【摘要】 为获取秦岭北坡西安鄠邑段浅山区动物多样性本底数据,并监测其变化趋势,在该地区设置3条样线,连续3年调查动物物种和数量,采用Shannon-Wiener指数和Simpson指数,对区域内动物多样性进行定量测算。结果表明,太平峪的2种多样性指数较高,而且近3年基本稳定,涝峪和紫阁峪多样性指数较低,且在近3年呈下降趋势。分析造成动物多样性下降的原因,认为是由于以前滥伐林木,目前的人工育林树种较单一,以及山民砍伐灌木作燃料造成生态环境遭到破坏所导致。更多还原

【Abstract】 To obtain the basic data of animal diversity and monitor the changing trend in shallow mountainous area of Huyi section of the northern slope of Qinling mountains,three sample lines were set up to investigate the quantity and the species of animal in three consecutive years and Shannon-Wiener index and Simpson index were used to quantitatively estimate animal diversity in this area.The results showed that the diversity index of Taiping Valley with the basically stable trend on index was significantly higher than that of Laoyu Valley and Zige Valley which showed declined on index in three consecutive years.The reasons for the decline on diversity were the previous deforestation,the relatively single tree species and the ecological damage caused by cutting shrubs for fuel.更多还原