【摘要】 通过系统论述森林生态系统碳蓄积与碳循环的研究方法、森林生态系统碳蓄积与碳循环过程的时空特征以及森林与大气间碳交换的环境响应机制,发现:生物量法是研究碳蓄积的经典方法,而涡度相关法侧重于碳交换的过程与机制研究;森林生态系统在低纬度地区表现为碳源,而在中高纬度地区表现为碳汇,随着演替过程的进展,森林碳蓄积逐渐增大,直到顶级群落表现为相对碳平衡状态;辐射、温度和水分状况等环境因子通过对森林生态系统光合生产力(光合生产力)和生态系统呼吸的影响决定净生态系统碳收支的环境响应。同时指出我国森林生态系统碳蓄积和碳循环研究存在的问题和发展前景。更多还原

【Abstract】 By summarizing the research methods,the spatio-temporal characters of the carbon storage and carbon cycle in forest ecosystem and the environmental reaction on carbon exchange between the forest ecosystem and the atmosphere,some suggestions are given as follows: the biological statistical method is classical on carbon storage,and the eddy covariance method is propitious to the process and mechanism of carbon cycle;the forests in low latitude area are carbon sources,and carbon sinks in middle and high latitude;the carbon storage increases with the process of succession,and runs to a relative balance in climax;the environmental reaction to net ecosystem carbon budget is determined by the environmental factors(radiation,temperature and water etc.) in the process of photosynthesis and respiration of the forest ecosystem.The existing shortcomings and the directions for future research of forest ecosystem carbon storage and carbon cycle in China are also discussed in this paper.更多还原