山地苹果园大型土壤动物与土壤因子关系分析

The analysis of the relationship between soil factors and soil faunas in mountainous apple orchards

为了研究山地苹果园大型土壤动物对土壤环境因子的指示作用,并以此来对延安山地苹果园害虫的防治及调控工作提供参考。分别选取延安市山地苹果园的示范园、常规园、撂荒地3个样地,通过采集和分离归类大型土壤动物,并对其土样进行分析研究,分析大型土壤动物与土壤因子之间的关系。发现陕北山地苹果园土壤动物的数量受土壤含水量的影响程度最大;土壤动物类群受p H的影响程度最大;铵态氮对土壤动物的数量和类群影响不大;土壤动物与土壤因子的关系具有明显的季节性变化。山地苹果园大型土壤动物的数量和类群不仅受其生境环境的影响,也受季节变化的影响。

We studied the directive function of the elements of soil environment in which soil animals held towards mountain apple orchard to provide reference for the prevention and control of pests at apple orchards located on mountains in Yanan. We took Demonstrative Garden, Conventional Garden and Abandoned Land in Yanan as samples respectively, to analyze the relationship between soil animals and soil elements by collecting and separating classified soil animals and studying the soil samples related to these animals. The results show that the soil moisture content had an influence on the soil animals＇ amount at apple orchard, and this was the most obvious in mountainous region of Northern Shaanxi. The effects of p H on the soil animals＇ species at apple orchard in mountainous region of Northern Shaanxi was the most obvious. The influence of ammonium nitrogen on soil animals＇ amount and species was not very obvious. The relationship between soil animals and soil elements changed from season to season. Animals＇ amount and species are not only influenced by the environment they live in, but also are influenced by the season.