Bidirectional flowing of urban-rural elements is a key to supporting urban-rural integrated development，which is based on the free bidirectional flowing of the productivity elements.Howeve，China's current urban-rural elements only show a directional flowing from rural to urban, obstacles exist from urban to rural.To further study the obstacles of productivity elements to countryside，this paper，based on a case study on County S's Project J，finds out the major obstacles.There are components unfitting modern agriculture and rural tourism in China's current rural land regime， policies and operation，resulting in obstacles in obtaining agricultural land use and rural construction land use.This paper presents the following suggestions.China should implement shareholding reform on agricultural land use based on land right determination， managing agricultural land in a whole from pieces，a path to scaled agricultural land circulation. China should reform township division to break the administrative obstacles in land circulation.China should reform rural collective operating construction land use by optimizing land-to-market mechanism，which can use rural scattering and idling land as a whole and provide spatial holding places for productivity elements to countryside.China should optimize the geographical layout of collective rural construction land use, fulfilling its functions in concentrating industries, guaranteeing social services and promoting cultural development to combine the major urban downtowns with regional towns.It serves as a path for productivity elements to countryside.

General geological (ore) survey is a geological work for public interests financed by governmental capital in China, which can be determined by its objectives, capital source, achievements ownership and operating mechanism, of that achievements ownership is the key factor to determine its public interests for overseas general geological (ore) survey. Currently, China's overseas general geological (ore) survey is a nation-level cooperation sponsored by Chinese geological survey, exchanging geological and mineral resources achievements, which may provide general information for Chinese companies on overseas targeting areas, risk exploration, mineral development. China-Shanghai Cooperative Organization Geological Research Center, in Xian Geological Survey Center, China Geological Survey, is cooperating with middle Asia on geological survey with some achievements, marking its public interests of overseas general geological (ore) survey on Chinese companies.