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| 苏打盐渍土地区芦苇地土壤盐分离子空间变异与群落关系研究 | |
| 引用本文： | 杨帆,邓伟,章光新,杨建锋,李秀军.苏打盐渍土地区芦苇地土壤盐分离子空间变异与群落关系研究[J].土壤学报,2008,45(4):594-600. |
| 作者姓名： | 杨帆 邓伟 章光新 杨建锋 李秀军 |
| 作者单位： | 1. 中国科学院东北地理与农业生态研究所,长春,130012;中国科学院研究生院,北京,100039 2. 中国科学院水利部成都山地灾害与环境研究所,成都,610041 3. 中国科学院东北地理与农业生态研究所,长春,130012 4. 中国地质调查局发展研究中心,北京,100083 |
| 基金项目： | 国家自然科学基金项目 , 中国科学院知识创新项目 |
| 摘 要： | 对松嫩平原西部苏打盐渍土地区芦苇小区土壤盐分离子和植被群落进行了分析,结果表明土壤盐分离子空间变异显著,四种阳离子(Na+、K+、Ca2+、Mg2+)变异系数为0.60~1.22,四种阴离子(HCO3-、CO32-、C l-、SO42-)变异系数为0.35~1.41。离子中,Na+在阳离子中含量最高,HCO3-在阴离子中含量最高。群落间比较,碱茅+芦苇群落八大离子浓度均大于芦苇群落(p<0.05)。且土壤电导率、pH,以及株高、生物量、覆盖度也高于芦苇群落(p<0.01),因此随着土壤电导率、离子浓度的增加,芦苇小区土壤碱化程度加重,植被生长指标减小,植被群落也由芦苇群落向含有碱地植被的碱茅+芦苇群落过渡。 |
| 关 键 词： | 盐分离子 芦苇 群落分布 苏打盐渍土 |
| 收稿时间： | 2007/4/30 0:00:00 |
| 修稿时间： | 8/8/2007 12:00:00 AM |
SPATIAL VARIATION OF SOIL SALINE IONS AND ITS RELATIONS WITH VEGETATION COMMUNITY OF PHRAGMITES AUSTRALIS IN A SALINE-SODIC SOIL |
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| Yang Fan,Deng Wei,Zhang Guangxin,Yang Jianfeng and Li Xiujun.SPATIAL VARIATION OF SOIL SALINE IONS AND ITS RELATIONS WITH VEGETATION COMMUNITY OF PHRAGMITES AUSTRALIS IN A SALINE-SODIC SOIL[J].Acta Pedologica Sinica,2008,45(4):594-600. | |
| Authors: | Yang Fan Deng Wei Zhang Guangxin Yang Jianfeng and Li Xiujun |
| Institution: | Yang Fan1,4 Deng Wei2 Zhang Guangxin1 Yang Jianfeng3 Li Xiujun1 (1 Northeast Institute of Geography , Agricultural Ecology,CAS,Changchun 130012,China) (2 Institute of Mountain Hazards , Environment,Chinese Academy of Sciences & Ministry of Water Conservency,Chengdu 610041,China) (3 Development Investigate Center of Chinese Geologic Research Office,Beijing 100083,China) (4 Graduate School of the Chinese Academy of Sciences,Beijing 100039,China) |
| Abstract: | Distributions of soil saline ions and vegetation communities were studied in Phragmites communis land.Results indicate that spatial variation of soil saline ions was significant,with variation coefficient of the four types of cations(Na+,K+,Ca2+,Mg2+) ranging from 0.60 to 1.22,and of the four types of anion(HCO-3,CO2-3,Cl-,SO2-4) from 0.35 to 1.41.Among the eight types of ions,Na+ was the highest in content among the four cations,and HCO-3 among the four anions.Comparison between vegetation communities show... |
| Keywords: | Salt ions Phragmites communis Community distribution Saline-sodic soil |
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