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[Characteristics of evapotranspiration in an alpine shrub meadow in Haibei, Qinghai of Northwest China].
Zheng, Han; Wang, Qiu-Feng; Li, Ying-Nian; Zhu, Xian-Jin.
Afiliación
  • Zheng H; Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China. zhenghanmarch@sina.com
  • Wang QF; Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China.
  • Li YN; Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810001, China.
  • Zhu XJ; Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China.
Ying Yong Sheng Tai Xue Bao ; 24(11): 3221-8, 2013 Nov.
Article en Zh | MEDLINE | ID: mdl-24564153
Evapotranspiration (ET) is an important component of hydrological cycle of terrestrial ecosystem. To study the seasonal and interannual ET variation patterns of typical ecosystems is essential to better understand the water cycle process and to provide reference for the rational utilization of water resources. By using eddy covariance method, this paper studied the seasonal and interannual variation characteristics of ET and water budget in an alpine shrub meadow ecosystem in Haibei of Qinghai from 2003 to 2011. There was an obvious seasonal variation of ET in the study area in 2003-2011, with the maximum (4.4-5.7 mm x d(-1)) in the vigorous growth season (July-August) and the minimum (0.09 +/- 0.04 mm x d(-1)) in January or December. The annual ET varied greatly among the nine consecutive years, being 451.3 mm in 2010 and 681.3 mm in 2007. More than 70% of the annual ET occurred in the growth season from May to September. The average ratio of annual ET to annual precipitation was 1.06 +/- 0.17, indicating that the water budget of this ecosystem was nearly balanced at year scale, and almost all the precipitation was released into atmosphere by ET.
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Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Movimientos del Agua / Frío / Ecosistema / Transpiración de Plantas / Poaceae País/Región como asunto: Asia Idioma: Zh Revista: Ying Yong Sheng Tai Xue Bao Asunto de la revista: SAUDE AMBIENTAL Año: 2013 Tipo del documento: Article País de afiliación: China Pais de publicación: China
Buscar en Google
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Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Movimientos del Agua / Frío / Ecosistema / Transpiración de Plantas / Poaceae País/Región como asunto: Asia Idioma: Zh Revista: Ying Yong Sheng Tai Xue Bao Asunto de la revista: SAUDE AMBIENTAL Año: 2013 Tipo del documento: Article País de afiliación: China Pais de publicación: China