Template: Disturbance and Management
Description: Disturbance and Management
Variables with their units and descriptions are found below. If a group is specified in the Group-Required column, the variable is required within that group. Variables without a group and marked required are required for every group. Some variables are marked required / optional with a prefix (e.g., “Optional-a”, “Required-b”). For these variables, only one of the variables with the same prefix should be reported. The Multiple column indicates whether multiple entries of the group are allowed at a tower site.
DM Variables
| Variable | Group-Required | Multiple | Units | Description |
|---|---|---|---|---|
| DM_AGRICULTURE | 1-Required | M | LIST(DM_AGRICULTURE) | Crop management such as harvest or crop residue management |
| DM_ENCROACH | 2-Required | M | LIST(DM_ENCROACH) | Encroachment such as invasive species or woody enroachment |
| DM_EXT_WEATHER | 3-Required | M | LIST(DM_EXT_WEATHER) | Extreme weather such as hurricane, frost, or drought |
| DM_FERT_M | 4-Required | M | LIST(DM_FERT_M) | Mineral fertilization including liming |
| DM_FERT_O | 5-Required | M | LIST(DM_FERT_O) | Organic fertilization |
| DM_FIRE | 6-Required | M | LIST(DM_FIRE) | Fires including underburn |
| DM_FORESTRY | 7-Required | M | LIST(DM_FORESTRY) | Forestry management such as clearcutting or thinning |
| DM_GRAZE | 8-Required | M | LIST(DM_GRAZE) | Grazing |
| DM_INS_PATH | 9-Required | M | LIST(DM_INS_PATH) | Substantial insect, pathogen attack, or disease event |
| DM_PESTICIDE | 10-Required | M | LIST(DM_PESTICIDE) | Application of pesticide, insecticide, or fungicide |
| DM_PLANTING | 11-Required | M | LIST(DM_PLANTING) | Planting of live plants or seeds |
| DM_TILL | 12-Required | M | LIST(DM_TILL) | Tillage or site preparation including scarification and plowing |
| DM_WATER | 13-Required | M | LIST(DM_WATER) | Water management such as irrigation, flooding or drainage |
| DM_GENERAL | 14-Required | M | LIST(DM_GENERAL) | General disturbance or management event not covered by other disturbance or management type |
| DM_SURF | 15-Required | M | % | Percentage of the footprint area affected by the event |
| DM_SURF_MEAS_UNC | 16-Required | M | % | Percentage of the footprint area affected by the event measurement uncertainty |
| DM_DATE | Required-a | M | YYYYMMDDHHMM | Date of site disturbance Please report the date at the precision known. Allowed reporting precision are YYYY, YYYYMMDD, and YYYYMMDDHHMM. |
| DM_DATE_START | Required-a | M | YYYYMMDDHHMM | Start date of site disturbance Please report the start date at the precision known. Allowed reporting precision are YYYY, YYYYMMDD, and YYYYMMDDHHMM. |
| DM_DATE_END | Optional | M | YYYYMMDDHHMM | End date of site disturbance Please report the end date at the precision known. Use only if DM_DATE_START is reported. Allowed reporting precision are YYYY, YYYYMMDD, and YYYYMMDDHHMM. |
| DM_DATE_UNC | Optional | M | days | Uncertainty in the date of site disturbance |
| DM_COMMENT | Optional | M | free text | Site disturbance comments |
DM_AGRICULTURE Options (back to top)
| Option | Definition |
|---|---|
| Harvest | |
| Crop residue management | |
| Other |
(back to top)
DM_ENCROACH Options (back to top)
| Option | Definition |
|---|---|
| Woody encroachment | |
| Invasive species | |
| Urban encroachment | |
| Other |
(back to top)
DM_EXT_WEATHER Options (back to top)
| Option | Definition |
|---|---|
| Drought | |
| Flood | |
| Freeze | |
| Heatwave | |
| Hurricane | |
| Storm | |
| Tornado | |
| Other |
(back to top)
DM_FERT_M Options (back to top)
| Option | Definition |
|---|---|
| K | |
| N | |
| P | |
| Lime | |
| Other |
(back to top)
DM_FERT_O Options (back to top)
| Option | Definition |
|---|---|
| Liquid manure | |
| Solid manure | |
| Compost | |
| Poultry | |
| Other |
(back to top)
DM_FIRE Options (back to top)
| Option | Definition |
|---|---|
| Accidental human induced burn | |
| Accidental human induced underburn | |
| Nature induced burn | |
| Nature induced underburn | |
| Prescribed human induced burn | |
| Prescribed human induced underburn | |
| Other |
(back to top)
DM_FORESTRY Options (back to top)
| Option | Definition |
|---|---|
| Clearcutting | |
| Fallen wood removal | |
| Thinning/pruning | |
| Other |
(back to top)
DM_GRAZE Options (back to top)
| Option | Definition |
|---|---|
| Cattle | |
| Goat | |
| Sheep | |
| Other |
(back to top)
DM_INS_PATH Options (back to top)
| Option | Definition |
|---|---|
| Disease | |
| Insect | |
| Pathogen | |
| Other |
(back to top)
DM_PESTICIDE Options (back to top)
| Option | Definition |
|---|---|
| Bactericide | |
| Fungicide | |
| Herbicide | |
| Insecticide | |
| Other |
(back to top)
DM_PLANTING Options (back to top)
| Option | Definition |
|---|---|
| Planting live trees | |
| Planting live shrubs | |
| Planting live crops | |
| Planting live grasses | |
| Planting other live plants | |
| Sowing tree seeds | |
| Sowing shrub trees | |
| Sowing crop seeds | |
| Sowing grass seeds | |
| Sowing other seeds | |
| Other |
(back to top)
DM_TILL Options (back to top)
| Option | Definition |
|---|---|
| Conventional | |
| Ridge till | |
| Scarification | |
| Stripe till | |
| Conservation | |
| Other |
(back to top)
DM_WATER Options (back to top)
| Option | Definition |
|---|---|
| Drainage | |
| Irrigation | |
| Human induced flooding | |
| Other |
(back to top)
DM_GENERAL Options (back to top)
| Option | Definition |
|---|---|
| Undisturbed | |
| Other |
(back to top)