Relationships between the biomass of algal crusts in fields and their compressive strength

CORC > 水生生物研究所 > 中科院水生所知识产出（2009年前） > 期刊论文

	Relationships between the biomass of algal crusts in fields and their compressive strength
	Xie, Zuoming ; Liu, Yongding ; Hua, Chunxiang ; Chen, Lanzhou ; Li, Dunhai
刊名	SOIL BIOLOGY & BIOCHEMISTRY
	2007-02-01
卷号	39 期号:2 页码:567-572
关键词	desert algal crusts blue-green algae cyanobacteria wind erosion rain erosion EPS compressive strength scytonemin
ISSN号	0038-0717
通讯作者	Liu, YD, Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China
中文摘要	In the desert areas of China investigated by the authors, various biological crusts were predominately associated with three blue-green algal (cyano bacterial) species, Microcoleus vaginatus Gom., Phormidium tenue (Menegh.) Gom. and Seytonema javanicum (Mitz.) Born et Flah. Their biomass and their compressive strength were measured simultaneously in the field in this study. It was also found that the compressive strength of algal crusts was enhanced with the increasing of algal biomass from an undetectable level to a value as high as 9.6mg g(-1) dry soil. However, when the algal biomass decreased, the compressive strength did not descend immediately, but remained relatively steady. The higher the algal biomass became, the thicker were the algal crusts formed. Given the same biomass, the highest compressive strength of man-made algal crusts in fields was found at an algal ratio of 62.5% M. vaginatus, 31.25% P. tenue and 6.25% S. javanicum, and it reached 0.89kgcm(-2). When the biomass of the crusts increased above the value of 8.16 mg chl ag(-1) dry soil, the compressive strength would not ascend easily. It indicated that the compressive strength of man-made algal crusts appeared temporarily saturated in the field. (c) 2006 Elsevier Ltd. All rights reserved.
英文摘要	In the desert areas of China investigated by the authors, various biological crusts were predominately associated with three blue-green algal (cyano bacterial) species, Microcoleus vaginatus Gom., Phormidium tenue (Menegh.) Gom. and Seytonema javanicum (Mitz.) Born et Flah. Their biomass and their compressive strength were measured simultaneously in the field in this study. It was also found that the compressive strength of algal crusts was enhanced with the increasing of algal biomass from an undetectable level to a value as high as 9.6mg g(-1) dry soil. However, when the algal biomass decreased, the compressive strength did not descend immediately, but remained relatively steady. The higher the algal biomass became, the thicker were the algal crusts formed. Given the same biomass, the highest compressive strength of man-made algal crusts in fields was found at an algal ratio of 62.5% M. vaginatus, 31.25% P. tenue and 6.25% S. javanicum, and it reached 0.89kgcm(-2). When the biomass of the crusts increased above the value of 8.16 mg chl ag(-1) dry soil, the compressive strength would not ascend easily. It indicated that the compressive strength of man-made algal crusts appeared temporarily saturated in the field. (c) 2006 Elsevier Ltd. All rights reserved.
学科主题	Soil Science
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
类目[WOS]	Soil Science
研究领域[WOS]	Agriculture
关键词[WOS]	DESERT SOIL ALGAE ; CRYPTOGAMIC CRUSTS ; CYANOBACTERIA ; STABILIZATION ; SUCCESSION
收录类别	SCI
语种	英语
WOS记录号	WOS:000243209100019
公开日期	2010-10-13
内容类型	期刊论文
源URL	[http://ir.ihb.ac.cn/handle/152342/8736]
专题	水生生物研究所_中科院水生所知识产出（2009年前）_期刊论文
作者单位	1.Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China 3.China Univ Geosci, Sch Environm, Wuhan 430074, Peoples R China 4.Wuhan Univ, Dept Resource & Environm Sci, Wuhan 430072, Peoples R China
推荐引用方式 GB/T 7714	Xie, Zuoming,Liu, Yongding,Hua, Chunxiang,et al. Relationships between the biomass of algal crusts in fields and their compressive strength[J]. SOIL BIOLOGY & BIOCHEMISTRY,2007,39(2):567-572.
APA	Xie, Zuoming,Liu, Yongding,Hua, Chunxiang,Chen, Lanzhou,&Li, Dunhai.(2007).Relationships between the biomass of algal crusts in fields and their compressive strength.SOIL BIOLOGY & BIOCHEMISTRY,39(2),567-572.
MLA	Xie, Zuoming,et al."Relationships between the biomass of algal crusts in fields and their compressive strength".SOIL BIOLOGY & BIOCHEMISTRY 39.2(2007):567-572.