Arid
DOI10.1016/j.jag.2013.11.012
Estimation of real evapotranspiration and its variation in Mediterranean landscapes of central-southern Chile
Olivera-Guerra, L.1; Mattar, C.1; Galleguillos, M.2
通讯作者Olivera-Guerra, L.
来源期刊INTERNATIONAL JOURNAL OF APPLIED EARTH OBSERVATION AND GEOINFORMATION
ISSN0303-2434
出版年2014
卷号28页码:160-169
英文摘要

Evapotranspiration (ETd) is a key controller in the ecohydrological processes of semi-arid landscapes. This is the case of the dry land in Chile’s central-southern zone, where forestry, farming and livestock activities must adapt to precipitation with considerable year-on-year variations. In this study, the spatial distribution of ETd was estimated in relation to the land use map and physical parameters of the soil. The ETd was estimated through the Simplified Surface Energy Balance Index (S-SEBI) using data from weather stations and remote data provided by the ASTER and MODIS sensors for November 2004 and 2006, respectively. The spatial variability of ETd was compared among different plant types, soil textural classes and depths using non-parametric statistical tests. In this comparison, the highest rates of ETd were obtained in the forest covers with values of 7.3 +/- 0.8 and 8.4 +/- 0.8 mm d(-1) for 2004 and 2006, respectively. The lowest values were estimated for pastures and shrublands with values of 3.5 +/- 1.2 mm d(-1) and for crops with rates of 4.4 +/- 1.6 mm d(-1). Comparison of the ETd of the native forest covers and plantations of exotic species showed statistically significant differences; however, no great variation was noted, at least in the study months. Additionally, the highest rates of ETd were found in the clay loam textures (6.0 +/- 1.8 and 6.4 +/- 2.0 mm d(-1)) and the lowest rates in the sandy loam soils (3.7 +/- 1.6 and 3.9 +/- 1.6 mm d(-1)) for 2004 and 2006, respectively. The results enable analysis of the spatial patterns of the landscape in terms of the relation between water consumption, ET and the biophysical characteristics of a Mediterranean ecosystem. These results form part of the creation of tools useful in the optimization of decision-making for the management and planning of water resources and soil use in territories with few measuring instruments. (C) 2013 Elsevier B.V. All rights reserved.


英文关键词Evapotranspiration Rainfed landscape S-SEBI ASTER
类型Article
语种英语
国家Chile
收录类别SCI-E
WOS记录号WOS:000332429000015
WOS关键词SEMIARID GRASSLAND ; SIMPLE ALGORITHM ; ENERGY-BALANCE ; PINUS-RADIATA ; SOIL TEXTURE ; ECOSYSTEM ; VEGETATION ; FOREST ; PLANTATIONS ; MODIS
WOS类目Remote Sensing
WOS研究方向Remote Sensing
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/182659
作者单位1.Univ Chile, LAB, Santiago, Chile;
2.Univ Chile, Dept Environm Sci, Sch Agron Sci, Santiago, Chile
推荐引用方式
GB/T 7714
Olivera-Guerra, L.,Mattar, C.,Galleguillos, M.. Estimation of real evapotranspiration and its variation in Mediterranean landscapes of central-southern Chile[J],2014,28:160-169.
APA Olivera-Guerra, L.,Mattar, C.,&Galleguillos, M..(2014).Estimation of real evapotranspiration and its variation in Mediterranean landscapes of central-southern Chile.INTERNATIONAL JOURNAL OF APPLIED EARTH OBSERVATION AND GEOINFORMATION,28,160-169.
MLA Olivera-Guerra, L.,et al."Estimation of real evapotranspiration and its variation in Mediterranean landscapes of central-southern Chile".INTERNATIONAL JOURNAL OF APPLIED EARTH OBSERVATION AND GEOINFORMATION 28(2014):160-169.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Olivera-Guerra, L.]的文章
[Mattar, C.]的文章
[Galleguillos, M.]的文章
百度学术
百度学术中相似的文章
[Olivera-Guerra, L.]的文章
[Mattar, C.]的文章
[Galleguillos, M.]的文章
必应学术
必应学术中相似的文章
[Olivera-Guerra, L.]的文章
[Mattar, C.]的文章
[Galleguillos, M.]的文章
相关权益政策
暂无数据
收藏/分享

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。