地理学报 ›› 2003, Vol. 58 ›› Issue (3): 333-342.doi: 10.11821/xb200303002

• 土地利用与土地覆盖 • 上一篇    下一篇

集约化农区土地利用变化对土壤养分的影响——以河北省曲周县为例

孔祥斌1, 张凤荣1, 齐伟2, 徐艳1   

  1. 1. 中国农业大学土地资源与管理系,北京 100094;
    2. 山东农业大学土地资源与管理系,山东 泰安 271018
  • 收稿日期:2002-12-15 修回日期:2003-02-20 出版日期:2003-05-25 发布日期:2010-09-09
  • 作者简介:孔祥斌 (1969-), 男, 河北省承德市人, 博士生。主要研究方向是土地资源可持续利用和土地资源评价。E-mail: kxbin1@263.net
  • 基金资助:

    国家重点基础研究发展规划项目 (G1999011810); 国家自然科学基金 (49871005); 国土资源部重点科技项目(2000209)

The Influence of Land Use Change on Soil Fertility in Intensive Agricultural Region: A Case Study of Quzhou County, Hebei

KONG Xiangbin1, ZHANG Fengrong1, QI Wei2, XU Yan1   

  1. 1. Dept. of Land Resources and Management, CAU, Beijing 100094, China;
    2. Dept. of Land Resources and Management, SDAU, Tai'an 271018, China
  • Received:2002-12-15 Revised:2003-02-20 Online:2003-05-25 Published:2010-09-09
  • Supported by:

    National Key Project for Basic Research, No.G1999011810; National Natural Science Foundation of China, No.49871005; Key Technical Research Fund of Land and Resource Ministry of China, No.2000209

摘要:

以河北省曲周县为集约化农区的分析样区,通过对1980年、1999年土地利用类型变化和2期不同用地类型的土壤养分变化进行分析。结果表明:曲周县1980~1999年之间的土地利用类型以水浇地、旱地、菜地、园地、林地等农业用地类型为主,1980年农业用地类型占土地总面积的77.47%,1999年的农业利用类型占土地总面积的77.43%;但是土地利用类型也存在着转化,转化的顺序为荒草地向旱地、水浇地、菜地方向转化,旱地向水浇地、菜地方向转化;1980年土壤养分含量在不同用地类型间的变化顺序为水浇地>旱地>荒草地,差异幅度在2%~18%之间,1999年土壤养分含量在不同用地类型间的变化顺序为菜地>水浇地>旱地,差异幅度在18%~690%之间;2期对比分析表明,土壤养分含量除速效钾外不仅在相同用地类型之间增加幅度大,而且在转化后地用地类型之间也存在明显差异;土壤有机质、全氮、速效磷含量在不同土地利用类型中的变化顺序为菜地>水浇地>旱地>荒草地,速效钾含量变化的顺序为旱地>荒草地>菜地>水浇地。

关键词: 土地利用变化, 土壤养分, 不同时期, 集约化农区, 河北省

Abstract:

Land use change is the results of interactions between physical factors and human activities, and it also leads to changes of soil nutrient. Taking Quzhou county of Hebei province as a case study, this paper analyzed the changes of land use types and the corresponding changes of soil fertilities from 1980 to 1999. The results are as follows: The convert order of land use type is from grassland to farmland, from farmland to irrigable land, from irrigable land to vegetable land; the change extent of organic matter, total-N, and available-P content is different among different land use types in 1980 and 1999, the order of content change in different land use types is irrigable land > farmland > grassland, but the range is from 2% to 18%; the order of content change in different land use types in 1999 is vegetable land > irrigable land > farmland, but the range is 18%-690%; and the change extent of organic matter, total-N and available-P content is different among different land use types from 1980 to 1999, the order of content change in different land use types is vegetable land > irrigable land > farmland > grassland.

Key words: land use, soil fertility, temporal change, intensive agriculture, Hebei