Abstract
Abstract A field study was conducted to test the responses of Leymus chinensis to long‐term grazing disturbance on a native grassland in the Songnen plain, north‐eastern China. Six grazing intensities were examined using thirty random sample plots in each. Components of biomass, and shoot and tiller densities of L. chinensis decreased significantly ( P < 0·05) with increased grazing intensity, especially at the extremely high grazing intensity. Conversely, the proportion of the total biomass as rhizomes increased considerably with increased grazing intensity, and peaked on the extremely high grazing treatment (at 0·91 of the total biomass). Shoot and tiller densities, and the proportion of the total biomass as rhizomes were strongly negatively correlated with soil organic matter content and soil moisture content and negatively correlated with soil pH and soil bulk density along the grazing gradient, indicating that the responses of L. chinensis to the canopy removal by long‐term grazing are likely to have influenced changes in the soil.
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Claims 7
Claim · model-written summary
Components of biomass decreased with increasing grazing intensity.
- Taxon
- L. chinensisLeymus chinensise0
- Treatment
- increased grazing intensitye0
- Outcome
- Components of biomasse0
- Direction
- decreasede0
- Qualifier
- especially at the extremely high grazing intensitye0
Not reportedComparator
Verbatim
e0“Components of biomass, and shoot and tiller densities of L. chinensis decreased significantly ( P < 0·05) with increased grazing intensity, especially at the extremely high grazing intensity.”
Claim · model-written summary
shoot and tiller densities decreased with increasing grazing intensity.
- Taxon
- L. chinensisLeymus chinensise0
- Treatment
- increased grazing intensitye0
- Outcome
- shoot and tiller densitiese0
- Direction
- decreasede0
- Qualifier
- especially at the extremely high grazing intensitye0
Not reportedComparator
Verbatim
e0“Components of biomass, and shoot and tiller densities of L. chinensis decreased significantly ( P < 0·05) with increased grazing intensity, especially at the extremely high grazing intensity.”
Claim · model-written summary
The rhizome share of biomass rose with grazing and peaked at 0·91 under extremely high grazing.
- Taxon
- Leymus chinensisLeymus chinensist0
- Treatment
- increased grazing intensitye0
- Outcome
- proportion of the total biomass as rhizomese0
- Direction
- increasede0
- Value
- 0·91 of the total biomasse0
Not reportedComparator
Verbatim
e0“Conversely, the proportion of the total biomass as rhizomes increased considerably with increased grazing intensity, and peaked on the extremely high grazing treatment (at 0·91 of the total biomass).”
t0“Leymus chinensis”
Claim · model-written summary
Shoot and tiller densities was negatively correlated with soil organic matter content and soil moisture content.
- Taxon
- Leymus chinensisLeymus chinensist0
- Outcome
- Shoot and tiller densitiese0
- Direction
- negatively correlatede0
- Setting
- soil organic matter content and soil moisture contente0
Verbatim
e0“Shoot and tiller densities, and the proportion of the total biomass as rhizomes were strongly negatively correlated with soil organic matter content and soil moisture content and negatively correlated with soil pH and soil bulk density along the grazing gradient”
t0“Leymus chinensis”
Claim · model-written summary
proportion of the total biomass as rhizomes was negatively correlated with soil organic matter content and soil moisture content.
- Taxon
- Leymus chinensisLeymus chinensist0
- Outcome
- proportion of the total biomass as rhizomese0
- Direction
- negatively correlatede0
- Setting
- soil organic matter content and soil moisture contente0
Verbatim
e0“Shoot and tiller densities, and the proportion of the total biomass as rhizomes were strongly negatively correlated with soil organic matter content and soil moisture content and negatively correlated with soil pH and soil bulk density along the grazing gradient”
t0“Leymus chinensis”
Claim · model-written summary
Shoot and tiller densities was negatively correlated with soil pH and soil bulk density.
- Taxon
- Leymus chinensisLeymus chinensist0
- Outcome
- Shoot and tiller densitiese0
- Direction
- negatively correlatede0
- Setting
- soil pH and soil bulk densitye0
Verbatim
e0“Shoot and tiller densities, and the proportion of the total biomass as rhizomes were strongly negatively correlated with soil organic matter content and soil moisture content and negatively correlated with soil pH and soil bulk density along the grazing gradient”
t0“Leymus chinensis”
Claim · model-written summary
proportion of the total biomass as rhizomes was negatively correlated with soil pH and soil bulk density.
- Taxon
- Leymus chinensisLeymus chinensist0
- Outcome
- proportion of the total biomass as rhizomese0
- Direction
- negatively correlatede0
- Setting
- soil pH and soil bulk densitye0
Verbatim
e0“Shoot and tiller densities, and the proportion of the total biomass as rhizomes were strongly negatively correlated with soil organic matter content and soil moisture content and negatively correlated with soil pH and soil bulk density along the grazing gradient”
t0“Leymus chinensis”
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See all 16 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.