内蒙古锡林河流域羊草草原净初级生产力及其对全球气候变化的响应 关键词 羊草草原 气候变化 地上净初级生产力 CENTURY模型 [gap=2032]Key words：Leymus chinensis steppe；climate change；ANPP；CENTURY model
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But recently many steppes became saline-alkali and ecological environment has been destroyed because of the incorrect using of Leymus chinensis steppe.
但是由于近年来对羊草草原的不合理利用,造成大面积盐碱化,破坏了草原生态环境。
参考来源 - 松嫩不同盐碱化羊草草原羊草叶片蛋白质积累特性·2,447,543篇论文数据，部分数据来源于NoteExpress
结果表明，羊草草原年降水以及月降水的年际波动明显；
Our results showed significant differences in annual and seasonal precipitation patterns.
采用灰色系统中灰色关联度的分析方法对羊草草原放牧绵羊日增重的气象限制性因素进行了研究。
The analytic method of gray incidence degree in gray system was employed to study the relationship between daily gain of grazing sheep and restrictive factors.
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