当前位置: 首页 > 文章 > 施肥、灌溉对切根改良草地群落的影响 中国草地学报 2016,38 (1) 81-86
Position: Home > Articles > Effect of Fertilizing and Irrigation on Grassland Improved by Cutting Root Chinese Journal of Grassland 2016,38 (1) 81-86

施肥、灌溉对切根改良草地群落的影响

作  者:
张俊刚;姜慧敏;李雅茹;宝音陶格涛
单  位:
内蒙古大学生命科学学院;内蒙古自治区环境监测中心站
关键词:
草地改良;切根;施肥;灌溉
摘  要:
在切根草地上进行了施肥、灌溉、施肥+灌溉三种不同处理,并于生长季高峰期(8月中旬)对各处理样地的群落特征、生物量、多样性等指标进行了测定,结果表明:各处理均可提高切根草地群落生产力,改善群落结构,改良的效果依次为施肥+灌溉>灌溉>施肥,其中施肥+灌溉处理群落地上生物量和羊草地上生物量增产幅度分别达33.73%和71.04%(P<0.05);各处理群落主要物种种群密度与多样性指数呈显著或极显著的线性相关(正相关或负相关)。
译  名:
Effect of Fertilizing and Irrigation on Grassland Improved by Cutting Root
作  者:
ZHANG Jun-gang;JIANG Hui-min;LI Ya-ru;BAOYIN Taogetao;College of Life Science,Inner Mongolia University;Inner Mongolia Centre Station of Environmental Monitoring;
关键词:
Grassland improvement;;Root cutting;;Fertilizer;;Irrigation
摘  要:
A study including three treatments(fertilizing,irrigation and fertilizing+irrigation)was conducted in a grassland improved by cutting root.In each treatment,the community characteristics,biomass and species diversity indexes were measured in the peak growing season(mid August).The results showed that each treatment could improve the community structure with a positive effect on the productivity of grassland improved by root cutting,the improving effects were in order as fertilizing+irrigation>irrigation>fertilizing.The treatment of fertilizing+irrigation significantly increased the community aboveground biomass and L.chinensis aboveground biomass by 33.73% and 71.04%,respectively(P<0.05).In each treatment,density of main species in community was significantly or extremely significantly correlated with diversity index.

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