摘要
通过对湖北黄冈市黄州区长江外滩抑螺防病林实地调查及试验,比较分析不同林龄的意杨林中郁闭度、物种组成、物种数量特征、物种多样性指标等因素的差别,并结合投螺试验,综合分析各林龄不同环境条件对钉螺生存的影响,比较不同林龄抑螺效果.结果表明:抑螺防病林随着林龄的增长,林内郁闭度逐渐增大,物种数目增多,土壤湿度增大,物种多样性和丰富度增加.投螺试验表明:林龄越大的样地中,钉螺死亡率越小,钉螺更适宜生存于林龄较大的意杨林中.针对以上情况,提出了林下间作、嵌合栽种对钉螺有抑制作用的植物等措施.
Through the investigations and trials on the spot of snail control and schistosomiasis prevention forest on beach land along Yangtze River in Huangzhou District Huanggang City Hubei Province, distinction of canopy density, species composition, quantity characteristics of species, species diversity and other factors in different age poplar forest were compared and analysised. Combined with the importing snail experiments, the influence of different environmental conditions in certain age of forest to the survival of the snail was syntheticly analysised, snail control effect of different age of forest was compared. The results showed：with the growth of forest age, canopy density was gradually increasing, the number of species, soil moisture, species diversity and richness increased. Importing snail experiments showed： the elder the age of forest, the smaller the snails mortality. Snail was more suitable for survival in the elder forest. For the above, intercropping,plant snail preventive plant and other measures were proposed.
出处
《湖北大学学报（自然科学版）》
CAS
北大核心
2009年第1期82-85,共4页
Journal of Hubei University：Natural Science
基金
国家自然科学基金(30671818)
国家"十一五"林业科技支撑项目(2006BAD03A15)资助
关键词
抑螺防病林
林龄
群落特征
物种多样性
snail control and schistosomiasis prevention forest
forest age
community characteristic
species diversity
