Changes in Soil Arthropod Abundance and Community Structure across a Poplar Plantation Chronosequence in Reclaimed Coastal Saline Soil
Changes in Soil Arthropod Abundance and Community Structure across a Poplar Plantation Chronosequence in Reclaimed Coastal Saline Soil
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DOI：
10.3390/f9100644
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发表时间：
2018-10
期刊：
影响因子：
2.9
通讯作者：
Yuanyuan Li;Han Y. H. Chen;Qi-Qi Song-Qi;Jiahui Liao;Ziqian Xu;Shide Huang;H. Ruan
中科院分区：
文献类型：
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作者：
Yuanyuan Li;Han Y. H. Chen;Qi-Qi Song-Qi;Jiahui Liao;Ziqian Xu;Shide Huang;H. Ruan
杨树人工林有能力改善沿海泥泞地区的土壤性质；然而，我们对人工林发展对土壤节肢动物的影响的了解仍然有限。在这项研究中，我们测定了东部沿海中国不同树龄(5年、10年和21年)杨树人工林土壤栖息节肢动物的群落动态。不同林分发育程度不同，土壤节肢动物总丰度不同。此外，还有一些涉及采样日期的交互作用。平均而言，10年生林分总丰度最高，5年生林分总丰度最低。总丰度在6月和9月表现出强烈的年龄相关性趋势，但在3月或12月没有。在5年生至21年生的林分中，原丝虫和Oriabatida的丰度增加，其中10年生的丰富度最高。弹尾目动物的丰度随着林分发育的增加而增加，但林龄对后足型、半陆型和优水型弹尾目动物的丰度没有显著影响。3个林分年龄的排序丰富度(Hill数q=0)曲线可信区间重叠。Shannon和Simpson多样性(Hill数q=1和q=2)在10年生和21年生林龄之间存在差异。它们表现出几乎相似的趋势，最高值和最低值分别出现在21年生和10年生林龄。变异多元方差分析表明，林分组成随采样期和林分年龄的变化也显著不同，6月份采样的10年生林分与其他林分之间的分离程度较好。指标分析表明，6月份10年生林分的指标是蜈蚣类和原尾目，而9月份抽样的21年生林分则是弹尾目。研究结果表明，林分发育和气候季节性都会显著影响人工杨树人工林围垦滨海盐碱地土壤节肢动物群落动态。
Poplar plantations have the capacity to improve the properties of soils in muddy coastal areas; however, our understanding of the impacts of plantation development on soil arthropods remains limited. For this study, we determined the community dynamics of soil dwelling arthropods across poplar plantations of different ages (5-, 10-, and 21-years) over the course of one year in Eastern Coastal China. The total abundance of soil arthropods differed with stand development. Further, there were some interactions that involved the sampling date. On average, total abundance was highest in the 10-year-old stands and lowest in the 5-year-old stands. Total abundance exhibited strong age-dependent trends in June and September, but not in March or December. The abundance of Prostigmata and Oribatida increased in the 5- to 21-year-old stands, with the highest levels being in the 10-year-old stands. The abundance of Collembola increased with stand development; however, the stand age had no significant impact on the abundance of epedapic, hemiedaphic, and euedaphic Collembola. Order richness (Hill number q = 0) curve confidence intervals overlapped among three stand ages. Shannon and Simpson diversity (Hill numbers q = 1 and q = 2) differed between 10- and 21-year-old stand age. They showed almost similar trends, and the highest and lowest values were recorded in the 21- and 10-year-old stand ages, respectively. Permutational multivariate analysis of variance demonstrated that composition also varied significantly with the sampling date and stand age, and the 10-year-old stands that were sampled in June stood well-separated from the others. Indicator analysis revealed that Scolopendromorpha and Prostigmata were indicators in June for the 10-year-old stands, while Collembola were indicators for the 21-year-old stands sampled in September. Our results highlight that both stand development and climate seasonality can significantly impact soil arthropod community dynamics in the reclaimed coastal saline soils of managed poplar plantations.