基于输入-输出流分析的生态网络φ模式能流、ρ模式能流测度方法  

The method of measuring energy flowφandρin ecological networks by inputoutput flow analysis

作　　者：李中才[1] 席旭东[1] 高琴[1] 李莉鸿[1] 

机构地区：[1]山东工商学院,烟台264005

出　　处：《生态学报》2011年第19期5860-5864,共5页Acta Ecologica Sinica

基　　金：国家自然科学基金资助项目(70973069);山东省自然基金项目(ZR2009HL011);教育部人文社科规划基金(10YJA630091;10YJA630040)

摘　　要：提出了生态网络能量传递的两类路径,即φ和ρ模式能流传递,运用输入-输出流方法推导了φ和ρ模式下的能量流通量计算公式。以Pilette和Kincaid提出的生态网络系统为例,计算了两种模式下系统能量通量的大小,评估了φ模式能流、ρ模式能流对生态网络能量传递的影响程度。研究表明:该生态系统每天能量流通量为31g C,其中90.23%的能量流通量是通过φ模式传递的,9.77%的能量流通量是通过ρ模式传递的;针对网络中每个节点,分析了φ和ρ模式对各自能量流通量的影响程度。The paper classifies all the groups of paths as first passage paths（set φ） and subsequent passage paths（setρ）,and explains the calculation method of the throughflow under the modelsφandρby the input-output flow analysis.We chose the five-compartment model of ecological network proposed by Pilette and Kincaid as an example,and calculateTSTφandTSTΩ,then quantitatively derive a correct evaluation influences of φand ρ on ecological network throughflow.The results show that： the total system throughflow is 31g C every day,and 90.23 percent of the total system throughflow corresponds to the modelφ,9.77 percent of the total system throughflow related to the modelρ.Finally,we respectively analyze how the modelsφandρinfluence the throughflow of every node in the ecological network.The non-measurable,unobservable and indirect properties developed by input-output analysis can provide a deeper insight into the ecosystem,thus offering quantitative methods for exploring indirect effects and interconnectivity.

关 键 词：输入-输出流 φ模式能流 ρ模式能流 生态网络 

分 类 号：Q14[生物学—生态学]