191710 June 12 Chen Mengxiong was born in Nanjing and his ancestral home was in Shangyu, Zhejiang. My father graduated from Zhijiang University in Hangzhou and taught in Ningbo for a long time, where he got married and got married. So the Chen family left Shangyu very early, and only relatives and people are still in their hometown. In the early Republic of China, Chen Jia moved from Ningbo to Nanjing. The Chen family has raised five men, five women and ten children. Chen Mengxiong ranks fourth among the brothers, while his closest brother Chen ranks third. Therefore, Chen and Chen Mengxiong, who ranked lower in the family, were born in this ancient capital of the Six Dynasties.

From 1923, he studied in the primary school of Nanjing Central University Experimental School, and from 1930, he studied in the middle school affiliated to Jinling University, and received a good education, which laid a good foundation for his later growth.

1923 to 1930, Chen Mengxiong studied in the primary school of Nanjing Central University Experimental School. From 1930 to 1936, enter the middle school affiliated to Jinling University. These two famous schools in Nanjing have provided him with good learning conditions and laid a solid foundation for his future success. In addition, Chen Mengxiong also has a sister named Chen, who was a music teacher at the Royal Conservatory of Music. She is an educational reformer with progressive ideas. She once organized a seminar on education reform with famous educators Chen Heqin (also from Shangyu) and Tao Xingzhi, and helped Tao Xingzhi to establish Xiaozhuang Normal School. The third sister raised her younger brother in her life, but at the same time she deeply influenced Chen Mengxiong when she was young.

From 65438 to 0938, Chen Mengxiong was admitted to the Department of Geology, Geography and Meteorology of National Southwest Associated University, where three universities merged after the outbreak of the Anti-Japanese War, majoring in geology. Recalling the choice at that time, Chen Lao said that at that time, the northeast was occupied by the Japanese army, and the country was in urgent need of oil, coal, steel and other materials, calling for the development of the northwest. Chen Mengxiong, a young man who wants to contribute to the country's fight against foreign aggression, made a firm choice and struggled for it all his life.

1942, admitted to Chongqing former Central Geological Survey after graduation. There are many authoritative scholars and experts in the field of geology, and they often have the opportunity to visit all parts of the country, so they are the places that young geologists yearn for. The following year, he was sent to Lanzhou to attend the newly established Northwest Branch led by Mr. Wang Yuelun. He followed many experienced geologists and conducted geological mapping and mineral survey in the field for several years.

1945, joined the Qilian Mountain Geological and Mineral Exploration Team headed by Mr. Wang Yuelun, crossed the Qilian Mountain from Xining to the north and entered the Hexi Corridor, becoming the first member of the geological exploration team in China to cross the Qilian Mountain. During his work in the northwest, he published some articles about the northwest regional geology, which became the results of his early geological research.

1946 retired to Nanjing with the institute and participated in the compilation of geological map of China presided over by Mr. Huang. On the eve of the founding of New China, the first geological map of China with the scale of 1 1,000,000 in China and some sub-maps with the scale of 1 1,000,000 were completed. This work enabled him to master a full set of drawing methods and printing techniques, and accumulated important experience for later drawing hydrogeological maps. After the founding of New China, the Geological Survey was incorporated into the Ministry of Geology. In the Geological Department, his first task was the engineering geological survey of the new lines of Tiancheng and Baocheng lines. This is the first new railway line across the Qinling Mountains in China. At that time, under the guidance of Soviet experts, all the survey tasks from line selection to technical design stage were completed, which opened the way for new line survey in many difficult mountainous areas later. Long-term deputy chief engineer of hydrogeology engineering geology bureau of Ministry of Geology and Mineral Resources, responsible for leading the national hydrogeology survey and urban or industrial and agricultural groundwater recharge survey.

65438-0982 Member of Science and Technology Advisory Committee of Ministry of Geology and Mineral Resources, Senior Consultant of Science and Technology Senior Advisory Center, Adjunct Professor of China Geo University and changchun university of science and technology.

1998, the Ministry of Geology and Minerals was reorganized into the Ministry of Land and Resources, and he still serves as an advisory member in the consulting research center of the Ministry.

In the mid-1950s, he was promoted to be responsible for the national regional hydrogeological survey. This is an arduous and unfamiliar task, which lasted nearly 30 years from making plans, formulating rules and regulations, establishing surveying and mapping methods and organizing professional teams to guide field work. In the hydrogeological survey, the first problem encountered is mapping. At first, the drawing method of the Soviet Union was always used. It was not until the early 1970s that we had a chance to see the relevant maps of some European countries, and at the same time, we found many defects in Soviet surveying and mapping methods. According to the latest development abroad, combined with the reality of China, he and his colleagues have created a set of comprehensive hydrogeologic map compilation methods and unified legends which are both characteristic of China and basically in line with international regulations. They have been widely used in China and achieved good results, and they have also been well received internationally. Secondly, it is the calculation of groundwater reserves. In the 1970s, he abolished the Soviet Union's four classification of reserves, which had been used for many years, and created new concepts of groundwater natural resources and exploitation resources. In the early 1980s, on the basis of the national hydrogeological survey, he unified the calculation method according to the above principles, and organized the provinces to complete the calculation and evaluation of the national groundwater resources for the first time.

In the early 1980s, he participated in two international conferences on groundwater system research and introduced the emerging groundwater system theory in Europe to China. Invite Professor G.B. Engelen, a famous Dutch expert on groundwater system, to give lectures in China; Collect relevant foreign documents, edit and publish the Collection of Papers on Groundwater System; Through analysis and comparison, the paper published the basic concepts and research methods of groundwater system. At the same time, he participated in the special working group on groundwater system of the International Hydrological Program (IHP) headed by Professor Ingram, served as a case study of typical areas in Asia, and completed the paper "Groundwater System in the Yellow River Plain of North China" (co-authored with Xu Zhirong), which was included in the monograph "Analysis of Groundwater Flow System" published by the International Hydrological Association (IAHS)IAHS 1986, and was listed as one of the six major case studies in the world. At present, the theory of groundwater system has been widely used and further developed in China, which has played an important role in solving the calculation and model research of groundwater resources under complex conditions.

In order to study the possible environmental impact of water resources development on groundwater system, he undertook the international cooperation project of "Negative Impact of Water Resources Development and Management" of the International Hydrological Plan, and was responsible for the groundwater part. He organized domestic experts, on the basis of summing up China's experience, to analyze the phenomena of water resource depletion, water quality deterioration, seawater intrusion, land subsidence, karst collapse and ecological environment deterioration caused by over-exploitation of groundwater, and to study its formation mechanism and its impact on the environment. This achievement was officially published by the International Association of Hydrological Sciences on 1988, which basically reflected the achievements of environmental hydrogeology research in China and was highly praised by foreign counterparts.

1982, when Chen Mengxiong attended the first International Hydrological Science Conference in Britain, he first heard a brand-new theory of "groundwater system" from the report of Professor Ingram, a famous Dutch scholar, which aroused the great interest of this China scientist. In order to introduce this advanced hydrological science theory into China, after Chen Mengxiong returned to Beijing, he first systematically collected and sorted out relevant foreign documents and published the Essays on Groundwater System Theory.

20 12 12 died in Beijing at 23: 49 on February 28th at the age of 96.