PROGRESS IN GEOGRAPHY ›› 2003, Vol. 22 ›› Issue (1): 30-37.doi: 10.11820/dlkxjz.2003.01.004

• Original Articles • Previous Articles     Next Articles

An Analysis on the Effect of Regional Land Use Change on Grain Production ——A Case Study in Shandong Province

SHAO Xiao-mei   

  1. Institute of Geographic Sciences and Natural Resources Research,CAS,Beijing 100101 China
  • Received:2002-11-01 Revised:2002-12-01 Online:2003-01-25 Published:2003-01-25

Abstract: Land use change and its effects are important contents of global change study.Taking Shandong Province as a case,land use structure and temporal variation of total grain yield are analyzed in this paper.Based on the results of analysis,the effects of land use on grain production are further discussed.As a result,it is found that:the changes of land use type directly influence grain crop sown area and the sown structure variation of different grain crop;the degree of land use directly influences multiple crop index,which causes the variation of total grain yield;the intensive degree of land use causes the variation of grain yield per unit area.Lastly,the measures of realizing the sustainable development of land and grain production are put forward.For example,we must control the increase of population strictly and protect arable land in order to level off grain crop sown area, and increase the intensive degree of land use and soil productivity for enhancing grain yield per unit areaAccording to the status and characters of land use,Shandong Province could be classified as five groups,and every group has different direction in land use.These measures will provide an important basis for making policies on the sustainable development of land use and grain production of Shandong Province.

Key words: Effect, Grain production, Land use change, Shandong Province

CLC Number: 

  • F301.24