Service Function Type	Evaluation Index Factor	Evaluation methods	Advantage	shortcoming
Supply function	Animal husbandry	Market Value Method	Assessment is impressive and credible	The results are one-sided, and the data must be sufficient and comprehensive.
Supply function	plant resources	Market Value Method	Assessment is impressive and credible
Adjustment function	Climate Regulation	Production Cost Method	Estimation from the production side is intuitive and accurate	Require adequate data to consider the causal effects of ecosystem services and products
	Soil C Accumulation	Carbon Tax, Opportunity Cost	Assessment is impressive and credible	Resources must be scarce
	Regulating the atmosphere	Forestry Cost, Carbon Tax, Industrial Oxygen Production	The loss of resource value is the investment cost of substitution projects	Large space-time differences
	Conserving water sources	Shadow Engineering, Water Balance	Represent difficult-to-estimate ecological values as alternative projects	Large space-time differences
	Erosion Control	Opportunity Cost Method	Assessment is impressive and credible	Resources must be scarce
	Soil consolidation and fertility preservation	Shadow Engineering, Market Value	Assessment is objective and reliable	Many of the functions of ecosystems cannot be replaced by technology.
	Nutrient Cycle	Alternative Price Method	Comparing and Analyzing the Ecological Environment Value from the Side	Strong Subjectivity
	Waste Degradation	Alternative Price Method		Strong Subjectivity
Support Functions	Bio-diversity	Conditional Value Method, Opportunity Cost Method	Value assessment for commodities exchanged in the absence of actual and alternative markets.	Intense subjectivity, significant deviation and regional differences Cultural Functions
Cultural Functions	Travel	Expense Act, Travel Expense Act	Rough quantification of ecological environment value	Only calculating the total amount of money spent on expenses does not really reflect the actual recreational value.