Yichun City, Heilongjiang Province, has 500 zilongjiang frog farming base transfer, newly renewed certificate, 30 years of use rights, renewable after expiration, 500 hectares of forest land under contract contract (there are more than forty pools, one river, one small river), has bungalow one room, garage one, formalities of cultivation 16 acres (under contract contract within), solar power, formalities can be renamed, Yamauchi produce a variety of mountain goods.