滨州市耕地质量等别与标准粮产量相关性分析

Correlation Analysis on Farmland Quality and Standard Grain Yield in Binzhou City

摘要:

以滨州市2011年土地利用现状图和数据库为基础，提取耕地图斑（包括零星地物中的耕地部分），共计191044个图斑。利用偏相关分析方法分析了标准粮产量与自然质量分、自然等指数、利用等指数、经济等指数4个因素之间的相关性。结果表明标准粮产量与利用等指数的相关性更强，在自然条件相差不大的情况下，农业投入和经营水平对耕地产量的影响更为显著。

Abstract:

Based on status chart of land use in Binzhou city in 2011 and database，191044 map patches of arable land have been extracted totally（including arable land in sporadic portions）.By using partial correlation coefficient method, correlation between standard grain yield and natural mass fraction, physical quality index, land use index and economic index have been analyzed. It is showed that the correlation between standard grain yield and land use index is more strong. The impact of agricultural inputs and management level to farmland yield is more significant in the case of little differences in natural conditions.