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当前位置: 首页 > 文章 > 围栏与放牧对高山嵩草草甸植物个体形态特征的影响 黑龙江畜牧兽医 2016 (15) 117-119
Position: Home > Articles > Effects of fencing and grazing on individual morphological characteristics of plants in Kobresia pygmaea meadow Heilongjiang Animal Science and Veterinary Medicine 2016 (15) 117-119

围栏与放牧对高山嵩草草甸植物个体形态特征的影响

作  者：
范月君;侯向阳
单  位：
青海畜牧兽医职业技术学院;中国农业科学院草原研究所
关键词：
高山嵩草草甸;植物形态;放牧;个体矮小化;三江源区
摘  要：
为了研究草地利用方式对高寒草地植物个体的影响,对三江源区高山嵩草草甸围栏与放牧植物水平方向(分种盖度)、垂直方向(高度)、营养枝、生殖枝、地上生物量和种子繁殖体重等指标进行综合比较。结果表明:长期放牧条件下优良牧草个体矮小化特征明显,集中体现在盖度下降,生殖枝减少,单株生物量和种子繁殖重下降,毒杂草则不明显。说明放牧因子对于高寒草甸植物具有"修饰"作用。
译  名：
Effects of fencing and grazing on individual morphological characteristics of plants in Kobresia pygmaea meadow
作  者：
FAN Yuejun;HOU Xiangyang;Institute of Grassland Research,Chinese Academy of Agriculture Sciences;Qinghai Vocational and Technical College of Animal Husbandry and Veterinary Medicine;
关键词：
Kobresia pygmaea meadow;;plant morphology;;grazing;;individual undersizedness;;Three-river headwater region
摘  要：
To study the effects of grassland utilization patterns on plant individuals of alpine meadow,the indexes of plants in fencing and grazing Kobresia pygmaea meadows in Three-river headwater region were comprehensively compared,including horizontal direction(species coverage),vertical direction(height),nutrition branches,reproductive branches,aboveground biomass,seed reproductive weight,etc.The results showed that fine individual herbages exhibited a tendency of undersizedness under the condition of long term grazing,which embodied in coverage to be declined,reproductive branches to be reduced,and biomass and seed weight per plant to be decreased.However,poisonous weeds were not obvious.The results indicate that grazing factor plays a‘modified'role in alpine meadow plants.

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