| 准噶尔盆地盐渍土壤水盐动态及其对植被影响 |
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| 引用本文： | 李利,何兴元,张希明. 准噶尔盆地盐渍土壤水盐动态及其对植被影响[J]. 辽宁工程技术大学学报(自然科学版), 2007, 26(2): 296-299 |
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| 作者姓名： | 李利 何兴元 张希明 |
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| 作者单位： | 中国科学院,沈阳应用生态研究所,辽宁,沈阳,110016;中国科学院,新疆生态与地理研究所,新疆,乌鲁木齐,830011;中国科学院,沈阳应用生态研究所,辽宁,沈阳,110016;中国科学院,新疆生态与地理研究所,新疆,乌鲁木齐,830011 |
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| 基金项目： | 中国科学院“西部之光”人才培养计划项目(2005)，中国科学院新疆生态与地理研究所所长基金项目特别资助 |
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| 摘 要： | 以准噶尔盆地北部边缘囊果碱蓬为主的多汁盐柴类荒漠为研究对象，结合野外采样、植物群体和个体的调查统计，对春夏季土壤水盐动态变化及植被发生对水盐变化的响应进行了研究。结果显示，土壤水盐变化以春季表层土壤为最剧烈，自早春至夏季土壤水分呈现先升高，后降低的趋势，土壤盐分变化则相反；植物的发生在群体密度和个体存活率上表现先较高后下降的规律，这证明当地植被的发生与土壤水盐动态变化关系密切，在干旱区，水热模式是决定植物发生和分布的重要因素。
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| 关 键 词： | 水盐动态 盐渍土 准噶尔盆地 植被 |
| 文章编号： | 1008-0562(2007)02-0296-04 |
| 修稿时间： | 2006-04-06 |
Soil water and salinity dynamics and its effects on vegetation emergency in Zhungaer Basin |
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| LI Li,HE Xing-yuan,ZHANG Xi-ming. Soil water and salinity dynamics and its effects on vegetation emergency in Zhungaer Basin[J]. Journal of Liaoning Technical University (Natural Science Edition), 2007, 26(2): 296-299 |
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| Authors: | LI Li HE Xing-yuan ZHANG Xi-ming |
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| Affiliation: | LI Li1,2,HE Xing-yuan1,ZHANG Xi-ming2 |
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| Abstract: | In the analysis of soil sample,it was found that the change of water and salinity was most intense in soil surface layer;from early spring to summer,soil water showed a continual drop,but soil salinity changed as an opposite trend.Moreover,a drop was observed in population density and seedling survival about the demographic survey.The result suggests that there is a close relation between vegetation emergency and soil water and salinity dynamics.It is concluded that water-heat pattern may play an important part in plant emergency and distribution in arid region. |
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| Keywords: | soil water and salinity dynamics saline soil the Zhungaer Basin vegetation |
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