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| 地理学视角的干旱传播概念、特征与影响因素研究进展 | |
| 引用本文： | 田丰,杨建华,刘雷震,武建军.地理学视角的干旱传播概念、特征与影响因素研究进展[J].地理科学进展,2022,41(1):173-184. |
| 作者姓名： | 田丰 杨建华 刘雷震 武建军 |
| 作者单位： | 1. 北京师范大学环境演变与自然灾害教育部重点实验室,北京 100875 2. 北京师范大学遥感科学国家重点实验室,北京 100875 3. 北京师范大学地理科学学部,北京 100875 4. 中国农业大学草业科学与技术学院,北京 100083 |
| 基金项目： | 国家重点研发计划项目(2017YFB0504102);国家自然科学基金项目(42071401);国家自然科学基金项目(41671424);环境演变与自然灾害教育部重点实验室基础科研项目(111201001) |
| 摘 要： | 从地理学视角理解干旱传播时空维概念内涵,沿着“概念界定—特征量化—过程描述”这条主线全面揭示干旱传播特征、模式与机制及其研究现状,对于深刻理解干旱发展始终全过程中干旱演变过程与驱动因素具有重要的理论意义。论文首先从地理学时空完备性进行干旱传播概念界定;分析干旱传播的时空两维特征并归纳其研究思路与方法;探究干旱传播的主要影响因素;并归纳出基于“特征—过程—机制”的干旱传播研究框架与展望。通过梳理国内外文献并综述表明,干旱传播具有时空维概念与特征,其主要受下垫面因素(水系特征)、气候变化与人类活动(土地利用行为)控制。目前,干旱传播主要集中于干旱传播时间维度上的滞后性特征及传播概率研究,在探索其空间维度特征、演绎干旱传播过程并揭示其驱动机制方面尚有不足。揭示气象干旱、水文干旱、农业干旱至社会经济干旱形成与演变的过程机制和规律是干旱研究的重要内容,是制定高效的御旱抗旱措施的首要前提,从地理学视角揭示干旱传播概念内涵并探究其特征与过程机制应是干旱研究的题中要义。 |
| 关 键 词： | 干旱传播 传播特征 气象干旱 水文干旱 传播机制 |
| 收稿时间： | 2021-01-21 |
| 修稿时间： | 2021-04-04 |
Progress of research on the conception,characteristic, and influencing factors of drought propagation from the perspective of geographic sciences |
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| TIAN Feng,YANG Jianhua,LIU Leizhen,WU Jianjun.Progress of research on the conception,characteristic, and influencing factors of drought propagation from the perspective of geographic sciences[J].Progress in Geography,2022,41(1):173-184. | |
| Authors: | TIAN Feng YANG Jianhua LIU Leizhen WU Jianjun |
| Institution: | 1. Key Laboratory of Environmental Change and Natural Disasters, Ministry of Education, Beijing Normal University, Beijing 100875, China 2. Faculty of Geographical Sciences, Beijing Normal University, Beijing 100875, China 3. State Key Laboratory of Remote Sensing, Beijing Normal University, Beijing 100875, China 4. College of Grassland Science and Technology, China Agricultural University, Beijing 100083, China |
| Abstract: | Drought propagation is an important topic in the drought research field, and its theory and research framework are not yet complete. This article elucidated the spatiotemporal conception of drought propagation from the perspective of geographic sciences, and comprehensively revealed the characteristics and patterns and summarized the research status of drought propagation following the steps of defining the concept, quantifying the characteristics, and describing the processes, which has an important theoretical significance for a deep understanding of the evolution process and driving mechanism of drought propagation throughout a drought. First, the article defined the conception of drought propagation from the spatiotemporal dimensions in a comprehensive manner based on the principles of geographic sciences. Then we analyzed the spatiotemporal characteristics of drought propagation and examined the research approaches and methods, and subsequently explored the main influencing factors of drought propagation. Finally, this article summarized the research framework and provisions based on the characteristics, processes, and mechanisms of drought propagation. A review of Chinese and international literature showed that drought propagation is characterized by the two-dimensional attributes of space and time, which was mainly controlled by the catchment characteristics, climate change, and anthropogenic activities. However, the previous studies have focused mainly on the lag time and probability of drought propagation, and are inadequate in exploring the spatial dimension, describing the evolution process, and identifying the driving mechanism of drought propagation. Revealing the process and mechanism and the formation and transition of meteorological drought, hydrological drought, agricultural drought to socioeconomic drought is the essence of drought research and the primary prerequisite for formulating effective drought control measures. Understanding the characteristics and process and mechanism of drought propagation is a key component of drought research. |
| Keywords: | drought propagation propagation characteristic meteorological drought hydrological drought propagation mechanism |
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