However, in the actual enterprise report disclosure, the information disclosure on water consumption, total groundwater withdrawal control and wastewater emission reduction is far lower than expected, and there are problems such as incomplete and inconsistent water information disclosure and weak water performance disclosure. Although the Administrative Measures for the Legal Disclosure of Enterprise Environmental Information reviewed by the Ministry of Ecology and Environment clarifies the accurate and complete disclosure of environmental information by enterprises. Green development with the goal of "water-saving priority" has become one of the important directions for the development of the paper and paper products industry.Īccording to the statistics compiled by the China Environmental Statistical Yearbook, the wastewater discharge of the paper industry accounted for 12.3% in 2020, second only to chemical raw materials and chemical products manufacturing, and is the second largest industry in China’s industrial wastewater discharge. Whether in practice or theoretical research, water environment issues have gradually been paid attention to by enterprises. The research field of water resources management mainly focuses on the influence of macro factors on enterprise water resources management from the perspective of economics 1, the strategy of corporate water resources from the perspective of management 2, the improvement of enterprise water resources accounting capacity from the perspective of water management accounting 3, and the development of comprehensive framework of enterprise water management accounting 4. With the intensification of global climate change and the increasing strain on industrial water use, the importance of corporate water information disclosure has made Chinese enterprises have begun to pay attention to their own water resource management, and gradually integrate water resource management into high-level supervision (Carbon Disclosure Project China, 2020). As a disclosure carrier of corporate water resources management, water information disclosure describes the relevant information of corporate water use and drainage through monetary performance or volume, and discloses non-financial reports on corporate water management, strategy and other business risks and opportunities to stakeholders (The CEO Water Mandate, 2014), which occupies an important part of environmental information disclosure. Plt.As an important traditional manufacturing industry, the paper industry is closely related to social development and ecological environment, and is also an important part of water consumption. With states `x in \mathbb$$Īn exercise in linearizing a highly nonlinear model is given as an exercise for State Space Modeling. Below is the continuous time form of a model in state space form. Putting a model into state space form is the basis for many methods in process dynamics and control analysis. Linear Time Invariant (LTI) state space models are a linear representation of a dynamic system in either discrete or continuous time.
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