Origin of Paddy Fields and Functions for Environmental Remediation in the Urbanized Areas of Yangtze River Delta - Environmental Contamination: Health Risks and Ecological Restoration - page 395

TABLE 18.1
Status.of.Rice.Production.in.Jiangsu,.Zhejiang,.and.Shanghai.Region.during.the.Past.30.Years
Region 1980 1990 2000 2008
Unit a Area Yield T..Yields Area Yield T..Yields Area Yield T..Yields Area Yield T..Yields
Jiangsu 2703.1 5.71 1301.5 2414.9 7.35 1780.2 2398.5 8.08 1937.3 2228.1 7.91 1716.1
Zhejiang 2475.1 5.26 1301.0 2380.1 5.60 1331.2 1940.4 5.84 1132.5 954.3 6.68 636.9
Shanghai 324.6 5.60 181.5 258.9 7.02 181.3 200.8 7.69 154.3 109.1 7.88 86.0
Total b 5502.8 5.51 2784.0 5058.5 6.66 3292.6 4539.7 7.20 3224.1 3291.5 7.21 2439.0
Source: . Data.from.Chinese.Agricultural.annals.of.the.year.1980,.1990,.2000,.and.2008—Chinese.Agriculture.Press,.Beijing,.China.
a. Unit.of.area,.10 3 .hm 2 ;.Yield,.t/hm 2 ;.Total.yields,.10 4 .t.
b. Total.area.and.total.yield.are.the.subtotal.of.three.provinces;.yield.per.unit.is.average.of.three.provinces,.t/hm 2 .