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首页> 外文期刊>Animal Science Journal >The distributions of Chinese yak breeds in response to climate change over the past 50 years
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The distributions of Chinese yak breeds in response to climate change over the past 50 years

机译:近50年来中国in牛品种的分布对气候变化的响应

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摘要

The effects of prior climate change on yak breed distributions are uncertain. Here, we measured changes in the distributions of 12 yak breeds over the past 50 years in China and examined whether the changes could be attributed to climate change. Long-term records of yak breed distribution, grey relational analysis, fuzzy sets classification techniques and attribution methods were used. Over the past 50 years, the distributions of several yak breeds have changed in multiple directions, mainly shifting northward or westward, and most of these changes are related to the thermal index. Driven by climate change over the past years, the suitable range and the distribution centers of certain yak breeds have changed with fluctuation and have mainly shifted northward, eastward or southward. The consistency of observed versus predicted changes in distribution boundaries or distribution centers is higher for certain yak breeds. Changes in the eastern distribution boundary of two yak breeds over the past 50 years can be attributed to climate change.
机译:先前的气候变化对牛品种分布的影响尚不确定。在这里,我们测量了过去50年中国12种12牛品种的分布变化,并研究了变化是否可以归因于气候变化。使用records牛品种分布的长期记录,灰色关联分析,模糊集分类技术和归因方法。在过去的50年中,几种牛品种的分布在多个方向发生了变化,主要是向北或向西移动,这些变化中的大多数与热指数有关。在过去几年的气候变化的驱动下,某些牛品种的适宜范围和分布中心随波动而变化,并且主要向北,向东或向南移动。对于某些牛品种,观察到的与预测的分布边界或分布中心变化的一致性较高。在过去的50年中,两个牛品种东部分布边界的变化可以归因于气候变化。

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