TY - JOUR
T1 - Plants in remediating salinity-affected agricultural landscapes
AU - Bhuiyan, Mohammad S I
AU - Raman, Anantanarayanan
AU - Hodgkins, Dennis
N1 - Includes bibliographical references.
PY - 2016/11
Y1 - 2016/11
N2 - Soil salinity is a widespread problem throughout the world. Salinization makes productive land unproductive. Thisproblem can be addressed by non-plant based, environment-friendly (e.g., leaching of salts, chemical amelioration of soils,structural engineering modifications) and plant-based remediation (e.g., phytoremediation). Non-plant based remediation provides rapid outcomes. However, they have several inherent problems, viz., they are energy and cost intensive, need tobe site specific, and are usually unsuitable in managing vast landscapes. In contrast, plant-based remediation, viz.,phytoremediation, is a slower process, but is economical and environment-friendly. Phytoremediation is applied in areasthat not only suffer salinity, but also in areas that include heavy-metal leachates such as mine areas and in landscapes thatsuffer sodicity. Further to improving soils by bringing them to near-natural conditions, phytoremediation, a worth while environment-friendly effort, provides many additional benefits such as improving nutrient availability in the restored soil.Keeping these in view, this article attempts to provide a comprehensive overview of salinity and its effect on plants,salinity-tolerance mechanisms in selected plants,various plant-based salinity remediation and management practices, suchas phytoextraction, phytostabilization, phytotransformation, phytovolatilization, and rhizodegradation, and their contextualrelevance. This overview while comprehensively summarizing the scientific bases in the historical and current developments in managing salinity-afflicted landscapes, should equip interested people in recruiting environmentally friendly managementof salt-affected agricultural landscapes especially in developing nations.
AB - Soil salinity is a widespread problem throughout the world. Salinization makes productive land unproductive. Thisproblem can be addressed by non-plant based, environment-friendly (e.g., leaching of salts, chemical amelioration of soils,structural engineering modifications) and plant-based remediation (e.g., phytoremediation). Non-plant based remediation provides rapid outcomes. However, they have several inherent problems, viz., they are energy and cost intensive, need tobe site specific, and are usually unsuitable in managing vast landscapes. In contrast, plant-based remediation, viz.,phytoremediation, is a slower process, but is economical and environment-friendly. Phytoremediation is applied in areasthat not only suffer salinity, but also in areas that include heavy-metal leachates such as mine areas and in landscapes thatsuffer sodicity. Further to improving soils by bringing them to near-natural conditions, phytoremediation, a worth while environment-friendly effort, provides many additional benefits such as improving nutrient availability in the restored soil.Keeping these in view, this article attempts to provide a comprehensive overview of salinity and its effect on plants,salinity-tolerance mechanisms in selected plants,various plant-based salinity remediation and management practices, suchas phytoextraction, phytostabilization, phytotransformation, phytovolatilization, and rhizodegradation, and their contextualrelevance. This overview while comprehensively summarizing the scientific bases in the historical and current developments in managing salinity-afflicted landscapes, should equip interested people in recruiting environmentally friendly managementof salt-affected agricultural landscapes especially in developing nations.
KW - Environmentally Friendly
KW - Organic Osmolytes
KW - Physiology
KW - Restoration
KW - Salt Ions
KW - Sequestration
KW - StressPhysiology
U2 - 10.16943/ptinsa/2016/48857
DO - 10.16943/ptinsa/2016/48857
M3 - Article
SN - 0370-0046
SP - 1
EP - 16
JO - Proceedings of the Indian National Science Academy
JF - Proceedings of the Indian National Science Academy
ER -