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| 1 | Estimation of spatial and temporal changes in net primary production based on Carnegie Ames Stanford Approach(CASA) model in semi-arid rangelands of Semirom County, Iran显示文摘Net primary production(NPP) is an indicator of rangeland ecosystem function. This research assessed the potential of the Carnegie Ames Stanford Approach(CASA) model for estimating NPP and its spatial and temporal changes in semi-arid rangelands of Semirom County, Iran. Using CASA model, we estimated the NPP values based on monthly climate data and the normalized difference vegetation index(NDVI) obtained from the MODIS sensor. Regression analysis was then applied to compare the estimated production data with observed production data. The spatial and temporal changes in NPP and light utilization efficiency(LUE) were investigated in different rangeland vegetation types. The standardized precipitation index(SPI) was also calculated at different time scales and the correlation of SPI with NPP changes was determined. The results indicated that the estimated NPP values varied from 0.00 to 74.48 g C/(m^2·a). The observed and estimated NPP values had different correlations, depending on rangeland conditions and vegetation types. The highest and lowest correlations were respectively observed in Astragalus spp.-Agropyron spp. rangeland(R^2=0.75) with good condition and Gundelia spp.-Cousinia spp. rangeland(R^2=0.36) with poor and very poor conditions. The maximum and minimum LUE values were found in Astragalus spp.-Agropyron spp. rangeland(0.117 g C/MJ) with good condition and annual grassesannual forbs rangeland(0.010 g C/MJ), respectively. According to the correlations between SPI and NPP changes, the effects of drought periods on NPP depended on vegetation types and rangeland conditions. Annual plants had the highest drought sensitivity while shrubs exhibited the lowest drought sensitivity. The positive effects of wet periods on NPP were less evident in degraded areas where the destructive effects of drought were more prominent. Therefore, determining vegetation types and rangeland conditions is essential in NPP estimation. The findings of this study confirmed the potential of the CASA for estimating rangeland production. Therefore, the model output maps can be used to evaluate, monitor and optimize rangeland management in semi-arid rangelands of Iran where MODIS NPP products are not available. | Fatemeh HADIAN Reza JAFARI Hossein BASHARI Mostafa TARTESH Kenneth DCLARKE | 2019 | Journal of Arid Land2019，11，4： | 7 |
| 2 | Preparation of products rich in slowly digestible starch ( SDS ) from rice starch by a dual- retrogradation treatment 显示文摘 | Tian Y Zhan J Bashari M | 2013 | Food Hydrocolloids2013，31，： | 1 |
| 3 | Khuff formation Permian-Triassic carbonate in the Qatar-South Fars arch hydrocarbon province of the Persian Gulf显示文摘 | ALIREZA BASHARI | 2005 | Middle East Review2005，23，： | 1 |
| 4 | Genetic programming approach for estimating the deformation modulus of rock mass using sensitivity analysis by neural network显示文摘 | Beiki M Bashari Majdi A | | 0，，： | 1 |
| 5 | Influence of low ultrasound intensity on the degradation of dextran catalyzed by dextranase显示文摘 | BASHARI M EIBAID A WANG J | 2013 | Ultrasonics Sonochemistry2013，20，1： | 1 |
| 6 | The ups and downs of peer review 显示文摘 | BENOS D J BASHARI E CHAVES J M etal | 2007 | Adv Physiol Educ2007，31，： | 1 |
| 7 | Contributions of endo- thelium-derived relaxing factors to control of hindlimh blood flow in the mouse in vivo显示文摘 | Fitzgerald S M Bashari H Cox J A | 2007 | Am J Physiol Heart Circ Physiol2007，293，2： | 1 |
| 8 | Noninvasive biomarkers of liver fibrosis in haemophilia patients with hepatitis C: can you avoid liver biopsy显示文摘 | Maor Y Bashari D Kenet G | 2006 | Haemophilia2006，12，4： | 1 |
| 9 | Fibrotest or Fibroscan for eval-uation of liver fibrosis in haemophilia patients infected with hepa-titis C显示文摘 | Maor Y Halfon P Bashari D | 2010 | Haemophilia2010，16，1： | 1 |
| 10 | Investigation of rangeland indicator species using parametric and non-parametric methods in hilly landscapes of central Iran显示文摘This study aimed to identify indicator species and explore the most important environmental and management variables contributing to vegetation distribution in a hilly upper dam landscape in Zagros Mountain chain, Iran. A stratified random sampling method was used to collect topographic, edaphic, management and vegetation data. The density and cover percentage of perennial species were measured quantitatively. Indicator species were identified using the two-way indicator species analysis. Besides calculating physiognomic factors in sample sites, 24 soil samples were collected from 0 to 30 cm of soil depth and analyzed in terms of gravel percentage, texture, saturation moisture, organic matter, pH and electrical conductivity in saturation extract, lime percentage, soluble calcium and magnesium, available phosphorus, Cation Exchange Capacity(CEC) and soluble sodium and potassium. Multivariate techniques including Canonical Correspondence Analysis and Multi-Dimensional Scaling were used to explore the relationships of species with environmental and management variables. Seven plants were identified as indicator species due to being significantly correlated with management(grazing or non-grazing) and edaphic variables such as CEC, soil texture, pH, CaCO3 percentage and physiographic variable including slope, elevation, and convex and concave formations(p < 0.05). Overall, overgrazing and its subsequent effects on soil characteristics, loss of vegetation cover and trampling were found as the major causes of deterioration. Sustainable and integrated management practices such as the implementation of appropriate grazing systems were suggested to enhance soil quality and reduce the accelerated erosion in upper dam zones. | Asiyeh SHEIKHZADEH Hossein BASHARI Mostafa TARKESH ESFAHANI SayedHamid MATINKHAH Mohsen SOLEIMANI | 2019 | Journal of Mountain Science2019，16，6： | 1 |
| 11 | Fibrotest or Fibroscan for evaluati- on of liver fibrosis in haemophilia patients infected with hepatitis C显示文摘 | Maor Y Halfon P Bashari D | 2010 | Haemophilia2010，16，1： | 1 |
| 12 | Contributions of endothelium-derived relaxing factors to control of hindlimb blood flow in the mouse in vivo显示文摘 | Fitzgerald SM Bashari H Cox JA Parkington HC Evans RG | | 0，，： | 1 |
| 13 | Effect of ultrasound and high hydrostatic pressure (US/HHP) on the degradation of dextran catalyzed by dextranase显示文摘 | Mohanad Bashari Mandour H. Abdelhai Shabbar Abbas Ahmed Eibaid Xueming Xu Zhengyu Jin | 2013 | Ultrasonics - Sonochemistry2013，，： | 1 |
| 14 | Fibrotest or Fibrosean for evaluation of liver fibrosis in Haemophilia patients in- fected with hepatitis C 显示文摘 | Maor Y Halfon P Bashari D | 2010 | Haemophilia2010，16，1： | 1 |
| 15 | Effect of frozen storage on physico–chemistry of wheat glute proteins:Studies on gluten–,glutenin–and gliadin–rich fractions显示文摘 | Wang P Chen H Y Mohanad Bashari | 2014 | Food Hydrocolloids2014，38，18： | 1 |
| 16 | Genetic programming approach for estimating the deformation modulus of rock mass using sensitivity analysis by neural network 显示文摘 | Beiki M Bashari A Majdi A | 2010 | International Journal of Rock Mechanics and Mining Sciences2010，47，7： | 1 |
| 17 | Combined effects of glucose oxidase, papain and xylanase on browning inhibition and characteristics of fresh whole wheat dough显示文摘 | Tianyi Yang Yuxiang Bai Fengfeng Wu Na Yang Yanjie Zhang Mohanad Bashari Zhengyu Jin Xueming Xu | 2014 | Journal of Cereal Science2014，，： | 1 |
| 18 | Identification and releasing characteristics of high-amylose corn starch-cinnamaldehyde inclusion complex prepared using ultrasound treatment显示文摘 | Yaoqi Tian Yanqiao Zhu Mohanad Bashari | 2013 | Carbohydrate Polymers2013，91，2： | 1 |
| 19 | JNK activation is regulated by E2F and promotes E2F1-induced apoptosis显示文摘 | Dana Bashari Dalia Hacohen Doron Ginsberg | 2010 | Cellular Signalling2010，，1： | 1 |
| 20 | Noninvasive biomarkers of liver fibrosis in haemophilia patients with hepatitisC:can you avoid liver biopsy显示文摘 | Maor Y Bashari D Kenet G | 2006 | Haemophilia2006，12，4： | 1 |
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