The phrase "a general decreasing trend" is correct and usable in written English.
It can be used when discussing patterns or changes over time, particularly in data analysis or research contexts.
Example: "The data indicates a general decreasing trend in the population of the species over the last decade."
Alternatives: "a consistent decline" or "a general downward movement."
Flux of DIN peaked in the early 1980s and has since fluctuated and shown a general decreasing trend since the early 1990s.
The results show that the crop water footprint of Suzhou city has seen a general decreasing trend between 2001 and 2010.
A general decreasing trend in magnitude and frequency of floods was detected in the three periods, with more notable evidence in 1959 2009.
Similar to changes in percent live coral cover, a general decreasing trend in the abundance of juvenile and adult coral colonies was observed between 2003 and 2010 (∼ ten-fold decrease for adults), quickly followed by a six-fold increase between 2010 and 2014 (Fig. 3a,b).
Whereas, rainfall amount resulted in a general decreasing trend based on the average recorded values of the different stations from the LTSB.
As it is indicated in Fig. 6, there has been a general decreasing trend in the average amount of annual rainfall.
We observed a general decrease trend in PM10 concentrations through the analysed time period while the SSR simultaneously presented an increase.
A comparison between the two samples indicates that narrower and less connected cleating system results in more frequent coal fines generation and migration, resulting in significant permeability fluctuations with general decreasing trend.
Our results confirmed this general decreasing trend and showed that the distribution of marine diversity in the Mediterranean is highly heterogeneous.
The GLF data show the general decreasing trend in smoking prevalence in recent years in all regions.
The current trend is a general decrease in the structural complexity and extent, or the complete disappearance of these hygrophile and edaphic freshwater forests.
