Thormanby Islands Sensitive Ecosystem Mapping
· Gambier Island · Maps · 2011
Original Trust document
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28,426 characters of machine-extracted text. Extraction is automatic and can be wrong; the original governs.
Topics: Marine & foreshore · Climate & environment — our classification, not the Trust's.
Extracted text (beginning)
656 312 300 674 319 279 581 215 260 248 355 228 256 349 264 271 353 549 480 282 270 226 623 274 333 304 231 317 250 331 483 335 246 363 315 285 330 259 277 438 230 357 2001 314 261 292 342 577 284 325 242 323 362 348 322 240 350 320 296 287 588 561 276 734 278 352 334 291 735 2002 311 552 229 222 258 657 217 269 346 211 316 578 237 328 268 281 212 295 251 621 307 575 235 298 305 223 265 358 266 540 286 213 219 345 332 2023 313 255 337 224 288 522 356 216 586 344 339 533 221 241 675 214 318 338 244 686 324 511 658 546 225 273 280 275 538 306 576 612 530 669 227 678 684 632 665 310 218 536 220 685 243 245 262 301 681 548 309 327 302 516 272 326 485 435 727 670 4 64 000m. E 4 64 000m. E 66 66 4 68 000m. E 4 68 000m. E 54 68 000m. N 54 70 54 72 000m. N Sensitive and Terrestrial Ecosystems Label Salt Spring Island Saturna Island Mayne Island Galiano Island Vancouver Island Vancouver Keats Islands Bowyer and Passage Islands Sensitive Ecosystem Mapping Airphoto - 2006 The example label above indicates the SEM and TEM atri but es mapped for polygon 7838. The polygon occurs in the Coast Western Hemlock Eastern Very Dry Maritme var i ant ; 60% of the polygon is WD:mx - Woodland: mixed conifer and broadleaf (Primary Ecosystem), map code AM - Arbutus - Hairy manzanita, structural stage 5. The remaining 40% of the polygon is WD:co - Woodland: conifer dominated, map code DC - Douglas-fir - Western hemlock – Cladina (Secondary and Tertar y Ecosystems). Of this 40%, 20% is structural stage 4 and 20% is structural stage 5. SE Subclass Biogeoclimatic Unit * Indicates a field sample % of polygon (as decile) SE Class Polygon Number Mapcode Structural Stage Secondary Ecosystem Tertiary Ecosystem Primary Ecosystem 7838* CWHxm1 6WD:mx AM 5 2WD:co DC 4 2WD:co DC 5 Structural Stage & Biogeoclimatic UnitsTerrestrial Ecosystem Map Codes and Site Unit Names Sensitive ecosystems are fragile and/or rare, or are ecologically important because of the diversity of species they support. Sensitive Ecosystems Importance: Subclasses: Rare Ecosystems Usually conifer-dominated, occasionally deciduous, dry to moist forest types, structural stage 6, generally >80yrs. Mature Forest (MF): Other important ecosystems have high biodiversity values. co(conifer dominated) - greater than 75% coniferous species mx(mixed conifer and deciduous) - a minimum of 25% cover of either group is included in the total tree cover Definition: Within 20 years, many Mature Forests that were logged early this century will become Older Forests. The biodiversity values of Mature Forests generally become higher with age. This means it will be able to sustain more and larger species of plants and animals. Future older forests Mature Forest stands provide connections between other natural areas that promote the movement and dispersal of many forest-dwelling species across the landscape. L
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