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- Title
不同景观尺度对杨盾蚧种群空间分布的影响分析.
- Authors
付园园; 蒋萍; 刘爱华; 张静文; 岳朝阳; 田呈明
- Abstract
【Objective】 The differences of spatial pattern of Diaspidiotusslavonicus (Green) population under different landscape scales (different landscape structures/different habitat) were studied in the hope of providing a theoretical basis for the rational allocation of landscape elements and the prevention and control of the insect in the future. 【Method】 ArcGIS was used to classify landscape elements, and calculated the landscape indexes, and based on GS, spatial model was established by geostatistics. 【Result】 The semi-variation function models of different landscapes are different, in which the Gaussian model (LS1) was significantly different from the exponential model (LS5). Landscape diversity index and landscape uniformity index had no direct effect on the spatial distribution of D. slavonicus, but the average area perimeter ratio was negatively correlated with the average insect population density. The population of D. slavonicus showed aggregation in different habitats, and the semi-variance function models were in accordance with the Gaussian and exponential models respectively. Moreover, under the woodland habitat, the average population density of D. slavonicus population was small, there was high continuity in space, and the variation ability was weak. Under the farmland fringe habitat, the average population density was large, and the spatial variability was strong and the patial aggregation was also strong. 【Conclusion 】 The artificial interference (agriculture, watering, weeding, etc.) caused the landscape to be fragmented. The combination of the composition and configuration of landscape elements has controlled the diffusion and development of D. slavonicus to a certain extent. However, the rational configuration of the composition needs experimental exploration.
- Publication
Xinjiang Agricultural Sciences, 2019, Vol 56, Issue 11, p2043
- ISSN
1001-4330
- Publication type
Article
- DOI
10.6048/j.issn.1001-4330.2019.11.010