洪河自然保护区丹顶鹤秋季觅食生境初步研究

The preliminary study on foraging habitat of Red-crowned Crane in autumn in Honghe Nature Reserve

2005-10-12～21对洪河自然保护区秋季丹顶鹤的觅食生境采用因子测定法,对栖息地进行了觅食生境的研究,包括植物高度、植物密度、植物盖度、水深、水流、人为干扰等。对丹顶鹤觅食生境进行样方测定。结果表明洪河自然保护区的植物盖度为49.50%,植物密度为491株/㎡。根据对野外调查数据用标准差分析以及平均值比较等数学方法处理,得出了以下结论:丹顶鹤喜好在植物高度60-120cm,植物盖度低于75%,植物密度在600棵/㎡的左右生境中觅食,距人类活动场所的距离大于500m的生境中觅食。本研究为保护丹顶鹤栖息地提供重要的依据。

Foraging habitat of Red-crowned Crane in Autumn was investigated by factor determined in Honghe Nature Reserve from Oct. 12- 21, 2005. The height, density and coverage of the vegetation, the depth of water, human disturbance and other factors in their habitat were measured, Foraging habitat of Red-crowned crane is also measured by quadrate methods. According to the measurement, the paper compares the foraging habitat of Red-crowned Crane in Honghe Nature Reserve. The result show： the coverage of the vegetation is 49. 50%, the density was 491/m2. The data was analyzed by variance and average value compare and other mathematics methods, then get the result： they prefer the foraging habitat that height of the vegetation 60-120cm, coverage lower 75%, density lower 600/m2 and active in the habitat that human disturbance was over 500m. The research can provide some data for their conservation.