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Lanzhou University (2018)

The Characteristics of Household Pasture Stocking Rate and Influencing Factors in Inner Mongolia Grassland

杨正荣;

Titre : The Characteristics of Household Pasture Stocking Rate and Influencing Factors in Inner Mongolia Grassland

Auteur : 杨正荣;

Grade : Master’s Theses 2018

Université : Lanzhou University

Résumé
In recent years,grassland ecosystem degradation has become the focus of attention in the whole society,and the mechanism of retarding its deterioration and maintain the sustainable development of these natural resources has become a heated topic among scholars.Many studies have shown that the use of high stocking rate is the most important cause of grassland degradation and ecological damage.In order to reduce stocking rate and foster the recuperation of grasslands,the Chinese government began the implementation of grassland ecological compensation mechanism from 2010,the first round of which has been completed by 2015 for 268 counties(qi)in pastoral and semi pastoral areas.In this study,more than 700 household surveyed data in 2010 and 2015 were analyzed to reveal the converging characteristics of the distribution and influencing factors of stocking rate in pastoral areas.Moreover,the effect of implementation of the grassland ecological compensation mechanism was explored to effectively solve the problem of overgrazing caused by herdsmen and provide an important basis for achieving a balance between grassland and livestock.Result showed that stocking rate implemented by herdsmen across the grassland types in 2009 and 2014 generally decreased with increasing grassland area,and the logarithmic curve y=alnX+b was simulated which produced convergence between adjacent counties(Qi)in the same grassland area.The comparison of the panel data of herdsmen showed that the distribution pattern of stocking rate still exhibit convergence phenomenon,before and after the implementation of the policy.This implies that implementation of the grassland ecological compensation policy did not prompt herdsmen to reduce stocking rate,but consequently increased slightly.Multiple regression analysis showed that the characteristics of the herding family and the risk associated with living expenses of the family are related to the stocking rate.Prior to implementation of the ecological compensation policy,the grassland area in meadow steppe was significantly negatively correlated with stocking rate(P<0.01),while family size(P<0.05)and living expenditure per capita(P<0.1)were significantly positively correlated with stocking rate.The stocking rate of the typical steppe,desert steppe and desert area were only affected by the area of grassland(P<0.01).For sandy steppe,stocking rate was negatively correlated with the grassland area,but education degree of the householder was positively correlated(P<0.01)with stocking rate.After the implementation of the subsidy policy,the factors affecting stocking rate on grasslands in meadow steppe were transferred,resulting in negative correlation of stocking rate with grassland area(P<0.05).Grassland area remains a major influencing factor of stocking rate in desert grassland.Household population size and per capita living expenses gradually became the major determinant of stocking rate in typical grassland and desert areas.The factors affecting stocking rate in sandy steppe increased,with increase in education expenditure as the dominant factor.In general,grassland area and risk associated with pastoral expenditures are the main drivers of production decision of the pastoral family.

Mots clés : Stocking rates; ecological compensation; convergence; life risk; herders’ decision;

Présentation (CNKI) -> http://oversea.cnki.net/kcms/detail...

Page publiée le 17 mai 2019