洱海沉水植物碳、氮、磷化学计量学特征  

Stoichiometric Characteristics of Carbon,Nitrogen and Phosphorus in Submersed Macrophytes in Lake Erhai

作　　者：李锐[1] 田昆[1] 

机构地区：[1]西南林业大学国家高原湿地研究中心,云南昆明650224

出　　处：《绿色科技》2017年第8期1-3,共3页Journal of Green Science and Technology

基　　金：973计划前期研究专项(编号:2012CB426509);国家自然科学基金(编号:40971285;41001332)

摘　　要：指出了目前对于沉水植物碳(C)、氮(N)和磷(P)化学计量学的野外研究主要集中平原湖泊,而对于中富营养初期变化的洱海研究鲜见报道,为此,对洱海7种常见沉水植物的C、N和P的化学计量学特征进行了研究,结果表明:洱海沉水植物地上部分C、N和P含量平均值分为:320.6 mg/g、17.6 mg/g、2.84mg/g;洱海沉水植物地上部分C∶N、C∶P和N∶P比平均值分别为:19.89、129.17、6.51;沉水植物C、N和P含量之间呈显著相关,N与P含量的相关性要大于C与N及C与P含量的相关性。At present, the study on carbon （C）, nitrogen （N） and phosphorus （P） stoichiometry of submersed macro- phytes commonly focus on plain lake. However, there is little research onearly changes in the eutrophic Erhai Lake. Thus, we studied seven common submersed macrophytes on their chemometrics features of C, N and P in Erhai Lake. The results showed that： 1） the average contents of C, N and P were respectively 320.6 mg/g, 17.6 mg/G and 2.84 mg/g in the aerial parts of submerged oyster in Erhai Lake. 2） The ratio of C： N, C： P and N： P was re- spectively 19.89, 129.17 and 6.51 in the aerial parts of the submerged plants. 3） The contents of C, N and P were significantly correlated with N. But the correlation of N, P content was greater than that between C, N and C, P.

关 键 词：洱海 沉水植物 碳 氮 磷 化学计量学 

分 类 号：X524[环境科学与工程—环境工程]