changes in soil bulk density
changes in soil organic carbon and total nitrogen
Hg anomalies in soil in urban
abrupt changes in the cross-sectional area of a tu
abrupt changes in the cross-sectional area of a tunnel
annual changes in water quality categories
Biochemical changes in blood and milk
changes in cold regions ecological environments
Changes in corneal membranes
Changes in electrocardiogram
Changes in endemic situation
changes in erosion and deposition
changes in erosion and silt
changes in flow velocity
Changes in forest resources
changes in land use and land cover