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首页> 外文会议>2010 International Conference on Multimedia Technology >Effect of Land Use Changes on Soil Conditions in the West Songnen Plain: A Case Study in Tongyu County, Jilin Province
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Effect of Land Use Changes on Soil Conditions in the West Songnen Plain: A Case Study in Tongyu County, Jilin Province

机译：松嫩平原西部土地利用变化对土壤条件的影响-以吉林省通榆县为例

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摘要

Soil sample data collected from 2006 and 1982 were linked with land use attributes derived from satellite images and analyzed by using traditional statistics, geostatistics and GIS. Traditional statistics showed that the mean value of each soil nutrient was very low. The mean value of TN, TP in 2006 were significantly lower than those in 1982 and other soil nutrients didn't have statistically significant difference between 1982 and 2006. Based on Markov transformation matrix, the predominant conversions between land uses were identified. By point to point comparison, we found the main land use conversion resulted in the decrease of soil fertilities in Tongyu County in 20 years. The results of ANONA indicated that cropland, woodland and grassland didn't have significant difference on SOM, TN, and AN, AP. The concentration of TP in woodland was significantly lower than other land use types. The spatial distributions of soil nutrients under different land use types have similar characteristics that the low level of soil nutrients had large area distributed under each land use types. Land use type was not the main controlling factor of soil nutrients variety in this study area, and the probably factors may be parent material, topography, fertilizer, etc.
机译：将2006年和1982年收集的土壤样本数据与卫星图像得出的土地利用属性联系起来，并使用传统统计，地统计和GIS进行分析。传统统计表明，每种土壤养分的平均值都很低。 2006年TN，TP的平均值明显低于1982年，而1982年至2006年之间的其他土壤养分差异均无统计学意义。基于马尔可夫变换矩阵，确定了土地利用之间的主要转换。通过逐点比较，我们发现通榆县20年的主要土地利用转化导致土壤肥力下降。 ANONA的结果表明，农田，林地和草地在SOM，TN和AN，AP上没有显着差异。林地中TP的浓度显着低于其他土地利用类型。不同土地利用类型下土壤养分的空间分布具有相似的特征，即在每种土地利用类型下，低水平的土壤养分都有较大的分布面积。土地利用类型不是本研究区土壤养分变化的主要控制因素，可能的影响因素可能是母体，地形，肥料等。

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