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Ground-level ozone distribution pattern in summer of Beijing and its foliar injury effect upon plants
The results indicated that the ozone concentrations in mountain regions were significantly higher than those in plain regions around Beijing, and Ailanthus altissima might work as bio-indicator of ozone in Beijing. Expand
Pattern-controlling mechanics of different age classes of Stellera chamaejasme population in degraded alpine grassland
Ripley′s K function is used to study the pattern-controlling relationship and spatial association of Stellera chamaejasmea plants in degraded grassland to reveal the process of the diffusion of cooperation and competition relationships of the StellERA chamaesmea population in degraded Grassland. Expand
Spatial distribution and spatial association of Stellera chamaejasme population in the different altitude in in degraded alpine grassland
Stellera chamaejasme population possess apparent response mechanism to environmental change, by each other shield reduce propagation, weaken intraspecific competition and enhance aggregate strength realize survival and reproduction. Expand
In the process of grassland degradation the spatial pattern and spatial association of dominant species
The spatial association of Melica przewalskyi replacing Stipa Krylovii gradually transferred from negative to no association and negative correlation increased significantly in the beginning, and then weakened. Expand
Spatial pattern of sexual plants and vegetative plants of Stipa krylovii population in alpine degraded grassland
Spatial pattern is important in plant ecology as it affected the dynamics of plant populations,communities and ecosystem processes,which can reveal the dynamic and stability of population andExpand
Ozone uptake at the canopy level in Robinia pseudoacacia in Beijing based on sap flow measurements
The whole-tree O3 uptake by Robinia pseudoacacia, one of urban greening tree species in Beijing, was estimated based on sap flow measurements and the data of micro-climate and ambient O3 concentration were collected and examined to examine how O3 flux in R. pseudoACacia trees is regulated by the stomata and environmental conditions. Expand