The sensitivity of parameters on water budget in different forest and grass ecosystems were studied using single-dimensional sensitivity analysis.
采用单因素参数敏感性分析方法，研究了林草系统水量平衡的的参数敏感性。
The fires are burning mostly grass and shrub land, ecosystems that are adapted to fire, says the Comisión Nacional Forestal (CONAFOR, Mexico’s National Forest Service).
国家森林局的相关人员说这场大火燃烧的主要是草地和灌木林地，生态系统并不会因为这种大火而受影响。
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