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[1]靳正忠,雷加强,李生宇,等.流动沙漠腹地灌木根际土壤微生物比较分析[J].应用与环境生物学报,2010,16(06):759-764.[doi:10.3724/SP.J.1145.2010.00759]
　JIN Zhengzhong,LEI Jiaqiang,LI Shengyu,et al.Variation in Rhizosphere Microbes of Three Shelter Shrubs in Drift Desert Hinterland in Xinjiang, China[J].Chinese Journal of Applied & Environmental Biology,2010,16(06):759-764.[doi:10.3724/SP.J.1145.2010.00759]
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流动沙漠腹地灌木根际土壤微生物比较分析()
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《应用与环境生物学报》[ISSN:1006-687X/CN:51-1482/Q]

卷:
16卷
期数:
2010年06期
页码:
759-764
栏目:
研究论文
出版日期:
2010-12-25

文章信息/Info

Title:
Variation in Rhizosphere Microbes of Three Shelter Shrubs in Drift Desert Hinterland in Xinjiang, China
文章编号:
201002014
作者:
靳正忠; 雷加强; 李生宇; 徐新文; 常青
(1中国科学院新疆生态与地理研究所 乌鲁木齐 830011)
(2中国科学院干旱区生物地理与生物资源重点实验室 乌鲁木齐 830011)
Author(s):
JIN Zhengzhong;  LEI Jiaqiang;  LI Shengyu;  XU Xinwen;  CHANG Qin
(1Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China)
(2Key Laboratory of Biogeography and Bioresource in Arid Land of Chines Acadeym of Sciences, Urumqi 830011, China)
关键词:
沙漠公路防护林; 土壤微生物; 根际效应; 土壤因子
Keywords:
desert highway shelter forest;  soil microbe;  rhizosphere effect;  soil factor
分类号:
S727.2 : S154.3 (245)
DOI:
10.3724/SP.J.1145.2010.00759
文献标志码:
A
摘要:
分层采集塔里木沙漠公路3种防护林灌木梭梭、沙拐枣、红柳的根际土和非根际土，分析土壤微生物的根际效应及其与土壤环境因子间的关系. 结果表明，3种防护林树种的根际土壤微生物均有比较明显的正效应，R/S值大小为梭梭>沙拐枣>柽柳；土壤微生物区系组成在不同树种根际土之间变化不大，其中细菌介于78.10%~93.18%，为优势类群，放线菌次之，真菌仅为0.03%~0.12%；与非根际土相比，根际土壤养分含量较高，盐分含量较低，为微生物营造了较好的土体条件. 可见，沙漠腹地定植灌木对风沙土发育有较明显的促进作用，尤其是梭梭，建议实际林分配置中可适当提高梭梭的比例. 表6 参22
Abstract:
Rhizosphere and nonrhizosphere soils were sampled layer by layer along the Tarim Desert Highway growing with three shelter shrubs (Haloxylon ammodendron, Calligonum mongolicum and Branchy tamarisk) and were used to study rhizosphere microbes’ effects and their relationships with various soil environmental factors. The results showed that the effects of the rhizosphere soil microbes of the three shrubs were positive, and ranked in H. ammodendron > C. mongolian > B. tamarisk in terms of R/S value. The differences in microbial community structures in the rhizosphere soil with different shrubs were insignificant. The rhizosphere bacteria were dominant, accounting for 78.10%~93.18% of the total soil microbes, while actinomyces second dominant, and fungi accounting for only 0.03%~0.12%. Compared with the nonrhizosphere soil, the content of nutrients in rhizosphere soil was higher but salt content was lower, which provided better soil conditions for the growth of soil microbes. However, the key soil environmental factors related to microbial growth and development were different among bacteria, actinomyces and fungi. In conclusion, the plantation of H. ammodendron promoted the development of aeolian soil in desert hinterland, and H. ammodendron should be widely planted for enhancing the ability of controlling wind and sand in desert regions. Tab 6, Ref 22

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备注/Memo

备注/Memo:
中国科学院“西部之光”人才培养计划西部博士专项（No. XBBS200905）、国家自然科学基金重点项目（No. 41030530）、新疆维吾尔自治区自然科学基金项目（No. 200821163）和塔里木油田公司科研项目（Nos. 971008090016 & 971008090017）资助
更新日期/Last Update: 2010-12-28