بررسي چگونگي مصرف و بهره‌وري آب در محصولات زراعي شهرستان دره شهر

Investigation of water consumption and productivity in crops of Darrehshahr city

ﺑﺎ ﺗﻮﺟﻪ ﺑﻪ ﮐﻤﺒﻮد و ﺑﺤﺮان آب، ﺑﻬﺮه وري آب ﮐﺸﺎورزي ﻧﻘﺶ ﺑﻪﺳﺰا و ﭘﺮ اﻫﻤﯿﺘﯽ را دارا ﻣﯽ ﺑﺎﺷﺪ؛ ﺑﻪﻃﻮري ﮐﻪ ﻣﺤﺪودﯾﺖ اﯾﻦ ﻣﺎده ﺣﯿﺎﺗﯽ ﺑﺎﻋﺚ ﮔﺮدﯾﺪه در ﺧﺼﻮص ﭼﮕﻮﻧﮕﯽ ﻣﺼﺮف آن ﺑﺎ وﺳﻮاس ﻫﺮ ﭼﻪ ﺑﯿﺸﺘﺮي ﻋﻤﻞ ﺷﻮد. اﯾﻦ ﻣﻮﺿﻮع ﻧﻪ ﺗﻨﻬﺎ در ﮐﺸﻮر ﻣﺎ اﯾﺮان ، ﺑﻠﮑﻪ در ﮐﻞ ﺟﻬﺎن ﺑﻪ ﻋﻨﻮان ﯾﮑﯽ از دﻏﺪﻏﻪﻫﺎي ﺟﺎري ﺳﯿﺎﺳﺖﮔﺬاران ﺑﺨﺶ ﮐﺸﺎورزي اﺳﺖ؛ ﮐﻪ اﯾﻦ اﻣﺮ ﻣﻮﺟﺐ ﮔﺮدﯾﺪه ﺑﻪ ﺻﻮرت ﻣﻨﻄﻘﻪاي ﻧﯿﺰ در راﺳﺘﺎي ﺑﻬﺮه_ وري آب اﻗﺪاﻣﺎﺗﯽ ﺑﻪ ﻋﻤﻞ آﯾﺪ. اﯾﻦ ﺗﺤﻘﯿﻖ ﺑﻪ ﻣﻨﻈﻮر ﭼﮕﻮﻧﮕﯽ ﻣﺼﺮف و ﺑﻬﺮه وري آب در ﻣﻨﻄﻘﻪ دره ﺷﻬﺮ ﻃﯽ ﺳﺎل زراﻋﯽ 3 -90 91 و 89-90، 88 -89 91 اﻧﺠﺎم ﺷﺪ. ﻧﺘﺎﯾﺞ ﺗﺤﻘﯿﻖ ﻧﺸﺎن ﻣﯽدﻫﺪ ﮐﻪ CPDﮐﻠﯽ ﻣﺤﺼﻮﻻت زراﻋﯽ ﺷﻬﺮﺳﺘﺎن درهﺷﻬﺮ ﺑﺮاﺑﺮ 1/378ﮐﯿﻠﻮ ﮔﺮم ﺑﺮ ﻣﺘﺮ ﻣﮑﻌﺐ ﻣﯽﺑﺎﺷﺪ. ﮐﻪ در اﯾﻦ ﻣﯿﺎن ﻣﺤﺼﻮل ﺧﯿﺎر ﺑﺎ 2/371 CPDﮐﯿﻠﻮ ﮔﺮم ﺑﺮ ﻣﺘﺮ ﻣﮑﻌﺐ داراي ﺑﯿﺸﺘﺮﯾﻦ، و ﻣﺤﺼﻮل ﺑﺮﻧﺞ ﺑﺎ 0/489 CPDﮐﯿﻠﻮﮔﺮم ﺑﺮ ﻣﺘﺮ ﻣﮑﻌﺐ داراي ﮐﻤﺘﺮﯾﻦ ﻣﻘﺪار ﻣﯽﺑﺎﺷﺪ.

Due to water scarcity and crisis, agricultural water productivity has a very important role; So that the limitation of this vital substance has caused human to act as obsessively as possible about how to use it. This paper is not only in our country Iran, but in the whole world as one of the current concerns of agricultural policy makers; This has led to regional measures of water efficiency. This study was conducted to investigate how water consumption and productivity in Darrehshahr(IRAN) region during 3 cropping years 88-89, 90-89 and 90-91. The results show that the total CPD of crops in Darhshahr is 1.378 kg/m3. Among these, cucumber product with CPD 2.371 kg/m3 has the highest, and rice product with CPD 0.489 kg/m3 has the lowest value