The InVEST model —Integrated Valuation of Ecosystem Services and Trade-offs (Integrated Valuation of Ecosystem Services and Trade-offs) was jointly developed by Stanford University, The Nature Conservancy (TNC) and the World Wide Fund for Nature (WWF). Simulate changes in the material and value of ecosystem service systems under different land cover scenarios to provide a scientific basis for decision makers to weigh the benefits and impacts of human activities. The InVEST model, a model system for ecosystem service function assessment, fills the gap in this field , realizing the spatialization of quantitative evaluation of ecosystem service function value. The biggest advantage of this model over the previous ecosystem service function assessment methods is the visual expression of the assessment results, which solves the problem that the previous ecosystem service function assessment was abstractly expressed in words and not intuitive enough.
Ecosystem services and their value assessment have become hotspots in ecology and ecological economics research (Daily, 1997; Costanza et al., 1997; De Groot et al., 2002). The evaluation research on the functional value of ecosystem services in foreign countries can be traced back to 1925 when Drumarx in Belgium first used the expenditure on wildlife recreation as the economic value of wildlife. In 1941, Dafdon in the United States used the expenditure method to calculate the economic value of forests and wild life for the first time. In 1947, Flotting in the United States proposed to calculate its consumer surplus based on travel expenses, and use the consumer surplus as the recreational value of the recreational area; in 1959, Clawson in the United States revised the travel cost assessment method; in 1964, JL Knetch revised and incorporated it again. The travel cost assessment method has been improved. In the same year, Davis of the United States proposed and used the quotation technique of the conditional value method for the first time when studying the recreational value of the forest in Minyin State. In 1972, the Japanese Forestry Agency estimated the value of ecological functions provided by forests throughout Japan. In 1973, Nordhau and Tobin proposed to use the "economic welfare criterion" to modify the gross national product, which aroused international attention on the estimation of environmental resources, and many scholars successively proposed various schemes to estimate the value of environmental resources (Liu Yulong et al., 2005 ). In 1991, the Environmental Committee of the International Union of Sciences held a meeting to discuss how to carry out quantitative research on biodiversity, which promoted the development of biodiversity research and its value assessment methods. In 1993, relevant agencies of the United Nations officially published the interim version of the "Handbook of Comprehensive Environmental and Economic Accounting" (SEEA for short), which comprehensively summarized the previous research results of comprehensive environmental and economic accounting in various countries, and provided a general idea of environmental and economic accounting. And the framework and some accounting methods of ecological value (Zhang Jianguo, Yang Jianzhou. Calculation and evaluation of comprehensive forest benefits in Fujian [J]. Ecological Economics, 1994, (5): 1-6. ). In 1997, Costanza et al. evaluated the value of the main types of ecosystem service functions in the world, which opened the prelude to the research on the value of ecosystem service functions. In 1997, the book "Ecosystem Service Functions" edited by Gretch Daily et al. systematically expounded the content and evaluation methods of ecosystem service functions, and also analyzed the value of ecosystem service functions in different regions such as forests, wetlands, and coasts. Nearly 20 examples of evaluation (Daily G C. Natures Science: Societal Dependence on Natural Ecosystems[M]. Washington DC: Island Press, 1997.) have high academic value.
Combining the InVEST model with the actual project to carry out the practical technology from shallow to deep, analyze the characteristics and needs of the InVEST model practice technology, integrate the system, connect the actual work project and thesis writing, and solve the focus of the participants and the actual project process. The course adopts the logic of gradual extension. Whether you are a novice or have been able to successfully run the InVEST model to generate results, if you are a novice teacher who will teach you, if you are already familiar with the InVEST model, we have prepared for you. The content of the project and the reproduction of high-quality papers through the model, and it is also very important to combine the experience and skills of the paper writing of the InVEST model and provide communication guidance for the participants' own paper writing,
Teacher Bai (Researcher): Has long been engaged in the research work on the relationship between ecosystem structure-pattern-process-function-service change and response; focusing on biodiversity, ecosystem services and values, etc., to build biogeochemical models and evaluation index systems , providing theories, methods and approaches for the sustainable development and ecological environment construction of cities, regions and nature reserves, and published many SCI papers.
1) Use the InVEST model to master ecosystem service assessment methods such as water production (including water conservation), carbon storage (including carbon sequestration), soil conservation, water quality (nitrogen and phosphorus), habitat quality, and heat island mitigation, and carry out human activity impacts, major Ecological effectiveness assessment of project implementation;
2) Explain the principles in simple terms, including parameter setting, data acquisition and processing, and in-depth analysis of model results;
3) Explain techniques and methods, share experience and experience, and provide all case data and codes;
4) Combined with the project case to explain the implementation method, docking with the actual work application;
5) Learn to operate on the computer, independently complete case operation exercises, and track and analyze problems throughout the process;
6) Combining with the writing of scientific research papers, explain in detail the writing skills and ideas of writing papers and the production of data charts;
7) The exclusive student aid group assists in consolidating learning and practical work application exchanges, and holds online Q&A from time to time;
