or alien plants is created from the two provided plant data bases Record species by quadrant along with an estimate of degree of invasion (from choice list). On board data bases include: NRCS plant data base National noxious weed data base Plants can be sorted by common or scientific name. Plant symbol is displayed as the code.

28 National Resources Inventory Disturbance Indicators Record presence or absence of a number of past or present disturbances. Two screens.

29 National Resources Inventory Conservation Practices (from NRCS technical guide) Record presence or absence of a number of conservation practices Three screens

30 National Resources Inventory Conservation Treatment Needs This is retained from the 1992 NRI. Likely will change to resource concerns as listed in NRCS technical guides in 2004.

31 National Resources Inventory Soil Stability Indictor A soil aggregate stability test which provides information on the degree of soil structural development and erosion resistance. This test measures the stability of the soil when exposed to rapid wetting. Involves some special equipment which is provided to data collection teams. Ratings 0- 6 with 0 as unstable and 6 as 75-100 % of ped remains after 5 dips.

32 National Resources Inventory Rangeland Inventory

33 National Resources Inventory Line Point Transects for Cover Composition Rapid, accurate method for quantifying species composition, ground cover, litter, rocks and biotic crusts. Completed at 3 foot intervals along transects. Sub-list of plants can be created by the user from the large National plants database. Top, basal, and NS layer must be entered. Up to 6 canopy species could be entered prior to the basal layer.

34 National Resources Inventory Line intercept Transects for Basal and Canopy Cover Provides an estimate of basal and canopy gaps along both transects 1 foot or larger. Large gaps between plants are important indicators of potential wind and water erosion and weed invasion. Enter beginning an end of gap to the nearest 0.1 of a foot.

35 National Resources Inventory Gap Examples Gap Examples Basal gapsCanopy gaps

36 National Resources Inventory Cover, Density and Height (Cover pole) Provides an estimate of cover density along both transects at pre-determined intervals (left column). Visual obstruction readings are made at 10 foot intervals along each transect.. Right most column for estimate of canopy height. Observations made with the cover pole will allow users to reduce complex vegetative conditions found in nature to simplified structures with which to conduct analyses. This will include estimates of both vertical (<5 ft.) and horizontal structural diversity on rangelands

37 National Resources Inventory 37 Cover Pole Transect line B Viewing pole Y X A 39.4 offset

38 National Resources Inventory Species Composition by Weight (Biomass) Record all plant species and associated weight to the nearest gram. Enter information of yield reconstruction including dry weight percentage, percent ungrazed, percent of total growth, and any needed climate adjustment. Similarity index is also calculated.

39 National Resources Inventory Species Composition by Weight (Biomass)

40 National Resources Inventory 40 Criterion 1- Soil Based Criterion 1: Conservation and Maintenance of Soil and Water Resources of Rangelands Land Cover /UseLandscape/ soilsEcological SiteRangeland HealthNoxious Weed –Invasive./Alien PlantsDisturbanceIndicatorsConservationPracticesConservationTreatment NeedsSoil Stability TestLine Point- Covercomposition.Line Inter. Basal andCanopy CoverCover, Density andHeightSpecies Compositionby Weight Soil-based Indicators 1. Area and percent of rangeland soils with significantly diminished organic matter and/or high carbon:nitrogen (C:N) ratio. 22 2. Area and extent of rangelands with changes in soil aggregate stability. 11 3. Assessment of microbial activity in rangeland soils. 4. Area and percent of rangeland with significant change in extent of bare ground. 2221 5. Area and percent of rangeland with accelerated soil erosion by wind or water. 22221

41 National Resources Inventory Criterion 1-Water Based Criterion 1: Conservation and Maintenance of Soil and Water Resources of Rangelands Land Cover /UseLandscape/ soilsEcological SiteRangeland HealthNoxious Weed –Invasive./Alien PlantsDisturbanceIndicatorsConservationPracticesConservationTreatment NeedsSoil Stability TestLine Point- Covercomposition.Line Inter. Basal andCanopy CoverCover, Density andHeightSpecies Compositionby Weight Water-based Indicators 6. Percent of water bodies in rangeland areas with significant changes in natural biotic assemblage composition. 7. Percent of surface water on rangeland areas with significant deterioration of their chemical, physical, and biological properties from acceptable levels. 2 8. Changes in ground water systems. 22 9. Changes in the frequency and duration of surface no-flow periods in rangeland streams. 22 10.Percent of stream length in rangeland catchments in which stream channel geometry significantly deviates from the natural channel geometry.

42 National Resources Inventory Criterion 2- (Indicators 11-15) Criterion 2: Conservation and Maintenance of Plant and Animal Resources on Rangelands Land Cover /UseLandscape/ soilsEcological SiteRangeland HealthNoxious Weed –Invasive./Alien PlantsDisturbanceIndicatorsConservationPracticesConservationTreatment NeedsSoil Stability TestLine Point- Covercomposition.Line Inter. Basal andCanopy CoverCover, Density andHeightSpecie s Composition by Weight 11. Extent of land area in rangeland. 1 12.Rangeland area by plant community. 211 13.Number and extent of wetlands. 1 14.Fragmentation of rangeland and rangeland plant communities. 1 15. Density of roads and human structures. 1

43 National Resources Inventory 43 Criterion 2 (Indicators 16-20) 16. Integrity in natural fire regimes on rangeland. 17. Extent and condition of riparian systems. 18. Area of infestation and presence/absence of invasive and other nonnative plant species of concern. 1 19.Number and distribution of species and communities of concern. 111 20.Population status and geographic range of rangeland-dependent species 1 Criterion 2: Conservation and Maintenance of Plant and Animal Resources on Rangelands Land Cover /UseLandscape/ soilsEcological SiteRangeland HealthNoxious Weed –Invasive./Alien PlantsDisturbanceIndicatorsConservationPracticesConservationTreatment NeedsSoil Stability TestLine Point- Covercomposition.Line Inter. Basal andCanopy CoverCover, Density andHeightSpecie s Composition by Weight

44 National Resources Inventory Criterion 3 Criterion 3: Maintenance of Productive Capacity on Rangelands Land Cover /UseLandscape/ soilsEcological SiteRangeland HealthNoxious Weed –Invasive./Alien PlantsDisturbanceIndicatorsConservationPracticesConservationTreatment NeedsSoil Stability TestLine Point- Covercomposition.Line Inter. Basal andCanopy CoverCover, Density andHeightSpecies Compositionby Weight 21. Rangeland aboveground biomass. 222 22. Rangeland annual productivity 21 23. Percent of available rangeland grazed by livestock. 24. Number of domestic livestock on rangeland. 25. Presence and density of wildlife functional groups on rangeland. 2 26. Annual removal of native hay and non- forage plant materials, landscaping materials, edible and medicinal plants, and wood products.


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