文献类型：期刊文献

英文题名：Suitability of hyperspectral data for monitoring nitrogen and phosphorus content in constructed wetlands

作者：Li, Wei[1,2,3] Dou, Zhiguo[1,2,3] Cui, Lijuan[1,2,3] Wang, Rumiao[1,2,3] Zhao, Zhijiang[1,2,3] Cui, Shifeng[4] Lei, Yinru[1,2,3] Li, Jing[1,2,3] Zhao, Xinsheng[1,2,3] Zhai, Xiajie[1,2,3]

第一作者：Li, Wei;李卫

通信作者：Cui, LJ[1]

机构：[1]Chinese Acad Forestry, Inst Wetland Res, Beijing, Peoples R China;[2]Beijing Key Lab Wetland Serv & Restorat, Beijing, Peoples R China;[3]Beijing Hanshiqiao Natl Wetland EcoSyst Res Stn, Beijing, Peoples R China;[4]Beijing Shunyi Dist Hanshiqiao Wetland Nat Reserv, Beijing, Peoples R China

年份：2020

卷号：11

期号：5

起止页码：495-504

外文期刊名：REMOTE SENSING LETTERS

收录：;EI(收录号：20200908248655);Scopus(收录号：2-s2.0-85081062201);WOS:【SCI-EXPANDED(收录号:WOS:000515810000001)】；

基金：This work was supported by the China's special fund for basic scientific research business of central public research institutes [CAFYBB2017MA028].

语种：英文

外文关键词：Ecosystems - Nitrogen - Phosphorus - Reflection - Remote sensing - Sediments

摘要：The nitrogen and phosphorus content in water and sediment is an important index for evaluating the nutritional status of wetland ecosystems. This study used an inversion model to assess the total nitrogen (TN) and total phosphorus (TP) content of constructed wetland using the canopy spectral reflectance data of four wetland plants. And then determine their relative suitability as a remotely sensed environmental monitoring tool. For water, the coefficient of determination (R-2) of floating plants (up to 0.92) was higher than that of emergent plants (up to 0.82). For sediment, the R-2 of TN inversion for S. natans was 0.59 and that of TP inversion for L. minor was 0.52, suggesting that floating plant canopy spectral reflectance data are more useful for assessing water directly, while indicators for the sedimentary environment can be assessed using emergent plants. Overall, the results clearly show that it is feasible to estimate water and sediment TN and TP content using plant canopy spectral reflectance data, providing the basis for widespread, rapid, and reliable monitoring of wetland ecosystem health via hyperspectral remote sensing. This study provides a reference for the timely development of further wetland restoration and protection measures.