干旱区生态环境知识资源中心(Arid): 半干旱区草地站蒸散特征及其对气象因子和植被的响应

Arid

	半干旱区草地站蒸散特征及其对气象因子和植被的响应
其他题名	Characteristics of Grassland Evapotranspiration in Semi-arid Area and its Responses to Meteorological Factors and Vegetation
	韩典辰; 张方敏; 陈吉泉; 李云鹏; 卢琦
来源期刊	草地学报
ISSN	1007-0435
出版年	2021
卷号	29 期号:1 页码:166-173
中文摘要	水分是制约半干旱区生态发展的重要因素,而蒸散(Evapotranspiration,ET)是地表水分消耗的重要过程。本文基于内蒙古半干旱区多伦和锡林浩特草地站多年通量、气象和植被数据,分析两个典型草地ET变化特征及其对植被和主要气象因子的响应,为半干旱区草地资源的持续开发与保护提供参考。结果表明:多伦站和锡林浩特站多年均ET总量分别为417.15mm和440.20mm,其中生长季ET分别占年总量的75.75%和72.38%。两站 ET年内变化均呈单峰型,和热量因子、水分因子与植被状况均呈显著性正相关关系(P<0.01)。通径分析表明,两站ET变化均主要受到太阳净辐射直接作用的驱动,其次受到叶面积指数、降水和土壤含水量的间接影响。
英文摘要	Water is an important factor restricting the ecological development of semi-arid areas,and evapotranspiration( ET)is an important process of land water consumption.Based on the multi-year water flux,meteorological and vegetation data of the Duolun and Xilinhot grassland sites in semi-arid area of Inner Mongolia,this paper analyzed the ET change characteristics of the two typical grasslands and their responses to vegetation growth and main meteorological factors,which can provide scientific guide for the continuous development and protection of semi-arid grasslands.Results showed that the average annual ET of Duolun and Xilinhot sites was 417.15mm and 440.20mm and ET in the growing season accounted for 75.75%and 72.38%,respectively.The change course of ET during the year was unimodal,which was significantly positively correlated with energy factors,water factors and vegetation condition(P<0.01).Path analysis further showed that the monthly ET changes of the two sites were mainly driven by the direct effect of net solar radiation,and then influenced by the indirect effects of leaf area index,precipitation and soil moisture.
中文关键词	蒸散 ; 草地 ; 通径分析 ; 半干旱地区
英文关键词	Evapotranspiration Grassland Path analysis Semi-arid area
类型	Article
语种	中文
收录类别	CSCD
WOS类目	Agriculture
CSCD记录号	CSCD:6925590
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/354160
作者单位	韩典辰, 南京信息工程大学, 气象灾害预报预警与评估协同创新中心, 南京, 江苏 210044, 中国.; 张方敏, 南京信息工程大学, 气象灾害预报预警与评估协同创新中心, 南京, 江苏 210044, 中国.; 陈吉泉, 密歇根州立大学地理环境空间科学系全球变化观测中心, 东兰辛, MI48825.; 李云鹏, 内蒙古自治区生态与农业气象中心, 呼和浩特, 内蒙古 010051, 中国.; 卢琦, 中国林科院荒漠化研究所/沙漠林业实验中心, 北京 100091, 中国.
推荐引用方式 GB/T 7714	韩典辰,张方敏,陈吉泉,等. 半干旱区草地站蒸散特征及其对气象因子和植被的响应[J],2021,29(1):166-173.
APA	韩典辰,张方敏,陈吉泉,李云鹏,&卢琦.(2021).半干旱区草地站蒸散特征及其对气象因子和植被的响应.草地学报,29(1),166-173.
MLA	韩典辰,et al."半干旱区草地站蒸散特征及其对气象因子和植被的响应".草地学报 29.1(2021):166-173.