limitations to post-fire seedling establishment
DESCRIPTION
Limitations to post-fire seedling establishment. Jeremy James and Tony Svejcar. Background. Seeding following fire is critical tool for soil stabilization and preventing weed spread Tens of millions of dollars are spent on seeding each year - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: Limitations to post-fire seedling establishment](https://reader030.vdocument.in/reader030/viewer/2022033106/568164da550346895dd72a4b/html5/thumbnails/1.jpg)
Limitations to post-fire seedling establishment
Jeremy James and Tony Svejcar
![Page 2: Limitations to post-fire seedling establishment](https://reader030.vdocument.in/reader030/viewer/2022033106/568164da550346895dd72a4b/html5/thumbnails/2.jpg)
• Seeding following fire is critical tool for soil stabilization and preventing weed spread
• Tens of millions of dollars are spent on seeding each year
• Seed success rates are extremely low on arid rangeland
• Reasons for low success rates are poorly understood
Background
![Page 3: Limitations to post-fire seedling establishment](https://reader030.vdocument.in/reader030/viewer/2022033106/568164da550346895dd72a4b/html5/thumbnails/3.jpg)
• Following four fires, plots were seeded with a rangeland drill or by hand, and
• Some plots also were weeded and watered
Project outline
![Page 4: Limitations to post-fire seedling establishment](https://reader030.vdocument.in/reader030/viewer/2022033106/568164da550346895dd72a4b/html5/thumbnails/4.jpg)
Four fire complexes in southeastern Oregon
Egley
Bartlett Roundtop
Butte
![Page 5: Limitations to post-fire seedling establishment](https://reader030.vdocument.in/reader030/viewer/2022033106/568164da550346895dd72a4b/html5/thumbnails/5.jpg)
Native grasses and forbs recovered following all four fires
![Page 6: Limitations to post-fire seedling establishment](https://reader030.vdocument.in/reader030/viewer/2022033106/568164da550346895dd72a4b/html5/thumbnails/6.jpg)
Establishment was 3-fold higher in plots where seeds were planted by hand
![Page 7: Limitations to post-fire seedling establishment](https://reader030.vdocument.in/reader030/viewer/2022033106/568164da550346895dd72a4b/html5/thumbnails/7.jpg)
Weeding or watering plots did not increase establishment
0
3
6
9
12
Seed
ling
dens
ity (
plan
ts /
10 ft
2 )
![Page 8: Limitations to post-fire seedling establishment](https://reader030.vdocument.in/reader030/viewer/2022033106/568164da550346895dd72a4b/html5/thumbnails/8.jpg)
• Need techniques to determine if post-fire reseeding is really necessary
• We cannot assume more precipitation or fewer weeds will improve reseeding success
• Seeding technology remains a major limitation to our ability to restore rangeland
Conclusion
![Page 9: Limitations to post-fire seedling establishment](https://reader030.vdocument.in/reader030/viewer/2022033106/568164da550346895dd72a4b/html5/thumbnails/9.jpg)
• This project is part of a larger effort by ARS Burns, OR to improve seedling establishment in rangeland restoration efforts
Project information
For more information contactJeremy James
541-573-8911 (jeremy.james @oregonstate.edu)Tony Svejcar
541-573-8901 (tony.svejcar@ oregonstate.edu)