中文摘要：

因为他们在滋养的骑车起一个重要作用，土壤动物志一直在收到越来越多的注意。然而，有在在北 Hebei 的多山的区域的森林大草原交错群落的土壤节肢动物的信息的缺乏，它使满足在这个区域保护生物多样性的需要困难。土壤节肢动物社区在北 Hebei 省在森林大草原交错群落被调查在山土壤富饶在变化上提供基本信息，它能在山交错群落支持土壤节肢动物社区的发展。从初步的鉴定， 7994 个单个土壤节肢动物的一个总数被收集，它属于 25 个组， 6 个班和 24 份订单。Acarina， Hymenoptera 和 Collembola 是在交错群落的主导的组。Acarina 的数字比 Collembola 高，并且这现象与在一样的气候地区的另外的区域显然不同。增加的许多在有更富有的植被，更高的节肢动物丰富和更实质的崽深度的福雷斯特地区的稀罕的组，能作为对合适的土壤环境和食物供应的反应被解释。并且这些稀罕的组对环境变化敏感，当为评估的关於生命的指示物玷污质量，它能被考虑。社区差异的分析证明丰富索引(d) ， Shannon 牛肉熏香肠索引(H 鈥 ? ，平均索引(J) 和密度组索引(DG ) 在森林地区是显著地更高的，在草地大草原地区在森林大草原地区更低、最低。在社区作文的季节的变化在这交错群落在平均空气温度和降水与变化相关。在三个地区的土壤节肢动物社区的组和个人总体上比在雨季的早或迟了的时期在在雨季的中间的更大的数字是在场的。同时，在从不同阴谋的土壤节肢动物社区的季节的变化被产地状况也影响。关键词玷污节肢动物 - 差异 - 作文 - 交错群落 - 季节的变化 - 多山的区域

英文摘要：

Soil fauna have been receiving more and more attention because they play an important role in nutrient cycling. However, there is a lack of information on soil arthropods in the forest-steppe ecotone in the mountainous region of northern Hebei, which makes it difficult to meet the need of protecting biodiversity in this area. Soil arthropod communities were investigated in the forest-steppe ecotone in northern Hebei province to provide basic information on changes in mountain soil fertility, which could promote the development of soil arthropod communities in mountain ecotones. From the preliminary identification, a total of 7994 individual soil arthropods were collected, which belonged to 25 groups, 6 classes and 24 orders. Acarina, Hymenoptera and Collembola were the dominant groups in the ecotone. The number of Acarina was higher than Collembola, and this phenomenon was obviously different from other areas in the same climate zone. The increased abundance of rare groups in the Forest zone with the richer vegetation, higher arthropod abundance and more substantial litter depth, could be interpreted as a reaction to the suitable soil environment and food supply. And these rare groups were sensitive to environmental changes, which could be regarded as biotic indicators for evaluating soil quality. The analysis of community diversity showed that the abundance index （d）, the Shannon-Wiener index （H＇）, the evenness index （J） and the density-group index （DG） were significantly higher in the forest zone, lower in the forest-steppe zone, and lowest in the meadow-steppe zone. Seasonal variations in community composition correlated with changes in average air temperature and precipitation in this ecotone. Groups and individuals of soil arthropod communities in the three zones were present in greater numbers in the middle of the rainy season than in the early or late periods of the rainy season as a whole. At the same time, seasonal changes in soil arthropod communities from different plots were also inf