Bibliometrics analysis of the development history and features of water conservation in China
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Abstract:
Water conservation is the key measure to solve the complex water problem in China, which is widely paid attention by the whole society. Literature is an important carrier to record research jobs and practical achievements in different fields, which can reflect the key points, hot issues, and difficult problems of a certain research field in a certain period. Systematic review and analysis of water conservation-related literature are helpful to understand the main direction and key content of water conservation research in different periods.Literature on water conservation research was retrieved from the Chinese Academic Journal Database of China national knowledge Internet from 1949 to 2021, and water conservation policy documents related to the same period were counted. The annual publication of literature and the number of policy documents issued over the years were analyzed. High frequency keywords and burst terms were obtained by key words clustering and burst detection of CiteSpace. Based on this, the core content and frontier of water conservation research were analyzed. Typical water conservation policy documents and high frequency key words and burst terms in the same period were counted to analyze the impact of policy documents on the content of water conservation research. Using the key words clustering and key words timeline visualization, the research themes of water conservation and the change of content in each theme with time were obtained.The results show that: (1) The number of published scientific research was affected by the promulgation of policy documents. Major policies played a significant role in guiding scientific research work. (2) Agriculture is the key field of water conservation research. Water conservation research focused on irrigation technology in the early stage. With the expansion of research fields and the increase of research objects, the comprehensive application of water conservation technology was the current research hotspot. (3) Water conservation research formed a research structure with water resource management as the core, high efficient water conservation as the main goal, and irrigation technology, water conservation irrigation, and water conservation agriculture as technical means. (4) 1982, 2002, and 2012 were the important time nodes in the promulgation of water conservation policy and the process of water conservation research. According to these time nodes, the development history of water conservation can be divided into four stages: the embryonic stage (1949-1981), the preliminary stage (1982-2001), the overall development stage (2002-2011), the deepening stage (2012 to date).In the embryonic stage of water conservation, the number of literature on water conservation was few, and practical work mainly focused on agricultural water conservation which was in the experimental stage. In the stage of preliminary, the problem of water shortage gradually emerged, water conservation research began to be active, and efforts to conserve water in agriculture, cities, and daily life continued to advance. In the overall development stage, water conservation was becoming more urgent as water consumption continued to increase. Research on new technologies and methods to conserve water kept emerging, and water conservation involved more and more research fields. In the stage of deepening water conservation, the research field of water conservation was further broadened and deepened, and the content of water conservation research became more abundant and more diversified. The comprehensive application of engineering technology means and management means was valued. These advances promoted the development of water conservation work forward.
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