48 
Ganl. Bull. Singapore 70 (Suppl. 1) 2018 
Sin, Y.M., Wong, M.K., Chou, L.M. & Alias, N.B. (1991). A study of the heavy metal 
concentrations of the Singapore River. Environ. Monit. Assess. 19: 481-494. 
Sodhi, N.S., Koh, L.R, Brook, B.W. & Ng, RK.L. (2004). Southeast Asian biodiversity: an 
impending disaster. Trends Ecol. Evol. 19: 654-660. 
Sun, Y., Kim, D.Y., Wendi, D., Doan, D.C., Raghavan, S.V., Jiang, Z. & Liong, S.Y. (2018). 
Projected impacts of climate change on stream flow and groundwater of Nee Soon 
freshwater swamp forest, Singapore. Gard. Bull. Singapore 70 (Suppl. 1): 175-190. 
Taylor, D., Yen, O.H., Sanderson, P.G. & Dodson, J. (2001). Late Quaternary peat formation and 
vegetation dynamics in a lowland tropical swamp; Nee Soon, Singapore. Palaeogeogr. 
Palaeocl. 171: 269-287. 
Teo, W.T.C. (2016). Assessment of Soil Heavy Metal Concentrations within the Nee Soon 
Swamp Forest. B.Sc. (Hons) thesis, Geography Department, National University of 
Singapore, Singapore. 
Tropical Marine Science Institute (2016). Nee Soon Swamp Forest Biodiversity and Hydrology 
Baseline Studies Phase 2. Final project report. Singapore: Tropical Marine Science 
Institute, National University of Singapore. 
Wee, Y.C. & Ng, P.K.L. (1994). A first look at Biodiversity in Singapore. Singapore: National 
Council on the Environment. 
Zhou, C.Y., Wong, M.K., Koh, L.L. & Wee, Y.C. (1997). Soil lead and other metal levels in 
industrial, residential and nature reserve areas in Singapore. Environ. Monit. Assess. 44: 
605-615. 
Ziegler, A.D., Negishi, J.N., Sidle, R.C., Noguchi, S. & Nik, A.R. (2006). Impacts of logging 
disturbance on saturated hydraulic conductivity in a tropical forest in Peninsular 
Malaysia. Catena 67: 89-102. 
Ziegler, A.D., Terry, J.P., Oliver, G.J.H., Friess, D.A., Chow, T.W.L., Chuah, C.J., Wasson, R.J. 
(2014). Increasing Singapore’s Resilience to Drought. Hydrol. Process. 28: 4543-4548. 
