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。
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.
出处
《中国生态农业学报》
CAS
CSCD
2003年第4期130-133,共4页
Chinese Journal of Eco-Agriculture
基金
国家重点基础研究( 973)发展规划项目 (G2 0 0 0 0 1 86 0 6 )
"十五"国家重点科技攻关项目 ( 2 0 0 1BA 50 8D1 2 )
国家自然科学基金项目( 30 1 0 0 1 2 7)共同资助
