清代科尔沁农耕北界的变迁

乌兰图雅, 张雪芹

Changes of the Cultivation Norhtern Limit for Horqin Region in the Qing Dynasty

WULAN Tu-ya, ZHANG Xue-qin

地理科学 . 2001, (3): 230 -235 . DOI: 10.13249/j.cnki.sgs.2001.03.230