Like most river conservationists these days, however, they also know that the condition of the main trunk is much determined by the condition of its tributaries, and that these in turn are affected by land use practices throughout the territory that the system drains: for instance, by how much paved surface there is and how much storm water runoff and pollution they generate, by runoff from fertilizers applied on lawns and farmlands, or by construction or other soil and vegetation disturbances in stream side zones.
(they; generate; ) (fertilizers; applied; on lawns and farmlands, or by construction or other soil and vegetation disturbances in stream side zones) (these; are affected; by land use practices; T:in turn)
they fertilizers these
generate applied are affected
on lawns and farmlands, or by construction or other soil and vegetation disturbances in stream side zones
by land use practices T:in turn