TY - Journal of Geographical Sciences A1 - ZHU Huiyi, HE Shujin T1 - Land pressure and adaptation in the mountainous region of northern China: An empirical analysis of 21 small watersheds Y1 - 2010-12-15 00:00:00.0 JF - Journal of Geographical Sciences JO - Journal of Geographical Sciences SP - 913 EP - 922 VL - 20 IS - 6 UR - {https://www.geogsci.com/EN/10.1007/s11442-010-0820-7} N1 - 10.1007/s11442-010-0820-7 ER -