干旱区生态环境知识资源中心(Arid): Assessing the progress of desertification of the southern edge of Chihuahuan Desert: A case study of San Luis Potosi Plateau

Arid

	Assessing the progress of desertification of the southern edge of Chihuahuan Desert: A case study of San Luis Potosi Plateau
	Noyola-Medrano Cristina; Martinez-Sias Valeria Abigail
来源期刊	Journal of Geographical Sciences
ISSN	1009-637X
出版年	2017
卷号	27 期号:4 页码:420-438
英文摘要	The aim of this study is to establish if the San Luis Potosi Plateau (SLPP), which is part of the southern edge of the Chihuahuan Desert, is generating desertification processes, indicating a progression of the desert toward the central part of Mexico. Therefore, we analyzed the temporal evolution of four environmental indicators of desertification: Normalized Difference Vegetation Index (NDVI), Normalized Difference Water Index (NDWI), Iron Oxides Index (IO) and Surface Temperature (ST). Landsat TM images are used to cover a period from 1990 to 2011. A new equation of total balance is proposed to generate an image of the overall evolution of each factor which is applied to get a probability map of desertification. The evolution of NDVI, NDWI and IO shows a behavior almost stable over the time. In contrast, the ST shows a slight increase. The outcomes of this study confirm periods of vegetation re-greening and 8.80% of the SLPP has the highest probability to develop desertification. The most affected area is the portion west of the region, and the east and south are the least affected areas. The results suggest a slight advance of the desert, although most of the area doesnt have the necessary conditions to develop desertification.
英文关键词	Landsat NDVI-NDWI ST-IO desertification re-greening vegetation
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	CSCD
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:5911797
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335758
作者单位	Noyola-Medrano Cristina, Facultad de Ingenieria / Area Civil / Geoinformatica /Universidad Autonoma de San Luis Potosi, San Luis Potosi 78290, Mexico.; Martinez-Sias Valeria Abigail, Colegio de Posgraduados / Campus San Luis Potosi, SLP, Mexico.
推荐引用方式 GB/T 7714	Noyola-Medrano Cristina,Martinez-Sias Valeria Abigail. Assessing the progress of desertification of the southern edge of Chihuahuan Desert: A case study of San Luis Potosi Plateau[J],2017,27(4):420-438.
APA	Noyola-Medrano Cristina,&Martinez-Sias Valeria Abigail.(2017).Assessing the progress of desertification of the southern edge of Chihuahuan Desert: A case study of San Luis Potosi Plateau.Journal of Geographical Sciences,27(4),420-438.
MLA	Noyola-Medrano Cristina,et al."Assessing the progress of desertification of the southern edge of Chihuahuan Desert: A case study of San Luis Potosi Plateau".Journal of Geographical Sciences 27.4(2017):420-438.