1. National User’s Group Meeting Houston, Texas John Vissage U. S. Forest Service Northern Research Station Saint Paul, MN jvissage@fs.fed.us

2.  Any annual inventory after the first one  Same plot footprint at the same place  Account for trees measured on plot that was forested at prior visit Isn’t ‘remeasured’ from a periodic survey

3.  If it can go wrong it will go wrong  If it can’t go wrong it will go wrong

4. Data that should not change, changes. Tree species Reserved Class Site Productivity Class Data that should change, changes in a strange way. DBH/DIA shrinks Total height gets shorter Rotten cull decreases Ownership

5. On-line tools FIDO and EVALIDator Produce estimates of growth, removals, and mortality EVALIDator produces growth, removals, and mortality estimates by current and prior attributes FIA Data Mart Allows users to download FIADB tables

6. Previous land use Total Timberland Reserved Forestland Other forestlandNonforest Non- Census water Census water Total721,272,463643,744,632-358,79473,654,8803,291,488222,669 Timberland721,272,463643,744,632-358,79473,654,8803,291,488222,669 Reserved Forestland------- Other forestland------- Nonforest------- Non-Census water------- Census water------- Hazardous------- Removals by previous land use and current land use, East Texas, 2008 (From EVALIDator)

8. Stand origin Previous stand origin TotalNatural stands Clear evidence of artificial regeneration Other Total 928,848,135572,038,362349,671,7727,138,002 Natural stands 487,279,535453,855,61328,585,3984,838,524 Clear evidence of artificial regeneration 366,799,10744,870,631319,628,9982,299,477 Other 74,769,49373,312,1181,457,375- Estimate type Net growth of growing-stock on timberland (cuft per year) Statecd/EVALID(s): RSCD=33 EVALID=480803 TEXAS(EAST) 2008 Page variable=None Row variable=Previous stand origin Column variable=Stand origin Estimate:

11. Now What?

12.  PREV_PLOT_CN (previous plot sequence number)  PREV_SBP_CN  PREV_SIT_CN  PREV_STATUS_CD  PREV_TRE_CN  PREVCOND  PREVDIA

13.  CN (sequence number)  STATECD  SUBP  SUBPTYP  PLT_CN  CONDID  PREV_PLT_CN  PREVCOND  SUBPTYP_PROP_CHNG (Subplot condition change matrix)

15. Past Condition Status Past stand – size class Current condition status Current stand –size class EstimateCount Plot area 1213607046.3149733169.2647 1112274577.30133777.0061 1311155524.004419141.947475 111552143.187455512.2335 Portion of change matrix table, Minnesota 2008

16. Past stand size class Current stand size classTotal SawtimberPoletimberSeedling - sapling Nonstocked Other Sawtimber 3,578,440 274,577 389,032 52,143 82,805 4,376,998 Poletimber 807,157 4,697,077 607,046 39,338 84,252 6,234,870 Seedling – Sapling 155,524 668,194 4,311,141 55,871 100,285 5,291,015 Nonstocked 15,422 14,809 93,565 56,522 47,601 227,919 Other 276,398 295,435 616,656 69,185 1,257,674 Total 4,832,940 5,950,093 6,017,441 273,059 314,944 17,388,476 Forest area change by past and current stand size class, Minnesota 2008

17. Latest remeasurement data on web Annual-to-annual remeasurement Periodic-to-annual accounting Annual Inventory initial installation Periodic data

19. --Example 4.15 Estimate area change (acres) by condition status and stand size at two points in time, East Texas SELECT c_past.cond_status_cd past_cond_status_cd, c_past.stdszcd past_stdszcd, c.cond_status_cd current_status_cd, c.stdszcd current_stdszcd, SUM(pop_stratum.expns * CMX.subptyp_prop_chng / 4 * decode(c.prop_basis, 'MACR', pop_stratum.adj_factor_macr, pop_stratum.adj_factor_subp) -- expression from the ref_pop_attribute table ) estimate, count(*) COUNT, SUM(CMX.subptyp_prop_chng / 4) PLOT_AREA FROM cond c, plot p, pop_plot_stratum_assgn, pop_stratum, pop_estn_unit, pop_eval, pop_eval_typ pet, pop_eval_grp, cond C_PAST, subp_cond_chng_mtrx CMX WHERE p.cn = c.plt_cn and pet.eval_typ = 'EXPGROW' AND (c.cond_status_cd = 1 or c_past.cond_status_cd = 1) AND pop_plot_stratum_assgn.plt_cn = p.cn AND pop_plot_stratum_assgn.stratum_cn = pop_stratum.cn AND pop_estn_unit.cn = pop_stratum.estn_unit_cn AND pop_eval.cn = pop_estn_unit.eval_cn AND pop_eval.cn = pet.eval_cn AND pet.eval_grp_cn = pop_eval_grp.cn AND pop_eval_grp.eval_grp = 272008 -- the desired evaluation group must be specified. AND p.prev_plt_cn = C_PAST.plt_cn AND CMX.PREV_PLT_CN = C_PAST.PLT_CN AND CMX.prevcond = C_PAST.condid AND CMX.condid = c.condid AND ((CMX.SUBPTYP = 3 and c.prop_basis = 'MACR') or (CMX.SUBPTYP = 1 and c.prop_basis = 'SUBP')) group by c_past.cond_status_cd, c_past.stdszcd, c.cond_status_cd, c.stdszcd