Yangtze River delta industrial economy is thriving on water with water use issues, long constrained by water resource and water environment. Under a guideline of water resource management concept of “determining and measuring water, strengthening the rigid constrains of water resources”, paying attention to water resources conservation and water enviroment protection and promoting regional green development are the key to breaking through the bottleneck of industrial development. This paper, focusing on the double constraints of water resource and water environment on industrial economic green development, studies the industrial green GDP and its development efficiency changes and regional variance in Yangtze River delta under the double constraints. Based on Yangtze River Delta three provinces and one city's 2006-2019 data, this paper uses adjusted resource loss value to amount the industrial green GDP, which is used as output indicator, and applies super-efficiency SBM model to evaluate its industrial green development efficiency. The results show that the overall industrial green GDP proportion in Yangtze River delta has been rising over years, while a falling economic loss of consumption reduction and degradation, and an improving water resource wasting and pollution. Green development efficiency has been generally rising over years, with a diminishing variance with unconstrained development efficiency. Geographically, economic developing efficiency is at a higher level in Shanghai and Jiangsu, lower in Zhejiang and Anhui, indicating that industrial economy in Yangtze River delta has a less dependence on its water resource and environment, leaving a great room to improve. In order to decrease resource consumption and environmental costs and further to reduce the dependence of industrial economy on water resource and environment, and to improve industrial green developing efficiency, this paper presents suggestions on expediting resource utilization and environmentally technical innovation, reducing water consumption and wasting from source, decreasing industrial pollution to constrain a falling water quality, optimizing water resource pricing mechanism, balancing supply-demand, utilization efficiency, recycling rate, conducting differentiated pricings, and constructing a united water resource administration so as to diminish a regional variance. 

Ecological compensation performance evaluation is a key to determination of ecological compensation standard and to optimization of ecological compensation mechanism. This paper, aiming at evaluating ecological compensation performance of south-water-north-shift phase I water source, and based on the ecological compensation capital standard, provides references for improving ecological compensation mechanism. This paper uses APH-CRITIC weight-variable matter-element extension model by establishing evaluation index system of water resource ecological compensation, and studies dynamically its performance through ecological compensation standard of water source on which costs method, ecological servicing values, water source proportion coefficient, water supply coefficient, and policy importance coefficient. The typical variable value of performance evaluation level of south-water-north-shift phase I water source is 3.699 34, with standard range of ecological compensation capital [9 693.00, 14 559.75 (10 k RMB)], of which [2 011.50, 3 368.25] distributed to Yangzhou, [2 787.75, 3 327.75] to Shuqian, [3 732.75, 5 157.00] to Huaian and [1 161.00, 2 706.75] to Xuzhou. The performance level for water source is rated at good+, suggesting a good environmental protection in water source. The standard range of ecological compensation capital for water source is RMB97 to 146 million, of which Huaian receives the most, Xuzhou receives the least. Input of ecological compensation capital improves the evaluation indexes with a better performance. Ecological compensation in water source will boost eco-environmental protection, economic growth and livelihood, and further practices the concept of "green-water-green-mountain as gold-mountain-silver-mountain" to reach a harmonious development of human and nature.

Water information disclosure is an important factor for water-sensitive companies to send information to capital market and gain returns. Whether or how the companies disclose water information becomes a focus for government and stakeholders. This paper, based on Shanghai\|listed chemical companies data from 2016 to 2018, establishes a multiple regression model to study the impacts of enterprise features, internal management, financial status and external factors on water information disclosure. Results show that enterprise size, listed periods, capital intensity, gross capital returns, public supervision pressure are positively related to water information disclosure level, but board proportion and Tobin Q value are negatively related to it. Equity concentration, asset debt rate, equipment renewal rate and local economic level have no significant impact on it. This paper, aiming at increasing water information disclosure quality, presents suggestions on establishing water information disclosure system, optimizing internal management and financial status and intensifying external supervision.

Ecological compensation is a vital mechanism in balancing regional economy and eco\|environmental protection. How to determine compensation standard and how to distribute compensation fund is a hard point. This paper uses eco\|system servicing value, GIS and remote sensing to analyze the changes in land use types and eco-system servicing values of Yangzhou in 2010, 2015 and 2018, which is applied to determine the upper limit of ecological compensation of water receiving area. ECPS is adopted to distribute the compensation fund. Yangzhou's land use structure has changed a lot during 2010 to 2018, with eco-system servicing value dropping to RMB 46 799 million from 55 359 million, 90.38% from water use eco\|system. Water receiving areas shall pay 2 091 million compensation, but the upper payment limit is 1 359 million, indicating an adjusted value by secondary water servicing at 80.02%, core compensation. Compensation funds are to be distributed to Gaoyou (1 013 million), Baoying (508 million), Hanjiang (281 million), Jiangdu (179 million), Yizheng (93 million) and Guangling (17 million) in an decreasing order. This paper presents suggestions on improving water source ecological compensation mechanism from determining compensation targets, setting up supervision and forming multiple compensation.

Trans-stream ecological compensation is a vital means to improve ecological capital values, protect stream ecology and promote regional sustainable development. Governments will bear issues of reputation during making decision and conduction of ecological compensation projects which are of social environmental benefits and public interests. This paper sets the gaming scenarios of water source and water reception, and incorporates loss cost, ecological gain, transfer payment, and reputation as well to establish an ecological compensation evolution gaming model in discussing their gaming evolution process and factors between water source and water reception by means of stream managing administration and governmental reputation function. Matlab is used to analyze the influence of parameter changes on stakeholder's selection. Ten factors impacting the cooperation evolution include rewards and punishment, water source protection cost, water reception transferred compensation payment, pollution treatment benefits, reputation-converted benefits. This paper presents suggestions on intensifying stream administrative functions, raising public and enterprise's awareness of environmental protection, establishing reputation evaluation mechanism and setting up multiple ecological compensation paths.

To protect the fairness of trade pricing of water discharging rights and to promote effective execution of water discharging right trade, this paper establishes an asymmetric information barging model based on fairness-preferred trade pricing of water discharging rights, which adopts reverse induction to solve three-staged barging gambling balance. Matlab R2014a is used to analyze the impacts of parameters on premier pricing and gambling effect. The higher acceptable lowest compensation price by seller is or highest compensation price by buyer is, the higher premier price is. If the highest compensation price by seller equals to the lowest acceptable compensation price by buyer in increment, the increased asking premier price by the former is larger than the latter. Fairness preference and discounting factor have little direction impacts on premier pricing at different gambling stages. The lower the lowest compensation price accepted by seller is or the higher the highest compensation price paid by buyer is, meaning a larger barging range, the higher the gambling effect will be made by both sides. The larger the barging discounting factor by both is, the larger gambling effect will be acquired by both. As discounting factor rises, if fairness preference maintained at a certain level, the buyer's whole gambling effect level is lower that the seller even if buyer asks price first and both maintain an equal earning increment.

Social stability is a vital basis for China's economy, requiring social stability risk assessment of vital hydrological projects, which is part of major decision. This paper, based on 20 social stability risk factors of vital hydrological projects, establishes a risk evaluation index system, which is weighted by entropy. Extensible material element theory combined with social stability risk assessment is used to construct index classic domain and joint domain. A comprehensive correlation is calculated to form the method in assessing social stability risks of vital hydrological projects based on the case of W channel consolidation. This project has a highest low risk hierarchy correlation, which means it is acceptable in social stability risk if prevention is in place. This method has been proven by the actual facts for its execution and adaptability, offering a new idea for social stability risk assessment of vital hydrological projects and effectively alerting the risks. 

In China's current economic accounting system, an accounting system revised by UN in 1993, farmland only inflects the income from crops, excluding the loss from polluted farmland resources. This paper, aiming at the undervalued farmland resources and environmental issues in Jiangsu province, analyzes farmland depleted cost, environmental degrading cost and restoration benefits, uses earnings multiplying and pollution loss rate to establish accounting model which is employed to calculate the green GDP based on adjusted farmland resources. The result shows a rising GDP, meaning farmland resource protection better than farmland environmental consolidation. Environmental degrading cost in Jiangsu province sits on top in traditional GDP in a rising tendency, and farmland pollution gets worse. Farmland restoration earnings increment rate lags behind economic development, which needs to improve land consolidation comprehensive earnings. This paper offers references for improving farmland resource quality and protection.