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요약정보
气候变化对草原生产力的影响 / Impact of climate change on grassland productivity
Resource Type
Academic Journal
Authors
张连云
;
魏晓军
;
李洪波
;
张培青
;
卢强
;
ZHANG Lianyun
;
WEI Xiaojun
;
LI Hongbo
;
ZHANG Peiqing
;
LU Qiang
Source
草原与草业 / Grassland and Prataculture
. 34(2):35-41
Subject
气候变化
气温
降水量
蒸发量
草原生产力
Thomthwaite模型
Language
Chinese
ISSN
2095-5952
Online Access
Find it @ DONGA
초록
为了从气候变化的角度分析鄂尔多斯草原气候特征和气候变化规律,将"草——畜"这一复合体有机的串联起来,分析其受到的影响,探讨历年来鄂尔多斯牧草种类及草产量的变化、草地生产潜力的变化等,本文采用了文献解析法、实例剖析法等对鄂尔多斯近50年来的气温变化特征、降雨特征、蒸发量特征进行了分析总结,探讨气候变化对牧草、家畜和畜牧业生产造成的影响,通过Thomthwaite模型计算气候与牧草生产力的关系,从而得到牧草生产力的相关数据为科学畜牧生产提供数据支持.结果表明:1.鄂尔多斯年均气温呈现规律递增趋势,冬季和夏季在气候变暖的大环境下存在较大的季节变化差异性;鄂尔多斯历年来降雨量基本保持一致性,但在1980年代7月降水量比较明显,1990年之后该地区降雨量下降,夏季2000年之后降水量大幅下降,蒸发量除了有个别年份相比上年较高,但整体逐年下降;草场牧草产量及质量变差,出现局部地区干旱问题;2.鄂尔多斯草原牧草生产力受温度因子、降水量因子和蒸发量因子的作用明显,温度变化与牧草生产力负相关,降水与牧草生产力正相关.
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