| 蒲金,姚小英,尹东,汪丽萍,姚晓红.关山南麓地区牧草生产潜力对气候变化的响应[J].干旱地区农业研究,2006,(6):129~132 |
| 关山南麓地区牧草生产潜力对气候变化的响应 |
| Response of grass productivity potential to climate changing in south of Guanshan |
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| DOI：10.7606/j.issn.1000-7601.2006.06.29 |
| 中文关键词: 关山南麓 牧草生产潜力 气候变化响应 |
| 英文关键词:south of Guanshan grass productivity potential climate changing responding |
| 基金项目:兰州区域气象中心应用气象开放实验室课题； “西北农作物对气候变化的响应及其评价方法”课题(2005DIB3J100) |
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| 中文摘要: |
| 应用1971~2005年天水市关山南麓清水、张川两县的气象及牲畜存栏数资料,用数理统计方法,分析关山南麓的气候变化规律,计算牧草的气候生产力,并回顾分析该地羊畜饲养量的变化情况。结果显示:近35 a关山南麓地区年平均气温升高了0.7~0.8℃,前30 a年均降水量减少了50 mm;牧草生产的主要气象限制因子是降水量,牧草的热量气候生产力增加了3 080 kg/hm2,降水生产力减少了841 kg/hm2。水热条件匹配不好,实际生产力下降。畜牧业的初级生产力达到或接近载畜量的极限,今后关山地区的畜牧业的发展应定位在畜牧产品的精细加工及深化利用上。 |
| 英文摘要: |
| Based on meteorological data of Qingshui and Zhangchuan weather station and the cattle population of these two counties,the law of climatic variation had been analyzed with mathematical statistic method,the grass climate productive potential had been calculated and the variation of cattle population had been reviewed.The results show that the annual mean temperature rose by 0.7～0.8℃ during last 35 years,the precipitation reduced by 50 mm in last 30 years.The main meteorological limit factor of forage grass production was precipitation,the thermal productive potential increased by 3 080 kg/hm2,and the precipitation productive potential reduced by 841 kg/hm2.The thermal and water did not match well during the period of grass growth,and the really productivity is coming down. The primary livestock productivity almost approached its limit in south of Guanshan.The next step of livestock develop of Guanshan should lie in fine processing and making full use of livestock product. |
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