Abstract
Based on the data of China’s economic and social big data platform from 2000 to 2019, this paper studies and analyzes the development status and influencing factors of desertification in Maowusu sandy land in China. Based on the exploratory analysis (EFA) and the dummy variable regression model (DVRM), the research result shows that the annual precipitation is the main climate factor affecting the vegetation coverage in this area. And for every 100 mm increase in annual precipitation, vegetation coverage will increase by 10%. In addition, the annual average temperature also has a significant impact on the vegetation coverage. For every 1 °C increase in the annual average temperature, the vegetation coverage will increase by 2.5%. Analysis of policy factors shows that the policy effects of the 2005 National Desert Control Plan (2005-2010) and the 2011 National Desert Control Plan (2011-2020) etc. can increase vegetation coverage by 3.4% and 4.7%respectively compared with the base period level in 2000. The study reveals the important role of climate and policy factors in the reversion of desertification in Maowusu sandy land. The study is of great significance and value to desertification management and related policy-making in China.
Highlights
In order to build the forest shelter belt in northern Shaanxi, early research on desertification of Maowusu carried out field surveys of desert natural conditions and established some experimental stations
Based on the data from 2000-2015 in the Shaanxi Economic and Social Development Statistics Database, the Inner Mongolia Autonomous Region Economic and Social Development Statistics Database, and the Ningxia Hui Autonomous Region Economic and Social Development Statistics Database, the analysis and research on the reversal factors of desertification in Maowusu Sandy Land in China can be concluded as follows : (1) According to preliminary descriptive statistics, it can be found that from 2000 to 2015, the vegetation coverage of the Maowusu Sandy Land in China has maintained an upward trend, which means that the degree of desertification in the Maowusu Sandy Land has shown a reverse trend
(2) The logarithm of three variables that GDP in the Maowusu sandy Land, the total output value of agriculture, forestry, animal husbandry, and fishery, and the per capita disposable income of residents in rural pastoral areas can be reduced to an economic characteristic factor, but both analysis of variance and the regression analysis results show that this economic characteristic factor has no obvious effect on the desertification reversal of Maowusu sandy land
Summary
In order to build the forest shelter belt in northern Shaanxi, early research on desertification of Maowusu carried out field surveys of desert natural conditions and established some experimental stations. In the 21st century, the global climate has undergone major changes, some researchers believe that the precipitation and temperature are rising in sync, and the precipitation plays a decisive role in the reversion of Maowusu desertification [11-12]. In these researches, response variables often use vegetation coverage or forest coverage to represent different degrees of desertification, and to analyze the impact of sand desertification reversion. This paper tries to introduce some dummy variables and their interaction terms, through quantitative analysis, measures the impact of human factors and natural factors on the reversion of desertification in Maowusu sandy land, especially using the systematic method in System Engineering Theory and comparative analysis method in Public Policy Theory tries to measure the influence of the policy on desertification reversal factors to better support for desertification control decision-making and desert ecosystem management in China [15-16]
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
