^pof;
Mountain;
Hazards;
and;
Environment,;
Chinese;
Academy;
of;
Sciences;
and;
Ministry;
of;
Water;
Conservancy,;
Chengdu;
610041;
(China);
^pUniversity;
of;
the;
Chinese;
Academy;
of;
Sciences,;
Beijing;
100049;
(China);
耕作侵蚀; 作物产量; 四川盆地; 土壤特性; 耕作措施; 中国; 土壤养分状况; 土壤有机质;