Since 1999, the government of China has carried out an awfully ambitious conservation program for "win-win" objective of environment refinement and poverty reduction becoming self-sustainable. The program was famous Grain for Green Project, for which the government of China spent more than 4300 billion yuan and 27 million hm2 of slope cultivated land was converted to forest and more than 100 million farmers took part in the program from 1999 to 2008. So we adopted the revised model of land use pressure index to the assessment of Grain for Green Project on the county-level food security from 1999 to 2008 based on case study in Mizhi, Qingjian, Zizhou and Wupu counties. Supposed food subsidies to compensation loss of farmers conversed of cropland to forest land in the form of grain for framers conversed of forest land to cropland, the results indicates that the effects of Grain for Green Project on Mizhi and Zizhou counties, which have a population density of 150-180 people per km2 and implementation conversion of 1.44-1.58 ten thousand hm2 of cropland to forest land,are obvious; but that of Qingjian County with a population density of 110-120 people per km2 and implementation conversion of 0.4 ten thousand hm2 of cropland to forest land and Wupu County with a population density of 170-190 people per km2 and implementation conversion of 0.4 ten thousand hm2 of cropland to forest land, are little influenced. In a word, the effects on food safety for counties with different population density and different conversion scale are different in the Loess Plateau hilly region. The government will choose the results to establish long-term, stable and effective food compensation mechanism, in order to consolidate gains of Grain for Green Project in the future.
CHENG Liu-san, WU Pu-te, ZHAO Xi-ning
. The Effects of Grain for Green Project on the County-level Food Security in the Loess Plateau Hilly Region —A Case Study in Mizhi, Qingjian, Zizhou and Wupu Counties of Shaanxi Province[J]. JOURNAL OF NATURAL RESOURCES, 2010
, 25(10)
: 1689
-1697
.
DOI: 10.11849/zrzyxb.2010.10.007
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