尹升,赵军,谷思玉,葛翠萍,张磊,张文成,贲洪东.黑土区典型县域农田土壤氮素动态分析[J].干旱地区农业研究,2009,27(1):42~46
黑土区典型县域农田土壤氮素动态分析
Dynamic analysis of soil nitrogen factors of typical farmland in blacksoil region
  
DOI：10.7606/j.issn.1000-7601.2009.01.09
中文关键词:  土壤养分  全氮  碱解氮  空间格局
英文关键词:soil nutrients  soil total nitrogen  soil alkali-hydroly sable nitrogen  spatial distribution
基金项目:地方攻关项目(2007AA6CN104)；国家科技基础条件平台建设项目(2006DKA32300-04)
作者单位
尹升 Resources and Environment Institute, Northeast Agricultural University, Harbin, Heilongjiang 150030， China 
赵军 Heilongjiang Key Laboratory of Blacksoil Ecology， Northeast Institute of Geography and Agricultural Ecology, Chinese Academy of Sciences, Harbin， Heilongjiang 150081， China 
谷思玉 Resources and Environment Institute, Northeast Agricultural University, Harbin, Heilongjiang 150030， China 
葛翠萍 Heilongjiang Key Laboratory of Blacksoil Ecology， Northeast Institute of Geography and Agricultural Ecology, Chinese Academy of Sciences, Harbin， Heilongjiang 150081， China
Graduate University of Chinese Academy of Sciences，Beijing 100049， China 
张磊 Heilongjiang Key Laboratory of Blacksoil Ecology， Northeast Institute of Geography and Agricultural Ecology, Chinese Academy of Sciences, Harbin， Heilongjiang 150081， China
Northeast Forestry University，Harbin, Heilongjiang 150040， China 
张文成 Shuangcheng Center of Agricultural Technology Transfer，Shuangcheng， Heilongjiang 150100， China 
贲洪东 Shuangcheng Center of Agricultural Technology Transfer，Shuangcheng， Heilongjiang 150100， China 
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中文摘要:
      选择典型黑土区双城市旱作玉米农田为研究区域,以耕层(0~20 cm)500个采样数据为基础,分析了土壤全氮和碱解氮的空间变化和现状;利用20世纪80年代和2005年2个时段1∶50000的土壤全氮和碱解氮空间分布图分析了22年来氮素的变化情况。结果表明,从空间分布来看,土壤全氮和碱解氮分别属于高度空间相关,结构性因子的影响占主导地位。22年来土壤全氮和碱解氮都呈上升趋势,2005年土壤全氮平均值为1.86 g/kg,比80年代的1.5 g/kg增加了0.36 g/kg,增幅为24%;土壤碱解氮平均值为137.8 mg/kg,比80年代增加了16.8 mg/kg,增幅为13.9%。
英文摘要:
      Soil total nitrogen (TN) content and soil alkali hydrolysable nitrogen content(AN) of farmland in Shuangcheng w ere studied. 500 soil samples w ere taken from the field with the soil layer of 0~20 cm，and got the map of soil nitrogen variance in 2005. The maps of soil TN and AN (1:50000) in the 1980s w ere digi-tized and overlaid with the correspondent maps of 2005 using ArcMap. The results of geostat ist ics analysis showed that both of them w ere a relative significantly spat ial heterogeneity，mainly affected by factors of struc-tures. In the past 22 years' succession survey for soil quantities from 1980s， TN and AN show increase. The average valueof TN in 2005 was 1.86 g/kg，increasing by 0.36 g/ kg, with the amplitude 24%; while the av-erage value of AN in 2005 was 137.8 mg/ kg, increasing by 16.8 mg/ kg with the amplitude 13. 9%. This anal-ysis is very useful to help farmers use fertilizer properly，improve soil quality and preserve ecological environ-ment.
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