| 中国西南地区的草地资源分析 |
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| 引用本文： | 皇甫江云,毛凤显,卢欣石.中国西南地区的草地资源分析[J].草业学报,2012,21(1):75-82. |
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| 作者姓名： | 皇甫江云 毛凤显 卢欣石 |
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| 作者单位： | 1.北京林业大学林学院,北京 100083;2.贵州省饲草饲料工作站,贵州 贵阳 550001;3.贵州省畜牧技术推广站,贵州 贵阳 550001 |
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| 基金项目： | 国家科技支撑项目，国家肉羊产业技术体系黔南综合试验站项目资助 |
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| 摘 要： | 根据中国草地资源调查资料(农业部畜牧兽医司,1996)、中国草业统计(2009)和相关文献,在实地调查的基础上,以中国西南地区的天然草地资源、冬闲田资源、林间草地为研究对象,分析了中国西南地区的草地资源状况。结果表明,1)西南地区天然草地总面积35.58×106 hm2,占该区域土地总面积的32.59%,可利用草地面积29.04×106 hm2,各省可利用草地面积占天然草地面积比例都在70%以上;2)按照以服务畜牧业为主要原则,将天然草地资源划为4个区域:热带湿润灌草丛区、亚热带湿润灌草丛区、亚热带半湿润灌草丛区和高原温带湿润灌丛草甸区;3)西南地区岩溶面积达52.23×106 hm2,占土地面积的29.50%,共有292个岩溶县。石漠化面积达11.11×106 hm2,占岩溶面积的21.27%,有88个石漠化严重县;4)西南地区农闲田可利用面积为961.46×104 hm2,农闲田已利用面积为193.11×104 hm2,占农闲田可利用面积的20.09%。冬闲田种草已利用面积共计118.58×104 hm2,占农闲田可利用面积的12.33%,占农闲田已利用面积的61.40%。5)西南地区灌丛、疏林草地面积合计为1 894.84×104 hm2,占草地面积的29.81%,占可利用草地面积的36.06%。
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| 关 键 词： | 西南地区 草地资源 天然草地 石漠化 冬闲田 |
Analysis of grassland resources in southwest China |
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| HUANGFU Jiang-yun
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MAO Feng-xian
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LUX in-shi.Analysis of grassland resources in southwest China[J].Acta Prataculturae Sinica,2012,21(1):75-82. |
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| Authors: | HUANGFU Jiang-yun MAO Feng-xian LUX in-shi |
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| Institution: | 1.Forestry College, Beijing Forestry University, Beijing 100083, China; 2.Forage and Feed Station of Guizhou Province, Guiyang 550001, China; 3..Animal Science and Technology Station of Guizhou, Guiyang 550001, China |
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| Abstract: | Based on a rangeland resources survey of China(Branch of Animal Husbandry and Veterinary Services affiliated to the Agricultural Department of China,1996),grassland statistics of China(2009) related literature and field investigations,the natural grassland resources,winter-fallow paddy fields and forest grassland were studied.1) The natural grassland area in southwest China was 35.58×106 ha(32.59% of the total land area).Available grassland area was 29.04×106 ha(>70% of the total natural grassland area).2) Grassland resources types were divided into four regions: tropical humid shrubby tussock region,subtropical humid tussock region,subtropical subhumid tussock region,temperate humid plateau tussock meadow region.3) The Karst area of southwest China was 52.23×106 ha(29.50% of the land area),covering 292 counties.The rocky desertification area was 11.11×106 ha(21.27% of the karst region),covering 88 severely rocky desertification counties.4) The available farming-fallow crop area was 961.46×104 ha,and the utilized farming-fallow crop area was 193.11×104 ha(20.09% of the available farming-fallow crop area).Utilized winter-fallow paddy field grassland area totaled 118.58×104 ha(12.33% of the available farming-fallow crop area and 61.40% of the utilized farming-fallow crop area).5) Shrubby tussock and sparse forest tussock of southwest China was 1 894.84×104 ha(29.81% of the grassland area and 36.06% of the available grassland area). |
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| Keywords: | southwest China grassland resources natural grassland rocky desertification winter-fallow paddy fields |
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