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ephemerals相关的网络例句

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The results showed the seeds of ephemerals mainly distributes in 0- 5 cm soil and there are few seeds under the 5 cm soil.

结果表明:短命植物种子主要集中分布于地表0~5cm土壤中,5cm以下土壤中极少存在有活力的种子;沙丘间及沙丘不同部位的种子库密度大小不同,密度自坡底随高度增加逐渐减少,坡底、坡中部及坡顶部密度分别为124粒/m^2、91粒/m^2、66粒/m^2。

This study selected the ephemerals which grow in the Gurbantunggut Desert Area as the object of the study, which is based on the field sampling and the bourgeoning experiment in laboratory, The distributing , bourgeoning status,density, diversity of the soil seed banks and its relationship with vegetation showed in this area sand dunes were studied.

采用野外定点取样和室内萌发相结合的试验方法,研究了短命植物在沙丘不同部位的空间分布、萌发状况、密度、物种多样性及土壤种子库生物多样性与地上植物多样性的关系。

Aims Spring ephemerals characterized by very short-term growth rhythm and specific biological traits in the Junggar Desert of China play an important role in succession of the desert plant community, maintenance of the desert biological diversity and conservation of water and soil in desert.

准噶尔荒漠分布的早春短命植物不仅具有十分独特的生物学特点,而且在荒漠植物群落演替、物种多样性维持及土壤改良与防治水上流失等方面具有重要的生态学价值。

The correlation was attributed to the three types of plants:(1) the ephemerals plants;(2) the plants that had the transient soil seed bank or the aerial seed bank;(3) the plants of mainly vegetative propagation.

土壤种子库特征以及与地上植被的关系主要受以下几种植物的影响。1。短命植物;2。仅形成短暂种子库或是大部分时间形成空中种子库或土壤外种子库的植物;3。种子繁殖能力弱而营养繁殖能力很强的植物。

The results showed the seeds of ephemerals mainly distributes in 0~5 cm soil and there are few seeds under the 5 cm soil.The density of the seed banks is different among the different parts of the sand dune.The density decreases gradually from the foot to the top.

结果表明:短命植物种子主要集中分布于地表0~5 cm土壤中,5 cm以下土壤中极少存在有活力的种子;沙丘间及沙丘不同部位的种子库密度大小不同,密度自坡底随高度增加逐渐减少,坡底、坡中部及坡顶部密度分别为124粒/m2、91粒/m2、66粒/m2。

The density of the foot 、middle part and top are 124grain /m~2、91 grain /m~2、66 grain /m~2,the seeds is more little windward than the leeward.The density of seed banks in windward is 81grain/m~2 and the leeward density is 100grain/m~2.The seed of ephemerals bourgeoning reaches the pinnacle on April and May.The diversity of different parts sand dune is different,but the differences do not reach the marked level.The similarity is high between the seed banks and the vegetation.

迎风坡种子库密度比背风坡面少,迎风坡种子库平均密度为81粒/m2,而背风坡种子库平均密度为100粒/m2;短命植物种子在4月上旬达到萌发高峰,沙丘不同部位物种多样性存在差异,土壤种子库和地上植被存在较高的相似性,此外短命植物在沙丘不同部位的分布存在较高的空间异质性。

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