The Influence of Land Use Change on Soil Fertility in Intensive Agricultural Region: A Case Study of Quzhou County, Hebei
Received date: 2002-12-15
Revised date: 2003-02-20
Online published: 2003-05-25
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
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
KONG Xiangbin, ZHANG Fengrong, QI Wei, XU Yan . The Influence of Land Use Change on Soil Fertility in Intensive Agricultural Region: A Case Study of Quzhou County, Hebei[J]. Acta Geographica Sinica, 2003 , 58(3) : 333 -342 . DOI: 10.11821/xb200303002
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