关键词: 连作, 库容量, 源活性, 马铃薯, 库活性, 库源关系

Abstract: As the main body of terrestrial ecosystem, forest ecosystem plays an important role in global ecosystem. The valuation of forest ecosystem services integrates different aspects of several subjects, and has become one of the hotspots in present ecological economics and environmental economics study. How to evaluate forest ecosystem services value and to establish a globally unified and feasible evaluation standard and index system become the urgent issues in the present time. However, it is difficult to accurately evaluate the ecosystem services value because of the complexity of ecosystem and the limitations of value research. This paper described the concept of forest ecosystem services, reviewed the research progress of forest ecosystem services value evaluation at home and abroad, and listed some important research workers and events in the history of the evaluation. In addition, the evaluation methods and the concrete calculation methods for the forest ecosystem services value based on the market theory of the actual market approach, substitution market approach, and virtual market approach were introduced in detail. In order to effectively solve the problems in ecosystem services dynamic evaluation, this paper also analyzed the advantages and disadvantages of some abroad ecological models, including InVEST, MIMES, CITYgreen, SoIVES, and GUMBO. Finally, on the basis of summarizing the current evaluation methods, the directions for future forest ecosystem services value evaluation were put forward, i.e., modeling of evaluation, precision of evaluation, processes and formation mechanisms, and conversion rate of functions to services.

Key words: sink-source relationship, source activity., potato, sink activity, sink size, continuous cropping