Sign up to save your library
With an OverDrive account, you can save your favorite libraries for at-a-glance information about availability. Find out more about OverDrive accounts.
Find this title in Libby, the library reading app by OverDrive.

Search for a digital library with this title
Title found at these libraries:
Library Name | Distance |
---|---|
Loading... |
本研究在我国粮食主产区-黄淮海平原利用田间尺度的控制试验手段,对温度升高下冬小麦的生长发育过程和土壤C循环过程的变化进行了长期监测和分析。研究内容包括冬小麦生育期和产量变化以及不同耕作措施下土壤C排放对温度升高的响应过程等。研究发现:冬小麦自身对低幅度增温有一定的调节和适应能力,土壤温度升高2℃将不会影响华北灌溉农田的冬小麦产量;而当增温幅度超过2℃时,增温很可能会导致冬小麦倒伏而大幅度降低产量;增温会导致免耕措施下土壤碳分解加剧和碳排放的持续增加,需要重新评价保护性耕作措施碳固持特性对温度升高的响应。