Trends in rice yield for five selected-provinces in China from 1979 to 2009.

<p>Trends in rice yield for five selected-provinces in China from 1979 to 2009.</p

The locations of the study areas within Mainland China.

<p>Heilongjiang is designated by HLJ, Jiangxi by JX, Guangxi by GX, Sichuan by SC, and Hunan by HN.</p

Relevant literatures that linked with crop yield forecast using remotely sensed data literatures are sorted according to the crop types.

<p>Relevant literatures that linked with crop yield forecast using remotely sensed data literatures are sorted according to the crop types.</p

Results of the stepwise regression models for remotely sensed rice yield using AVHRR-derived NDVI measures as independent variables.

<p>R: multiple correlation coefficient.</p>*<p>significant at 0.05 level; ** significant at 0.01 level.</p

NVDI variables and their calculation formulas.

<p>NVDI variables and their calculation formulas.</p

Correlation coefficient (R) between the remotely sensed yields and NDVI variables during the rice growth period.

*<p>significant at 0.05 level; ** significant at 0.01 level, n = 23.</p

Observed versus predicted yields of rice (kg/ha) for the provinces of Heilongjiang (HLJ), Hunan (HN), Jiangxi (JX), Sichuan (SC) and Guangxi (GX) over the period 1982–2004.

<p>Observed versus predicted yields of rice (kg/ha) for the provinces of Heilongjiang (HLJ), Hunan (HN), Jiangxi (JX), Sichuan (SC) and Guangxi (GX) over the period 1982–2004.</p

Planted area and production changes for rice between 1979 and 2009 for different regions in the conterminous China.

<p>Planted area and production changes for rice between 1979 and 2009 for different regions in the conterminous China.</p

Observed and predicted rice yields (independent test).

<p>Observed and predicted rice yields (independent test).</p

Rice yield trends for the provinces' of Heilongjiang (HLJ), Hunan (HN), Jiangxi (JX), Sichuan (SC) and Guangxi (GX) from 1979 to 2006.

<p>Rice yield trends for the provinces' of Heilongjiang (HLJ), Hunan (HN), Jiangxi (JX), Sichuan (SC) and Guangxi (GX) from 1979 to 2006.</p