The best sowing time of Haloxylon ammodendron in the east of Helan Mountain in Ningxia autonomy is studied.
目的：研究确定宁夏贺兰山东麓梭梭育苗的适宜播种期。
The transpiration rate of degenerated H. ammodendron increases in the form of power when the temperature increases.
退化梭梭的蒸腾速率随着温度的增加以乘幂的形式增加。
At the center of haloxylon ammodendron, the content of soil element was higher than other regions, and displayed"fertile island"and"salinity island".
研究区梭梭中心各土壤要素含量均高于周围，表现出“肥岛”和“盐岛”特征；
The results showed that the species of H. ammodendron community was the richest on low-lying land, the second on slow and gentle desert, and the least on semi-mobile dune.
结果表明，以平缓低洼地上梭梭群落的植物种类最丰富，其次是平缓沙地，半流动沙丘上的植物种类最少。
The results showed that the species of H. ammodendron community was the richest on low-lying land, the second on slow and gentle desert, and the least on semi-mobile dune.
结果表明，以平缓低洼地上梭梭群落的植物种类最丰富，其次是平缓沙地，半流动沙丘上的植物种类最少。
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