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Position: Home > Articles > Distribution and spatial autocorrelation pattern of arthropods in agricultural landscape Chinese Journal of Ecology 2018 (8) 2384-2393

下辽河平原不同生境土壤节肢动物分布及空间自相关格局

作  者:
边振兴;果晓玉;于淼
关键词:
下辽河平原;非耕作生境;土壤节肢动物;空间自相关
摘  要:
了解不同生境中土壤节肢动物分布和空间自相关格局是进行非耕作生境结构优化和合理布局的基础。本文选择下辽河平原的辽中县为研究区,利用GIS技术选取非耕作生境比例在10%~20%的3个1 km×1 km网格为采样区。在分析各生境中土壤节肢动物分布特征的基础上,借助Geo Da分析土壤节肢动物数量全局和局域空间自相关性。结果表明:(1)不同生境类型中土壤节肢动物平均数量和类群数存在差异。沟渠中土壤节肢动物数量最多,并依次由林地、草地、坑塘水面、树篱、农田、农村道路至果园减少。类群数依次由农田、林地、树篱、农村道路、沟渠、草地、坑塘水面至果园减少。(2)土壤节肢动物呈显著的空间自相关性,即为聚集分布形态。(3)在沟渠、草地、林地和树篱生境中土壤节肢动物呈现出高-高聚集的"热点"区,在连片农田生境中土壤节肢动物呈现出低-低聚集的"冷点"区,而在农村道路和果园生境中没有出现明显的高-高聚集区。综上可知,沟渠、草地、林地和树篱对于农田中土壤节肢动物数量增加具有积极作用。
译  名:
Distribution and spatial autocorrelation pattern of arthropods in agricultural landscape
作  者:
BIAN Zhen-xing;GUO Xiao-yu;YU Miao;College of Land and Environment,Shenyang Agricultural University;College of Science,Shenyang Agricultural University;
单  位:
BIAN Zhen-xing%GUO Xiao-yu%YU Miao%College of Land and Environment,Shenyang Agricultural University%College of Science,Shenyang Agricultural University
关键词:
lower Liaohe River plain;;non-cropped habitat;;arthropods;;spatial autocorrelation
摘  要:
Understanding the distribution and spatial autocorrelation pattern of arthropods in cropped and non-cropped habitats is a basis for optimizing agricultural landscape layout and composition. In this study,arthropods were sampled from three sites with 1 km × 1 km grids with a proportion of non-cropped habitats from 10% to 20% in Liaozhong County in the lower Liaohe Plain. The distribution of arthropods was analyzed and spatial autocorrelation of arthropods on regional and local scales was analyzed based on Geo Da. The results showed differences in the average number and population size of arthropods among different habitats,with the most individual number of arthropods in ditches. The individual number decreased from woodland,grassland,pond,hedge,farmland,rural road to orchard. The population size of arthropods decreased from farmland,woodland,hedge,rural road,ditch,grassland,pond to orchard. The spatial distribution of arthropods had significant spatial autocorrelation and aggregation status. There were "hot spots"with high-high aggregation of arthropods in ditch,grassland,woodland and hedge,whereas there were "cold spots"with low-low aggregation of arthropods in continuous farmland. There were no obvious high-high aggregation areas in rural road and orchard. Therefore,agricultural landscapes combined with ditches,grasslands,woodlands and hedges had positive effects on arthropods quantity.

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