Nanjing High-tech Industrial Devel-opment Zone It is a state-level high-tech in-dustrial development zone approved by theState Council, with an area of 16.5 sq km,comprising seven sq km of industrial area,five sq km o...Nanjing High-tech Industrial Devel-opment Zone It is a state-level high-tech in-dustrial development zone approved by theState Council, with an area of 16.5 sq km,comprising seven sq km of industrial area,five sq km of Taiwan invested area, three sqkm of university teaching and scientificresearch area and 1.5 sq km of compositeservice area. The development zone is 13.5 kmfrom the city center, with convenient trafficconditions, three state highways and a pro-展开更多
Based on the study of groundwater isotope(2H and 18O, 34S, 15N, 3H, 14C) in Changzhou, Wuxi and Suzhou area, it is found that the deep confined groundwater has no pollution on the whole, whereas the shallow groundwate...Based on the study of groundwater isotope(2H and 18O, 34S, 15N, 3H, 14C) in Changzhou, Wuxi and Suzhou area, it is found that the deep confined groundwater has no pollution on the whole, whereas the shallow groundwater is polluted to a different degree in the area. The deep confined aquifers (main exploitation aquifers) in Changzhou area and in Wuxi and Suzhou area likely belong to two different aquifers. The main exploitation aquifers in Changzhou area are not connected with those in Wuxi and Suzhou area, or they are connected but not expedited. The lateral run-off of groundwater is at present directed to the exploitation center because of overexploitation of the deep groundwater for a long time, but the flowing speed of groundwater is still extremely slow. The deep confined groundwater is in a close to half close state. The 14C age of groundwater varies from 10000 a BP to 38000 a BP, with the oldest groundwater found at the nearest exploitation center (along the line of three cities of Changzhou, Wuxi and Suzhou) and the youngest at the furthest exploitation center.展开更多
文摘Nanjing High-tech Industrial Devel-opment Zone It is a state-level high-tech in-dustrial development zone approved by theState Council, with an area of 16.5 sq km,comprising seven sq km of industrial area,five sq km of Taiwan invested area, three sqkm of university teaching and scientificresearch area and 1.5 sq km of compositeservice area. The development zone is 13.5 kmfrom the city center, with convenient trafficconditions, three state highways and a pro-
基金the China Geological Survey (Grant Nos. 200312300013, 1212010340106, 121201063400 and 1212010634404)
文摘Based on the study of groundwater isotope(2H and 18O, 34S, 15N, 3H, 14C) in Changzhou, Wuxi and Suzhou area, it is found that the deep confined groundwater has no pollution on the whole, whereas the shallow groundwater is polluted to a different degree in the area. The deep confined aquifers (main exploitation aquifers) in Changzhou area and in Wuxi and Suzhou area likely belong to two different aquifers. The main exploitation aquifers in Changzhou area are not connected with those in Wuxi and Suzhou area, or they are connected but not expedited. The lateral run-off of groundwater is at present directed to the exploitation center because of overexploitation of the deep groundwater for a long time, but the flowing speed of groundwater is still extremely slow. The deep confined groundwater is in a close to half close state. The 14C age of groundwater varies from 10000 a BP to 38000 a BP, with the oldest groundwater found at the nearest exploitation center (along the line of three cities of Changzhou, Wuxi and Suzhou) and the youngest at the furthest exploitation center.
