【摘要】 通过群落调查的方法,对内蒙古太仆寺旗人工草地及围封的天然草地进行调查,研究了不同草地群落在干旱气候影响下的响应机制。结果表明,在干旱胁迫条件下,围封草地群落高度、地上生物量及重要值总体上都优于人工草地,且茎叶比较小,人工草地分蘖数均大于天然草地,人工草地中沙打旺应作为本区草场恢复的首选草种。农牧交错带草地恢复重建中应该以围封和人工草地播种并重,不同地区不同气候条件下应有所侧重。更多还原

【Abstract】 Based on the method of community investigation,natural grassland enclosed and artificial grassland in the Taibus Banner,Inner Mongolia was surveyed,and the response mechanism of grassland community under the influence of arid climate was studied.The results showed that under the intimidation of arid climate,height,net dry biomass above-ground and importance value of natural grassland enclosed is bigger than artificial grassland in total except the ratio of caudex and leaf and tillers,Astragalus adsurgens should be the first choice for the grassland restoration in this area,natural grassland enclosed and establishment of artificial grassland should be put into the same position in the restoration of grassland in the transitional agro-pasture area,and one of them should be emphasized in different areas and climate condition.更多还原