Chinese Agricultural Thesaurus published as Linked Open Data
From the post:
CAT is the largest agricultural domain thesaurus in China, which is held and maintained by AII of CAAS. CAT was the important fruit of more than 100 professionals’ six years hard work. The international and national standards were adopted while designing and constructing CAT. CAT covers areas including agriculture, forestry, biology, etc. It is organized in 40 main categories and contains more than 63 thousand concepts and most of them have English translation. In addition, CAT includes more than 130 thousand semantic relationships such as Use, UF, BT, NT and RT.
Not my favorite format but at least you can avoid a lot of tedious data entry.
Transformation and adding properties will take some effort but not as much as starting from scratch.