Major Gene Pool Centres by Nicolay Vavilov

Nicolay Vavilov introduced his ideas on the origin of different agricultural crops in the year 1951. He took a leaf from Darwin’s book and hypothesized that the most fit plants stay alive even after many bouts of succession. Some of these plants were useful for human consumption, therefore, they started growing them as crops. The … Read more

Cultural Realms of World

Brock Webb argued that a particular phenomena dominates the cultural landscape. He considered religion to be the largest dominant cultural trait which defines the other cultural traits of a region. Above all, he argued that the cultural distinction is lost once the effect of the religion is withdrawn. Webb divided the world into four major … Read more

Introduction to Cultural Geography

Cultural geography is the study of impact of environment on cultural landscape and vice-versa. In simple words, the cultural geography studies the way environment and human culture shape each other across different regions of the world. Carl O Sauer is considered the Father of Cultural Geography. Culture in geography is not just the way of … Read more

Cultural Hearths of the World

Concept of Cultural Hearth is associated with Carl O Sauer. Cultural hearths are geographic areas from where the major cultures of the world have originated. In other words, these are also the centers of scientific, economic and political innovation. Later, these innovations diffused from these regions to the rest of the world through trade, invasions, … Read more

Coriolis Force and Pressure Gradient Force

Coriolis Force and Pressure Gradient Force (PGF) along with Frictional Force are three important forces which determine the direction, speed and curvature of winds both horizontally and vertically. What is Coriolis Force? Coriolis force is the force which is exerted by the rotating Earth on the objects moving on its surface. For example, any moving … Read more

What are Isopleths and Their Types

Isopleths are the lines which connect the areas with same values of a given parameter. For example, we use isopleths or isolines for mapping atmospheric pressure, temperature, rainfall etc. To clarify, please note that the units of measurement are different for different parameters. Some of the important isopleths are as following. Types of Isolines 1. … Read more

Why Monsoon in India Arrive in Summer?

Monsoon is derived from an Arabic word ‘mausin’ which refers to the seasonal reversal of winds. The Arab traders used to sail their ships to India with the help of these winds. Monsoon in India is an annual phenomena and acts as the rhythm to which most socio-cultural and economic phenomenon align. Definition of Monsoon? … Read more

हीट वेव क्या है?

इस समय उत्तर भारत बहुत गर्म मौसम की चपेट में है। भारत में मार्च से जून के महीनों के दौरान एक आम व्यक्ति बहुत बार हीट वेव्स की खबरें सुनता है। इस लेख में हम हीट वेव की सटीक परिभाषा और हीट वेव्स के कारण पर चर्चा करेंगे। हीट वेव्स क्या है? हम अक्सर सोचते … Read more

What is Heat Wave and its types?

Presently, North India is reeling under very hot weather. A common person hears the news of heat wave very often during the months from March to June in India. In this article we will discuss the exact definition of heat waves and the reason of heat waves. What is Heat Wave? We, often, think that … Read more

Difference Between Net Sown Area and Gross Cropped Area

Net Sown Area and Gross Cropped Area are two concepts which are used repeatedly to indicate the intensity of land use in agricultural sector. What is Net Sown Area? It is total area which is cultivated in an agricultural year. For instance, assume that the total land in a country is 100²Kms and 45²Kms. out … Read more