State Key Laboratory of Loess and Quaternary Geology;
Institute of Earth Environment;
Chinese Academy of Sciences;
Xi'an 710061;
China;
University of Chinese Academy of Sciences;
Beijing 100049;
China;
CAS Center for Excellence in Quaternary Science and Global Change;
Xi'an 710061;
China;
Xi'an Institute of Earth Environment Innovation;
Xi'an 710061;
China;
Interdisciplinary Research Center of Earth Science Frontier(IRCESF);
Beijing Normal University;
Beijing 100875;
China;
dammed-valley farmland; soil quality; soil salinization; groundwater; Chinese Loess Plateau;