高手请进：这句话怎么翻译？

I have been taking part in nationalwide and regional forest resources research, planning and design as well as other related scientific research.
1983以来多次参加全国性、区域性森林资源调查、规划与设计以及相关领域科学研究。

since 1983, I have ,for several times, taken part in the national , regionnal forest resource study , planning, designing and the related scientific reasearches

1983 attend the whole country, the local area forest resources to investigate for many times, programming and designs and the related realm science research.

Since 1983 has participated in nationwide, the regional forest
resources investigation, the plan and the design as well as the
correlation domain scientific research many times

i had taken part in domestical,local investation,programming,designment and some cricls relitives of forest resorces