The payment is called premium.
Premium payment refers to the specific amount of payment required periodically (monthly or yearly) by the insurer to provide coverage under a given insurance plans such as life insurance, auto insurance, and house insurance for a defined period of time. In Jan's case, he is required to pay monthly to cover the insurance for his car.
Human activities that contribute to desertification include the expansion and intensive use of agricultural lands, poor irrigation practices, deforestation, and overgrazing.