Basedon Bibliometrics Development Status Andtrendof Research On Micro-irrigation In China

Micro irrigation can timely, adequate and uniform, continuous and quantitative wet crop root zone soil, has become China’s important water-saving irrigation technology. To summarize the development process of micro irrigation technology in C hina, existing problems, explore micro irrigation technology in our country future development trend and research focus. This paper uses bibliometrics and the CNKI database as the data source, the literature on the study of micro irrigation in 1970-2014 were retrieved. After studying the data, Excel and C iteSpace III software were used to divide the development of micro irrigation technology in our country into d ifferent stages. And analyzing the different stages of the research focus areas of our country and the main features of micro- irrigation, draw the following conclusions:1、From the point of view of literature analysis,combining the number of charts about irrigation literature, research institutions and the rising trend of Journals, according to the growth rate of the three factors, the development of micro irrigation technology in China can be divided into four stages:Initial stage(1973-1986), the amount of literature, the number of research institutes and the number of journals increased relatively fast with the increase of time. And the growth is relatively stable. Wave growth stage(1986-1993), Growth rate slows and changes, fluctuating growth. Rapid development phase(1993-2006), Irrigation development has entered a rapid growth period, the growth rate is very fast, and relatively stable growth. Exponential growth phase(2006 to date), Development is very rapid in all areas, the overall exponential growth.2、China’s different development stage of micro irrigation technology has different characteristics. From the two aspects of the core authors and representative research institutions, there are mainly the following characteristics:First stage, the number of core authors and research institutions are relatively small, and the growth rate is relatively fast. The regional distribution is more dispersed. Second stage, the number of core authors grows larger, the distribution is more dispersed, and the cooperation is weak. The number of national scientific research institutes increased and there are some agricultural colleges and Universities. The number of institutions in North China increased significantly. Third stage, the number of core authors and the number of representative organizations are relatively small. The proportion of core authors in all authors is significantly larger than that of the previous one. The form of representative research institutions is mixed. Fourth stage, the number of core authors and the representative research institutions have increased significantly. The proportion of the core authors is very large, and the cooperation is close, and the distribution is very wide. On behalf of research institutions in agricultural colleges and universities to occupy the dominant position, mainly in the northwest region.3、Our micro- irrigation research area is gradually formed core- authors group. And research institutions is the main universities and research institutes, mainly universities, research institutes, supplemented. But some companies also attach great importance to the study of micro- irrigation. They work with universities or research institutes to carry out school enterprise cooperation, which plays an important role in promoting the research of micro irrigation in China.4、The current hot spot of our micro irrigation research contains:Irrigation efficiency, irrigation device, drip irrigation, fertilizer integration technology,etc. The focus of future research of micro- irrigation contains: Research and development of drip irrigation tec hnology application and benefit、Research and development of drip irrigation technology application and benefit, a new type of emitter, new irrigation system, drip irrigation and fertigation technology and effect on crops and soil, micro irrigation intelligent control technology,etc.5、Study of micro irrigation technology is gradually mature gradually. Multi-disciplinary, multi- field cross of intensive study will be an important trend in the future of micro irrigation in China. Our future in micro-irrigation water-saving technology will also focus on efficiency and towards the integration of the development of efficient water-saving model.