نتایج جستجو برای: npp loss
تعداد نتایج: 448289 فیلتر نتایج به سال:
Previous investigations have identified that the effects of climate change on net primary production (NPP) of global forests have varied both spatially and temporally, and that warming has increased the NPP for many forests. However, other factors, such as available soil water for plant growth, could limit these incremental responses to warming. In our investigation we have quantified the respo...
Nuclear power plant simulation has traditionally focused on plantspecific Full Scope Simulators (FSS) with the primary objective being licensed operator training. The initial development and delivery of the vast majority of the FSSs have taken place either late in the plant construction cycle or following commercial operation. The development of an FSS has typically taken two to three years wit...
Operational monitoring of global terrestrial gross primary production (GPP) and net primary production (NPP) is now underway using imagery from the satellite-borne Moderate Resolution Imaging Spectroradiometer (MODIS) sensor. Evaluation of MODIS GPP and NPP products will require site-level studies across a range of biomes, with close attention to numerous scaling issues that must be addressed t...
Leymus chinensis (Trin.) is the dominant vegetation type in eastern Eurasian temperate grasslands but is decreasing due to the combined pressure of reduced precipitation and overgrazing. This study evaluated the separate and combined effects of precipitation and defoliation on net primary productivity (NPP) and composition of a L. chinensis steppe to promote the sustainable development of tempe...
s of papers 35 142 Citric acid improves phytate phosphorus utilization in two breeds of chicks fed a corn-soybean meal diet. K. A. Rafacz*, C. Martinez, J. L. Snow, D. H. Baker, and C. M. Parsons, University of Illinois. Previous research in our laboratory has shown that citric acid improves phytate phosphorus utilization in crossbred chicks (New Hampshire x Columbian) fed a P-deficient corn-so...
Terrestrial ecosystems greatly contribute to carbon (C) emission reduction targets through photosynthetic C uptake.Net primary production (NPP) represents the amount of atmospheric C fixed by plants and accumulated as biomass. The Three-North Shelterbelt Program (TNSP) zone accounts for more than 40% of China's landmass. This zone has been the scene of several large-scale ecological restoration...
After the Fukushima nuclear disaster in March 2011, an international review of nuclear safety indicated that two of the three nuclear power plants (NPPs) operating in Taiwan were listed as the most dangerous in the world. To understand the perception of NPP risks by the public in Taiwan and their attitudes regarding a planned fourth NPP after the Fukushima nuclear incident in 2011, a study was ...
The study was undertaken to evaluate bio-chemical properties, shelf-life determination and expansion of ripe fruits four velvet apple germplasm. selected germplasm were local red variety, yellow PSTU Bilati gab-1 gab-2. Ripe collected from Germplasm Center, Patuakhali Science Technology University (PSTU) different locations district Bangladesh. Results expressed that maximum TSS (13.93%), vitam...
Urbanization has an important effect on ecosystem services (ESs) and identifying the relationship between urbanization ESs can provide a decision-making reference for regional ecological protection management. Taking areas along Yellow River of Henan Province (AYRHP) as research area, coupling system is established in this study to reveal two. are estimated by using Carnegie–Ames–Stanford appro...
با تزریق پروتئین آنزیمی جدید افزاینده فشار خون (NPP :New Pressor Protein) که از پلاسمای فعالشده با تریپسین به دست میآید و هومولوگ با قطعه فاکتور XII انعقادی (FXIIa) میباشد، به طور داخل وریدی به موشهای صحرایی، به مقدار زیادی فشار خون و ضربان قلب را افزایش میدهد. به طور همزمان یک افزایش سریع در مقدار کاتکولامینهای پلاسما مشاهده میگردد که اساساً منشأ آن بخش مرکزی غده آدرنال است؛ زیرا مدول...
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