SCI is the most important retrieval and evaluation tool in the field of natural science, and its source journals are mostly important international journals. Publishing research papers in SCI source journals has become the goal of many researchers. This paper briefly introduces SCI, online access to SCI source journals on water resources, agricultural engineering, environmental science, electricity, electronics, environmental engineering and environmental science, and matters needing attention in submission.

1 SCI Introduction Science Citation Index (SCI) was originally created by Eugene? Founded by eugene garfield, it is now owned by institute for scientific information in Philadelphia? Edited and published by the United States (ISI). There are many versions of SCI: printed version, tape version, CD-ROM version, online version and online version. At present, the familiar name SCI in China refers to the printed and CD-ROM versions of SCI. Tape version, online version (SCISearch) and science network are Sci(SCIE；; ; In 2003, the number of source periodicals was 5800. The printed and CD-ROM editions of SCI have screened out 3,700 important international academic journals from a large number of scientific journals (2003), which are called "core journals" or "leading journals". 1997, ISI launched the Web of Science, which combines network technology with hypertext linking and retrieval technology, and provides a way for researchers to search SCI conveniently and effectively through the Internet WWW. SCI is a comprehensive retrieval tool in the field of science, involving biology, agronomy, medicine, chemistry, physics, earth science, environmental science, life science and engineering. The main criteria for SCI to select journals are citation data, journal editing criteria and expert judgment. Its theoretical basis is Bradford's scattering law and Garfield's concentration law.

2 how to obtain SCI source periodical information from the internet

(1) Go to the search engine "google" page first, and then enter "ISI".

(2) After entering the ISI page, select the journal list and find that there are many professional databases. So you can find the SCI database you need.

(3) Select and double-click SCI to enter the "Science Citation Index Journal List Options" page. There are many options. In the "Search" column, you can use the journal name, words or phrases in the journal name and ISSN to find the journals you have delineated. You can find all the source journals in SCI by "View Journal List". You can use the classified catalogue method "View Subject Category" to find the periodical catalogue of your subject.

(4) By using the method of "viewing subject categories", searchers can find subject databases of water resources, agricultural engineering, environmental science, electricity, electronics, environmental engineering and environmental science. For example, after selecting Agricultural Engineering, click View Log List. The information provided on this page is as follows: within the scope of "agricultural engineering", SCI”* * * * * has 6 source journals; You can check the publication cycle, serial number, editing and publishing unit and address of the periodical.

(5) Select journals by browsing titles. Assuming that the searcher thinks the journal Irrigation Science is more suitable, he should know the contents of the journal, the instructions for submission, the address of the editorial department and so on. Double-click the publishing company of the periodical, enter the page and click "Springer link" under the column of periodical resources, and then assemble according to the following steps: click "complete list title", click "periodical" and then click "periodical" to see the alphabetical list of periodicals of the publishing house.

(6) Next, you find "Irrigation Science", and then click on the journal to enter the journal page. Click "About this magazine" to get the following information: editorial board, description information, author's description, copyright information and address. If you need to know the contents and scope of the journal, you can click Ains & Scope and "Contents" on the previous page; If you need to know the submission instructions, you can click on the information and address; ; If you want to know the editorial department and submission address of the magazine, you can click on the editorial department and information and address.

3 submission

(1) Establish professional ethics and oppose' multiple contributions for one manuscript'.

In order to strengthen the construction of spiritual civilization in scientific and technological circles and further improve the professional ethics level of the majority of scientific and technological personnel, China Association for Science and Technology held a conference on "National Convention on Professional Ethics of Sci-tech Journals" on 1 February, 19991. Among them, it is considered immoral to submit more than one article within the prescribed time limit. At present, the phenomenon of "more investment in one project" still occurs from time to time in China's scientific and technological circles. If the submitted publication is not intended to be adopted, the research paper or article can only be submitted to other publications. Re-inventing any research paper and then resubmitting it is also considered a violation of scientific ethics.

(2) The writing method of the attached letter of the manuscript is the same as that of the attached letter and manuscript, and it should be prominent and fascinating in order to attract the editor's attention to the manuscript. Attention should be paid to writing this kind of letter: ① Get to the point and directly explain your intention. (2) the language should be concise, and the words should be concise, so as not to make the other party misunderstand. Foreigners pay more attention to etiquette, so they should be modest and polite.

Although the citation analysis data provided by SCI is credible and scientific as a basis for evaluating academic achievements, it also has the inherent deficiency that its basic assumptions are not rigorous enough. The concept of citation is based on the basic assumption that the author of the paper absorbs and uses reference documents (cited documents). However, due to the complexity and nature of the motivation of citing documents (such as false quotation, repeated quotation, counter-quotation, false quotation, etc.). ), this basic assumption is not strict enough, and the evaluation system of SCI has certain uncertainty, which is completely based on citation analysis.

In addition, domestic scientific research management departments also have some one-sidedness in evaluating academic achievements by using SCI, which is manifested in the following two aspects: (1) Nature and Science are internationally renowned comprehensive and multidisciplinary magazines, enjoying a high reputation in the world, occupying an important position in SCI's scientific achievements evaluation system, with the influencing factors of 27.365% and 27.365% respectively. Because of its unique academic status, many domestic scientific research institutes have formulated generous incentives to encourage academic personnel to contribute to these two journals. Although the two journals are multidisciplinary, they both focus on life sciences, and the articles published in life sciences account for 70% and 60% respectively. Among the journals of life science, the impact sum is not the highest, and there are 7 or 8 journals with higher impact factors or total citations than these two journals. Therefore, it is unrealistic to simply reward or excessively reward people who publish articles in two journals, and the Ministry of Civil Affairs will dampen the enthusiasm of researchers who publish articles in other journals with higher impact factors. (2) The overall level of a scientific journal can only be targeted at its own discipline, because there is no comparability between disciplines in terms of impact factors and total citation. For example, any discovery in physical and biochemical research will be valued and cited by international peers, and it is not uncommon for research papers to be cited hundreds of times. However, in geoscience and botany, due to the strong regional research objects, research papers are rarely cited by peers, which has no fundamental connection with the actual academic level of the articles. Therefore, the impact factors of publications can only be compared between journals in the same discipline, otherwise it has no practical significance.

Therefore, we must fully understand and correctly use the cited data of SCI when evaluating scientific research achievements. Jame Testa 1997, senior director of ISI, pointed out during his visit to China in September: "Special emphasis must be placed on the correct interpretation and understanding of quoted data. Because the number of authors and periodicals in private disciplines changes greatly, the citation level and articles related to disciplines are also very different. Small disciplines such as botany or mathematics produce less papers or quotations than large disciplines such as biotechnology or genetics. Similarly, in some fields, it may take a long time or even years for an article to attract a certain number of citations (note: Einstein's article on relativity was not cited within six years after it was published), while in other fields, such as life sciences, citations often reach their peak after two or three years. In order to use the quoted data correctly, these facts must be considered. "