7dc5f5e0844561b9a930242ec6be4a6d forest_a2017v8n3p55.pdf a1d6332226e5f2f3a6ae8f9b34a6183be5420110 forest_a2017v8n3p55.pdf 11f6617818a4c07088203b32d3ccc0db554c7e8f644bc803308975f62eb30896 forest_a2017v8n3p55.pdf Title: Contrasting Effects of Fire Severity on the Regeneration of Pinus halepensis Mill. and Resprouter Species in Recently Thinned Thickets Subject: Many studies have outlined the benefits for growth and reproduction resulting from thinning extremely crowded young forests regenerating after stand replacing wildfires (“thickets”). However, scarce information is available on how thinning may influence fire severity and vegetation regeneration in case a new fire occurs. We investigated the relationship between thinning and fire severity in P. halepensis thickets, and the effects on the establishment of pine seedlings and resprouting vigour in resprouter species the year after the fire. Our results show a positive relationship between forest basal area and fire severity, and thus reserved pines in thinned stands suffered less fire damage than those in un-thinned sites (respectively, 2.02 0.13 vs. 2.93 0.15 in a scale from 0 to 4). Ultimately, differences in fire severity influenced post-fire regeneration. Resprouting vigour varied depending on the species and the size of individuals but it was consistently higher in thinned stands. Concerning P. halepensis, the proportion of cones surviving the fire decreased with fire severity. However, this could not compensate the much lower pine density in thinned stands and thus the overall seed crop was higher in un-thinned areas. Establishment of pine seedlings was negatively affected by the slope and positively driven by the number of cones and thus it was higher in un-thinned than in thinned stands (respectively, 2581 649 vs. 898 325 seedlingsha-1). Thinning decreases fire intensity, and thus it may facilitate fire suppression tasks, but retaining a higher density of pines would be necessary to ensure P. halepensis regeneration after a new fire event. Keywords: fire severity; Mediterranean forests; Pinus halepensis; post-fire regeneration; seed bank; selective thinning Author: Ruth García-Jiménez, Marina Palmero-Iniesta and Josep Maria Espelta Creator: LaTeX with hyperref package Producer: pdfTeX-1.40.15 CreationDate: Thu Mar 2 19:32:47 2017 ModDate: Tue May 30 13:39:16 2017 Tagged: no UserProperties: no Suspects: no Form: none JavaScript: no Pages: 13 Encrypted: no Page size: 595.276 x 841.89 pts (A4) Page rot: 0 File size: 3782192 bytes Optimized: yes PDF version: 1.5 name type encoding emb sub uni object ID ------------------------------------ ----------------- ---------------- --- --- --- --------- WVHOTH+URWPalladioL-Ital Type 1 Custom yes yes no 636 0 OLFRZR+URWPalladioL-Bold Type 1 Custom yes yes no 639 0 RIAVCT+URWPalladioL-BoldItal Type 1 Custom yes yes no 642 0 GOVXOC+URWPalladioL-Roma Type 1 Custom yes yes no 645 0 UBZRXD+CMSY10 Type 1 Builtin yes yes no 648 0 YSPQJI+VnURWPalladioL-Bold Type 1 Custom yes yes no 652 0 AGHGPP+VnURWPalladioL Type 1 Custom yes yes no 655 0 IKGGFJ+PalatinoLinotype-Italic CID TrueType Identity-H yes yes yes 189 0 IKGHLJ+TimesNewRomanPSMT TrueType WinAnsi yes yes no 191 0 IKGGIJ+PalatinoLinotype-Italic TrueType WinAnsi yes yes no 193 0 IKGGJJ+PalatinoLinotype-Roman CID TrueType Identity-H yes yes yes 196 0 IKGGKK+PalatinoLinotype-Bold CID TrueType Identity-H yes yes yes 199 0 IKGGLL+PalatinoLinotype-Bold TrueType WinAnsi yes yes no 201 0 IKGGLM+PalatinoLinotype-Roman TrueType WinAnsi yes yes no 203 0 IKGGFJ+PalatinoLinotype-Italic CID TrueType Identity-H yes yes yes 208 0 IKGHLJ+TimesNewRomanPSMT TrueType WinAnsi yes yes no 210 0 IKGGIJ+PalatinoLinotype-Italic TrueType WinAnsi yes yes no 212 0 IKGGJJ+PalatinoLinotype-Roman CID TrueType Identity-H yes yes yes 215 0 IKGGKK+PalatinoLinotype-Bold CID TrueType Identity-H yes yes yes 218 0 IKGGLL+PalatinoLinotype-Bold TrueType WinAnsi yes yes no 220 0 IKGGLM+PalatinoLinotype-Roman TrueType WinAnsi yes yes no 222 0 IKGGFJ+PalatinoLinotype-Italic CID TrueType Identity-H yes yes yes 232 0 IKGHLJ+TimesNewRomanPSMT TrueType WinAnsi yes yes no 234 0 IKGGIJ+PalatinoLinotype-Italic TrueType WinAnsi yes yes no 236 0 IKGGJJ+PalatinoLinotype-Roman CID TrueType Identity-H yes yes yes 239 0 IKGGKK+PalatinoLinotype-Bold CID TrueType Identity-H yes yes yes 242 0 IKGGLL+PalatinoLinotype-Bold TrueType WinAnsi yes yes no 244 0 IKGGLM+PalatinoLinotype-Roman TrueType WinAnsi yes yes no 246 0 IKGGFJ+PalatinoLinotype-Italic CID TrueType Identity-H yes yes yes 260 0 IKGHLJ+TimesNewRomanPSMT TrueType WinAnsi yes yes no 262 0 IKHBJK+TimesNewRomanPS-BoldMT TrueType WinAnsi yes yes no 264 0 IKGGIJ+PalatinoLinotype-Italic TrueType WinAnsi yes yes no 266 0 IKGGJJ+PalatinoLinotype-Roman CID TrueType Identity-H yes yes yes 269 0 IKGGKK+PalatinoLinotype-Bold CID TrueType Identity-H yes yes yes 272 0 IKGGLL+PalatinoLinotype-Bold TrueType WinAnsi yes yes no 274 0 IKGGLM+PalatinoLinotype-Roman TrueType WinAnsi yes yes no 276 0 IKGGFJ+PalatinoLinotype-Italic CID TrueType Identity-H yes yes yes 288 0 IKGHLJ+TimesNewRomanPSMT TrueType WinAnsi yes yes no 290 0 IKGGIJ+PalatinoLinotype-Italic TrueType WinAnsi yes yes no 292 0 IKGGJJ+PalatinoLinotype-Roman CID TrueType Identity-H yes yes yes 295 0 IKGGKK+PalatinoLinotype-Bold CID TrueType Identity-H yes yes yes 298 0 IKGGLL+PalatinoLinotype-Bold TrueType WinAnsi yes yes no 300 0 IKGGLM+PalatinoLinotype-Roman TrueType WinAnsi yes yes no 302 0 ZMPETQ+CMBSY10 Type 1 Builtin yes yes no 435 0 IKGGFJ+PalatinoLinotype-Italic CID TrueType Identity-H yes yes yes 368 0 IKGHLJ+TimesNewRomanPSMT TrueType WinAnsi yes yes no 370 0 IKHKNA+ArialMT TrueType WinAnsi yes yes no 372 0 IKGGIJ+PalatinoLinotype-Italic TrueType WinAnsi yes yes no 374 0 IKGGJJ+PalatinoLinotype-Roman CID TrueType Identity-H yes yes yes 377 0 IKGGKK+PalatinoLinotype-Bold CID TrueType Identity-H yes yes yes 380 0 IKGGLL+PalatinoLinotype-Bold TrueType WinAnsi yes yes no 382 0 IKGGLM+PalatinoLinotype-Roman TrueType WinAnsi yes yes no 384 0 YZECQD+VnURWPalladioL-Italic Type 1 Custom yes yes no 436 0 Jhove (Rel. 1.6, 2011-01-04) Date: 2017-05-31 03:00:07 CEST RepresentationInformation: forest_a2017v8n3p55.pdf ReportingModule: BYTESTREAM, Rel. 1.3 (2007-04-10) LastModified: 2017-05-30 13:39:06 CEST Size: 3782192 Format: bytestream Status: Well-Formed and valid SignatureMatches: PDF-hul MIMEtype: application/octet-stream Checksum: d7ea5f7f Type: CRC32 Checksum: 7dc5f5e0844561b9a930242ec6be4a6d Type: MD5 Checksum: a1d6332226e5f2f3a6ae8f9b34a6183be5420110 Type: SHA-1