Liu Ren-Tao, Zhao Ha-Lin, Zhao Xue-Yong
Ministry of Education Key Laboratory for Restoration and Reconstruction of Degraded Ecosystem in Northwestern China, Ningxia University, Yinchuan 750021, China.
Ying Yong Sheng Tai Xue Bao. 2012 Apr;23(4):1104-10.
In order to deeply understand the effects of afforestation on the soil faunal diversity in mobile sand land, an investigation was conducted on the community structure of soil animals in the mobile sand land and its adjacent about 30 years old forest land and shrub land in Hrqin Sand Land. Afforestation on the mobile sand land had remarkable effects on the soil properties, especially the soil environment in shrub land, in which, the soil water content, pH, and nutrient contents were improved. In the three lands investigated, a total of 485 individuals belonging to 11 soil animal groups were collected, among which, Acarina and Collembola were the dominant groups, Corrodentia was the common group, and the others were of rare groups. From the mobile sand land to shrub land to forest land, the soil faunal density decreased, group richness and Shannon index increased, and evenness declined, but no significant differences were observed in these indices among these three lands. It was suggested that afforestation on mobile sand land could improve the soil environment and enhance soil faunal diversity, but there was a limitation to take 30 years old plantations as test objects to investigate the effects of afforestation on soil faunal diversity in mobile sand land.
为深入了解造林对流动沙地土壤动物多样性的影响，在科尔沁沙地对流动沙地及其相邻约30年树龄的林地和灌丛地土壤动物群落结构进行了调查。流动沙地造林对土壤性质有显著影响，尤其是灌丛地的土壤环境，其中土壤含水量、pH值和养分含量均有所改善。在所调查的三块样地中，共采集到隶属于11个土壤动物类群的485个个体，其中蜱螨目和弹尾目为优势类群，啮齿目为常见类群，其他为稀有类群。从流动沙地到灌丛地再到林地，土壤动物密度降低，类群丰富度和香农指数增加，均匀度下降，但这三块样地在这些指标上均未观察到显著差异。研究表明，流动沙地造林可改善土壤环境并提高土壤动物多样性，但以30年树龄的人工林作为试验对象来研究造林对流动沙地土壤动物多样性的影响存在一定局限性。
