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Firstly, the connotations and influencing factors of ecosystem health are discussed, and then the assessment principle, evaluation standard and evaluation method of ecosystem health and the establishment and measurement of ecosystem health indicators are studied. Through the study of its connotation and evaluation, feasible measures to effectively promote the development of ecosystem health are put forward finally. [ABSTRACT FROM AUTHOR]

Based on the introduction of concept of forest lifter, changes in the amount of forest lifter with climate zone, elevation, forest type and age of stand were analyzed, and then the decomposition of forest lifter was discussed. [ABSTRACT FROM AUTHOR]

With the continuous development of human society and economy and the continuous progress of industrial technology, more and more pollutants are discharged into the natural environment, and soil environment is also affected at the same time. Among pollutants leading to soil pollution, heavy metals have resulted in most serious soil pollution. Here, many control and restoration approaches to soil pollution from heavy metals are proposed, and characteristics and applicable conditions of various methods are compared, so as to provide theoretical references tor the control and restoration of soil pollution from heavy metals in future. [ABSTRACT FROM AUTHOR]