Abstract
Fruit yield,total sugar,and calorific value were chosen to study energy potential of Polygonum viviparum,in Hongyuan,Ruoergai and Songpan.The results showed that,1) Fruit yield and total sugar,differed significantly in 7 plots(P0.001),with levels in plot 3 significantly higher than in the other samples(fresh weight 117.222 g/m2,dry weight 46.226 g/m2).The highest total sugar was in plot 5(54.16%),and the average was 49.73%.The calorific value of fruits in plots 2,3 and 7 did not show regularity: the average was 15.85 MJ/kg.2) Correlation analysis showed that fruit dry weight had a significant negative correlation with altitude,but a significant(P0.05) positive correlation with coverage of P.viviparum and aboveground litter storage,while the impact of various factors on total sugar was not significant.3) Statistics for the grassland areas showed the fruit annual yield in Hongyuan is from 17 387.81 to 105 674.34 t(fresh weight),in Ruoergai it is from 15 172.04 to 92 208.01 t(fresh weight).The annual total sugar in Hongyuan is from 8 646.96 to 52 551.85 t,in Ruoergai it is from 7 545.06 to 45 855.04 t,P.viviparum is expected to become a potential wild carbohydrate energy plant.
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Claims 10
Claim · model-written summary
Fruit yield differed significantly among seven plots; plot 3 was higher.
- Taxon
- Polygonum viviparum
Bistorta viviparat0 - Outcome
- Fruit yielde0
- Direction
- highere0
- Value
- 117.222 g/m2e0
- Setting
- plot 3e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fruit yield and total sugar,differed significantly in 7 plots(P0.001),with levels in plot 3 significantly higher than in the other samples(fresh weight 117.222 g/m2,dry weight 46.226 g/m2)”
t0“Polygonum viviparum”
Claim · model-written summary
Total sugar differed significantly among plots and was highest in plot 5.
- Taxon
- Polygonum viviparumBistorta viviparat0
- Outcome
- total sugare0
- Direction
- higheste0
- Value
- 54.16%e0
- Setting
- plot 5e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Polygonum viviparum”
e0“The highest total sugar was in plot 5(54.16%),and the average was 49.73%”
e1“total sugar,differed significantly in 7 plots(P0.001)”
Claim · model-written summary
Average fruit calorific value was 15.85 MJ/kg.
- Taxon
- Polygonum viviparumBistorta viviparat0
- Outcome
- calorific value of fruitse0
- Value
- 15.85 MJ/kge0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Polygonum viviparum”
e0“The calorific value of fruits in plots 2,3 and 7 did not show regularity: the average was 15.85 MJ/kg”
Claim · model-written summary
Fruit dry weight was negatively correlated with altitude.
- Taxon
- Polygonum viviparumBistorta viviparat0
- Outcome
- fruit dry weighte0
- Direction
- negative correlatione0
- Qualifier
- altitudee0
Not reportedSetting
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Polygonum viviparum”
e0“fruit dry weight had a significant negative correlation with altitude”
Claim · model-written summary
Fruit dry weight was positively correlated with plant coverage and aboveground litter storage.
- Taxon
- Polygonum viviparumBistorta viviparat0
- Outcome
- coverage of P.viviparum and aboveground litter storagee0
- Direction
- positive correlatione0
Not reportedSetting
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Polygonum viviparum”
e0“a significant(P0.05) positive correlation with coverage of P.viviparum and aboveground litter storage”
Claim · model-written summary
Various factors had no significant impact on total sugar.
- Taxon
- Polygonum viviparumBistorta viviparat0
- Outcome
- total sugare0
- Qualifier
- various factorse0
Not reportedSettingDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Polygonum viviparum”
e0“the impact of various factors on total sugar was not significant”
Claim · model-written summary
Estimated annual fruit yield in Hongyuan ranged from 17 387.81 to 105 674.34 t.
- Taxon
- Polygonum viviparumBistorta viviparat0
- Outcome
- fruit annual yielde0
- Value
- 17 387.81 to 105 674.34 te0
- Setting
- Hongyuane0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Polygonum viviparum”
e0“fruit annual yield in Hongyuan is from 17 387.81 to 105 674.34 t(fresh weight)”
Claim · model-written summary
Estimated annual fruit yield in Ruoergai ranged from 15 172.04 to 92 208.01 t.
- Taxon
- Polygonum viviparumBistorta viviparat0
- Outcome
- fruit annual yielde0
- Value
- 15 172.04 to 92 208.01 te0
- Setting
- Ruoergaie0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Polygonum viviparum”
e0“fruit annual yield in Hongyuan is from 17 387.81 to 105 674.34 t(fresh weight),in Ruoergai it is from 15 172.04 to 92 208.01 t(fresh weight)”
Claim · model-written summary
Estimated annual total sugar in Hongyuan ranged from 8 646.96 to 52 551.85 t.
- Taxon
- Polygonum viviparumBistorta viviparat0
- Outcome
- annual total sugare0
- Value
- 8 646.96 to 52 551.85 te0
- Setting
- Hongyuane0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Polygonum viviparum”
e0“annual total sugar in Hongyuan is from 8 646.96 to 52 551.85 t”
Claim · model-written summary
Estimated annual total sugar in Ruoergai ranged from 7 545.06 to 45 855.04 t.
- Taxon
- Polygonum viviparumBistorta viviparat0
- Outcome
- annual total sugare0
- Value
- 7 545.06 to 45 855.04 te0
- Setting
- Ruoergaie0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Polygonum viviparum”
e0“annual total sugar in Hongyuan is from 8 646.96 to 52 551.85 t,in Ruoergai it is from 7 545.06 to 45 855.04 t”