依据藏狐的“出现点”数据，基于藏狐对家域内地形因子的利用，作者对青海省都兰县沟里乡野生藏狐的生境质量进行初步评价，并在基于个体藏狐最小空间需求的基础上，估算了研究地区的空间环境容纳量。 选择海拔、坡度、坡位和地形起伏度等4个主要的地形因子，应用Bonferroni置信区间比较藏狐对各因子的利用及其可获得性来建立单个因子评价准则，并依据各因子的分布特征进行综合生境评价。研究结果：藏狐最适宜的海拔高度为4 050～4 300 m，坡度为5～20°，坡位为上坡位和下坡位；藏狐对地形起伏度因子没有明显的选择性。根据藏狐对不同生境因子的利用，及不同藏狐个体生境利用的一致性，建立的综合评价准则为：X i=（X2海拔×X2坡位×X坡度×X地形起伏度）1/6。研究地区内适宜性区域面积约为17.4 km2，占总研究地区面积的38.8%，其中最适宜生境仅0.4 km2。藏狐家域面积从2.53 ～4.99 km2不等，不同个体间家域重叠指数（OI）从0.16～0.66不等。藏狐的最小空间需求为2.09～3.55 km2，研究地区藏狐的空间容纳量为7～12只。根据生境资源现状及监测结果表明，研究地区的藏狐种群数量保持稳定。
Based on “Presence data”, we assessed the habitat quality according to the physical factor utilized by Tibetan fox in Gouli Township, Dulan County, Qinghai Province, China. The spatial carrying capacity of Tibetan fox was also estimated according to their minimum space requirements. A total of 4 topographical factors, elevation, slope, terrain ruggedness and slope position, were used to conduct habitat assessment for Tibetan fox. The suitability of habitat factors were determined by comparing the utilization by Tibetan fox and its availability based on 95% Bonferroni confidence interval. A comprehensive assessment criterion was set up for all topographic factors. For Tibetan fox, the elevations of 4 050 - 4 300 m, the slopes of 5 -20°, the upper and lower slope positions were suitable habitat. Tibetan fox use terrain ruggedness non-selectively. According to the utilization of Tibetan fox on different topographic factors and the consistence of habitat utilization by different fox individuals, we set the comprehensive criterion as: Xi = （X2elevation×X2slope position×Xslope×Xterrainrug gadness）1/6.The area of suitable habitat is about 17.4 km2, which take a percentage of 38.8% of research area. The area of most suitable habitat is only 0.4 km2. The home range of Tibetan fox ranges from 2.53 km2 to 4.99 km2, and the overlap index (OI) of different individuals were 0.16 -0.66. The minimum space requirements of Tibetan fox are 2.09 -3.55 km2, and the spatial carrying capacity of Tibetan fox in suitable habitat is 7-12. According to the habitat resource and monitoring results, we infer that the Tibetan fox population is keeping steady.