The Possible Effects of Global Warming on Cropping Systems in China Ⅰ. The Possible Effects of Climate Warming on Northern Limits of Cropping Systems and Crop Yields in China
【Objective】 Increasing temperature in China significantly since the 1980s has become a consensus in the context of global climate change. How the change affected the agriculture or even the cropping system has attracted more and more attention of the government and scientists. In this study,the possible effects of climate warming on the countrywide northern limits of cropping systems,the northern limits of winter wheat and double rice,and the stable-yield northern limits of rainfed winter wheat -summer maiz...