【摘要】 2004年4~9月,采用线路调查、抽样调查、标本采集等方法,对北京市蒲洼自然保护区的植被和物种进行了不同季节的调查,以期对现存野果资源进行评价,指导开发利用。调查结果:极危种1种、濒危种2种、近危种4种、安全种18种。对濒危系数EI>0.5的物种,严禁开发利用,对EI<0.5的一些安全种和使用价值较大的物种提倡重点开发。更多还原

【Abstract】 The survey on forest cover and species of Puwa nature reserve of Beijing in different seasons had been conducted by the methods in term of routine survey,sampling survey and specimen comlection survey from April to September in 2004,to expect an evaluation on current wild fruit resources,and to guide the development and utilization.The outcome of survey showed that there was 1 most endangered species,2 endangered species, 4 easy to endangered species and 18 safety species.For those species with endangered coefficient EI>0.5 are prohibited to develop & use;and those with coefficient EI<0.5 are suggested to prior develop.更多还原