Abstract
Fire is a significant influencing factor that affects ecosystem pattern and process. In an experiment of man-made grassland burning, the responses to fire of plant abundance, aboveground biomass, species richness, dominant species height were studied. The results are as follows. In the initial two post-fire years (2008—2009), the species richness of herbaceous synusia in burned site decreased, and the plant abundance was higher than that in the unburned sites, but the difference wasn't remarkable (P0.05). In the first post-fire year (2008), the aboveground biomass in burned site was significantly higher than that in the unburned sites (P0.05); In 2009 the difference wasn't remarkable (P0.05). In other words, fire can only increase the productivity of desert ecosystem in the first post-fire year, has no effect in the second year. The height growth of three dominant species Allium polyrhizum, Cleistogennes songorica and Artemisia capillaris was restrained in the first post-fire year in burned site, and showed a slight more increase than that in check site in the second year. Whereas, another dominant species Cornulaca alaschanica appeared opposite response to fire, which was probably related to different growth characteristics of desert plants.
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Claims 8
Claim · model-written summary
Fire decreased herbaceous species richness during the first two post-fire years.
Verbatim
e0“In the initial two post-fire years (2008—2009), the species richness of herbaceous synusia in burned site decreased, and the plant abundance was higher than that in the unburned sites, but the difference wasn't remarkable (P0.05).”
Claim · model-written summary
Plant abundance was higher at burned than unburned sites in the first two years, without a remarkable difference.
Verbatim
e0“In the initial two post-fire years (2008—2009), the species richness of herbaceous synusia in burned site decreased, and the plant abundance was higher than that in the unburned sites, but the difference wasn't remarkable (P0.05).”
Claim · model-written summary
Aboveground biomass was significantly higher in burned sites in 2008.
Verbatim
e0“In the first post-fire year (2008), the aboveground biomass in burned site was significantly higher than that in the unburned sites (P0.05); In 2009 the difference wasn't remarkable (P0.05).”
t0“Desert Herb Synusia”
Claim · model-written summary
Aboveground biomass did not differ remarkably between burned and unburned sites in 2009.
Verbatim
e0“In the first post-fire year (2008), the aboveground biomass in burned site was significantly higher than that in the unburned sites (P0.05); In 2009 the difference wasn't remarkable (P0.05).”
t0“Desert Herb Synusia”
Claim · model-written summary
Allium polyrhizum height growth was restrained in the first year after burning and increased slightly more than the check site in the second year.
Verbatim
e0“The height growth of three dominant species Allium polyrhizum, Cleistogennes songorica and Artemisia capillaris was restrained in the first post-fire year in burned site, and showed a slight more increase than that in check site in the second year.”
Claim · model-written summary
Cleistogennes songorica height growth was restrained in the first year after burning and increased slightly more than the check site in the second year.
Verbatim
e0“The height growth of three dominant species Allium polyrhizum, Cleistogennes songorica and Artemisia capillaris was restrained in the first post-fire year in burned site, and showed a slight more increase than that in check site in the second year.”
Claim · model-written summary
Artemisia capillaris height growth was restrained in the first year after burning and increased slightly more than the check site in the second year.
- Taxon
- Artemisia capillaris
Artemisia capillarise0 - Treatment
- burned sitee0
- Outcome
- height growthe0
- Direction
- restrainede0
- Qualifier
- first post-fire yeare0
- Comparator
- check sitee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The height growth of three dominant species Allium polyrhizum, Cleistogennes songorica and Artemisia capillaris was restrained in the first post-fire year in burned site, and showed a slight more increase than that in check site in the second year.”
Claim · model-written summary
Cornulaca alaschanica showed the opposite height response to fire from the other dominant species.
- Taxon
- Cornulaca alaschanicaCornulaca alaschanicae0
- Treatment
- firee0
- Outcome
- opposite responsee0
Not reportedComparatorDirection
Verbatim
e0“Whereas, another dominant species Cornulaca alaschanica appeared opposite response to fire, which was probably related to different growth characteristics of desert plants.”