In this study,the grassland poisonous weeds of the Tenth Division of Xinjiang Production and Construction Corps was taken as the research object,and in order to find out the species,distribution and harm degree of the grassland poisonous weeds,systemati-cally evaluate the occurrence and harm status of the poisonous weeds,and provide a scientific theoretical basis for the prevention and control of poisonous weeds and the sustainable development of the grassland.Surveys were conducted by methods such as make a per-sonal inspection and sampling methods,and important value and diversity analyses were carried out..The results showed that there were 63 species of poisonous weeds in the Tenth Division,belonging to 23 families and 53 genera,of which the largest proportion of poisonous weeds in Compositae was 19%.The diversity index of Shannon-Wiener in poisonous weeds population was 3.56,the Simpson diversity index was 0.96,and the evenness index of Pielou was 0.86;The spatial distribution pattern of poisonous weeds tended to be evenly distributed;The dominant poisonous weeds were Sophora alopecuroides,Aconitum kongboense,Spiraea hypericifolia,Caragana stenophylla,camel thorn,Alhagi camelorum,Urtica cannabina,Nitraria tangutorum and Echinops sphaerocephalus,mainly distributed in the 181 regiment,182 regiment and 185 regiment.There are many types of poisonous weeds in the grasslands of the Tenth Division,with a wide distribution and serious harm.Therefore,investigating and understanding their distribution are of great significance for the prevention and control of poisonous weeds.
grasslandpoisonous weedsspecies and distributionthe Tenth Division of Xinjiang Production and Construction Corps
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万方数据
