In 1857 the Thames Conservancy Board was established.
The Pruth and Sereth are navigable for a short distance by small sailing craft; the conservancy of the Danube (q.v.) is controlled by a European commission, which sits at Galatz.
- For conservancy purposes, regulation of navigation, removal of obstruction, dredging, &c.
Systematic conservancy of the Indian forests received a great impetus from the passing of the Forest Law in 1878, which gave to the government powers of dealing with private rights in the forests of which the chief proprietary right is vested in the state.
Restrictions necessary for the proper conservancy of the forests are, however, imposed, and the system of shifting cultivation, which denudes a large area of forest growth in order to place a small area under crops, is held to cost more to the community than it is worth, and is only permitted, under due regulation, where forest tribes depend on it for their sustenance.