[29] Robert L Knight, Victor WE, Payne J r B, et al. Constructed wetlands for livestock wastewater management[J]. Ecological Engineering, 2000, 15: 41-55.
[30] Stacy L. Ozesmi, Marvin E. Bauer. Satellite remote sensing of wetlands[J]. Wetlands Ecology and Management[J].2002,10(5): 381-402.