Not Available

Not AvailableIN A TWO YEAR (1982-84) FIELD STUDY ON BARREN SODIC SOIL , THE SOIL WATER (0-240 CM DEPTH) AND TEMPERATURE REGIMES OF THE RIDGE TRENCH SYSTEM (RTS) WERE COMPARED WITH THOSE OF THE USUAL FLAT SURFACE PLANTING SYSTEM (FSPS) . OUT OF 295 AND 585 MM OF MONSOON RAINFALL IN 1982 AND 1983, THE SOIL WATER CONTENT INCREASED BY 88 AND 132 MM IN RTS AS AGAINST 58 AND 79MM IN FSPS, RESPECTIVELY BUT THE RIDGES TENDED TO DRY UP FASTER THAN FLAT SURFACE IN THE DRY POST- MONSOON MONTH OF OCTOBER AND NOVEMBER. THE SOIL WATER DEPLETION FROM DECEMBER TO JUNE WAS 242 MM IN RTS AND 108MM FROM THE PROFILE OF FSPS. THE RIDGES WERE COOLER BY 1 TO 2 DEGREE CELSIUS DURING DAY TIME IN WINTER AND WARMER THAN FLAT SURFACE BY 1 TO 2 DEGREE CELSIUS IN FORENOON AND 5 TO 6 DEGREE CELSIUS IN THE AFTERNOON HOURS DURING THE SUMMER. THE HIGHER LOSS OF WATER FROM RTS AS COMPARED TO FSPS NEGATED THE BENEFITS OF ADDITIONAL STORAGE MADE DURING THE MONSOONS. AS A RESULT , NO BENEFIT OF RTS WAS OBSERVED DURING TWO YEAR GROWTH OF ACACIA NILOTICA (LINN) AND PARKINSONIA ACULEATA (LINN) . EUCALYPTUS TERETICORNIS ( SMITH) RATHER PERFORMED BETTER IN FSP SYSTEM.Not Availabl

Not Available

Not AvailableTHE PAPER DEALS WITH DIFFERENT TYPES OF SOIL EROSION ND SEDIMENTATION PROBLEMS IN INDIA, GIVING MAGNITUDE AND AREA AFFECTED BY SHEET, GULLY AND HILLSIDE EROSION AND ALSO SEDIMENT DEPOSITION IN SOME RESERVOIRS. IT REVIEWS CONSERVATION MEASURES , MOSTLY ON THE BASIS OF RESEARCH CONDUCTED AT CSWCRTI , DEHRADUN AND ITS CENTRES, FOR ARABLE AS WELL AS NON - ARABLE LANDS . RECLAMATION OF RAVINES AND CONTROL OF LANDSLIDES IN HIMALAYAS ARE ALSO DISCUSSED.Not Availabl

Not Available

Not AvailableTHE BOOK DEALS WITH THE RELEVANT TECHNOLOGIES GENERATED AT SEVERAL RESEARCH CENTRES OF THE ICAR FOR THE MANAGEMENT OF DEGRADED LANDS. THEY ARE BEING CONSTANTLY IMPROVED UPON AS MORE KNOWLEDGE ON THE NATURE OF DEGRADATION PROCESSES AND THEIR MANAGEMENT IS BEING GAINED. THE PROBLEMS OF ARID AND SEMI- ARID REGIONS ARE DISCUSSED IN SECTIONS II AND III AND SALT- AFFECTED SOILS AND THEIR MANAGEMENT INCLUDING PROBLEMS OF WATERLOGGING HAVE BEEN PRESENTED IN SECTION V. THE PROBLEM OF WATER EROSION IS PERHAPS THE MOST SERIOUS LAND DEGRADATION PHENOMENON , IS DISCUSSED IN SECTION IV. APART FROM SPECIFIC TECHNOLOGIES THE SOCIAL AND ECONOMIC ISSUES INVOLVED IN ADOPTING THESE TECHNOLOGIES ON A FIELD SCALE HAVE BEEN DISCUSSED IN SEPARATE ARTICLES.Not Availabl

Not Available

Not AvailableAN ATTEMPT HAS BEEN MADE TO PREPARE SOIL EROSION RATE MAP OF INDIA. FOR THIS, AVAILABLE MAPS OF SOIL , RAINFALL EROSIVITY , SLOPE, LANDUSE, FOREST , DEGRADED LANDS, SAND DUNES AND IRRIGATION HAVE BEEN UTILIZED . SOIL LOSS DATA FROM VARIOUS RESEARCH STATIONS , WATERSHEDS AND SEDIMENTATION OF RESERVOIRS WERE MADE USE OF . SOIL LOSSFOR NUMBER OF PLACES WERE ESTIMATED USING UNIVERSAL SOIL LOSS EQUATION. BASED ON THESE 21 OBSERVED AND 64 ESTIMATED SOIL LOSS DATA POINTS SPREAD OVER DIFFERENT LAND RESOURCE REGIONS OF THE COUNTRY AND SUPERIMPOSING EIGHT- ABOVE MENTIONED MAPS, ISO- EROSION RATE LINES ON MAP OF INDIA WERE DRAWN. THIS MAP WILL PROVE HANDY TOOL FOR PLANNERS, WATERSHED MANAGES AND POLICY MAKERS TO DEVELOP APPROPRIATE LANDUSE FOR ACHIEVING SUSTAINED PRODUCTIVITY.Not Availabl

Not Available

Not AvailableAN ATTEMPT HAS BEEN MADE TO PREPARE SOIL EROSION RATE MAP OF INDIA. FOR THIS , AVAILABLE MAPS OF SOIL, RAINFALL EROSIVITY , SLOPE, LANDUSE , FOREST, DEGRADED AND, SAND DUNES AND IRRIGATION HAVE BEEN UTILIZED . SOIL LOSS DATA FROM VARIOUS RESEARCH STATIONS, WATERSHEDS AND SEDIMENTATION OF RESERVOIRS WERE MADE USE OF. SOIL LOSS FOR NUMBER OF PLACES WERE ESTIMATED USING UNIVERSAL SOIL LOSS EQUATION. BASED ON THESE 21 OBSERVED AND 64 ESTIMATED SOIL LOSS DATA POINTS SPREAD OVER DIFFERENT LAND RESOURCES REGIONS OF THE COUNTRY AND SUPERIMPOSING EIGHT ABOVE- MENTIONED ,MAPS, IO- EROSION RATE LINES ON MAP OF INDIA WERE DRAWN. THIS MAP WILL PROVE HANDY TOOL FOR PLANNERS , WATERSHED MANAGERS AND POLICY MAKERS TO DEVELOP APPROPRIATE LANDUSE FOR ACHIEVING SUSTAINED PRODUCTIVITY.Not Availabl