| 无树草甸草原火周期研究方法的探讨 |
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| 引用本文： | 周道玮.无树草甸草原火周期研究方法的探讨[J].生态学报,1995,15(1):61-65. |
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| 作者姓名： | 周道玮 |
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| 作者单位： | 东北师范大学草地研究所 |
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| 摘 要： | 火是草地生态系统正常的自然环境因子，火周期是火状况的组成要素之一，无树草原火周期一直没有可行的研究方法。本文以扰动生态理论为基础，根据最优化原理，通过解方程，确立了一种研究无树草甸草原火周期的方法－最佳积累量法，实验表明该方法所计算的羊草－杂类草原火周期为４ａ，符合生产实际。
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| 关 键 词： | 无树草甸草原 火周期 生态系 草原 |
| 收稿时间： | 1993/6/29 0:00:00 |
| 修稿时间： | 1993/12/8 0:00:00 |
METHOD FOR DETERMINING FIRE CYCLE IN TREELESS MEADOW GRASSLANDS |
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| ZHOU Daowei.METHOD FOR DETERMINING FIRE CYCLE IN TREELESS MEADOW GRASSLANDS[J].Acta Ecologica Sinica,1995,15(1):61-65. |
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| Authors: | ZHOU Daowei |
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| Institution: | Institute of Grassland; Northeast Normal University; Changchun; 130024 |
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| Abstract: | ased on the theory of disturbance ecology and the principles of opitimization , an opti-mum accumulation method has been developed which can be used to determine the cycle offires occurring in treeless meadow grassiands. After a grassland fire,the grassland ecosystemwill have its characteristics contineously changed with gradually accumulating litters. If thelitter,related to a fire has a vield of A and is accumulated at a rate of R,then the litter will beaccumulated to an optimum amount of C in N years be... |
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| Keywords: | reeless meadow grassland fire cycle methodology theory of disturbance e-cology |
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