Using the GIS and RS technology, the cultivated land database could be developed and evaluation units & data could be obtained quickly. Thus the efficiency of work could be improved.
利用GIS和RS技术可以建立耕地资源数据库，快速准确地获取评价数据和确定评价单元，提高评价工作效率；
Being integrated these methods and models with GIS and RS data, the productivity of cultivated land is evaluated rapidly and exactly.
通过这些模型方法与GIS和RS结合，快速准确地完成耕地地力评价，并将评价结果成图输出。
Based on statistical data of cultivated land and social and economic factors from 1949 to 2002 in Poyang Lake region, this paper discusses the driving forces by multi-variable statistical method.
依据鄱阳湖地区1949 ~ 2002年耕地面积和社会经济统计数据，运用主成分分析和多元线性回归模型等统计方法分析该地区耕地面积变化的驱动因素。
The data of cultivated land from Hunan Province Territory Resource Bureau since 2000. The same as in the following table.
从2000年起，耕地面积为国土资源厅统计数据（后同）。
The data of cultivated land from Hunan Province Territory Resource Bureau since 2000. The same as in the following table.
从2000年起，耕地面积为国土资源厅统计数据（后同）。
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