Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1080/15324980590916549 |
Nitrogen and carbon dynamics under the canopy of sand dune shrubs in a desert ecosystem | |
Xie, GH; Steinberger, Y![]() | |
通讯作者 | Steinberger, Y |
来源期刊 | ARID LAND RESEARCH AND MANAGEMENT
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ISSN | 1532-4982 |
EISSN | 1532-4990 |
出版年 | 2005 |
卷号 | 19期号:2页码:147-160 |
英文摘要 | Organic matter and nitrogen, crucial in terrestrial ecosystems, are limited in deserts due to the most obvious characteristics of scarcity of plant cover and low productivity. Little attention has been given to nutrient availability and ecological processes in desert sand dunes. We investigated the temporal and seasonal dynamics of carbon and nitrogen under two representative perennial shrubs of the Negev Desert inland sand dunes, Retama raetam and Artemisia monosperma. Having investigated total organic carbon, dissolved organic carbon, total soluble nitrogen, and mineralizable nitrogen in the soils at 0-10 cm depth, we conclude that in the Negev sandy soil ecosystem: (1) the concentration of carbon and nitrogen in the soil under the canopy of R. raetam was higher than in that under A. monosperma; (2) more available nitrogen appeared during the wet season compared to the other seasons, mainly due to regulation of soil water content; (3) the amounts of total organic carbon, total soluble nitrogen and mineralizable nitrogen were greatest in winter, and (4) nutrient heterogeneity is controlled mainly by plant cover rather than by the species forming the cover. |
英文关键词 | arid ecosystem organic mineralization organic carbon sandy soil soluble nitrogen |
类型 | Article |
语种 | 英语 |
国家 | Israel ; Peoples R China |
收录类别 | SCI-E |
WOS记录号 | WOS:000228299100005 |
WOS关键词 | SOIL-NITROGEN ; MICROBIAL BIOMASS ; SHORTGRASS STEPPE ; PLANT ; MINERALIZATION ; RESOURCES ; GRASSLAND ; PATAGONIA ; PATTERNS |
WOS类目 | Environmental Sciences ; Soil Science |
WOS研究方向 | Environmental Sciences & Ecology ; Agriculture |
来源机构 | 中国农业大学 |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/148472 |
作者单位 | (1)Bar Ilan Univ, Fac Life Sci, IL-52900 Ramat Gan, Israel;(2)China Agr Univ, Fac Crop Sci & Technol, Beijing, Peoples R China |
推荐引用方式 GB/T 7714 | Xie, GH,Steinberger, Y. Nitrogen and carbon dynamics under the canopy of sand dune shrubs in a desert ecosystem[J]. 中国农业大学,2005,19(2):147-160. |
APA | Xie, GH,&Steinberger, Y.(2005).Nitrogen and carbon dynamics under the canopy of sand dune shrubs in a desert ecosystem.ARID LAND RESEARCH AND MANAGEMENT,19(2),147-160. |
MLA | Xie, GH,et al."Nitrogen and carbon dynamics under the canopy of sand dune shrubs in a desert ecosystem".ARID LAND RESEARCH AND MANAGEMENT 19.2(2005):147-160. |
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