Study on soil animals community of {\sl Pinus koraiensis} broad--leaved mixed forest in Xiaoxing'an mountain
Study on soil animals community of {\sl Pinus koraiensis} broad--leaved mixed forest in Xiaoxing'an mountain
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发表时间：
2005
期刊：
影响因子：
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通讯作者：
Y. Miao;Xiuqin Yin
中科院分区：
文献类型：
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作者：
Y. Miao;Xiuqin Yin
对红松阔叶混交林土壤动物群落进行了研究。探讨了土壤动物的动态特征及其与环境因子的关系。揭示了土壤动物在生态系统中的地位和作用。每年6月、8月、10月各选3个小区。在每个样地中，共采集了4层土壤样品（枯枝落叶层、0- 10 cm、10- 20 cm和20- 30 cm），共计72个土壤样品。大型土壤动物活动面积为50 cm×50 cm，中小型土壤动物活动面积为10 cm×10 cm。分别采用手挑法和Tullgeren法分离土壤动物。连续两年对土壤动物进行取样。采用Shannon-Wiener指数对土壤动物多样性进行分析。采用一元线性回归方法研究了土壤动物与环境因子的关系。优势类群为甲螨目、等节甲螨科。优势类群和稀有类群的类群数和个体数随原因的变化较大。优势类群和稀有类群的个体数发生了变化。8月份个体和群体数量最多。明显与中温带气候因子有关。均衡的趋势。均匀度低，优势度高。多样性指数较低。它符合理性变化的规律。土壤动物与大气温度、降雨量、地温和日照的相关性表明，与降雨量和地温的相关性最显著。
Soil animal communities of Pinus koraiensis broad-leaved mixed forest were studied. The purpose was to discuss the dynamic characteristic of soil animals and relationship with environmental factors. The ecosystem geography distribution law of soil animals, soil animals'role and function in ecological system were revealed. In June, August, October each year, three plots were selected. In each plot, four layers were sampled (litter layer, 0--10 cm 10--20 cm & 20--30 cm), adding up to 72 soil sample. The area for large-sized soil animals was 50 cm×50 cm, and the area for middle-small-sized soil animals was 10 cm×10 cm. Separated soil animals through adopting hand-picking method and Tullgeren method respectively. Sampled the soil animals in two continuing years. Shannon-Wiener index was adopted to analyze the diversity of soil animals. Monad liner regression was used to search the relationship between soil animals and environmental factors. The dominant groups were Oribatida, Isotomidae. There were relatively great changes in groups and individual numbers of dominant groups and rare groups when the reason changed. The individual numbers of dominant groups and the groups of rare groups changed. The number of individual and group was the most in August. Obviously it correlated with climatic factors in middle temperate zone. The evenness trend. The evenness was low and dominance was high. The diversity index was low. It conformed with the law of reason change. The correlation between soil animals and atmospheric temperature, rainfall, ground temperature and sunlight showed the correlation with rainfall and soil temperature was the most significant.