伊犁绢蒿荒漠不同退化阶段草地经济性状演变的分析  

Analysis of economic character evolvement of the desert grassland of Seriphidium transillense in different degenerate stages

作　　者：朱进忠[1] 吴咏梅[1] 

机构地区：[1]新疆草地资源与生态重点实验室新疆农业大学草业工程学院,新疆乌鲁木齐830052

出　　处：《草业科学》2005年第10期1-6,共6页Pratacultural Science

基　　金：国家科技攻关计划专项"草地退化鉴定与治理技术体系的研究"资助

摘　　要：对不同退化阶段伊犁绢蒿Seriphidium transillense荒漠草地的主要经济性状特征进行了调查与分析。结果表明,草地由未退化阶段演替至重度退化和极度退化阶段,草地的植物种类组成、群落高度、盖度、生产力、营养价值均发生了一系列变化;植物种类减少,高度、盖度、生产力下降,饲用价值处于一个劣变过程,表现出牧草的家畜适口性较差,利用率低,由良等牧场演变为中低等牧场。Main economic character of the desert grassland of Seriphidium transillense is investigated and analyzed under different degenerate stages, result shows that the Seriphidium transillense desert grassland evolves from undegenerate stage to serious degenerate stage, extremely degenerate stage;a series of changes in composition of plant species, community height, coverage, yield of grassland has taken place; plant species decreased, the plant height, coverage, yield declined, value of feeding is descended~ showing worse forage rat- ing, lower utilization and the evolvement from good pasture to middle-low pasture.

关 键 词：退化阶段 草地经济性状 变化 

分 类 号：S812[农业科学—草业科学]