混农林业对鸟类多样性的影响——以四川理县甘家堡为例

The Effects of Agroforestry on Diversity of Birds——Taking Ganjianbao of Lixian County in Sichuan as an Example

混农林业是生态农业的一种模式。为了解混农林业改造对生物多样性的影响,以鸟类为研究对象,于2015年至2017年在四川理县甘家堡混农林业示范区内设置了9个样点,考察了鸟类多样性和鸟类组成的变化。结果表明混农林地改造后样地内鸟类物种丰富度和鸟类丰度较改造前均有显著上升,森林和灌丛鸟类组份也较改造前有所上升。说明混农林业能够有效提高鸟类多样性,对区域生物多样性恢复和生态系统的改善有明显作用。

Agroforestry is one type of the ecological agriculture. Using birds as indicators,the diversity and composition of birds were investigated by setting 9 sampling points in Ganjiabao Agroforestry Demonstration Sites,which is located in Lixian,Sichuan Province,from 2015 to 2017. The results showed that both richness and abundance of birds increased significantly after the land transformed to agroforestry system.The proportion of forest birds and bush birds,meanwhile,also increased. It suggested that the system of agroforestry could increase the diversity of birds,and thus contributed to the recovery of local biodiversity and the restoration of ecosystem significantly.