Author(s) :

Rigobert Zola Lunga, Cush Luwesi Ngonzo , Bonaventure Nyami Lele, Carmel Manzanza Kifukieto, Roger Vumilia Kizungu, Ruffin Nsielolo Kitoko, Yves Aseke Lukuke, Doudou Mayaka Kintu, Géniespirou Lutonadio, Patience Mpia Ngelikoto.

Volume/Issue :

Abstract :

This study analyzes land use dynamics and floristic diversity in the Ilodi lake system, located in Kwango Province (DRC), in order to determine the environmental changes occurring in tropical lake systems at the local level. The methodology combined multi-temporal remote sensing (Landsat 7 and 9 imagery), Geographic Information Systems, and field-based floristic inventories from 2000 to 2022. Results reveal a significant decline in tree vegetation, from 79.6 ha in 2000 to 29.7 ha in 2022, a negative change of –0.6, while savanna formations expanded by +0.3. The Normalized Difference Vegetation Index ranged from 0.28 to 0.36, indicating moderate to high photosynthetic activity in certain areas, whereas the Normalized Difference Water Index reached 0.2 in 2022, reflecting an expansion of the water surface. Twelve lacustrine plant species were identified, dominated by Araceae such as Lasimorpha senegalensis and Anchomanes difformis. These results highlight the strong anthropogenic pressure and climatic variability impacting small tropical lake systems. It thus provides a scientific baseline for environmental monitoring and participatory management of wetland ecosystems.

No. of Downloads :

0