Trop. Wetland J. 2022: 8(1): 1-7 1 Journal homepage: twj.ulm.ac.id½Published by Postgraduate Program - Lambung Mangkurat University½e-ISSN: 2654-279X Original article DOI 10.20527/twj.v8i1.107 The Distribution Mapping for Environmental Evaluation of Waterlily (Nymphaea pubescens Willd.) Growing in Lebak Swampland in Kalimantan Selatan Province Bakti Nur Ismuhajaroh 1 , Rosalina Kumalawati 2 *, Astinana Yuliarti 3 , Karnanto Hendra Murliawan 4 , Rizky Nurita Anggraini 5 , Asri Alkirani 6 1 Agronomi, Faculty of Agriculture, Lambung Mangkurat University, Indonesia 2 Geography, Faculty of Social and Political Science, Lambung Mangkurat University, Indonesia 3 Communication Science, Faculty of Social and Political Science, Lambung Mangkurat University, Indonesia 4 Ministry of Agrarian & Spatial Plan/National Land Agency, Indonesia 5 Student of Geography, Faculty of Social and Political Science, Lambung Mangkurat University, Indonesia 6 Student of Communication Science, Faculty of Social and Political Science, Lambung Mangkurat University, Indonesia * Correspondence: Rosalina.kumawati@ulm.ac.id; Tel. +62-812-1580082 Received: 04 April 2022; Accepted: 07 July 2022; Published: 27 July 2022 ABSTRACT Nymphaea pubescens is one of the aquatic plants that grow in the lebak area and is widely used as food and medicine by the local community. The N. pubescens growing environment determines its growth. The distribution of N. pubescens plants has not been well identified. This study aimed to determine the distribution of N. pubescens mapping for environmental evaluation of N. pubescens growing in Teluk Sinar Village, Sungai Pandan District, Hulu Sungai Utara Regency, Kalimantan Selatan Province. The study used data collection methods with primary and secondary data survey techniques. Primary survey through delineation of N. pubescens plant boundaries in the field. Field measurements were also carried out to identify the environmental variables of N. pubescens growing. In addition, the interpretation of high–resolution satellite imagery and low–resolution satellite imagery for spectral analysis. The environmental variables for growing N. pubescens include water depth, light penetration depth, water pH, and sediment pH. The N. pubescens distribution map was obtained through overlaying several thematic maps, image interpretation, and field measurements using ArcView and ArcGIS software. The results of the study revealed a map of the distribution of N. pubescens plants can grow optimally in the middle lebak with an environment that has a water depth of 50–100 cm, a light penetration depth of 23–100 cm, a water pH of 6.25–8.37, and a sediment pH of 3.33–4.69. The results of the N. pubescens Distribution Mapping and the N. pubescens growing environment obtained can be used as a basis for determining the potential distribution of N. pubescens in each region. Keywords: environment, evaluation, lebak swampland, mapping, nymphaea pubescens 1. Introduction The N. pubescens is a species with leaves that float on the surface of the water while the roots are on the ground (Fitrial, 2009; Ismuhajaroh et al., 2022). The N. pubescens can live in tropical to temperate climates occupying freshwater, ponds, swamps, shallow lakes, and calm flowing rivers (Fitrial, 2009; Guruge et al., 2016; Raja et al., 2010). Indonesia is one of the countries that has a fairly large swamp