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Please use this identifier to cite or link to this item:
http://krishi.icar.gov.in/jspui/handle/123456789/42283
Title: | HYDROLOGICAL IMPLICATIONS OF CONVERTING NATURAL GRASSLANDS INTO BLUEGUM PLANTATION IN NILGIRIS |
Other Titles: | Not Available |
Authors: | AK SIKKA JS SAMRA VN SHARDA P SAMRAJ V LAKSHMANAN |
ICAR Data Use Licennce: | http://krishi.icar.gov.in/PDF/ICAR_Data_Use_Licence.pdf |
Author's Affiliated institute: | ICAR::Indian Institute of Soil and Water Conservation |
Published/ Complete Date: | 1998-01-01 |
Project Code: | Not Available |
Keywords: | HYDROLOGICAL IMPLICATIONS, CONVERTING, NATURAL GRASSLANDS, BLUEGUM PLANTATION, NILGIRIS |
Publisher: | Not Available |
Citation: | Not Available |
Series/Report no.: | Not Available; |
Abstract/Description: | THE HYDROLOGICAL BEHAVIOUR OF TWO SMALL IDENTICAL WATERSHEDS ; ONE WITH NATURAL GRASSLAND AND "SHOLA" FOREST AND THE OTHER WITH EUCALYPTUS GLOBULUS ( BLUEGUM) PLANTATION WAS STUDIED FROM 1968 TO 1992 FOLLOWING THE PAIRED WATERSHED TECHNIQUE IN THE NILGIRIS IN WESTERN GHATS OF SOUTH INDIA. FOLLOWING THE CALIBRATION PERIOD FROM 1968-71, BLUEGUM PLANTATION WAS RAISED IN 59% AREA OF A WATERSHED ABOVE THE FROST LINE DURING 1972 AND IT WAS FELLED AFTER FIRST ROTATION OF THE COPPICED BLUEGUM. REGRESSION AND DOUBLE MASS CURVE TECHNIQUES WERE EMPLOYED TO ANALYSE THE STREAMFLOW DATA TO DETERMINE CHANGES IN WATER YIELDS. FLOW DURATION CURVES AND LOW FLOW INDEX ( LFI) WERE USED TO QUANTIFY THE EFFECT OF BLUEGUM ON LOW FLOW REGIME. EFFECT OF BLUEGUM ON HIGH FLOWS WAS INVESTIGATED USING SIMPLE RATIOS, REGRESSION ANALYSIS,CUMULATIVE FREQUENCY PLOTS AND PROBABILITY ANALYSIS. GROWTH PARAMETERS OF GRASSLAND AND BLUEGUM PLANTATION WERE ALSO STUDIED. CONVERSION OF NATURAL GRASSLAND INTO BLUEGUM PLANTATION REDUCED SEASONAL AND ANNUAL WATER YIELDS, DECREASED LOW FLOW AS WELL AS DECREASED PEAK FLOWS AND INCREASED SOIL MOISTURE LOSSES. THESE EFFECTS WERE MORE PRONOUNCED DURING THE SECOND ROTATION I.E FIRST COPPICED GROWTH AS COMPARED TO THE FIRST ROTATION. |
Description: | Not Available |
ISSN: | Not Available |
Type(s) of content: | Research Paper |
Sponsors: | Not Available |
Language: | English |
Name of Journal: | Not Available |
Volume No.: | Not Available |
Page Number: | Not Available |
Name of the Division/Regional Station: | Not Available |
Source, DOI or any other URL: | Not Available |
URI: | http://krishi.icar.gov.in/jspui/handle/123456789/42283 |
Appears in Collections: | NRM-IISWC-Publication |
Files in This Item:
File | Description | Size | Format | |
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scan0001.pdf | 107.28 kB | Adobe PDF | View/Open |
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