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2005年度,根据农业部草地监理中心安排及任务要求,贵州省草地监理站组织省内有关专家,对贵州省天然草地资源进行了全面调查和分析.通过调查指出了贵州草地资源的现状及存在的主要问题,并有针对性地提出了合理开发利用贵州省草地资源的有效途径与对策,为今后贵州省草地畜牧业生产提供了科学依据. 相似文献
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黑麦草-白三叶人工草地退化趋势研究(英文) 总被引:2,自引:0,他引:2
[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. 相似文献