【摘要】 应用贝叶斯准则对农牧交错带粮食作物和天然牧草进行分区生态气候适应性综合评价分析表明 ,半干旱、干旱环境中牧草自然生态适应性明显优于粮食作物和春小麦 ,进而对农牧交错带进行了生态系统辨识。该生态气候适应性评价对牧草的生产能力具有较好的指示性更多还原

【Abstract】 By applying Bayes principle,the comprehensive evaluati on of eco-climate adaptability of crop and herbage was conducted in different are as in northern ecotone.The analysis indicates that in semi-drought and drought areas,the eco-climate adaptability of herbage is obviously better than that of crop and spring wheat.Thus an all-around identification of vegetations in north ern ecotone is presented,which can be used as a reliable reference in further structure adjustment in these areas.更多还原