关键词: 耕地, 保护等级, 受胁迫程度, 调控指标

Abstract: China is a country with vast population and scarce land per capita and the arable land decreases substantially.To study the land of any types or in any region has been brought forward at the new round of land use restructuring planning,and it offers an important tract to plan synthetically and solve the arable land problem.This paper takes Hebei Province as a case to illustrate it.Firstly,to estimate quantificationally the sustainable throughput of all counties(towns or townships) and rank those by the value of throughput,sequentially to determine which places should be concerned highly in the course of the local government protecting the arable land;the process includes indicator system's design,ascertainment of the weighing,standardization of the data and division of the key regions;then 42 counties have been taken as national farmland protection regions,which are mainly located in the central and northern part of southern Hebei province and the peripheries of Beijing and Tianjin municipalities,and another 52 counties as provincial farmland protection regions,which are mainly located in the central Hebei province,the southwestern part of southern Hebei province,and the littoral of Hebei Province.Secondly,to differentiate the degree to which the construction activities endanger the quantity of arable land so as to lay the foundation for adopting different measures in different regions;the process includes analysis of the factors to endanger the quantity of the arable land,ascertainment of the indicators to classify the regions,ascertainment of the standards to classify the regions and the classification of the being-endangered arable land regions;then there are 10,11,29,25 and 19 counties taken as high,high-medium,medium,medium-low and low endangered regions respectively,among them the first two types are mainly located in the peripheries of the big cities and the neighboring regions along the main roads in Hebei Plain.Thirdly,to set up a series of rigid,flexible and expected indicators,then use them to regulate the local arable land at different scales and to different degrees.Lastly,to set down several countermeasures to guarantee these indicators to be implemented efficiently,which mainly includes(1)establishing digital management systems aiming at indicators brought forward above;(2)plotting out the regions of land us control;(3)reforming the revenues;and(4)designing and perfecting the new property right systems.

Key words: farmland, protection rank, economic stress, regulation indicators