| 李萍,杨改河,冯永忠.西藏一江两河地区农牧复合生态系统结构分析[J].干旱地区农业研究,2007,(3):180~184 |
| 西藏一江两河地区农牧复合生态系统结构分析 |
| Analysis of the structure of compound agriculture-herding ecological system in the YLN Region of Tibet |
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| DOI：10.7606/j.issn.1000-7601.2007.03.38 |
| 中文关键词: 西藏一江两河 农牧复合 系统结构 |
| 英文关键词:the "YLN" Region of Tibet compound agriculture-herding structure of ecological system |
| 基金项目:国家重大基础预研项目(2005CCA05300) |
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| 中文摘要: |
| 利用实地调查,文献分析的研究方法,分析西藏一江两河地区种植业结构和畜牧业结构。结果表明:种植业结构已由粮经二元结构变为粮经饲三元结构;畜牧业结构变化幅度不大;该区农牧复合系统内“粮食作物以谷物占绝对比重,经济作物以油菜为主,均表现出明显的单一性;畜种结构单一,为牛、羊占绝对比重的草食型畜群结构”。结构调整建议为:降低粮食作物特别是麦类作物的播种面积,增加经济作物尤其是蔬菜和水果及饲料作物的播种面积,使粮经饲比达到50∶20∶30;引草入田,推广粮草轮作制度;增加猪及禽类的饲养量,逐步建立耗粮型与草食型相结合的畜种结构的建议。 |
| 英文摘要: |
| The article analyzed the planting structure and animal husbandry structure in the "YLN" Region of Tibet by means of survey practically and analyze document.Result showed: the animal husbandry structure has little change.The planting structure has been converted from the duality of "food crop-economics crop" to the triplicity of "food crop-economics crop-forage crop".Several problems were be found in the compound agriculture-herding ecological system of this area: The grain crop is the dominant crop in cereals structure,while rape is dominant crop in economic crop,both are very single;the structure of animal husbandry is also monotonous,it's dominated by grass eating animal such as sheep and cattle.Based on the results,this article suggested: reduction the acreage of food crops,especially wheat crops;increasing economics crops acreage,particular vegetable and fruit and fodder crops acreage,adjust the proportion of "food crop-economics crop-forage crop" to 50∶20∶30;Planting grass fields,promotion of forage rotation system;increase the volume of pig and poultry farmers.Gradually establish a grain-eating and plant-consuming combination livestock herding structure. |
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