实物量供给使用表 中国资料情况 Data availability in China On Physical supply and use tables

1. 实物量供给使用表 中国资料情况 Data availability in China On Physical supply and use tables Gan Hong China Institute of Water Resources and Hydropower Research

2. Outline General Supply Table Use Table Issues

3. Water statistics related with PSUT in China General Annual Water statistics from MWR China Water Resource Bulletins from 1997 to 2005 North China Water Resource Bulletins from 1994 to 1996 Industrial water use statistics from bureaus of statistics Typical year Integrated water resources planning Water resources utilization

4. Statistics Process General Nation Administrative checkup River basins Provincial Administrative checkup Profectures Administrative checkup Counties

5. Statistics Process General Checkup Classification Supply Balancing checkup Usage Consumption Discharge

6. Statistics units General Administrative regions Administrative regions River basins Overlapped areas River basins

7. 10 hydrological regions at 1st class31 provinial regions750 statistics units overlapping prefectures and hydrological regions at 2rd class

8. Supply table 供给表 • In china, there is no corresponding statistics for supply table while discharges from each industrial sector and domestic water uses can be regarded as the supply to environment in SEEAW. It can occasionally be found that some sectors, say ISIC 36, supplies to other sectors only at prefecture or lower level. These can not meet the supply table in SEEAW.

9. Supply table • Water consumption in supply table is estimated from typical investigation in China, is not obtained from the difference between supply and use tables • Consumption means the evapo-traspiration, soil absorbing, product taking-off, drinking etc. during water transition and using which can not return to any water body in nature.

10. Use table • Both sources-based water abstraction and user-based water supply in Chinese statistics can be located in use table of SEEAW and only the total value without breakdown values can be filled in.

11. Use table (sources-based) Sources-based water use means the gross water including the losses during its transportation supplied to users by various water sources engineering. Storing diversion Surface water lifting transferring Shallow groundwater confined Light salty Treated water Other sources Rainfall collection Sea water

12. Use table (user-based) User-based water use means the gross water including the losses during its transportation distributed to each user. Therefore both user-based and sources-based water are equal. The users are quite different from ISIC. Four main categories for water users are: - Agriculture - Industry - Living - Ecology

13. Agricultural water use Agriculture use Irrigation use Forest, animal husbandary and fishery Fish pond Orchard & forest Grassland Paddy field Irrigated field Vegetables field Artificial Feedingstuff Fruit Nersery Eonomic forest

14. Industrial water use It indicates the water used in manufacturing, processing, cooling, air conditioning, decontaminating, washing etc. in producing of industrial and mining enterprises. It is calculated only for fresh water abstraction and does not include reused water in the industrial internals. Water uses for nation-owned and scale-above industries Water uses for nation-owned and scale-bellow industries Industrial water use Water use for thermal (nuclear) power generation

15. Domestic water uses Service (3rd industry) Public Urban Construction household Domestic household Rural livestock

16. Ecological water uses lakes Urban env. virescence cleaning ecology lakes supplementary swamps Artificial water distribution excluding precipitation and runoff

17. available Some from WRM and NBS respectively available for users not ISIC sectores Only total discharge from industrial and domestic uses available

18. Issues faced • Conflicts of classification with ISIC or more combined classification not meets ISIC • Lack of information from monitoring, metering and investigation, of which some figures have to be estimated • Hard jobs of coordination among various agencies for various information related

19. China Institute of Water Resources and Hydropower Research Thanks