泉三高速公路动物通道选址研究——以云豹为例

Site selection of animal passage on Quanzhou-Sanming expressway:a case study of Neofelis nebulosa

随着高速路网不断扩大和加密,动物适宜的生存空间也不断被阻隔。动物通道作为缓解高速公路负面影响的重要手段,通道位置是其发挥效用的关键。以泉三高速公路为对象,以云豹(Neofelis nebulosa)为目标物种,构建了生境评价指标体系并采用专家咨询法确定相对权重,利用GIS对其生境适宜性进行了评价。在此基础上结合水文分析,以水流方向类比动物倾向活动路线,由此确定获得云豹的3处理想高速公路通道位置。研究结果表明,该方法能有效地模拟并确定动物运动的轨迹,可为建立合适的动物通道、有效缓解公路的阻隔效应提供重要的参考价值。

With the continuous expansion and encryption of expressway networks,the suitable habitat for wild animals is being increasingly blocked.Construction of animal passage is an effective way to alleviate the negative impacts of expressway network on wild animals.The location of animal passage is the most important factor to contribute the effectiveness of the animal passage.Taking the Quanzhou-Sanming Expressway in Fujian Province as a case,and the Neofelis nebulosa as the target animal species,an assessment indicator system of the animal habitat was constructed,then the method of expert consultation was employed to decide the relative weight of each factor.As a result,the habitat suitability of the Neofelis nebulosa was evaluated by GIS program.On the basis of the distribution of the habitat suitability,the potential moving routes of Neofelis nebulosa were simulated by the hydrological analysis module of GIS platform.To this end,the direction of water flow was used to simulate the movement route of animals.Therefore,the three ideal locations of the animal passage for Neofelis nebulosi were determined.The results show that our method can effectively simulate and determine the trajectory of the animal movement.Therefore,this study can shed a new light on the construction of suitable animal passages for effectively alleviating the barrier effect of the highways.