Cognition of the landscape-ecological reality in the time-spatial contextuality, complexity and integrity belong to key theoretical-metascientific research fields of the landscape ecology, epistemology and meta-landscape ecology. Cognition of the landscape-ecological reality by landscape ecologist is the permanent dynamic process in the time and space. Contextuality, complexity and integrity are important interior metascientific characteristics and categories, which have a great effect on the mechanismus of the emergence, development, creation and function of cognition of landscapeecological reality and landscape-ecological synthesis.