| The report of the 20th National Congress of the Communist Party of China requires firmly establishing the concept of"Clear waters and green mountains are as good as mountains of gold and silver"and planning development from the height of harmonious coexistence between man and nature.This fully reflects the Party Central Committee with Comrade Xi Jinping at its core.Highlighting the important role of natural resources in the construction of ecological civilization.In the"Guiding Opinions on Coordinating and Promoting the Reform of the Property Rights System of Natural Resource Assets"issued by the Central Committee and the State Council,the exploration of the value and quantity accounting of natural resource assets is placed in a prominent position,which not only provides a basis for the management and protection of natural resources,but also It plays an important role in promoting the preservation and appreciation of natural resources.Grassland resources are important and valuable components of natural resources,and it is imperative to calculate their asset value.In this paper,taking the Inner Mongolia Autonomous Region as the research area,firstly,combined with the dynamic degree of land use and the relative change rate,analyzing the stock change of grassland resources in Inner Mongolia in 2005,2010,2015 and 2020,and uses the land use transfer matrix to analyze the transformation of grassland resources;secondly,based on the background resources of Inner Mongolia,the classification system of grassland resource assets was established by clarifying the relationship between natural resource assets,ecosystem assets,and services;then using methods such as market price approach,replacement cost method,and shadow project approach,the value of grassland resource assets in Inner Mongolia for four years was calculated according to the classification system of grassland resource assets;finally,use the natural breakpoint method and spatial autocorrelation method to study the temporal and spatial distribution and variation characteristics of the annual grassland resource asset value in Inner Mongolia,and combine the value of grassland resource assets in the study area.Reasonable countermeasures for regional differences.The main conclusions are as follows:(1)From 2005 to 2020,the grassland area in various leagues and cities in Inner Mongolia showed significant differences in changes,but overall exhibited an increasing trend,with the most obvious transformation being between grassland and unused land.The grassland area in Inner Mongolia’s various leagues and cities changed to varying degrees over 15 years,with the largest changes observed in Alxa League and Bayannur City,with an increase of 918,400 hm~2 and 460,800 hm~2,respectively,and the growth rates and relative changes were also the most significant,with growth rates of up to 53.75%and 15.58%,respectively.The grassland area in other leagues and cities showed a decreasing trend.The transformation between grassland and unused land was the highest,with the grassland converted into unused land covering an area of 892,500 hm~2,and the unused land converted into grassland covering an area of 2,018,200 hm~2.(2)Constructing a classification system for grassland resource assets in Inner Mongolia.The grassland resource assets in Inner Mongolia are classified into physical product assets,natural regulatory assets,and biological regulatory assets.Physical product assets mainly account for the value of forage resources and animal products.Natural regulatory assets mainly account for the value of soil conservation,water conservation,and gas regulation.Biological regulatory assets mainly account for the value of nutrient cycling,biodiversity,and waste treatment.(3)Between 2005 and 2020,the total value of grassland resources in Inner Mongolia showed a large increase and an upward trend,with the value of natural regulation assets consistently making up the majority of the total value.Based on the classification of grassland resource assets,various values were measured.Overall,the total value of grassland resource assets in Inner Mongolia was 532.388 billion yuan,664.764billion yuan,821.534 billion yuan,and 961,481 billion yuan in 2005,2010,2015 and 2020,respectively,with the unit value being 10,248.93 yuan/hm~2,12,543.21 yuan/hm~2,15,521.07 yuan/hm~2,and 18,178.74 yuan/hm~2,respectively.During the 15-year period,the total value and unit value increased by 80.6%and 77.4%,respectively.With regard to asset categories,the values of physical product assets,natural regulation assets,and biological regulation assets all showed an increasing trend between2005 and 2020,and the value of natural regulation assets was the highest,followed by physical product assets and biological regulation assets.In terms of value composition,there were differences in the main value composition of grassland resource assets among different cities in Inner Mongolia,but the degree of change was not significant.(4)Between 2005 and 2020,the spatial distribution of grassland resource asset value in Inner Mongolia showed strong temporal consistency,with a gradually decreasing trend from the east to the west.The spatial distribution pattern of total grassland resource asset value was generally consistent in 2005,2010,2015 and 2020,with a decreasing trend from the eastern to the western region.The spatial distribution pattern of physical product asset value,natural regulation asset value,and biological regulation asset value was generally consistent with that of the total asset value,and with significant changes in their value ranges over time.Grassland resource asset value showed a"polarization"phenomenon,with"high-high"clusters mainly located in the eastern parts of Hulunbuir,Xing’an,and Xilingol leagues,and some scattered in the southern part of the autonomous region."Low-low"clusters were mainly distributed in the northwestern part of Inner Mongolia,and the clustering area changed slightly over time.(5)Proposed rational strategies for regional differences in the value of Inner Mongolia’s grassland resources are as follows:Improve management measures to balance regional value differences;tap into local advantages and form regional value characteristics;strengthen market mechanisms to narrow regional value gaps;and enhance regional cooperation to promote complementarity in regional value. |
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