干旱区生态环境知识资源中心(Arid): Aeolian sands and soils of a Wetland Biosphere Reserve: The Tablas de Daimiel

Arid

DOI	10.3232/SJSS.2015.V5.N3.06
	Aeolian sands and soils of a Wetland Biosphere Reserve: The Tablas de Daimiel
	Garcia-Gimenez, R.; Gonzalez-Cascon, R.; Vigil, R.; Jimenez Ballesta, R.
通讯作者	Ballesta, RJ
来源期刊	SPANISH JOURNAL OF SOIL SCIENCE
ISSN	2253-6574
出版年	2015
卷号	5 期号:3 页码:259-275
英文摘要	Three soil profiles were characterized from a sandy area situated in a transitional zone in the "Tablas de Daimiel" UNESCO wetland biosphere reserve (TDNP) in the Mancha Plain (Central Spain). The original thickness of the soil layer in this area was as much as 100 cm, but the combined effect of unbalanced cultivation (including irrigation) and an increasingly dry climate has partially eroded their natural properties, almost leading to a desertification process. The main properties of these soils, classified as Xeropsamments (Soil Survey Staff 2006) or Arenosols (IUSS Working Group WRB 2006), are the dominance of sand in the soil matrix, its basic character, and low soil organic matter and carbonate contents. Scanning electron microscopy of the quartz grain surfaces indicated that the superficial textures were commonly well preserved and characteristic of specific conditions of aeolian formation. Exoscopy revealed a mixture of sub-angular and rounded quartz morphotypes with well-preserved mechanical impacts on the grain surfaces. These percussion effects are characteristic of aeolian processes and confirmed that mechanical actions were more significant than chemical processes in their pedogenesis. This micromorphological study of the textural sands in the transitional zone of the TDNP revealed that the (red) sands were transported to this area by wind, probably from material of degraded red soils, and deposited on soil horizons previously developed over marls and limestones. The relict character of these materials and specially their susceptibility to degradation should be considered as a priority argument to preserve this area and introduce management measurements to avoid soil erosion.
英文关键词	Sandy soils exoscopy scanning electron microscopy textural surface TDNP
类型	Article
语种	英语
开放获取类型	DOAJ Gold
收录类别	ESCI
WOS记录号	WOS:000366601100007
WOS关键词	QUARTZ GRAIN SURFACE ; LAS-TABLAS ; DUNE ; THERMOLUMINESCENCE ; FEATURES ; DESERT ; LOESS ; SHAPE ; AREA ; SEA
WOS类目	Soil Science
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/331183
作者单位	[Garcia-Gimenez, R.; Vigil, R.; Jimenez Ballesta, R.] Univ Autonoma Madrid, Dept Geol & Geochem, E-28049 Madrid, Spain; [Gonzalez-Cascon, R.] Inst Nacl Invest & Tecnol Agr & Alimentaria INIA, Dept Environm, Madrid 28040, Spain
推荐引用方式 GB/T 7714	Garcia-Gimenez, R.,Gonzalez-Cascon, R.,Vigil, R.,et al. Aeolian sands and soils of a Wetland Biosphere Reserve: The Tablas de Daimiel[J],2015,5(3):259-275.
APA	Garcia-Gimenez, R.,Gonzalez-Cascon, R.,Vigil, R.,&Jimenez Ballesta, R..(2015).Aeolian sands and soils of a Wetland Biosphere Reserve: The Tablas de Daimiel.SPANISH JOURNAL OF SOIL SCIENCE,5(3),259-275.
MLA	Garcia-Gimenez, R.,et al."Aeolian sands and soils of a Wetland Biosphere Reserve: The Tablas de Daimiel".SPANISH JOURNAL OF SOIL SCIENCE 5.3(2015):259-275.