TY - Journal of Ecology and Rural Environment A1 - WANG Qiong, JIANG De-Juan, YU Jing, ZHANG Hua T1 - Spatio-Temporal Distribution of Nitrogen and Phosphorus and Spatial and Multi-Variable Statistical Analysis of Its Impacting Factors in Xiaoqinghe Watershed Y1 - 2015-03-25 JF - Journal of Ecology and Rural Environment JO - Journal of Ecology and Rural Environment SP - 137 EP - 145 VL - 31 IS - 2 UR - http://www.ere.ac.cn N1 - 10.11934/j.issn.1673-4831.2015.02.001 ER -