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Copyright of Journal of Agricultural Big Data is the property of Journal of Agricultural Big Data Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Transactions of the Chinese Society of Agricultural Engineering is the property of Chinese Society of Agricultural Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Ecology & Rural Environment is the property of Journal of Ecology & Rural Environment Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Climatic conditions, such as temperature, precipitation and high temperature damage, are closely related to rice yield. Based on 2 610 sampled data from farmer households and meteorological data in Hubei Province during 2003-2011, the spatial-temporal variations of heat damage in rice growing period were studied and a hierarchical model about rice yield and its factors was established in order to find the effects of temperature, precipitation and heat damage on rice yield as well as the nonlinear relations. The results are as follows. High temperature damage shows obvious spatial and temporal variation in Hubei Province. Temporally, high temperature damage shows a trend which first decline and then rise. Spatially, it is more serious in central and eastern regions, but less serious in western part and Jianghan Plain. Climate factors have obviously different impacts on rice yield, while high temperature harm has a significant negative effect on rice yield, and there is a significant inverted"U" relationship between the temperature and the rice yield. The influence of precipitation on rice yield is not significant. Besides, the input such as machinery and labor, and infrastructures such as irrigation, can improve rice yield significantly. Therefore, we can enhance the rice yield in Hubei Province by ways of strengthening meteorological disaster alarming and forecasting, improving farmland water conservancy facilities, optimizing sowing and selecting suitable varieties. [ABSTRACT FROM AUTHOR]