干旱区生态环境知识资源中心(Arid): 荒漠生物结皮研究中的几个问题

Arid

	荒漠生物结皮研究中的几个问题
其他题名	Recent Progress and Some Existing Problems in the Study on the Desert Microbiotic Crusts
	宋阳 1; 严平 1; 张宏 2; 孟祥亮 3
来源期刊	干旱区研究
ISSN	1001-4675
出版年	2004
卷号	21 期号:4 页码:439-443
中文摘要	生物结皮在干旱区生态系统中扮演着一个关键的角色,它可以影响干旱区土壤的结构、功能、生产力,包括土壤稳定性、土壤保水力、碳、氮的固定和土壤的肥力等.结合国内外生物结皮的研究,提出生物结皮的影响因子、生物结皮与周围植物的关系、生物结皮形态的变化与分布的异质性等几个问题并进行了讨论.
英文摘要	Microbiotic crusts play an important role in the ecosystems in arid and semiarid regions, they affect the structure, functions and productivity of soils, which include the stability, water conserving capability, car-bon and nitrogen fixation, fertility, etc. of soils. In recent 20 years, many studies on microbiotic crusts have been carried out at home and abroad, and these studies have the important scientific values and the extensive practical significances for understanding the structures, functions and feedback mechanisms of the ecosystems and landscapes in arid and semiarid areas. In this paper, the domestic and foreign achievements in scientific re-search on microbiotic crusts are reviewed, and the factors affecting microbiotic crusts, relationship between mi-crobiotic crusts and peripheral vegetation, change and distribution heterogeneity of the conformation of microbi-otic crusts are analyzed. It is considered that, although the formation of microbiotic crusts is affected by many biological, environmental and disturbance factors, the microorganisms composing microbiotic crusts are not to passively adapt the environment, in fact, they adapt actively the severe natural conditions in arid and semiarid regions by changing themselves and the peripheral environment.
中文关键词	生物结皮 ; 影响因子 ; 沃岛 ; 荒漠 ; 土壤
英文关键词	microbiotic crust affecting factor fertile island desert soil
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:1689953
来源机构	北京师范大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/205095
作者单位	1.北京师范大学,中国沙漠研究中心, 环境演变与自然灾害教育部重点实验室, 北京 100875, 中国; 2.四川师范大学,资源与环境学院, 成都, 四川 610068, 中国; 3.北京师范大学,中国沙漠研究中心, 环境演变与自然灾害教育部重点室, 北京 100875, 中国
推荐引用方式 GB/T 7714	宋阳,严平,张宏,等. 荒漠生物结皮研究中的几个问题[J]. 北京师范大学,2004,21(4):439-443.
APA	宋阳,严平,张宏,&孟祥亮.(2004).荒漠生物结皮研究中的几个问题.干旱区研究,21(4),439-443.
MLA	宋阳,et al."荒漠生物结皮研究中的几个问题".干旱区研究 21.4(2004):439-443.