On the basis of the monitoring data from 1996 to 2003,the change trend and the distribution characteristics of nitrogen and phosphorus concentrations in Xiamen sea areas were analysed,and the main pollutant sources were discussed.The results show that in the past eight years,the concentrations of ...
Sewage treatment plants at New Braunfels and Seguin, Texas, were major sources of phosphorus to the Guadelupe River. Total phosphate phosphorus was determined to be the most critical phosphate parameter in assessing eutrophication. Seasonally, it ranged from a winter high to a summer low. ...
At present, cloud activity mainly occurs in the southern (summer) hemisphere, arising near the pole and at mid-latitudes from cumulus updrafts triggered by surface heating and/or local methane sources, and at the north (winter) pole, resulting from the subsidence and condensation of ethane-rich...
3.7. Differences in mineral element content of four different colored rice varieties Mineral elements present in the human body primarily originate from food sources. Differences in the content of mineral elements among rice grains of different varieties could be observed. HN exhibited the highest Fe ...
sources in smallholder agriculture catchments of the highlands of Kenya. The aim of this study was to investigate the sediment sources with sediment fingerprinting to generate the knowledge base to improve land management and to reduce sediment yields. Four main sediment sources (agricultural land, ...
Recently, the chemistry of main-group carbonyl complexes has garnered increased attention. Carbon monoxide (CO), a ubiquitous atmospheric trace gas produced by natural and anthropogenic sources, is a versatile feedstock for chemical or material production and is widely utilized in both academia and in...
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Plant Nutrient and Economic Value of Animal Manures Animal manures have economic value as plant nutrient sources and as amendments for soils whose physical properties can be improved by adding organic matter... SR Wilkinson - 《Journal of Animal Science》 被引量: 75发表: 1979年 APPLICATION OF NE...