What is the meaning of 立体 in 立体还原一个地区地生态多样性？ When I look up 立体 at http://www.zdic.net/c/b/110/297322.htm I get:
(1) [solid]∶具有长、宽、厚的形体
立体图形
(2) [three-dimensional; stereoscopic]
(3) 包括地面、水、空中的
立体战争
(4) 指地面以上具有若干横向层次的
I guess, in this sentence, 立体 takes meaning (3), but I'm really not sure.

于是徐健成立了社会企业IBE，为保护区、政府等各类课题提供服务，他们的工作是建立野生动植物影像库，立体还原一个地区的生态多样性。

Maybe here 立体 just means 'completely'? Maybe 立体 is not 1 word here?
立体还原一个地区地生态多样性。
(to) completely reconstruct an area's ecological diversity
(to) reconstruct an area's land-, water- and airborne ecological diversity
What do they mean by 立体还原?
'In a multifaceted manner' seems like a good choice. In '立体还原', '还原' is a verb 'restore'  ; that makes '立体' an adverb 

'立体还原'  can be translated as:  'restore in a multidimensional manner' or
'restore in a multifaceted manner' (having many aspects or phases)