北京东灵山土壤动物多样性海拔格局的尺度推绎规律  

Scaling laws of altitudinal pattern of soil fauna diversity in Dongling Mountain,Beijing,China

作　　者：丁彰琦 徐国瑞 张霜 张育新[1] 马克明[1,2] DING Zhang-qi;XU Guo-rui;ZHANG Shuang;ZHANG Yu-xin;MA Ke-ming(State Key Laboratory of Urban and Regional Ecology,Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,China;University of Chinese Academy of Sciences,Beijing 100049,China;GAS Key Laboratory of Tropical Forestry Ecology,Xishuangbanna Tropical Botanical Garden,Chinese Academy of Sciences,Mengla 666303,Yunnan,China)

机构地区：[1]中国科学院生态环境研究中心城市与区域生态国家重点实验室,北京100085 [2]中国科学院大学,北京100049 [3]中国科学院西双版纳热带植物园热带森林生态学重点实验室,云南勐腊666303

出　　处：《应用生态学报》2021年第12期4272-4278,共7页Chinese Journal of Applied Ecology

基　　金：国家自然科学基金项目(31470481)资助。

摘　　要：识别群落内部各类群多样性格局的复杂性是生态学家面临的挑战,而尺度推绎规律是揭示复杂生态结构的有效途径之一。本研究利用多重分形的方法探索了不同海拔土壤动物多样性格局的尺度推绎规律,对比分析了凋落物层和土壤层之间多重分形谱的差异。结果表明:与之前对植物群落的分析结果相似,土壤动物多样性尺度推绎规律同样具有幂律特征,如丰富度、Shannon多样性指数和Simpson多样性的倒数。凋落物层和土壤层中不同相对多度土壤动物的丰富度也具有幂律尺度推绎规律。凋落物层和土壤层中土壤动物多样性格局都具有多重分形特征,但凋落物层中多样性的分形结构比土壤层更均匀,且两层间优势类群与稀有类群的尺度推绎特征在多重分形谱上不同格局。幂律尺度推绎规律对于有着较高丰富度与多度的土壤动物同样存在,从而有助于揭示地下生物多样性的空间分布机制。Identifying the complexity of diversity pattern of various taxa within a community is a challenge for ecologist.Scaling law is one of the suitable ways to detecting the complex ecological structure.In this study,we explored the scaling laws of soil fauna diversity pattern along an altitudinal gradient by multifractal analysis,and compared the difference of multifractal spectra between the litter and the soil layers.Consistent with results from plant communities in previous studies,there was power law scaling law for soil fauna diversity,i.e.,richness,the exponential of Shannon’s Diversity Index,and the inverse Simpson’s Diversity Index.Moreover,power law scaling law also existed for the richness changes of different relative abundance species in both litter and soil layers.Although multifractal characteristics existed for both litter layer and soil layer of soil fauna diversity,the fractal structure of the diversity in the litter layer was more even than that in the soil layer,and the scaling properties of dominant and rare species showed different patterns in multifractal spectra between litter layer and soil layer.In conclusion,there were power law scaling laws for soil fauna diversity which had high richness and abundance along the altitudinal gradient,which would help us uncovering the spatial distribution mechanism of belowground biodiversity.

关 键 词：土壤动物 生物多样性 尺度推绎规律 多重分形 海拔 

分 类 号：S154.5[农业科学—土壤学]