نتایج جستجو برای: GPP
تعداد نتایج: 1505 فیلتر نتایج به سال:
Gross primary productivity is one of the most important factors in the carbon cycle of terrestrial ecosystems. With global warming increase, the frequent drought events and the specific response of regional vegetation to these changes, it is essential to identify and quantify the relationships between climatic and GPP data in arid region. In this study, the responses of gross primary productivi...
background: the principles of pharmaceutical care are embedded in the concept of good pharmacy practice (gpp). gpp is poorly applied in community pharmacies not only in asian countries, but even in united states and europe. the present study was undertaken to evaluate the knowledge, attitude and practice of the community pharmacists in iran, regarding gpp. methods: a total of 794 pharmacists we...
Energy and water availability were identified as the first order controls of evapotranspiration(ET) in ecohyrodrology. With a ~1,000 km precipitation gradient and distinct wet-dry climate,the North Australian Tropical Transect (NATT) was well suited for evaluating how energy andwater availabilities constrain water use by vegetation, but has not been done yet. In this study,we addressed this que...
Gross primary productivity (GPP) is a critical flux determining the quantity of carbon entering an ecosystem. Thus, studying GPP at larger spatial and longer time scales is necessary to identifying locations of potential sinks or sources of carbon. This study employs remote sensing techniques to estimate savanna GPP in the Northern Territory (NT), Australia using MODIS (Moderate Resolution Imag...
Aim To examine the global pattern of the net primary production (NPP)/gross primary production (GPP) ratio of the Earth’s land area along geographical and climatic gradients. Location The global planetary ecosystem. Methods The 4-year average annual NPP/GPP ratio of the Earth’s land area was calculated using 2000–03 Moderate Resolution Imaging Spectroradiometer (MODIS) data. The global pattern ...
The aims are to validate and assess the performances of MODIS gross primary production (MODIS-GPP) and evapotranspiration (MODIS-ET) products in China’s different land cover types and their sensitivity to remote sensing input data. In this study, MODIS-GPP and -ET are evaluated using flux derived/measured data from eight sites of ChinaFLUX. Results show that MODIS-GPP generally underestimates G...
Accurately quantifying gross primary production (GPP) is of vital importance to understanding the global carbon cycle. Light-use efficiency (LUE) models and process-based models have been widely used to estimate GPP at different spatial and temporal scales. However, large uncertainties remain in quantifying GPP, especially for croplands. Recently, remote measurements of solar-induced chlorophyl...
GPP: generalized pustular psoriasis IL-36RN: interleukin-36 receptor antagonist PV: psoriasis vulgaris INTRODUCTION Generalized pustular psoriasis (GPP) is a rare but serious inflammatory skin disease that may be caused by deficiency of interleukin-36 receptor antagonist in which there is presence of homozygous or compound heterozygous mutations of the IL-36RN gene. Most GPP cases are sporadic,...
Two spatially-explicit estimates of gross primary production (GPP) are available for the Northern Great Plains. An empirical piecewise regression (PWR) GPP model was developed from flux tower measurements to map carbon flux across the region. The Moderate Resolution Imaging Spectrometer (MODIS) GPP model is a process-based model that uses flux tower data to calibrate its parameters. Verificatio...
Green public procurement (GPP) practices have been recognized as an effective policy tool for sustainable production and consumption. However, GPP practices adoption, especially in developing countries, is still an issue. Seeking to help understand these adoption issues, we develop a conceptual model which hypothesizes moderation effects of GPP knowledge on the relationships between GPP drivers...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید