Addressing the existing technical challenges, namely the differences between ecological breeding environments and wild habitats, and the low natural reproductive capacity of the giant salamander, characterized by slow growth, late sexual maturity, and low survival and breeding rates. A method for ecological breeding suitable for the giant salamander, based on the environmental factors of its natural habitat, is provided.
The ecological imitation environment is established based on the ecological and environmental factors of the giant salamander's natural habitat, and the selection of the reference object for this ecological environmental factor model is crucial.
After long-term research and discussions among scholars, we have established an environmental factor model based on geographical and climatic factors, river section influence factors, cave environmental factors, and water environmental factors. Based on this model, we have established the best construction parameter system for "ecological stream ditches" and "caves." For example, the surface vegetation coverage of the cave area on both sides of the ecological stream ditch should be greater than 85%; the stream ditch should be constructed in an irregular shape, with a gradient of 30° to 45° extending into the stream, a width of 50 to 300 cm, a depth of 50 cm, and a stream bed covered with a 15 to 20 cm thick layer of sand and pebbles composed of river sand and pebbles, a stream water depth of 25 to 30 cm, and a flow rate of 0.05 to 1 m/s; the cave area ratio should be ≥1.5, and other specific parameter requirements.