放牧强度对克氏针茅草原的土壤酶活性和养分影响

Publisher: 国家哲学社会科学学术期刊数据库

E-ISSN: 1009-315x|17|1|6-9

ISSN: 1009-315x

Source: 大连民族学院学报, Vol.17, Iss.1, 2015-01, pp. : 6-9

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Abstract