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从种群生态学和干扰生态学的角度出发,采用火史重建的方法,研究了大兴安岭北部兴安落叶松种群的稳定性与火干扰的关系。结果表明:研究区内历史上火干扰频繁,平均间隔期为28.9年,火烧强度较低。兴安落叶松依靠较强的耐火力、火后恢复力及自我恢复力具一定的稳定性。种群耐火力与长期火状况密切相关,表现为:低频类<中频类<高频类,高强类<中强类<低强类。火后恢复力与自我恢复力和最近一次火烧强度及距今时间密切相关:火后恢复力以高强类>中强类>低强类;自我恢复力以中强类>高强类>低强类。两种火后恢复力都以短期类>中期类>长期类。最后指出:兴安落叶松种群稳定持续发展需要适宜的火干扰。
From the point of view of population ecology and disturbance ecology, the relationship between fire stability and stability of Larix gmelinii population in the northern part of Daxingan Mountains was studied using the method of fire history reconstruction. The results show that the fire disturbance in the history of the study area is frequent, the average interval is 28.9 years, and the fire intensity is low. Larix larch relies on a strong fire resistance, fire resilience and self-recovery with a certain degree of stability. The fire resistance of the population is closely related to the long-term fire condition, as follows: low frequency type middle class> low-class; self-resilience to the strong class> high-strength class> . Both types of post-fire resilience are short-term> mid-term> long-term. Finally, it is pointed out that the stable and sustainable development of Larix gmelinii population requires appropriate fire disturbance.