机译:阿拉善沙漠中四种优势植物的N:P比化学计量和Ca分数的季节动态
College of Life Sciences, Nankai University, Tianjin 300071, China;
College of Life Sciences, Nankai University, Tianjin 300071, China;
College of Life Sciences, Nankai University, Tianjin 300071, China;
College of Life Sciences, Nankai University, Tianjin 300071, China;