牧鸡密度与取样时间对沙质草地土壤氮素有效性的影响
史胜南1,2,于占源1,3**,曾德慧1,3,韩兴国1
Effects of chicken-grazing intensity and sampling time on soil nitrogen availability in sandy grassland.
SHI Sheng-nan1,2, YU Zhan-yuan1,3**, ZENG De-hui1,3, HAN Xing-guo1
生态学杂志
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2013, (8): 2120
-2125
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