Corpus ID: 87734797

Fine-scale spatial patterns of Stellera chamaejasme population in degraded alpine grassland in upper reaches of Heihe,China

  title={Fine-scale spatial patterns of Stellera chamaejasme population in degraded alpine grassland in upper reaches of Heihe,China},
  author={Zhao Cheng-zhang and Gao Fuyuan and W. Xiaopeng and Shen Yaping and Shi Fuxi},
  journal={Chinese Journal of Plant Ecology},
Aims The formation and changes of patches has an important effect on population patterns.Our objectives are to determine 1) how patches are formed during the process of Stellera chamaejasme population dispersion,2) what is the effect on pattern during forming and changing of the patch and 3) what roles the formation and changes of the patches play in population dispersion.Methods We studied five 2 m × 2 m plots of different S.chamaejasme cover in the upper reaches of Heihe,China,using the point… Expand
The expansion process of a Stellera chamaejasme population in a degraded alpine meadow of Northwest China
The quantity of older individuals had a significant impact on the variation of the spatial distribution patterns of S. chamaejasme and the size compositions were closely related to the size composition of the S. Chamaejame population. 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
Spatial pattern and competition relationship ofStellera chamaejasmeandAneurolepidium dasystachyspopulation in degraded alpine grassland
Human activities are affecting the habitat, which decrease the number of habitats and recede the quality. The biggest threat to species diversity worldwide is the loss of suitable habitat. HumanExpand
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
Don’t judge toxic weeds on whether they are native but on their ecological effects
It is highlighted that the establishment of toxic weeds may provide a self‐protective strategy of degenerated pastures that do not require special interventions, and policymakers, managers, and other personnel responsible for managing grasslands need to take appropriate actions to assess the long‐term trade‐offs between the development of animal husbandry and the maintenance of ecological services provided by grasslands. Expand