By Professor emeritus Har Darshan Kumar, Professor Dr. Donat-P. Häder (auth.)
This e-book supplies an total photograph of the final nation of the world's aquatic assets - rivers, lakes, wetlands and oceans - and of the atmospheric adjustments happening within the troposphere and the stratosphere. either ozone depletion within the stratosphere, resulting in a better occurrence of the dangerous ultraviolet-B radiation at the Earth's floor, and the adversarial influence of accelerating ground-level ozone are defined within the mild of modern study. The summarized clinical findings and perspectives support to spot and enforce sound preventive, corrective and remedial measures to deal with cutting-edge environmental problems.
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Extra resources for Global Aquatic and Atmospheric Environment
_ .. _.. _. Fig. 25. Groundwater overexploitation occurs when the long-term average extraction rate exceeds the long-term average recharge rate Fig. 26. Salt water intrusion into groundwater. In coastal aquifers, fresh groundwater is elegantly balanced on top of denser saline groundwater. 44 1 Aquatic Ecosystems The following problems can then arise: 1. 2. 3. 4. Shallow wells dry up, Production wells have to be drilled to progressively greater depths, Aquifers in coastal areas are contaminated by saltwater intrusion, or Subsurface materials may gradually compact and cause land surface subsidence.
Within the riverine environments, primary production sources also contribute carbon. -tm), and dissolved inorganic C (DIC). The organic C in the river may be respired (in water, in the sediments), ingested, stored, exported, and flocculated. DIC may be lost through erosion. 17 shows parts of global cycles of C, Nand P as related to increased fluxes of organic C to sediments. Some interactions between a floodplain wetland and its bordering river with regard to organic carbon flow are illustrated in Fig.
P-OC-: litte-r, de'-=-bris-,----, tmJ, atm. n 8 9 . . ~. :' ..... : weathering "j£" ~ ............ _ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I entrainment, mobilization (over land, groundwater) direct (litter fall, slump, erosion) riverine environment storage quantity and chemical quality of export to downriver and marine environments . Fig. 16. 82 X 1020 moles N 790,000 ppm res. 6 N2 fixed by auto, etc.
Global Aquatic and Atmospheric Environment by Professor emeritus Har Darshan Kumar, Professor Dr. Donat-P. Häder (auth.)