不同水位梯度下引种芦苇生长特征变化研究  

Study on growth characteristics of introduced reed under different water level gradient

作　　者：陈向全 何彤慧 周楠[3] 苏銮勇 崔乔 冯艳琼 何玉实 Chen Xiangquan;He Tonghui;Zhou Nan;Su Luanyong;Cui Qiao;Feng Yangiong;He Yushi(Key Laboratory of Northwest Degraded Ecosystem Restoration and Reconstruction,Ministry of Education,Ningxia University,Yinchuan 750021;State Key Laboratory breeding base jointly built by provincial and Ministry of Land Degradation and Ecological Restoration in Northwest China,Ningxia University,Yinchuan 750021;Wuzhong Wetland Protection and Management Center,Wuzhong 751100)

机构地区：[1]宁夏大学西北退化生态系统恢复与重建教育部重点实验室,宁夏银川750021 [2]宁夏大学西北土地退化与生态恢复省部共建国家重点实验室培育基地,宁夏银川750021 [3]吴忠湿地保护管理中心,宁夏吴忠751100

出　　处：《农业科学研究》2020年第4期36-39,共4页Journal of Agricultural Sciences

基　　金：宁夏回族自治区林业和草原局资助项目([2017]10号);宁夏阅海湿地典型退化区域水生态修复技术与示范(2018BFG02001)。

摘　　要：以芦苇为研究对象进行野外种植实验,设计4个水深梯度,通过挖低补高形成4个面积分别为10 m×20 m的岛状实验样地,样地之间形成一空水位梯度,枯水期岛面分别高出水面80 cm(D1)、60 cm(D2)、40 cm(D3)、20cm(D4)、岛屿高度差距20 cm。对不同水深梯度下芦苇株高、株径、成活株数、盖度、节间数、展叶数等生长指标数据进行相关性分析,研究水深和水位涨幅变化下芦苇株高的变化,发现芦苇株高增长量与水深和水位涨幅具有紧密的关系,进一步研究表明:(1)单月水位涨幅越大单月生长量越大,一是水文条件和植物生长随季节同步变化的结果,二是芦苇作为水生植物生长期需要水分补充。(2)适宜于芦苇生长的水深为10~45 cm。During the dry season,4 water depth gradients were designed,the island surface was 80 cm(D1),60 cm(D2),40 cm(D3),20 cm(D4)above the water surface,and the island height difference was 20 cm.Under different water depth gradient of reed,plant height,stalk diameter,survival number,coverage,internode number and the number of exhibition leaf growth index data for correlation analysis,research the depth of the water and the water level or the change of the reeds on the change of the plant height,found a reed growth in plant height and depth of the water and water level rise has a close relationship,further research shows that:(1)the monthly water level rise,the greater the monthly growth rate,the greater the a hydrological conditions and plant growth is the result of the change with the seasons,the second is a reed as aquatic vegetation growth need to supplement moisture(2)is suitable for the growth of the reed depth is 10~45 cm.

关 键 词：芦苇 水位梯度 生长状况 引种 

分 类 号：S564.2[农业科学—作物学]