Arid
DOI10.1016/j.soilbio.2009.02.010
Spatial distribution of arbuscular mycorrhizal fungi, glomalin and soil enzymes under the canopy of Astragalus adsurgens Pall. in the Mu Us sandland, China
Bai, Chunming2; He, Xueli1,2; Tang, Hongliang1; Shan, Baoqin2; Zhao, Lili1
通讯作者He, Xueli
来源期刊SOIL BIOLOGY & BIOCHEMISTRY
ISSN0038-0717
出版年2009
卷号41期号:5页码:941-947
英文摘要

To measure and manage plant growth in and and semi-arid sandlands, improved understanding of the spatial patterns of desert soil resources and the role of arbuscular mycorrhizal (AM) fungi is needed. Spatial patterns of AM fungi, glomalin and soil enzyme activities were investigated in five plots located in the Mu Us sandland, northwestern China. Soils to 50 cm depth in the rhizosphere of Astragalus adsurgens Pall. were sampled. The study demonstrated that A. adsurgens Pall. could form strong symbiotic relationships with AM fungi. Arbuscular mycorrhizal fungal status and distributions were significantly different among the five studied plots. Correlation coefficient analysis demonstrated that spore density was significantly and positively correlated with soil organic carbon (SOC), soil acid phosphatase and to two Brad ford-reactive soil protein (BRSP) fractions (P < 0.01). Colonization of arbuscules and vesicles were positively correlated with protease activity. The BRSP fractions were also significantly and positively correlated to eclaphic factors (e.g. SOC, available nitrogen, and Olsen phosphorus) and soil enzymes (e.g. soil urease and acid phosphatase). The means of total BRSP and easily extractable BRSP were 0.95 mg g(-1) and 0.5 mg g(-1) in all data, respectively. The levels of BRSP in the desert soil were little lower than those in native and arable soils, but the ratios of BRSP to SOC were much higher than farmland soils. The results of this study support the conclusion that glomalin could be an appropriate index related to the level of soil fertility, especially in desert soil. Moreover, AM fungal colonizations and glomalin might be useful to monitor desertification and soil degradation. (C) 2009 Elsevier Ltd. All rights reserved.


英文关键词AM fungi Mu Us sandland Glomalin-related soil proteins Soil enzyme Astragalus adsurgens Pall. Soil organic carbon
类型Article
语种英语
国家Peoples R China
收录类别SCI-E
WOS记录号WOS:000266425500013
WOS关键词ABOVEGROUND BIOMASS ; DROUGHT STRESS ; CARBON ; PLANTS ; HYPHAE ; PROTEIN ; ROOTS ; COLONIZATION ; RHIZOSPHERE ; EXTRACTION
WOS类目Soil Science
WOS研究方向Agriculture
来源机构西北农林科技大学
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/162611
作者单位1.Hebei Univ, Coll Life Sci, Baoding 071002, Hebei, Peoples R China;
2.NW A&F Univ, Coll Life Sci, Yangling 712100, Shaanxi, Peoples R China
推荐引用方式
GB/T 7714
Bai, Chunming,He, Xueli,Tang, Hongliang,et al. Spatial distribution of arbuscular mycorrhizal fungi, glomalin and soil enzymes under the canopy of Astragalus adsurgens Pall. in the Mu Us sandland, China[J]. 西北农林科技大学,2009,41(5):941-947.
APA Bai, Chunming,He, Xueli,Tang, Hongliang,Shan, Baoqin,&Zhao, Lili.(2009).Spatial distribution of arbuscular mycorrhizal fungi, glomalin and soil enzymes under the canopy of Astragalus adsurgens Pall. in the Mu Us sandland, China.SOIL BIOLOGY & BIOCHEMISTRY,41(5),941-947.
MLA Bai, Chunming,et al."Spatial distribution of arbuscular mycorrhizal fungi, glomalin and soil enzymes under the canopy of Astragalus adsurgens Pall. in the Mu Us sandland, China".SOIL BIOLOGY & BIOCHEMISTRY 41.5(2009):941-947.
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