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覆沙坡面产流产沙过程试验研究
  • ISSN号:1009-2242
  • 期刊名称:《水土保持学报》
  • 时间:0
  • 分类:S151.9[农业科学—土壤学;农业科学—农业基础科学]
  • 作者机构:Key Lab of Northwest Water Resources and Environment Ecology of Ministry of Education,Xi’an University of Technology, State Key Laboratory of Soil Erosion and Dry-land Farming on the Loess Plateau,Institute of Soil and Water Conservation,Chinese Academy of Sciences and Ministry of Water Resources
  • 相关基金:Supported by the Natural Science Foundations of China(41071182);the Natural Science Foundations of Shaanxi Province(2011JE008);the Colleges Key Laboratory Science Research Program of Shaanxi Province(12JS065)
中文摘要:

Based on 3 m×3 m grid in sloping cornfield with soil auger in Yingwugou Small Watershed of the Dan River Basin,a total of 39sampling points were collected,and soil water content and nutrient content were measured in different soil depths.Meanwhile,the soil properties of different depth have been analyzed by traditional statistical and geo-statistics approaches.The results showed:the mean value of total nitrogen and soil organic carbon reduced as soil depth increased in general.But soil water content increased as the soil depth increased.The change of total phosphorus with soil depth was not obvious.The total nitrogen,soil water content,soil organic carbon and total phosphorus presented a moderate intensity variation and strong spatial dependence.In the four sampling depths,semi-variance model can simulate spatial structure of total nitrogen,soil water content and total phosphorus in 0 to 10 cm and 10 to 20 cm well.But the spatial structure of soil organic carbon was not good,which could not be simulated with semi-variance model.The analysis with Kriging interpolation showed that,the total nitrogen,soil water content and total phosphorus presented layered distribution in 0 to 10 cm and 10 to 20 cm;when the spatial distribution changed to 10 to 20cm from 0 to 10 cm,the average total nitrogen content reduced to from 0.598 g/kg 0.310 g/kg,while the average soil water content and total phosphorus increased from 12.988%to 15.439%and from 0.229 g/kg to 0.366 g/kg,respectively.

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期刊信息
  • 《水土保持学报》
  • 北大核心期刊(2011版)
  • 主管单位:中国科学院
  • 主办单位:中国科学院水利部水土保持研究所 中国土壤学会
  • 主编:刘宝元
  • 地址:陕西杨陵区西农路26号
  • 邮编:712100
  • 邮箱:journal@ms.iswc.ac.cn
  • 电话:029-87012707
  • 国际标准刊号:ISSN:1009-2242
  • 国内统一刊号:ISSN:61-1362/TV
  • 邮发代号:52-150
  • 获奖情况:
  • 1999年陕西省十佳期刊和优秀科技期刊一等奖,2000年中科院优秀期刊三等奖,2000年入选为中文核心期刊,中国期刊方阵“双效”期刊
  • 国内外数据库收录:
  • 日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊(2004版),中国北大核心期刊(2008版),中国北大核心期刊(2011版),中国北大核心期刊(2014版)
  • 被引量:39646