Evaluation And Division On Value Of Cultivated Land Resources In Fujian Based On GIS

The view of the using and management for cultivated land resources has changed a lot from qualities and quantities to value management with the increasing studying on attribute,qualities,quantites .sustainable using and protection .Recently ,the main object of property for cultivated land was made up of value and market price , in the process of management and allocation for cultivated land resources, a great quantity of cultivated land has transformed to the non- farming use due to not reflect the cultivated land value completely , composition of cultivated land resources and cultivated land resources'economic benefit was far lower than non-farming use , these factors resulted in a sharp decrease for cultivated land amounts, so we should have an objective and scientific assessment on cultivated land resources' value in order to achieve scientific management and reasonable utilization of cultivated land resources . So this study was used of GIS and mathematical model, the unit of evaluation is 250m×250m grid , based on the farming system division in Fujian , crops distribution in Fujian , the suitability for crops on cultivated land and cultivated land potential productivity , firstly , the anthor respectively used the income revivification method ,surrogate market method , contingent valuation method , evaluating the economic output value of cultivated land resources , the social capacity value of cultivated land resources , ecological service value of cultivated land resources ; Secondly , approaching composition of cultivated land resources in Fujian and the value obviously different in various regions ; thirdly, divising value of Cultivated Land Resources ; last , approaching for consummating countermeasures of compensation of cultivated land confiscation was useful to scientific management and reasonable utilization of cultivated land resources . The summary was following:In Fujian ,the area of suitable cultivated land of sweet potato, potato ,spring sowing soybean, summer sowing soybean , peanut ,flue-cured tobacco and sugarcane was respectively 1,302,600 hectare , 1,275,800 hectare, 1,245,200 hectare ,1,283,000 hectare , 1,298,300 hectare, 1,278,400 hectare and 1,133,8 hectare , which respectively accounted for 95.00%,93.04%> 90.81%,93.57%, 94.68%, 93.24% and 82.69% of the total area of cultivated land resources suitability in Fujian .So , sweet potato , potato , spring sowing soybean , summer sowing soybean , peanut, flue-cured tobacco and sugarcane counld grow on many of cultivated land resources in Fujian.In Fujian , the average of potential productivity of early rice ,medium rice , late cropping rice ,sweet potato , potato , spring sowing soybean, summer sowing soybean , peanut , flue-cured tobacco and sugarcane was respectively 15113.529kilogram per hectare, 10072.556 kilogram per hectare,7958.340 kilogram per hectare, 18363.824 kilogram per hectare, 14121.678 kilogram per hectare,3723.690 kilogram per hectare, 4154.630 kilogram per hectare,3290.777 kilogram per hectare, 4909.41 kilogram per hectare and 127290.398 kilogram per hectare , the area of high , medium , low potential productivity of early rice was respectively accounts for 23.90%, 62.97% and 13.13% of the total area of cultivated land, the area of high , medium , low potential productivity of medium rice was respectively accounts for 24.85%, 60.86% and 14.29% of the total area of cultivated land, the area of high, medium , low potential productivity of late cropping rice was respectively accounts for 7.04%, 57.32% and 35.64% of the total area of cultivated land , the area of high ,medium , low potential productivity of sweet potato was respectively accounts for 12.23%, 44.44% and 43.33% of the total area of cultivated land, the area of high , medium ,low potential productivity of potato was respectively accounts for...