Tan Bo, Wu Fu-zhong, Yang Wan-qin, Zhang Jian, Xu Zhen-feng, Liu Yang, Gou Xiao-lin
Key Laboratory of Ecological Forestry Engineering, Institute of Ecological Forestry, Sichuan Agricultural University, Wenjiang 611130, Sichuan, China.
Ying Yong Sheng Tai Xue Bao. 2013 Apr;24(4):1118-24.
An investigation was conducted on the population structure of soil arthropod community in the 3-, 8-, 14-, 31-, and 40-years old Pinus massoniana plantations in the upper reaches of the Yangtze River in spring (May) and autumn (October), 2011, aimed to search for the scientific management of the plantation. A total of 4045 soil arthropods were collected, belonging to 57 families. Both the individual density and the taxonomic group number of the soil arthropod community decreased obviously with increasing soil depth, and this trend increased with increasing stand age. The dominant groups and ordinary groups of the soil arthropod community varied greatly with the stand age of P. massoniana plantation, and a significant difference (P<0.05) was observed in the individual density and taxonomic group number among different age P. massoniana plantations. In comparison with other stand age P. massoniana plantations, 3years old P. massoniana plantation had a significant difference in the structure and diversity of soil arthropod community, and the similarity index of the soil arthropod community was lower. The individual density, taxonomic group number, and diversity of soil arthropod community were the highest in 8-years old P. massoniana plantation, and then, decreased obviously with increasing stand age. It was suggested that the land fertility of the P. massoniana plantations could be degraded with increasing stand age, and it would be appropriate to make artificial regulation and restoration in 8-years old P. massoniana plantation.
2011年春季（5月）和秋季（10月），对长江上游3年、8年、14年、31年和40年生马尾松人工林土壤节肢动物群落的种群结构进行了调查，旨在探寻人工林的科学经营管理方法。共采集到4045只土壤节肢动物，分属于57个科。土壤节肢动物群落的个体密度和分类群数量均随土壤深度增加而明显降低，且这种趋势随林分年龄增加而增强。土壤节肢动物群落的优势类群和常见类群随马尾松人工林林分年龄变化差异很大，不同年龄马尾松人工林的个体密度和分类群数量存在显著差异（P<0.05）。与其他林分年龄的马尾松人工林相比，3年生马尾松人工林土壤节肢动物群落的结构和多样性存在显著差异，土壤节肢动物群落的相似性指数较低。8年生马尾松人工林土壤节肢动物群落的个体密度、分类群数量和多样性最高，之后随林分年龄增加明显降低。研究表明，马尾松人工林的土壤肥力可能随林分年龄增加而下降，对8年生马尾松人工林进行人工调控和恢复较为适宜。
