Characteristics of watershed
a) SIZE: It helps in computing parameters like precipitation received, retained, drained off.
b) SHAPE: Different shapes based on morphological parameters like geology and structure, eg. pear, elongated etc.
c) PHISIOGRAPHY: Lands altitude and physical structures.
d) SLOPE: It controls the rainfall distribution and movement
e) CLIMATE:
f) DRAINAGE: It determines the flow characteristics and so the erosion behavior.
g) VEGETATION: Information of species gives a sure ground for selection of plants and crops.
h) GEOLOGY AND SOILS: Their nature determines size, shape, physiographic, drainage and groundwater conditions. Soils, derivative of rocks are the basics to greenery.
i) HYDROLOGY: Basic to final goal of growing greenery in a watershed. It helps in quantification of water available.
j) HYDROGEOLOGY: Availability of groundwater.
k) SOCIOECONOMICS: Statistics on people and their health, hygiene, wants and wishes are important in managing water.