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官天培, 谌利民, 符建荣, 宋延龄. 唐家河国家级自然保护区扭角羚环境容纳量[J]. 四川林业科技, 2015, 36(3): 69-74. DOI: 10.16779/j.cnki.1003-5508.2015.03.014
引用本文: 官天培, 谌利民, 符建荣, 宋延龄. 唐家河国家级自然保护区扭角羚环境容纳量[J]. 四川林业科技, 2015, 36(3): 69-74. DOI: 10.16779/j.cnki.1003-5508.2015.03.014
GUAN Tian-pei, CHEN Li-min, FU Jian-rong, SONG Yan-ling. Estimating the Carrying Capacity of Takins in Tangjiahe National Nature Reserve in Sichuan[J]. Journal of Sichuan Forestry Science and Technology, 2015, 36(3): 69-74. DOI: 10.16779/j.cnki.1003-5508.2015.03.014
Citation: GUAN Tian-pei, CHEN Li-min, FU Jian-rong, SONG Yan-ling. Estimating the Carrying Capacity of Takins in Tangjiahe National Nature Reserve in Sichuan[J]. Journal of Sichuan Forestry Science and Technology, 2015, 36(3): 69-74. DOI: 10.16779/j.cnki.1003-5508.2015.03.014

唐家河国家级自然保护区扭角羚环境容纳量

Estimating the Carrying Capacity of Takins in Tangjiahe National Nature Reserve in Sichuan

  • 摘要: 扭角羚(Budorcas taxicolor)是唐家河自然保护区主要保护对象之一,在近年的监测线路上有较多死亡记录。疾病和饥饿均有可能导致扭角羚异常死亡并与种群数量过大而导致的密度制约效应相关。因此,为了评价唐家河扭角羚的种群数量是否达到了饱和状态,自2012年12月~2014年10月,我们对唐家河扭角羚的种群现状及环境容纳量进行了调查和分析。结果显示,唐家河扭角羚冬季适宜栖息地中6种植被可提供的总能量值是2.82×1010±1.31×1010千焦,冬季每只成年扭角羚需要总能量为7.24×106千焦,因此可容纳成年扭角羚778只±362只。依据高山草甸种群数量估计,夏季高山草甸扭角羚密度约2.48只·hm-2,可得唐家河范围内高山草甸种群数量约1 324只,尚未达到种群容纳量。建议将唐家河扭角羚种群数量控制在1 500只以内,即5.4只·km-2

     

    Abstract: The takin is one of the key species in Tangjiahe National Nature Reserve. And yet some takins are frequently found dead during the routine monitoring in recent years. Such kind of death could be the results of diseases or starvation which were usually induced by over abundant population. Therefore,to assess takin population and estimate the carrying capacity,field survey and nutrition analysis were conducted from December 2012 to October 2014. The rcsults showed that the total energy provided by six plants in the winter-suitable habitat range summed up to 2.82 ±1.31×1010 KJ and the energy required per adult takin for over wintering was 7.24×106 KJ. And therefore the reserve could support 778 ±362 adult takins. The takin density was found to be 2.48 takins per hectare on alpine meadow during summer,and therefore it was estimated that 1324 takins were currently scattered within its summer range,less than its carrying capacity. It is recommended that it should be appropriate to keep the takin population less than 1 500 individuals,namely,5.4 takins per hectare in Tangjiahe National Nature Reserve.

     

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