白头鹤在升金湖上湖越冬期环境容纳量的研究  

ENVIRONMENTAL CARRYING CAPACITY FOR OVER -WINTERING HOODED CRANES IN SHENGJIN LAKE

作　　者：刘政源 徐文彬 王岐山[2] 施葵初[3] 许佳水 俞贵庆 

机构地区：[1]升金湖国家级自然保护区,安徽东至县247231 [2]安徽大学生命科学学院,安徽合肥市230039 [3]安徽省林业厅自然保护站,安徽合肥市230001 [4]安徽省池州市林业局,安徽池州市247100

出　　处：《长江流域资源与环境》2001年第5期454-459,共6页Resources and Environment in the Yangtze Basin

基　　金：中国野生动物保护协会资助项目

摘　　要：1996～ 1998年 ,在北纬 30°15′～ 30°30′ ,东经 115°5 5′～ 117°15′之间的中国安徽升金湖 ,我们对来此越冬的白头鹤 (Grusmanacha)进行了越冬期环境容纳量研究 ,结果表明 :白头鹤在升金湖上湖越冬期的主要食物苦草及蚌类的储藏量 ,经初步测算两者共有 5 9.2t ,折算能量分别为 1.5 11×10 8kJ与 1.6 95× 10 8kJ ,折算总能量为 3.170× 10 8kJ按每只白头鹤在升金湖越冬期为 145d ,越冬期日粮为 6 95 g ,折算消耗能量72 2 1.7kJ计算 ,上湖可容纳白头鹤种群数量的理论值是 30 2只。同时 ,环境因子的变化 ,如降水量、湿度及人为活动是影响白头鹤在升金湖越冬种群数量发生变动的主要原因。控制人为活动 。The environmental carrying capacity for over wintering hooded carans \$Grus manacha\$ was investigated in Shengjin Lake of Anhui province,China for a period from 1996 to 1998.The major food composition of the bird at the upper lake was eel grass Vallisneria spirals and shellfish,with the biomass of about 59.2 ton each year.Providing that each crane stays in the lake for 145 days each year and consumes 520 g per day,the theoretical values of the environmental carrying capacity of the upper lake was 302 cranes each year.The change of environmental factors,such as precipitation,humidity and human activity were the main factors influencing the amount of over wintering cranes in the area.To control human activity and to keep a suitable water level are to two major measures for maintainng a stable over wintering population.

关 键 词：白头鹤 升金湖上游 环境容纳量 越冬期 动物种群 数量变动 

分 类 号：X26[环境科学与工程—环境科学] X835