نتایج جستجو برای: sequestration
تعداد نتایج: 14218 فیلتر نتایج به سال:
soil is known as a suitable reservoir for carbon sequestration. the objective of this study was to investigate the capability of haloxylon on sequestration of carbon in sand dunes of yahya abad, sabzevar, in northeastern iran. eighty soil samples were taken from two depths of 0-5 and 5-10 cm under and between haloxylon trees. eight soil profiles under and between haloxylon trees were described ...
Surgical resection in mmspected intralobar sequestration can result in fatal hemorrhagic complications. The roentgen criteria for establishing tbis diagnosis are: 1) chronic and recurrent pulmonary Wtrate; 2) most often located in b a s k segments of the lower lobes; 3) multiple cystic areas; 4) failure of contrast media to enter the cystic area during broncbography. We studied two cases of int...
the radiologic features of intralobar pulmonary sequestration (ilps) have been describe and include the identification of a feeding systemic artery with venous drainage through pulmonary veins. primary sequestration associated with typical hamartoma signs is really rare and has been described only once. we describe a patient with ilps whose radiographic findings were unusual for two reasons. fi...
Extrapulmonary sequestration (EPS) is a rare congenital anomaly usually diagnosed during the first six months of life. It is mostly found between the left lower lobe of the lung and the diaphragm. Mediastinal presentation is extremely rare. We describe two identical cases of extrapulmonary sequestration mimicking mediastinal cystic mass in two boys. These emphasize the need to keep this diagnos...
carbon sequestration potential of three species including agropyron elengatum, stipa barbata and artemisia aucheri was evaluated in parts of a semi-arid rangeland in this study. after determination and selecting key areas as study sites, sampling from vegetation and soil, based on randomized systematic method, was done and 90 plant and 45 soil samples were taken, respectively. shooting and root...
Desertification leads to decrease in the ecosystem C pool and attendant reduction in Soil Organic Carbon (SOC). Reclamation of sandy land in arid and semi-arid has a high potential to increase carbon sequestration and improving soil quality. Our objective as to examine the changes in the soil carbon sequestration and soil properties of two soil layers (0–20 and 20-50 cm) under two types of recl...
climate changes and global warming are considered as very important challenges of sustainable development. carbon sequestration is the easiest and cheapest way to reduce the greenhouse gases, especially carbon which constitutes the largest portion of them. in the present study, the potential of carbon sequestration in four plant species of atriplex canescens, haloxylon persicum, artemisia siebe...
Examining the economic value of carbon sequestration in forests is essential, given the risk of global climate change, which has posed a profound challenge to societies internationally. The present study investigates the amount of carbon sequestration and its economic value in the oak forests (Quercus brantii L.) of Pahnus forest habitat with an area of 990 ha, located in Chaharmahal va Bakhtia...
An attempt to estimate the real value of a set of environmental goods and services, particularly forests are needed that at present, various pressures from economic incentives and goals have been the basis for their destruction and deterioration. Therefore, this study tries to investigate the amount of degradation of vegetation and fixed organic carbon per hectare and its value with social cost...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید