| 土壤种子库和土壤水分对沙丘过渡带植被入侵的影响 |
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| 引用本文： | 闫守刚,崔艳辉.土壤种子库和土壤水分对沙丘过渡带植被入侵的影响[J].白城师范学院学报,2011(5):33-38. |
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| 作者姓名： | 闫守刚 崔艳辉 |
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| 作者单位： | 白城师范学院地理系 |
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| 摘 要： | 流动沙丘迎风坡与丘间低地过渡带的植被过程制约着沙丘区植被的自然恢复.利用7块迎风坡过渡带的出土幼苗分别与土壤种子库和土壤水分进行二元相关分析,结果表明,各月份出土幼苗与不同深度土壤种子库（0～5cm,5～15cm,15～30cm）的相关性未达到显著水平（P﹥0.05）;但是各月份出土幼苗与不同深度土壤水分（0～5cm,5～15cm,15～30cm）呈显著正相关（P﹤0.05）.说明土壤水分是制约植被侵入迎风坡过渡带裸沙的主要因素,而土壤种子库的制约作用并不明显.
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| 关 键 词： | 流动沙丘 过渡带 土壤种子库 土壤水分 |
Effects of Soil Seed Bank and Soil Moisture on the Vegetation Invading into Transition Zones |
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| YAN Shou-gang,CUI Yan-hui.Effects of Soil Seed Bank and Soil Moisture on the Vegetation Invading into Transition Zones[J].Journal of Baicheng Normal College,2011(5):33-38. |
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| Authors: | YAN Shou-gang CUI Yan-hui |
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| Institution: | (Geography Department,Baicheng Normal University,Baicheng 137000,China) |
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| Abstract: | Windward slope of sand dune and vegetation process in the transitional area in the dunes restricted the recovery of the vegetation in sand dune areas.Using the seedlings in 7 tracts of zones in windward slopes to analyze soil seed bank and soil moisture,a result was not significant in level(P﹥0.05);but the seedlings and the soil moisture in different depth of soil(0~5cm,5~15cm,15~30cm)had positive correlation.This explained that soil moisture was the the main factor to restrict the vegetation from invading bare sand in windward slopes,and soil seed band did not affect it so much. |
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| Keywords: | migratory dune transition zone soil seed bank soil moisture |
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