Open AccessImpact of Water-Saving Renovation Projects on the Environment
Author(s) -
Jing He
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1549/2/022022
Subject(s) - per capita , water resources , urbanization , population , natural resource , natural resource economics , china , sustainable development , water supply , distribution (mathematics) , agricultural economics , water use , farm water , resource (disambiguation) , business , water resource management , environmental science , water conservation , geography , economic growth , environmental engineering , economics , ecology , mathematical analysis , demography , mathematics , archaeology , sociology , biology , computer network , computer science
Water is an important raw material for industrial and agricultural production, and it is also a precious natural resource for human survival. Without water, there is no life, there is no good natural environment, and social and economic sustainable development cannot be achieved. The world today has entered an era of water stress and a global water crisis has emerged. Compared with other countries in the world, China’s water resources and water environment are more worrying. First, China’s total water resources are seriously in short supply. China’s per capita water volume in 1998 was 2251 cubic meters, which was only one quarter of the world’s per capita level. It is predicted that when China’s population increases to 1.6 billion in 2030, the per capita water resources will drop to 1760 cubic meters. Second, the spatial and temporal distribution of water resources in China is also very uneven. The absolute amount of water resources is less in the west and more in the east, while the per capita share is less in the east and in the west, and is distributed in two reverse degrees. Third, China’s water environment is also deteriorating, resulting in a decrease in the availability of water resources. With economic development, population growth, and urbanization, China’s demand for water resources will increase further in the future. How to resolve the contradiction between insufficient water supply and increasing demand has become a major issue to be studied and resolved urgently.