Influence of the physical properties of pumice and biochar amendments on the soil’s mobile and immobile water: implications for use in saline environments

Autor:	Marta Camps-Arbestain, Chao Kong, Brent Clothier, Etelvino Novotny
Rok vydání:	2021
Předmět:	Chemistry Soil Science Context (language use) Environmental Science (miscellaneous) Water retention Soil conditioner Environmental chemistry Pumice Soil water Biochar medicine medicine.symptom Porosity Water content Earth-Surface Processes
Zdroj:	Soil Research. 60:234-241
ISSN:	1838-6768 1838-675X
Popis:	Context Biochar and pumice have potential to improve soil water retention and mitigate salinity. However, little is known about their effect on salt transport in sandy soils. Aims We investigated the influence of the porosity and pore size distribution of soil amendments with pumice and biochar on the mobile water content of a New Zealand sandy soil. Methods Pumice and biochar (1.5-cm, 3-cm and 6-cm in diameter, Ø) were characterised using scanning electron microscope technology. The fraction of mobile water present in these amendments, previously added to a sandy soil at different application rates and particle sizes, was determined using a tracer (Na+) technique. Key results (1) Pumice exhibited a wider pore-size span than biochar; and (2) both materials had a predominance of pores with Ø
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f21977881950f1fe247c84c2ee695eca https://doi.org/10.1071/sr20327 Zobrazit plný text záznamu