Zhu Jian-Gang, Yu Xin-Xiao, Zhang Zhen-Ming, Wang Chen, Gan Jing, Wang Xiao-Ping, Li Jin-Hai
Ministry of Education Key Laboratory of Soil and Water Conservation & Desertification Combating, School of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, China.
Ying Yong Sheng Tai Xue Bao. 2009 Nov;20(11):2603-9.
Modeling techniques are indispensable for the researches on the carbon cycle of forest ecosystem. In this paper, a new general simulation system FORCASS (FORest CArbon Simulation System) was designed and developed under Simulink environment, with the objectives of modeling the carbon cycle dynamics of forest ecosystems. A comprehensive analysis on the framework, design solution, and development process showed that the FORCASS was feasible. This simulation system had the characteristics of 1) it divided the carbon storage in forest ecosystem into four compartments, i.e., vegetation, litter, soil, and animal, and took into account the carbon flows between the compartments, possessing high mechanism and easily to be comprehended, 2) it was a process-based system, taking the Richards growth function of vegetation component biomass carbon storage as the input to solve difference equations, and was easily to export the outputs such as net primary productivity (NPP) and net ecosystem productivity (NEP) at different stand ages, and 3) it had the explicit expansibility because it was developed based on a general framework for carbon cycle patterns.
建模技术对于森林生态系统碳循环的研究而言不可或缺。本文在Simulink环境下设计并开发了一种新型通用模拟系统FORCASS（森林碳模拟系统），旨在对森林生态系统的碳循环动态进行建模。对该系统的框架、设计方案及开发过程进行的全面分析表明，FORCASS是可行的。该模拟系统具有以下特点：1）将森林生态系统中的碳储量划分为四个部分，即植被、凋落物、土壤和动物，并考虑了各部分之间的碳流动，具有较高的机理性且易于理解；2）它是一个基于过程的系统，以植被组分生物量碳储量的Richards生长函数作为输入来求解差分方程，并且易于输出不同林龄下的净初级生产力（NPP）和净生态系统生产力（NEP）等输出结果；3）由于它是基于碳循环模式的通用框架开发的，具有明确的可扩展性。
