Ecological Informatics talks about the design and application of IT and computational systems for the ecological means viz. ecological analysis, synthesis, including forecasting and management. Ecological Informatics is abdicable also in the river systems, freshwater lakes and marine systems. Different Information technology components and few from Computing Science like artificial neural networks, genetic algorithms, fuzzy logic and adaptive agents are also important. Moreover in ecological management issues like toxic algal blooms, habitat degradation, conservation of biodiversity and fishery management as well as Ecological Informatics is important. The branch is very close with the Computational Ecology, Data Sciences as well.

Forest Informatics can be treated as a branch of Environmental Informatics and more deeply applications of Environmental Informatics specifically on Forest Management and forestry. In other context, it is the emerging area of Environmental Sciences. Though, this branch can also be defined as the applications of Information Science, IT and Computing tools, techniques in Forest related affairs^{[6],[18],[21]}.

In other context, the collection, management, processing, dissemination of data, information and knowledge, and the incorporation of informatics is simply Forest Informatics. Hence it is interdisciplinary and interface of the human, information and forest. Hence close with Forest Science and Forest Management in many contexts. Human readable documents like maps, data sheets, AI, GIS, GPS, Operation Research, Database Management Systems, etc are useful in forest natural resource management. The following are some examples in which Forest Informatics can be applicable—

Apart from the above, in log bucking problems, optimization problems, etc., Forest Informatics can be applied.

Similar to the previous one, Biodiversity Informatics is also an important type of Environmental Informatics practice. The term Biodiversity Informatics was first coined in or around 1992 and identified the applications of IT, Computing and Information Science principles, technologies and tools in Biodiversity Management. This is emerging in Ecological and Environmental Science as well in a different context.

With Biodiversity Informatics practice it may result in improved management, presentation, discovery, exploration and analysis of information and systems in Biodiversity and allied areas. It typically builds on a

foundation of taxonomic, biogeographic, or ecological information stored in digital form, which, with the application of modern computer techniques.

Biodiversity Informatics though a new field but a huge number of professionals and practitioners (also numerous individuals) are involved in the design and construction of taxonomic databases. Simply it is the computerized handling of any biodiversity information but manual documentation also may be part of this.

It is worthy that in some context Biodiversity Informatics may be treated as the composed of names, observations, records of specimens. Moreover, it may be the genetic and/or morphological data associated with a specimen or similar facet.

Irrigation Informatics is an emerging Informatics and interdisciplinary related to Environmental Informatics, Geo Informatics and Social Informatics in many contexts. In some contexts, it is the cross-disciplinary field and use of IT and informatics for the studying and analyzing flows and data management related to irrigation. It is the practice of information processing as well as the engineering of information systems in the biophysical science and part of irrigation wherever information technology or data systems are used, however, the term informatics is may not be noticed in some cases and instead of IT applications in Irrigation and Drainage systems^{[7],[19],[20]}.

Agricultural Informatics is also called Agro-informatics and it is the applications of IT and Computing in agriculture and allied sciences. It is the ideas, techniques and scientific knowledge with the integration of information technology for the management as well as analysis of agricultural data. This branch is very close with the Environmental Informatics and in a simple sense it the applications of following in agriculture and horticulture and sciences—

Agricultural Informatics is very close to the Agricultural Information Technology and Agricultural Information Systems as well.

Geo Informatics is close with the Environmental Informatics and may be considered as a branch of Environmental Informatics. In some contexts, it is related to Environmental Informatics and its allied areas only. There are few areas and fields which are close with Geo Informatics and among these important are ‘Geo Information Science’, Geo Information Technology’, ‘Geo Spatial Technology’, etc.

Simply it is the applications of the different Information Technology components viz. Software Technology, Web Technology, Network Technology, Multimedia Technology,etc in Geo Spatial Designing, Development, Mapping, GPS and Remote Sensing activities in different contexts. In another context, it is the application of IT in Geo Information Database development^[7],[16].

Informatics is a vast field and there are numerous applications in diverse areas. As far as Social applications are concerned Social Informatics are important. Social Informatics is simply the integration of IT and Computing in Social Sciences and Social Services and Sectors. It is in few contexts connected with Environmental Informatics. Social Informatics is another word can be defined as the combination of both Social Science and Information Science. The core aim of the field is to designing, developing and managing of information systems which are required for social development and local governance. In Social Informatics different technologies of Computing and IT are playing a leading role.

The branch of Social Informatics is related to Social Computing in different contexts. In some narrow contexts, it is the gather and disseminating social data using different applications and tools. But practically it is more than that.

It is already noted that Social Informatics is a branch of Informatics and concentrated on social sciences and sectors. The area Urban Informatics and Rural Informatics are the important branch of Social Informatics and closely connected with Environmental Informatics in few contexts.

Urban Informatics is the application of different IT components, Computing tools, Information Systems procedure and mechanism into Urban Information Management and making intelligent, informative urbanization, metropolitan areas development. Similar to the Urban Informatics, the field Rural Informatics also use the same tools, techniques, technologies for modernizing rural areas and villages. The concept of Smart Village can boom with the support of solid Rural Informatics practice.

Apart from these mentioned sub field of Environmental Informatics, there are other areas as well which are also close and nomenclature as the field and among these few important are as follows—

Hence, be it Environmental Informatics or Biodiversity Informatics or Geo Informatics or Forest Informatics or any other mentioned or allied Informatics is applicable in different sectors and all these are applicable in different subjects viz.

There are other subjects as well which are very close to the Environmental Informatics and among these important are—

Hence all these specified areas are close with Environmental Informatics and a combination of both ‘Environmental concern’ and ‘IT/ Informatics’ concern.