GIS-based Classification of Land in Rubber Plantations

OU Bin1,2) LUO Wei1,3) MA Li4) ZHONG Yinkuan1,2) (1 Rubber Research Institute, CATAS, Danzhou, Hainan 571737; 2 College of Agronomy, Hainan university, Danzhou, Hainan 571737; 3 Ministry of Agriculture Key Laboratory for Rubber Tree Biology, and State Engineering and Technology Research Center for Important Tropical Crops, Danzhou,Hainan 571737; 4 Hainan Center for Land Environment & Resources Information, Haikou, Hainan 570228)

land grading of rubber plantations ; GIS ; Longjiang state farm

According to the grading method for cultivated land and the growth characteristics of rubber trees in Hainan Province, land in rubber plantations was graded based on GIS, taking Longjiang State Farm in Baisha, Hainan Province as an example. The Delphi method was used to select 14 parameters for grading, and the Analytical Hierarchy Process (AHP) in combination with the entropy method was applied to identify weighting of the parameters in the area under study. Grading units were created by dividing the plot of land. The data of the grading parameters were calculated to set up a multi-level grading system for the rubber plantation land, composed of nature, land utilization and economy. At last, 5% of land grading units were collated in the field, and 97% of the units were found to contain the data agreeable to the field. This indicates that the land grading results of the rubber plantations calculated by this method accord with the fact.