Empirical Model of Estimating Poplar Shelter Belt Evapotranspiration in Cropland of Alaer Irrigation Area

HU Shunjun; TIAN Changyan; SONG Yudong

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Empirical Model of Estimating Poplar Shelter Belt Evapotranspiration in Cropland of Alaer Irrigation Area

- Empirical Model of Estimating Poplar Shelter Belt Evapotranspiration in Cropland of Alaer Irrigation Area
- Bulletin of Soiland Water Conservation Vol. 29, Issue 5, Pages: 158-160(2010)
- 作者机构：
  
  1. 中国科学院绿洲生态与荒漠环境重点实验室,新疆,乌鲁木齐,830011
  2. 中国科学院新疆生态与地理研究所,新疆,乌鲁木齐,830011
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- Published：2010
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HU Shunjun, TIAN Changyan, SONG Yudong. Empirical Model of Estimating Poplar Shelter Belt Evapotranspiration in Cropland of Alaer Irrigation Area[J]. Bulletin of Soiland Water Conservation, 2010, 29(5): 158-160.
DOI：

HU Shunjun, TIAN Changyan, SONG Yudong. Empirical Model of Estimating Poplar Shelter Belt Evapotranspiration in Cropland of Alaer Irrigation Area[J]. Bulletin of Soiland Water Conservation, 2010, 29(5): 158-160. DOI：

摘要

植物蒸散量主要受能量、土壤含水量和植物生物学特性影响。在多年野外试验基础上

运用数理统计方法建立了估算阿拉尔灌区农田白杨防护林2003—2007年4—10月蒸散量的经验模型。分析结果表明

白杨农田防护林蒸散量与水面蒸发量的比与根系层土壤含水率的关系服从Logistic曲线。该模式仅需常规气象与土壤湿度资料

计算简便

具有一定的应用价值。

Abstract

Evapotranspiration is mainly affected by energy

soil moisture content

and biological characteristics of plant.Based on the field experimental data for years

an empirical model to estimate the evapotranspiration of Populus tomentosa shelter belt from April to October in cropland of the Alaer irrigation area is established by the way of mathematical statistics method.Results show that the ratio of the evapotranspiration to water surface evaporation and the soil moisture content in root zone display the Logistic curve.The model uses routine meteorological and soil moisture data only

so it is convenient in calculation and valuable in utilization.

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