March 25, 2024 Ding, J. and D. J. Eldridge. 2020. Biotic and abiotic effects on biocrust cover vary with microsite along an extensive aridity gradient. Plant and Soil 450:429-441. Home » Ding, J. and D. J. Eldridge. 2020. Biotic and abiotic effects on biocrust cover vary with microsite along an extensive aridity gradient. Plant and Soil 450:429-441.