Acta Agrestia Sinica ›› 2021, Vol. 29 ›› Issue (S1): 1-9.DOI: 10.11733/j.issn.1007-0435.2021.Z1.001

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Research Progress of Canopy Interception of Vegetation in Grassland Ecosystem

JIN Yan-xia1, CHEN Zhe2, ZHOU Hua-kun3, FU Jing-jing4   

  1. 1. School of Geographical Sciences, Qinghai Normal University, Xining, Qinghai Province 810016, China;
    2. School of Life Sciences, Qinghai Normal University, Xining, Qinghai Province 810016, China;
    3. Northwest Plateau Institute of Biology, Chinese Academy of Sciences, Key Laboratory of Cold Regions Restoration Ecology, Xining, Qinghai Province 810001, China;
    4. Water Affairs Bureau of Jiangning District, Nanjing City, Nanjing, Jiangsu Province 211100, China
  • Received:2021-04-30 Revised:2021-06-29 Online:2021-10-30 Published:2021-11-17

草地生态系统中植被冠层截留的研究进展

金艳霞1, 陈哲2, 周华坤3, 付京晶4   

  1. 1. 青海师范大学地理科学学院, 青海 西宁 810016;
    2. 青海师范大学生命科学学院, 青海 西宁 810016;
    3. 中国科学院西北高原生物研究所, 青海省寒区恢复生态学重点实验室, 青海 西宁 810001;
    4. 南京市江宁区水务局, 江苏 南京 211100
  • 通讯作者: 陈哲,E-mail:chenzhe@qhnu.edu.cn
  • 作者简介:金艳霞(1986-),女,甘肃定西人,博士,讲师,主要从事生态水文学研究,E-mail:jinyanx526@163.com
  • 基金资助:
    第二次青藏高原综合科学考察研究项目(2019QZKK0302);青海省创新平台建设专项(2021-ZJ-Y01);泛第三极专项子子课题专题(XDA2005010405)共同资助

Abstract: Canopy interception of vegetation is the main process of precipitation redistribution in a grassland ecosystem, and it was one of the components of evapotranspiration in a grassland ecosystem. There were errors in the division of evapotranspiration components because the canopy interception of vegetation was often neglected in the study of water balance in a grassland ecosystem. Therefore, it is of theoretical significance and practical value to discuss canopy interception of vegetation for the study of grassland ecohydrology. Given the present situation and problems about canopy interception of vegetation in a grassland ecosystem, the paper reviewed the research progress of canopy interception of vegetation from two aspects:the methods for determination of canopy interception of vegetation and main factors (environmental factors, vegetation characteristics) affecting the canopy interception of vegetation. The analysis found that the research on the influencing factors of grassland canopy interception of vegetation mainly focused on the precipitation characteristics, meteorological conditions, grazing and vegetation characteristics, etc. The comprehensive influence research of each factor was still few, and the accuracy of the determination method needs to be evaluated.

Key words: Grassland ecosystem, Canopy interception of vegetation, Influencing factors, Method for determination

摘要: 草地植被冠层截留是草地生态系统对降水再分配的主要过程,属于草地生态系统蒸散发的组分之一。由于草地植被冠层截留常在草地生态系统水量平衡研究中被忽略而导致蒸散发组分的划分中存在误差。因此,讨论草地植被冠层截留对草地生态水文学的研究具有重要的理论意义和实用价值。本论文通过对目前草地植被冠层截留研究的现状和存在问题,从草地植被冠层截留的测定方法和主要的影响因素(环境因子和植被特征)2方面论述草地植被冠层截留的研究进展。分析发现,草地植被冠层截留的影响因素研究主要集中在降水特征、气象条件、放牧和植被特征等方面,各因素的综合影响研究仍然非常缺乏,测定方法的准确性有待评估。

关键词: 草地生态系统, 植被冠层截留, 影响因素, 测定方法

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