A computer service system.which was suitable for program and management of small watershed harness

was designed by modern technology

it could replace many daily complicated work of information processing

enable the program more scientific and normal.shorten the period of program formulation.and satisfy the needs of soil and water con"ervation work in time.The system takes GIS as the key

reads topographic map

relevant data and characters into computer as the basic data.makes two kinds of this data to set up a logical relationship

and combines factors of society.economics.natural and human activity with space coordinate as an organic whole.The system managed data ate analyzed synthetically with methods of integrating linear and unlinear

statte and dynamic and multiobjective plan etc.with expert system

then

the HHRLIS system is set up by using higher computer language