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应用生态学报 ›› 1996, Vol. 7 ›› Issue (s1): 51-56.

• 研究论文 • 上一篇    下一篇

江滩林农复合生态系统与钉螺分布关系的研究

张家来1, 刘立德1, 黄闰泉1, 熊晓姣1, 冯延寿2, 余焱生2, 魏天钦3, 覃金平3   

  1. 1. 湖北省林业科学研究院, 武汉430075;
    2. 湖北省黄州市李家洲林场, 黄州436100;
    3. 湖北省公安县林业局, 公安434301
  • 收稿日期:1995-03-20 修回日期:1995-10-10 出版日期:1996-12-25 发布日期:1996-12-25
  • 基金资助:

    林业部、卫生部"八五"科技攻关项目"湖北省以林为主兴林灭螺综合治理与开发三滩"课题部分内容

Distribution of Oncomelunia hupensis in various silvi-agricultural ecosystems on river beach

Zhang Jialai1, Liu Lide1, Huang Runquan1, Xiong Xiaojiao1   

  1. Hubei Academy of Forestry Wuhan 430075
  • Received:1995-03-20 Revised:1995-10-10 Online:1996-12-25 Published:1996-12-25

摘要: 对江滩林农复合生态系统中钉螺消长研究表明,钉螺分布与林地地下水位密切相关,当地下水位为20~40cm时,钉螺分布密度最大,当地下水位<1.55cm或>75.7cm时,钉螺密度趋向于零.林地钉螺分布密度受长江汛期的影响,淹水100d以内淹水时间越长,钉螺分布密度越大.在36种供研究的植物中,与钉螺呈显着负相关的种类有益母草、问荆、打碗花、酸模叶蓼、紫云英等5种,与钉螺呈显着正相关的种类有鸡矢藤、水芹2种.

关键词: 地下水位, 地表淹水时间, 林下植物, 钉螺, 颗粒有机碳, 氮沉降, 磷添加, 水溶性有机碳

Abstract: The study shows that the distribution of Oncomelunia hupensis is closely related with theunderground water level in forest land. O.hupensis has a maximum density,when the underground water level is 20~40 cm, and approaches to zero when the level is<1.55 cmor >75.7 cm. Its density in forest land is also affected by the flooding period of Changjiang River. Within a period of 100 inundated days, the longer the inundated time,the greater the O.hupensis density. Among 36 species of grass in herb layer, Lecnurks heterophgllas, Equisetum arvellse, Calystegia hederacea, Polygonum lapathifolium and Astragalas sinicus are negatively, and Roedria scandens and Oenanthe javanica are positively correlated with the density of O.hupensis.

Key words: Underground water level, Inundated time, Grass in herb layer, Oncomelunia hupensis, nitrogen addition, particulate organic carbon, water-soluble organic carbon, phosphorus addition