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Due to irregular, uncertain and limited rainfall, scarcity of water is caused.Sometimes, it can rain heavily and for a long duration, whereas sometimes it can be light and for a short duration.Consequently, the need for ______ arises.
irrigation
There is greater need of irrigation in sandy soil whereas in clay or alluvial soil, the need for ______ is limited
irrigation
Irrigation becomes necessary on account of the ______ of Rainfall
Nature
At places of ______, irrigation is essential
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In dry areas, where rainfall is less than 40 to 50 cm per year, the need arises for ______
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Crops like rice, jute, sugarcane, etc.need more water, which can be fulfilled only through ______
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In such circumstances, we have to arrange supply of water for crops through _______ means for fulfilling their primary needs.
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Irrigation becomes necessary on account of the following reasons: Nature of Rainfall, Nature of Soil, Increase of Population, Need of Irrigation in Dry Areas, Human Geography, More Need of Water for Special Crops, More Need of Water for Improved Seed Varieties, For Pasture Development, Probability of _______.
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What are the main sources of irrigation in India? Wells and tube wells, canals and _______.
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Distinguish between Inundation and perennial canals: Inundation canals are taken out directly from rivers, without constructing barrage or dam, which remain operational during _______ season only.
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Mention any two inherent drawbacks of tank irrigation: 1. Tanks get silted up soon. 2. Most of the Tanks are non-perennial and become dry during winter and summer seasons when water is urgently required. Therefore, they are not dependable source of _______.
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Distributing Water resources are highly varied. While some areas are dry some are wet and humid. In such circumstances, we have to arrange supply of water for crops through _______ means for fulfilling their primary needs.
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Shifting cultivation involves cutting trees, burning them, and growing crops in traditional ways. The tribal people move from one place to another clearing the forests for growing crops. When the soil fertility is exhausted, new patches of forest land are cleared again. Sedentary or settled agriculture has encouraged ______ settlement.
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Commercial Farming, with the development of scientific technology, introduced plantation agriculture with huge investment. The percentage of people involved in agriculture is declining. It is only 4 percent in the UK, but it is 60 percent in India, 80 percent in Kenya. Agriculture is mostly mechanized in the developed countries. Give an account of lumbering in the World: Lumbering is an act of gathering forest products for livelihood by man. The lumbering activity is divided into two types, namely: 1. Lumbering in the temperate forest and 2. Lumbering in the tropical forest. For example, in Canada, Russia, Sweden, Finland, and Norway have extensive ______ forests.
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Lumbering in Canada involves coniferous forests covering about 50-60 percent of the total land area. Lumbering has developed in these regions due to several reasons given below. Single variety of trees are distributed in a large area. Wood is utilized for the manufacturing of wood pulp, paper, and building materials. Lumbering in the tropical forest is different from that in the temperate forest due to the type of trees and ______ conditions.
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The impact of droughts on agriculture can be severe, leading to ______ of soil fertility.
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In areas where droughts are frequent, the practice of shifting cultivation may be more challenging due to the increased risk of ______ of crops.
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Implementation of irrigation systems is crucial in regions prone to droughts to ensure ______ water supply for crops.
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