Research progress on identification of key influencing factors and typical evaluation models of cultivated land resource carrying capacity

• Main Authors: SUN Yan-jun, WANG Lu, LIU Zhen-hua, WEN Ning, HU Yue-ming, XIE Jian-wen, LEI Fan, XIAO Li, TANG Tie
• Format: Article
• Language: zho
• Published: Agro-Environmental Protection Institute, Ministry of Agriculture 2020-11-01
• Series: Journal of Agricultural Resources and Environment
• Subjects: carrying capacity; cultivated land resource; land resource; key influencing factors
• Online Access: http://www.aed.org.cn/nyzyyhjxb/html/2020/6/20200604.htm
• ISSN: 2095-6819; 2095-6819

Currently, food security, rural revitalization, and ecological civilization construction are important issues in agricultural and rural areas. The carrying capacity of cultivated land resources is a fundamental problem. This study summarized the concept, origin, and development of the carrying capacity, and systematically summarized four representative evaluation models(AEZ method, ecological footprint method, model index method, and comprehensive evaluation method). Four methods of influencing factors index system and key influencing factors identification were summarized, and their advantages and disadvantages were compared. The results showed the index system of influencing factors mostly appeared in the large-and medium-scale research on cultivated land resource carrying capacity, and it was easy to build; however, in small-scale research, such as village units, no representative research results had been formed. The identification of key influencing factors was mainly based on subjective methods, such as expert consultation method and lack of theorem method selection. The trend of the cultivated land resources carrying capacity evaluation model was the selection of comprehensive research methods. Therefore, using a comprehensive evaluation model should be prioritized in future research method selection.