Note: Biological accumulation of calcium carbonate in some lowland rice soils in the Philippines
Abstract
Four lowland rice soils were studied to evaluate the role of snails in the accumulation of CaCO3 in their topsoil and to identify the factors contributing to the occurrence of the process. The results showed that the CaCO3 is biological in origin, coming from the shells of the snails abundant in the rice field. The most important factors contributing to the process which we propose to name biocalcification, include the high calcium content of the irrigation water or the soil, continuous or prolonged wet condition and rice cultivation. It affects soil fertility by raising soil pH and consequently increasing the availability of calcium and magnesium but decreasing phosphorus and zinc availability.
Source or Periodical Title
Philippine Agricultural Scientist
ISSN
317454
Page
176-181
Document Type
Article
Subject
Biocalcification, Calcium carbonate, Shells, Snails, Swamps
Recommended Citation
Asio, Victor B. and Badayos, Rodrigo B., "Note: Biological accumulation of calcium carbonate in some lowland rice soils in the Philippines" (2021). Journal Article. 3444.
https://www.ukdr.uplb.edu.ph/journal-articles/3444