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应用生态学报 ›› 2010, Vol. 21 ›› Issue (01): 129-135.

• 研究报告 • 上一篇    下一篇

基于功能平衡假说的玉米光合产物分配动态模拟

平晓燕1,3;周广胜1,2**;孙敬松1,3;许振柱1   

  1. 1中国科学院植物研究所植被与环境变化国家重点实验室,北京 100093;2中国气象科学研究院,北京 100081;3中国科学院研究生院,北京 100049
  • 出版日期:2010-01-20 发布日期:2010-01-20

Dynamic simulation of photosynthate allocation in maize organs based on functional equilibrium hypothesis.

PING Xiao-yan1,3, ZHOU Guang-sheng1,2, SUN Jing-song1,3, XU Zhen-zhu1   

  1. 1State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences,Beijing 100093, China|2Chinese Academy of Meteorological Sciences, Beijing 100081, China|3Graduate University of Chinese Academy of Sciences, Beijing 100049, China
  • Online:2010-01-20 Published:2010-01-20

摘要: 基于中国气象局沈阳大气环境研究所锦州农田生态系统定位观测站2004—2008年玉米各器官(根、茎和叶)生物量及相应环境因子的连续动态观测资料,检验了Friedlingstein模型在站点与日尺度上的适用性,并发展了基于施肥、土壤温度和土壤有效水分系数的玉米农田土壤有效养分系数模型,建立了基于功能平衡假说的日尺度的玉米光合产物的分配模型结果表明:与Friedlingstein模型相比,本文所建的玉米光合产物分配模型能更好地模拟玉米光合产物分配动态,为准确模拟日尺度的玉米农田生态系统生产力提供了技术支持.

关键词: 光合产物分配模型, 功能平衡假说, 玉米, 普适性生长方程, 土壤有效养分系数, IPAT模型, 人文驱动力, 环境压力, 生态弹性

Abstract: By using the 2004-2008 observation data of maize biomass and related environmental factors from the Jinzhou Agricultural Ecosystem Research Station of Shenyang Institute of Atmospheric Environment under China Meteorological Administration (CMA), the Friedlingstein model was validated and tested at station site and daily time scales. A model of  soil available nutrient coefficient for maize field  was developed, based on fertilization, soil temperature, and soil available water; and a daily time scale maize photosynthate allocation model was built, according to the functional  equilibrium hypothesis. Comparing with Friedlingstein model, the daily time scale maize photosynthate allocation model could give more accurate simulation of photosynthate allocation in maize root, stem, and leaf, and provide technical support for accurate simulation of daily net primary productivity of maize agro-ecosystem.

Key words: photosynthate allocation model, functional equilibrium hypothesis, maize, universal growth equation, soil available nutrient coefficient, IPAT models, human driving force, environmental pressure, ecological elasticity.