首页 | 本学科首页   官方微博 | 高级检索  
     检索      

黄河源区“黑土型”退化草地人工群落组分配置技术研究
引用本文:马玉寿,尚占环,施建军,董全民,龙瑞军.黄河源区“黑土型”退化草地人工群落组分配置技术研究[J].西北农业学报,2007,16(5):1-6.
作者姓名:马玉寿  尚占环  施建军  董全民  龙瑞军
作者单位:1. 青海省畜牧兽医科学院草原研究所,西宁,810016
2. 兰州大学草地农业科技学院,兰州,730020
摘    要:在黄河源区的“黑土型”退化草地上,以6种多年生禾本科牧草的不同混播处理(A-垂穗披碱草;B-垂穗披碱草+冷地早熟禾;C-垂穗披碱草+冷地早熟禾+中华羊茅;D-垂穗披碱草+冷地早熟禾+中华羊茅+波伐早熟禾;E-垂穗披碱草+冷地早熟禾+中华羊茅+波伐早熟禾+西北羊茅;F-垂穗披碱草+冷地早熟禾+中华羊茅+波伐早熟禾+西北羊茅+短芒老芒麦)进行了连续3 a的群落学试验研究。结果表明,不同混播群落的牧草产量差异极显著(P〈0.01),建植的当年,混播群落牧草产量、草层高度和群落盖度等指标主要受垂穗披碱草和短芒老芒麦等高禾草控制;垂穗披碱草单播群落牧草产量显著高于混播群落(P〈0.01),第2年各群落生长趋势与建植当年基本一致,但混播群落的生长优势已开始显现。第3年,6种牧草混播处理的牧草产量显著高于单播群落(P〈0.01)。不同高、矮禾草的合理配置可有效地优化人工植被的群落结构,遏制单一种建植的快速退化现象,几种多年生禾本科牧草的合理混播配置可能是“黑土型”退化草地进行人工建植恢复的关键技术,是一项快速稳定恢复“黑土型”退化草地植被的重要措施。

关 键 词:黄河源区  "黑土型"退化草地  人工草地  混播群落
文章编号:1004-1389(2007)05-0001-06
收稿时间:2006-12-14
修稿时间:2007-05-10

Studies on Allocate Skills of Artificial Community of "Black Soil Type" Degraded Grassland in the Yellow River Source Region
MA Yu-shou,SHANG Zhan-huan,SHI Jian-jun,DONG Quan-min and LONG Rui-jun.Studies on Allocate Skills of Artificial Community of "Black Soil Type" Degraded Grassland in the Yellow River Source Region[J].Acta Agriculturae Boreali-occidentalis Sinica,2007,16(5):1-6.
Authors:MA Yu-shou  SHANG Zhan-huan  SHI Jian-jun  DONG Quan-min and LONG Rui-jun
Institution:1. Qinghai Academy of Animal and Veterinary Sciences, Xining 810016, China; 2. College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou 730020,China
Abstract:Threey ears observation for Different mixture combinations of sixperennial grasses(A.Elymusnutans,B.Elymusnutans+Poacrymophila,C.Elymusnutans+Poacrymophila+Festucasinensis,D.Elymusnutans+Poacrymophila+Festucasinensis+Festucary loviana,E.Elymusnutans+Poacrymophila+Festucasinensis+Festucary loviana+Poapoiphagorum,F.Elymusnutans+Poacrymophila+Festucasinensis+Festucary loviana+Poapoiphagorum+Elymusbreviaristatus)in "Black Soil Type" degraded grassland of Maqing country,the Yellow River source region was reported in this paper.The result showed that the difference of forage yields among the different mixture communities were very significant.In the planting year,all change of the indexes as forage yield,community height and community coverage were controlled mainly by Elymusnutans and Elymus breviari status,forage yield of Elymusnutans were significantly higher in pure culture than in mixture community,growth trend in the second year was in agreement with that in the planting year, while the dominancy of mixture community started to appear.In the third year,forage yield was significantly higher in mixture than in pure culture.Biomass distribution of different sward with different forage composition had become the stable pyramid structure.So,rationally allocating different perennial grasses in mixture sowing was the key technology in establishing artificial vegetation for "Black Soil Type" degraded grassland in the Yangtze River and Yellow River source region,reaso nable collocation of different tall and low grass varieties optimized effectively community structure,kept singletame pasture from degradation,and was a vital measure to restore "Black Soil Type" degraded grass land quickly and stably.
Keywords:The Yellow River source region  "Black Soil Type" degraded grassland  Tame pasture  Mixture community
本文献已被 维普 万方数据 等数据库收录!
点击此处可从《西北农业学报》浏览原始摘要信息
点击此处可从《西北农业学报》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号