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Wall, D.H. and Nielsen, U.N. (2012) Soil Biodiversity and Human Health. In: Wil-liams, A.M.V. and Wall, D.H., Eds., Soil Ecology and Ecosystem Services, Oxford University Press, 56-65.

has been cited by the following article:

• TITLE: Physico-Chemical Characteristics and Mineralogy of Soil in Catchment Areas around Penja-Manjo-Nkongsamba (Cameroon): Insights into Agriculture and Ecosystem Health

  AUTHORS: Linda Piezuh Bih, Germain Marie Monespérance Mboudou, Godswill Azinwie Asongwe, Thomson Areakpoh Eyong, Emmanuel Esseya Mengu Junior, David Dicken Okpara, Emile Nkeng Penn, Emilien Bih Bewah

  KEYWORDS: Physico-Chemical Properties, Mineral Phase, Penja-Manjo-Nkongsamba, Ecosystem Health, Agriculture

  JOURNAL NAME: Journal of Environmental Protection, Vol.16 No.9, September 30, 2025

  ABSTRACT: We examine the physico-chemical and mineralogical characteristics of soils of Penja-Manjo-Nkongsamba in Cameroon to evaluate their agricultural potential and ecosystem health. XRD, titration, photometry and statistics (multivariate and PCA) were used. The results show that the soils are generally loamy, slightly acidic [pH (H2O = 5.29) > pH (KCl = 4.66; 45%)] and composed of quartz (45% - 50%), kaolinite (10% - 40%), muscovite (10% - 35%), microcline (~5%), and minor haematite. These clay minerals are of low-activity type, can reduce heavy metal contamination, and promote soil fertility as well as crop productivity, but require careful management and control of agro materials in order to protect this ecosystem.