| In general, substantially all of the outstanding agricultural cultural heritage, which is observed and researched in contemporary era, can be classified as civilization forms before industrial civilization. Due to the restriction from social integration and science technology, the outstanding agricultural cultural heritage usually show distinctive regional characters. Meanwhile, these heritage above can improve the harmonious relationship between human, nature and ecosystem, through experience and lessons accumulating. Therefore, the confirmed outstanding agricultural cultural heritage inevitably include numerous local knowledge and technology. In the subsequent history development process, especially under the mighty disturbance of industrial civilization, the local knowledge and technology included are blear. Without systematic excavation and arrangement, it is difficult to find their scientific, rationality as well as contemporary available value. As result, when making scientific value judgment to the outstanding agricultural heritage, we need the evidence provided by the relevant local knowledge and technology, to ensure the possibility of their heritage and innovation. |