Abstract
Ningxia Province is rich in energy but fragile in ecology. How to coordinate sustainable utilization of natural capital and the fragile ecological environment is a significant guarantee for social-economic development. This study uses the improved three-dimensional ecological footprint to characterize the utilization status of natural capital flows and stocks in Ningxia Province from 2004 to 2017. Additionally, the driving factors behind changes in the natural capital stock are revealed by the partial least squares method (PLS). The results are as follows: (1) From 2004 to 2017, ecological footprint increased rapidly in Ningxia Province at an annual rate of 4.52%, resulting in a increase of the ecological deficit from 1.64 to 3.85 gha/cap at an annual rate of 6.8%, among which, Yinchuan city and Shizuishan city had the largest ecological deficit, while Guyuan city basically maintained ecological surplus. The fossil energy land and cropland were the main components of ecological footprint. (2) The consumption of capital stock in Ningxia Province continued to grow at an annual rate of 3.12%, from a value of 2.28 times overusing the existing area in 2004, increasing to 3.41 times in 2017. While the EF size increased slightly with an annual rate of 1.95%. The capital stock consumption was concentrated in Yinchuan and Shizuishan, and the capital flow consumption was concentrated in Wuzhong, Guyuan, and Zhongwei. (3) The capital flows of forest land and built-up land basically meet consumption demand, while the capital stock occupation of grassland, water and fossil energy land was serious. By 2017, the capital flow of cropland could basically satisfy people’s consumption demand. (4) The urbanization rate, GDP, the secondary industry output value and per capita consumption expenditure of urban residents were the main influence factors on the natural capital stock consumption. These findings not only are of real significance in promoting the coordinated development between economy and natural capital utilization in Ningxia Province but also have policy implications in improving the utilization efficiency of natural capital in energy-rich ecologically fragile regions.
Highlights
Natural capital refers to the natural resources or environmental assets that provide the materials and services needed for the sustainable development of a region’s social economy [1,2], it is, the space carrier and material basis for realizing sustainable development
Eco-economics has developed a consensus that the minimum level of sustainable development is preventing the stock of natural capital from decreasing [7,8], and the development of low-carbon economy has become an inevitable choice for China and the whole world to achieve sustainable development
The capacity of natural capital supply was slowly increasing at an annual rate of only 0.9%, from 1.44 gha/cap in 2004 to 1.62 gha/cap in 2017, which led to the natural capital loss continue growing
Summary
Natural capital refers to the natural resources or environmental assets that provide the materials and services needed for the sustainable development of a region’s social economy [1,2], it is, the space carrier and material basis for realizing sustainable development. Eco-economics has developed a consensus that the minimum level of sustainable development is preventing the stock of natural capital from decreasing [7,8], and the development of low-carbon economy has become an inevitable choice for China and the whole world to achieve sustainable development. How to scientifically and accurately quantify natural capital endowment and maintain the minimum threshold of natural capital stock is an important basis and prerequisite for easing the contradiction between human social development and natural resources
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