長江泛濫成因(求英文)

There are three aspects that cause of floods in Chang Jiang:
1.Weather and Climate:
-Snowmelt in spring <since temperature is increasing>
-Heavy rain in summer
-Wet summer monsoon
-Tropical cyclones in summer
(the main reason that lead these causes is the uneven distribution of
rainfall / discharge)
2.Relief:
-Changjiang Delta is a flat lowland.
-Many meanders in lower courses.
-Silting of lakes .
-Lower capacity of retention lakes.
3.Human activities:
-Deforestation results in increase in surface runoff.
-Poor farming practices, e.g. over-cultivation cause soil erosion.
-Reclamation of lakes and wetland for farmland results in reducing
the capacity of lakes.
-Misuse of land uses include farming in low-lying land.