观赏桃园昆虫群落结构及多样性的研究

Study on the Structure and Diversity of Insect Community in Peach Orchard

对观赏桃园昆虫群落的结构及多样性研究表明：观赏桃园昆虫有61种，隶属于11目44科。物种数随季节变化而变化，主要优势种为桃小绿叶蝉（Empoasca flavescens Fabr．）和山楂叶螨（Tetranychus viennesis Zacher）。在不同时间其优势度、多样性、均匀性等也不断变化。根据群落的相异系数对观赏桃园6～9月的昆虫群落进行分析表明，9月上旬与9月中旬的昆虫群落最为相似，其次是7月下旬与8月中旬。

The results from studying the structure and diversity of insect community in peach orchard show that there are 61 species （44 families, 11 orders） in peach orchard and the species varies with the season change. The main dominant species are Empoasca flavescens Fahr and Tetranychus viennesis Zacher and their dominance, diversity and evenness varies at the different time. The insect community is the most similar between the first ten-day period of September and the middle ten-day period of September and the similar between the last ten-day period of July and the middle ten-day period of August according to the results from analyzing the insect community in peach orchard from June to September.