[1]黄天宇,刘廷玺,王冠丽,等.科尔沁梯级生态带水热通量动态变化及对环境因子的响应[J].水土保持研究,2019,26(03):122-127,134.
　HUANG Tianyu,LIU Tingxi,WANG Guanli,et al.Dynamic Changes of Water and Heat Fluxes and Responses to Environmental Factors in Cascade Ecological Zone[J].Research of Soil and Water Conservation,2019,26(03):122-127,134.
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科尔沁梯级生态带水热通量动态变化及对环境因子的响应

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 26 期数: 2019年03期 页码: 122-127,134 栏目: 出版日期: 2019-04-12
Title:
Dynamic Changes of Water and Heat Fluxes and Responses to Environmental Factors in Cascade Ecological Zone
作者:
黄天宇1, 刘廷玺1,2, 王冠丽1,2, 段利民1,2, 陈小平1
1. 内蒙古农业大学 水利与土木建筑工程学院, 呼和浩特 010018;
2. 内蒙古自治区水资源保护与利用重点实验室, 呼和浩特 010018
Author(s):
HUANG Tianyu1, LIU Tingxi1,2, WANG Guanli1,2, DUAN Limin1,2, CHEN Xiaoping1
1. Water Conservancy and Civil Engineering College, Inner Mongolia Agricultural University, Hohhot 010018, China;
2. Inner Mongolia Key Laboratory of Water Resource Protection and Utilization, Hohhot 010018, China
关键词:
水热通量; 动态变化; 相关性分析; 大孔径闪烁仪; 复杂下垫面
Keywords:
water and heat flux; dynamic changes; correlation analysis; large aperture scintillometer; complex underlying surface
分类号:
P404
摘要:
大气边界层内的水热通量在气候系统中起着十分重要的作用。基于大孔径闪烁仪（LAS）科尔沁沙地梯级生态带水热通量2017年3—12月数据，探讨了水热通量与主要环境因子间的关系。结果表明：（1）水热通量日变化特征明显。晴天时显热通量曲线呈单峰状，潜热通量曲线在生长季呈双峰状，非生长季呈单峰状；阴天时显热通量和潜热通量无显著变化规律；土壤热通量曲线在整个研究时段较净辐射曲线表现为稳定的滞后性。（2）水热通量季节性变化显著。通量各月变化曲线峰值出现时间先后移再前移，符合季节变化规律；显热通量在非生长季占净辐射比例较大，生长季时占比降低；潜热通量在整个研究时段占净辐射比例最大，是近地面能量消耗主要形式。（3）太阳净辐射、空气温度、空气相对湿度等气象因子与水热通量的相关性显著；表层10 cm土层土壤与水热通量相关性最好，土壤温度、土壤含水率与水热通量相关性显著，土壤电导率与水热通量相关性不明显。
Abstract:
The water and heat fluxes in the atmospheric boundary layer play a very important role in the climate system. The large aperture scintillometer (LAS) and meteorological observed data were used to analysis the water and heat fluxes of the cascade ecological zone in Horqin sandy land from March 2017 to December 2017. The response relationship between the water and heat fluxes and the main environmental factors was also analyzed. The results showed that:(1) diurnal variation of the water and heat fluxes in the study period in Horqin sandy land experimentation area was obvious; the sensible heat flux in the sunny days showed a significant single peak and the latent heat flux in the sunny days showed two peaks in growing seasons and one peak in non-growing seasons, which was similar to the homogeneous underlying surface; the sensible heat flux and the latent heat flux showed no significant changes in the cloudy days; the soil heat flux showed a stable lag in the whole research period compared with the net radiation; (2) the seasonal variation of water and heat fluxes in the cascade ecosystem of Horqin sandy land was significant; the peak time of the monthly fluxes curve moved backward first and then moved forward, which was in conformity with the seasonal variation principle; the sensible heat flux accounted for a larger proportion of net radiation in the non-growing season and the proportion decrease in the growing season; the latent heat flux accounted for the largest proportion of net radiation in the whole research period and it was the main form of energy consumption near the ground; (3) solar radiation, air temperature, relative humidity of air and other meteorological factors showed pretty good correlation with the water and heat fluxes; the correlation between 10 cm soil layer and the water and heat fluxes was the best in all layers of soil. Soil factors like soil temperature and soil moisture content were significantly correlated with the water and heat fluxes; the correlation between soil electrical conductivity and the water and heat fluxes is not obvious.

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备注/Memo

收稿日期:2018-08-08;改回日期:2018-09-03。
基金项目:国家自然科学基金重点国际合作研究与重点、地区项目（51620105003，51139002，51479086）；教育部创新团队发展计划（IRT_17R60）；科技部重点领域科技创新团队（2015RA4013）、内蒙古自治区草原英才产业创新创业人才团队、内蒙古农业大学寒旱区水资源利用创新团队（NDTD2010-6）；内蒙古自治区高等学校“青年科技英才支持计划”（NJYT-18-B11）
作者简介:黄天宇(1994-),男,河北廊坊人,硕士研究生,研究方向为干旱区水热通量。E-mail:huangtyy@foxmail.com
通讯作者:刘廷玺(1966-),男,内蒙古赤峰人,教授,博士,研究方向为干旱区生态水文。E-mail:txliu1966@163.com

更新日期/Last Update: 1900-01-01