| 黑麦草-白三叶人工草地退化趋势研究 |
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| 引用本文： | 张建波,李相林,万里强,陈瑞祥,赵相勇,陈伟,陈国南.黑麦草-白三叶人工草地退化趋势研究[J].农业科学与技术,2009,10(1):26-28,88. |
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| 作者姓名： | 张建波 李相林 万里强 陈瑞祥 赵相勇 陈伟 陈国南 |
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| 作者单位： | 张建波,陈瑞祥,赵相勇,陈伟,ZHANG Jian-Bo,CHEN Rui-xiang,ZHAO Xiang-yong,CHEN Wei(贵州省草业研究所,贵州独山,558200);李相林,万里强,LI Xiang-lin,WAN Li-qiang(中国农业科学院北京畜牧兽医研究所,北京,100094);陈国南,CHEN Guo-nan(贵州省饲草饲料工作站,贵州贵阳,550001)
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| 基金项目： | 科技部科技支撑计划项目，贵州省基金 |
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| 摘 要： | 1材料与方法
1．1野外调查方法
采用随机取样法选择利用方式和地形不同的草地（A．羊舍附近；B．坡顶；C．山坡下平地；D．山坡）进行调查。用1m×1m的样方取样，在每种样地取样10个，共计40个。调查内容有盖度、种名、高度、频度、密度和地上现存量，调查方法如下：①高度。每种植物随机选取5个个体，测定其营养枝自然直立高度，记录算术平均值和最高值；有生殖枝的，还需测定生殖枝自然直立高度。
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| 关 键 词： | 草地退化 白三叶 黑麦草 人工 野外调查方法 地上现存量 算术平均值 取样法 |
Study on the Degradation Trend of Ryegrass-White Clover Artificial Grassland |
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| ZHANG Jian-Bo,LI Xiang-lin,WAN Li-qiang,CHEN Rui-xiang,ZHAO Xiang-yong,CHEN Wei,CHEN Guo-nan.Study on the Degradation Trend of Ryegrass-White Clover Artificial Grassland[J].Agricultural Science ＆ Technology,2009,10(1):26-28,88. |
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| Authors: | ZHANG Jian-Bo LI Xiang-lin WAN Li-qiang CHEN Rui-xiang ZHAO Xiang-yong CHEN Wei CHEN Guo-nan |
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| Institution: | 1. Guizhou Institute of Prataculture, Dushan 558200 ;2. Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100094; 3. Forage and Fodder Station of Guizhou Province, Guiyang 550001) |
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| Abstract: | Objective] The study aimed to explore the degradation law and trend of artificial grassland. Method] Taking the ryegrass (Lolium perenne)-white clover (Trifolium repens) artificial grassland in Maiping Township, Guizhou Province as the research object, the grassland vegetation of 40 quadrats from different areas (area around the sheep shed, hilltop, hillside, flatland at the foot of the hill) were analyzed by comparing the dominance and richness index. Result] Degradation of different degrees appeared in various areas of this artificial grassland. To be specific, the degradation of grassland around the sheep shed was not serious for less consumption by the sheep; however, the areas on the hilltop and hillside degenerated to the grassland types of dallis grass (Paspalum dilatatum Poir.)-Indian lovegrass (Eragrostis pilosa) and dallis grass-cogongrass Imperata cylindrica (Linn.) Beauv.], respectively, and the area at the foot of the hill degenerated to the grassland type dominated by garland chrysanthemum (Chrysanthemum coronarium L.) and knotgrass (Paspalum distichum L.). Conclusion] This study provided a basis for grassland improvement as well as the efficient and sustainable utilization of grazing-type artificial grassland in South China. |
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| Keywords: | Ryegrass (Lolium perenne) White clover(Trifolium repens) Artificial grassland Degradation |
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