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History of the Tamils from the Earliest Times to 600 A.D.
P. T. Srinivasa Iyengar
Limited preview - 1929
Plan B: Rescuing A Planet Under Stress And A Civilization In Trouble
Lester R. Brown
No preview available - 2004
The World Environmental Crisis
Keralas Geographical Setting and Its Environmental
Macro and Micro Ecological Zones
Land Use Changes
Changes in Landscape Ecology
Why the Environment is Changing
Introduction to Part II
activities agricultural Alappuzha Alappuzha district alluvium arecanut average backwaters biodiversity biomass canal catchment cent Centre CESS chapter Chattopadhyay climate coastal coastline coconut cover Cultivarea cultivation decline deforestation density drainage ecological economic ecosystem environment environmental erosion fertiliser fishing flood forest area global ground water groundwater hectares human intervention Idukki district increased India indicates irrigation Kerala Kollam Kottayam Kuttanad lake landscape lateritic lowlands major metres Mezhuveli micro level midland monsoon natural paddy fields Palakkad panchayat patterns planning plants pollution ponds population population density problems production programme rainfall region reservoirs resource base rice lands ridges river rubber plantations runoff rural Sasthamkotta Lake seasonal sediment settlements Silent Valley slopes soil sq km sustainable development tapioca Thiruvananthapuram Thiruvananthapuram district topography tree crops tropical tsunami types urban vegetation Vembanad Vembanad lake villages water bodies water quality water table watershed Wayanad Wayanad district Western Ghats wetlands Wildlife Sanctuary zone