Citation: Tang, X.; Adesina, J.A. Biodiversity Conservation of National Parks and Nature-Protected Areas in West Africa: The Case of Kainji National Park, Nigeria. Sustainability 2022, 14, 7322. https:// doi.org/10.3390/su14127322 Academic Editors: Qingwen Min, Jian Peng, Yehong Sun and Lingyun Liao Received: 15 May 2022 Accepted: 6 June 2022 Published: 15 June 2022 Publisher’s Note: MDPI stays neutral with regard to jurisdictional claims in published maps and institutional affil- iations. Copyright: © 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ 4.0/). sustainability Article Biodiversity Conservation of National Parks and Nature-Protected Areas in West Africa: The Case of Kainji National Park, Nigeria Xiaolan Tang 1,2, * and John Adekunle Adesina 1 1 College of Landscape Architecture, Nanjing Forestry University, Nanjing 210037, China; adesinajohnlloyd@gmail.com 2 NFU Academy of Chinese Ecological Progress and Forestry Development Studies, Nanjing 210037, China * Correspondence: xiaolant@njfu.edu.cn Abstract: Due to rising global warming and climate change, biodiversity protection has become a crit- ical ecological concern. Rich biodiversity zones are under threat and are deteriorating, necessitating national, regional, and provincial efforts to safeguard these natural areas. The effective conservation of national parks and nature-protected areas help to improve biodiversity conservation, forest, and urban air quality. The continuous encroachment and abuse of these protected areas have degraded the ecosystem over time. While exploring the geophysical ecology and biodiversity conservation of these areas in West Africa, Kainji National Park was selected for this study because of its notable location, naturalness, rich habitat diversity, topographic uniqueness, and landmass. The conservation of national parks and nature-protected areas is a cornerstone of biodiversity conservation globally. This study is aimed at the target United Nations’ Sustainable Development Goal 13, 2030—Climate Action targeted at taking urgent action towards combating climate change and its impacts. The study captures both flora and fauna that are dominant in the study area. The 15 identified tree species were selected from over 30 species with 563,500,000 (an average of 3,700,000 in each sample frame) trees for every tree species/type with a total of 63% tree green canopy cover. The study areas divided into three zones were randomly sampled within a stratum of 25 × 25 km frames divided into 150 sample frames for proper analyses using the i-Tree Eco v6.0.25. It is a United States Department of Agriculture (USDA) Forest Service peer-reviewed application (software) designed which includes tools for urban and rural forestry study and benefits evaluations. The following microclimatic data were captured and analyzed photosynthetically active radiation, rain/precipitation, temperature, transpiration, evaporation, water intercepted by trees, runoff avoided by trees, potential evaporation by trees, and isoprene and monoterpene by trees. This study also further discusses the tree benefits of a green, low carbon, and sustainable environment within the context of biodiversity conservation, considering carbon storage, carbon sequestration, hydrology effects, pollution removal, oxygen production, and volatile organic compounds (VOCs). There is a quick need for remotely-sensed information about the national parks, protected areas and nature reserves at regular intervals, and government policies must be strict against illegal poaching, logging activities, and other hazardous human impacts. Keywords: carbon storage and sequestration; climate change; habitat diversity; Kainji National Park; protected areas; air quality 1. Introduction Biological richness is considered “the variability among living species from all sources, including terrestrial, marine, and other aquatic habitats, as well as the ecological complexes of which they are a part” [1]. The convention’s main goals are to conserve biodiversity, ensure the long-term viability of biodiversity components, and ensure equality in the allo- cation of genetic natural resources. Natural resources, public benefits, and environmental drivers of change are three components of biodiversity protection, as defined by the United States Environmental Protection Agency [2], and depicted in Figure 1. In this context, Sustainability 2022, 14, 7322. https://doi.org/10.3390/su14127322 https://www.mdpi.com/journal/sustainability