广东果园生物多样性利用与生态农业模式概述

分析了广东省果园利用的现状，指出全省果园利用中存在单一化种植尧病虫害多尧农药使用多尧循环产 业链短尧土地利用效率低尧外来入侵生物多尧土壤退化尧水土流失严重等问题。在此基础上，分别从结构尧效益以及地 域分布等方面阐述了当前广东省果园利用的典型生态模式，如野猪-沼-果冶模式尧野林-果-草-鱼冶模式尧野果-草-禽 （牧）冶模式尧果园养蜂模式尧果园套种蔬菜尧食用菌模式以及果园间作花生尧牧草模式等。

Brief introduction of biodiversity utilization and ecological farming models in orchards in Guangdong province

The orchard production situation in Guangdong province was analyzed and the related problems, including mono-planting, frequent outbreaking of diseases and insect pests and more chemical pesticide inputting, short production chain and low land use efficiency, more invasive alien species, soil degradation, serious water loss and soil erosion were pointed out as well. Moreover, some typical ecological utilization models in orchards, such as pig-biogas-fruit model, forest-fruit tree-grass-fish model, fruit-grass-livestock model, bee-keeping in orchard model, and intercropping models between fruit trees and vegetables, edible mushrooms, peanuts, pasture grasses respectively were analyzed and introduced from aspects of farming system structure, ecological benefits and application distribution.