AN UPWARD TREND IN RUNOFF PRODUCTION OF THE KHAR-RUD WATERSHED

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RAHBAR E.; PAKPARVAR M.; MASOUDI M.; JOUKAR LADAN

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Paper Information

Journal: IRANIAN JOURNAL OF RANGE AND DESERT RESEARCH Year:2005 | Volume:12 | Issue:4 (21) Page(s): 357-375

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Title

AN UPWARD TREND IN RUNOFF PRODUCTION OF THE KHAR-RUD WATERSHED

Author(s)

RAHBAR E. | PAKPARVAR M. | MASOUDI M. | JOUKAR LADAN | Issue Writer Certificate

Keywords

RUNOFFQ2

KHAR-RUD WATERSHEDQ4

QAZVINQ2

SALT LAKE BASINQ3

Abstract

RUNOFF production on watersheds is a natural phenomenon, whose intensity depends on many factors. Assuming a constant mean annual precipitation (MAP), an increase in RUNOFF yield is an indication of the unsustainable management of natural resources on watersheds. Continuation of this trend leads to the lower productivity of the land and environmental degradation (desertification) from the headwaters to the terminal point of water disposal. This unfortunate trend is prevalent on most watersheds in the land of the I.R.of Iran. Statistical analysis of the MAP and RUNOFF data collected during the 1966-1995period revealed that in spite of a relatively constant MAP, and a small decrease in the mean annual temperature (as snow forms about 8% of the MAP), the RUNOFF volume, and the RUNOFF: rainfall ratio have significantly increased in the study period. This, for the annual RUNOFF amounted to 25.5million m3 for 1995. The RUNOFF: rainfall ratio has increased trom10.8% in 1966 to 13.4% in 1995.Needless to say that this increased RUNOFF does not contribute to vegetative production either on the watershed or the salt lake that receives the flow downstream of the Ab Garm Hydrometry Station, thus this most precious commodity in deserts is totally wasted.

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APA: Copy

RAHBAR, E., PAKPARVAR, M., MASOUDI, M., & JOUKAR, LADAN. (2005). AN UPWARD TREND IN RUNOFF PRODUCTION OF THE KHAR-RUD WATERSHED. IRANIAN JOURNAL OF RANGE AND DESERT RESEARCH, 12(4 (21)), 357-375. SID. https://sid.ir/paper/106841/en

Vancouver: Copy

RAHBAR E., PAKPARVAR M., MASOUDI M., JOUKAR LADAN. AN UPWARD TREND IN RUNOFF PRODUCTION OF THE KHAR-RUD WATERSHED. IRANIAN JOURNAL OF RANGE AND DESERT RESEARCH[Internet]. 2005;12(4 (21)):357-375. Available from: https://sid.ir/paper/106841/en

IEEE: Copy

E. RAHBAR, M. PAKPARVAR, M. MASOUDI, and LADAN JOUKAR, “AN UPWARD TREND IN RUNOFF PRODUCTION OF THE KHAR-RUD WATERSHED,” IRANIAN JOURNAL OF RANGE AND DESERT RESEARCH, vol. 12, no. 4 (21), pp. 357–375, 2005, [Online]. Available: https://sid.ir/paper/106841/en

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