What is soil erosion? Soil erosion is a natural process‚ occurring over geological time‚ and indeed it is a process that is essential for soil formation in the first place. With respect to soil degradation‚ most concerns about erosion are related to accelerated erosion‚ where the natural rate has been significantly increased mostly by human activity. Soil erosion by water is a widespread problem throughout Europe. Soil is naturally removed by the action of water or wind: such ’background’
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LUSH FIELDS AND PARCHED THROATS: The Political E C O ~ O ~Groundwater in Gu-iarat of N Bela Bhatia Setu: Centre f i r Social Knowledge and Action (Ahmedabad) July I992 ACKNOWLEDGMENTS This study is motivated and informed by my fist-hand experience of social action in the rural areas of Sabarkantha dismct (North Gujarat) during the period 1985-9C‚ which included (I severe drought. I would like to thank my co-workers in Shramjivi Samaj‚ especially Karsanbhi‚ Rarnilaben‚ Nainaben‚ Heerabhai
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POLLUTION INTRODUCTION Pollution is the act of environmental humiliation and contamination with artificial waste. Air‚ water‚ and soil pollution is a serious complication‚ which affects everyone in the world. Some of the main causes of pollution is the lack of laws to new industries as well as a poorly educated society. Due to environmental pollution‚ the society has put pressure on the government to create and carry out diverse policies to the control of environmental pollutants. LAND POLLUTION
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in: a) ASAL ecosystems and b) Tundra ecosystems. 1. Critically examine the relevance of the theory of natural selection in biogeographical studies. DATE: AUGUST‚ 2011. ARID AND SEMI-ARID LANDS ECOSYSTEMS Introduction The deserts of the world are areas in which there is a great deficit of water. They are areas with great moisture shortage. This is usually determined by the high temperatures that determine many of the characteristics of the soils‚ the vegetation
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FOREST ECOSYSTEM Submitted by: Submitted to: Forest Ecosystem Table of Contents (Outline) I. Introduction II. The Structure of Forests III. Kinds of Forest IV. The Distribution of the Forests V. Forests Succession VI. The History of Forests VII. Deforestation VIII. Conclusion IX. Endnotes X. Bibliography Forest Ecosystem I. Introduction A forest‚ also referred to as a wood or the woods‚ is an area with
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2013 Aquatic Ecosystem Function An ecosystem can be defined as “all the organisms in a given area as well as the abiotic factors with which they interact” (Reece et al. 2010). Common aquatic ecosystems range from the largest oceans to the smallest creeks‚ but each aquatic ecosystem plays a pivotal role in global ecology. Each ecosystem consists of important aspects including nutrients cycling‚ biodiversity‚ and energy flow that contribute to the overall state of the ecosystem. However‚ the limited
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wetland is a land area that is saturated with water‚ either permanently or seasonally‚ such that it takes on the characteristics of a distinct ecosystem.[2] Primarily‚ the factor that distinguishes wetlands from other land forms or water bodies is the characteristic vegetation that is adapted to its unique soil conditions. Wetlands consist primarily of hydric soil‚ which supports aquatic plants.[3][4] The water found in wetlands can be saltwater‚ freshwater‚ or brackish.[4] Main wetland types include
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A soil horizon is a layer parallel to the soil surface‚ whose physical characteristics differ from the layers above and beneath. Each soil type has at least one‚ usually three or four horizons. Horizons are defined in most cases by obvious physical features‚ chiefly colour and texture. These may be described both in absolute terms (particle size distribution for texture‚ for instance) and in terms relative to the surrounding material‚ i.e. ‘coarser’ or ‘sandier’ than the horizons above and below
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Ecosystem Components The Tarkine rainforest is located off Australia‚ on an island known as Tasmania. The Tarkine rainforest is the second largest temperate rainforest in the world. Temperate rainforests are extremely rare. It runs continuous for more than 70 kilometers and contains the Rapid‚ Keith‚ Donaldson‚ and Savage River systems. Globally‚ this is one of the most significant rainforests‚ which is temperate‚ left of the plant. The Tarkine rainforest contains three out four of Tasmania’s
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Soil‚ which is one of the most important natural resources‚ is often less heeded. The importance of soil conservation is relatively less talked about as compared to the conservation of water and other natural resources. The almost-omnipresent soil is mostly taken for granted. Its omnipresence is ironically the reason behind us‚ human beings‚ taking it for a ride. We rarely even think of it as a natural resource that needs to be conserved‚ a part of the natural wealth that needs to be preserved.
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