1. Research Base of Guangzhou Agricultural Heritage Systems, South China Agricultural University, Guangzhou 510642, China
2. Key Laboratory of the Lingnan Agricultural Civilization of Guangdong Regular Higher Education Institutions, South China Agricultural University, Guangzhou 510642, China
3. College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
4. College of Economics and Trade, Guangdong Polytechnic of Industry and Commerce, Guangzhou 510510, China
5. School of Architecture & Urban Planning, Shenzhen University, Shenzhen 518060, China