Water Quality Assessment of Qingshan National Wetland Park Base on the Nutrition Status Index and Grey-mode Identification Model

RAO Ji-gang, ZHANG Ting, RAO Xing-wang, MAO Sheng-ming, ZHONG Xue-bin, CHEN Zhi

HUBEI AGRICULTURAL SCIENCES . 2019, (1): 39 -43 . DOI: 10.14088/j.cnki.issn0439-8114.2019.01.009