NET PRIMARY PRODUCTIVITY IN KOUHDASHT, ITS SPATIO-TEMPORAL PATTERNS AND RELATION TO METEOROLOGICAL VARIABLES

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BORJI HASSAN GAVYAR MOSLEM; ESKANDARI DAMENEH HADI; KHOSRAVI HASSAN

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Journal: Journal of Range and Watershed Managment Year:2016 | Volume:69 | Issue:3 Page(s): 561-574

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Title

NET PRIMARY PRODUCTIVITY IN KOUHDASHT, ITS SPATIO-TEMPORAL PATTERNS AND RELATION TO METEOROLOGICAL VARIABLES

Author(s)

BORJI HASSAN GAVYAR MOSLEM | ESKANDARI DAMENEH HADI | KHOSRAVI HASSAN | Issue Writer Certificate

Keywords

NET PRIMARY PRODUCTIONQ1

RAINFALLQ1

TEMPERATUREQ2

KUHDASHT CITYQ2

Abstract

Nowadays, TEMPERATURE increase, RAINFALL decrease and its effect on the time dynamics of carbon fixation cycle still are faced by many uncertainties. NET PRIMARY PRODUCTION (NPP) is one of the main factors of carbon cycle; precipitation and TEMPERATURE measurement are known as two useful tools to study different ecosystems stability and resilience in terms of climate. Hence, in this study, NPP distribution affected by climate parameters of TEMPERATURE and precipitation have been investigated in four ecosystems of forests, grassland, irrigated agriculture and rain fed agriculture during the period of 2003-2010. Considering climate conditions of biomes, NPP estimation at regional scale was done based on the NASA Moderate Resolution Imaging Spectroradiometer (MODIS) MOD17 NPP product. The results showed that the regression relation was weak between NPP and RAINFALL for four studied ecosystems, in the other words, low coefficient between these two variables has caused no justified relationship between them. The regression relation between TEMPERATURE and NPP in forests, pastures and rain-fed agriculture ecosystems follows quadraticequations with determined coefficient over 0.55. The results of this study show that the forest ecosystem resilience to water and TEMPERATURE tensions is more than other ecosystems, and irrigated agriculture has the least resilience.

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APA: Copy

BORJI HASSAN GAVYAR, MOSLEM, ESKANDARI DAMENEH, HADI, & KHOSRAVI, HASSAN. (2016). NET PRIMARY PRODUCTIVITY IN KOUHDASHT, ITS SPATIO-TEMPORAL PATTERNS AND RELATION TO METEOROLOGICAL VARIABLES. JOURNAL OF RANGE AND WATERSHED MANAGEMENT (IRANIAN JOURNAL OF NATURAL RESOURCES), 69(3), 561-574. SID. https://sid.ir/paper/162315/en

Vancouver: Copy

BORJI HASSAN GAVYAR MOSLEM, ESKANDARI DAMENEH HADI, KHOSRAVI HASSAN. NET PRIMARY PRODUCTIVITY IN KOUHDASHT, ITS SPATIO-TEMPORAL PATTERNS AND RELATION TO METEOROLOGICAL VARIABLES. JOURNAL OF RANGE AND WATERSHED MANAGEMENT (IRANIAN JOURNAL OF NATURAL RESOURCES)[Internet]. 2016;69(3):561-574. Available from: https://sid.ir/paper/162315/en

IEEE: Copy

MOSLEM BORJI HASSAN GAVYAR, HADI ESKANDARI DAMENEH, and HASSAN KHOSRAVI, “NET PRIMARY PRODUCTIVITY IN KOUHDASHT, ITS SPATIO-TEMPORAL PATTERNS AND RELATION TO METEOROLOGICAL VARIABLES,” JOURNAL OF RANGE AND WATERSHED MANAGEMENT (IRANIAN JOURNAL OF NATURAL RESOURCES), vol. 69, no. 3, pp. 561–574, 2016, [Online]. Available: https://sid.ir/paper/162315/en

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