Toilets and their impacts on water environment in Jiangsu Province, China – Sample survey in Xiaguan district of Nanjing city and Dapu town of Yixing city

2004 ◽  
pp. 1521-1526
Author(s):  
L Liu ◽  
X Qian ◽  
G Lu ◽  
L Gao ◽  
W Liu ◽  
...  
Keyword(s):  
Water Environment ◽  
Jiangsu Province ◽  
Sample Survey ◽  
Nanjing City

scholarly journals Water Environmental Capacity Calculation and Allocation of the Taihu Lake Basin in Jiangsu Province Based on Control Unit

2019 ◽  
Vol 16 (19) ◽  
pp. 3774 ◽  
Author(s):  
Huang ◽  
Zhang ◽  
Tong
Keyword(s):  
Taihu Lake ◽  
Water Environment ◽  
Control Unit ◽  
Jiangsu Province ◽  
Lake Basin ◽  
Environmental Capacity ◽  
Taihu Lake Basin ◽  
Control Units ◽  
Water Environmental Capacity ◽  
Capacity Calculation

The water quality target management of the control unit is a convenient and direct technology for water environment management and the development direction of water environment management in China, involving control unit division and water environment capacity calculation. Taking the Taihu Lake Basin in Jiangsu Province as an example, we propose herein the basic principle of the division of a regional control unit in a plain river network and the method of analyzing the rationality of the control unit division. On this basis, the Taihu Lake Basin in Jiangsu Province was divided into 70 control units. To calculate the water environmental capacity in the plain river network area, we established a water environmental capacity calculation framework based on multiple targets of lakes and rivers, and proposed the goal of water quality "double compliance" of the water environmental functional zone and the assessment section. For this study, we calculated the regional water environmental capacity using the mathematical model of the Taihu Lake Basin’s water environmental capacity, and the water environmental capacities of the 70 control units were allocated by the weight coefficient method, which established water area and functional division length. The research results described herein were applied to the pollution permit management of the Taihu Lake Basin in Jiangsu Province. It provides important technical support for the establishment of a pollution permit system based on the total capacity to improve environmental quality.

scholarly journals Quantification of eco-compensations based on a bidirectional compensation scheme in a water environment: a case study in the Jiangsu Province, China

Water Policy ◽  
2019 ◽  
Vol 21 (6) ◽  
pp. 1162-1174 ◽  
Author(s):  
Jianjian Wang ◽  
Jie Zhou ◽  
Qiaohua Zhao ◽  
Hong Jiang ◽  
Zixuan Wang
Keyword(s):  
Water Quality ◽  
Taihu Lake ◽  
Water Environment ◽  
Compensation System ◽  
Jiangsu Province ◽  
Lake Basin ◽  
Compensation Payment ◽  
Payment Schemes ◽  
Pilot Work ◽  
Pollutant Flux

Abstract This study delineates adjustments to the eco-compensation pilot work of the Taihu Lake Basin and the Huaihe River Basin. The number and location of original compensation sites were adjusted based on the characteristics of the river network and of the water pollution status. A bidirectional eco-compensation system based on water quality exceeding multiple was then implemented. Under this scheme, the eco-compensation payments of each city under three different compensation standards were calculated. A suitable unified short-term compensation standard for the whole province is determined among several compensation payment schemes. The results obtained after implementing the most relevant scheme reveal that (1) the bidirectional eco-compensation system is highly flexible and is viable economically, as the payment of fiscal expenditures used to pay eco-compensation is reasonable. (2) In the southern Jiangsu Province, the ratio of pollutant flux at each compensation site to the total regional flux is relatively high and may, therefore, accurately reflect the water quality condition of the main rivers flowing into the Taihu Lake. (3) The ratio of pollutant flux in the northern Jiangsu Province is low, which highlights the need for further improving the number and location of eco-compensation sites, as well as the compensation methods and standards.

The Niushou landslide in Nanjing City, Jiangsu Province of China: a slow-moving landslide triggered by rainfall

Landslides ◽  
2020 ◽  
Vol 17 (11) ◽  
pp. 2603-2617 ◽  
Author(s):  
Zinan Li ◽  
Faming Zhang ◽  
Wen Gu ◽  
Menglong Dong
Keyword(s):  
Jiangsu Province ◽  
Nanjing City ◽  
Slow Moving

scholarly journals Distribution and Virulence Gene Comparison of Aeromonas Strains Isolated from Diseased Fish and Water Environment

2013 ◽  
Vol 62 (3) ◽  
pp. 299-302 ◽  
Author(s):  
QUN LAN ZHOU ◽  
YI JUAN WANG ◽  
JUN XIE ◽  
XIAN PING GE ◽  
BING WEN XI ◽  
...  
Keyword(s):  
16S Rdna ◽  
Virulence Genes ◽  
Water Environment ◽  
Virulence Gene ◽  
Common Species ◽  
Jiangsu Province ◽  
Common Gene ◽  
Gene Comparison ◽  
Diseased Fish ◽  
The Difference

A total of 71 Aeromonas strains were isolated in the south of Jiangsu Province China in order to analyze the difference ofAeromonas spp. distribution between diseased fish and water environment. The sequence of 16S rDNA and gyrB demonstrated that the 71 Aeromonas isolates could be divided into 4 species, including A. veronii (55), A. hydrophila (11), A. salmonicida (3) and A. media (2). A. veronii was the most common species isolated from fish and water environment. All Aeromonas isolates were screened for three putative virulence genes, aer, hly and alt. hly was the most common gene among three virulence genes.

scholarly journals Spatio-temporal Evolution and Improvement Potential of Agricultural Eco-efficiency in Jiangsu Province

2021 ◽  
Author(s):  
Zaijun Li ◽  
Meijuan Hu ◽  
Tao Jin
Keyword(s):  
Spatial Pattern ◽  
Temporal Evolution ◽  
Spatial Association ◽  
Jiangsu Province ◽  
Chemical Fertilizer ◽  
Scale Efficiency ◽  
Hilly Region ◽  
Nanjing City ◽  
Spatio Temporal ◽  
High Level

Achieving eco-efficiency in agriculture production at low environmental costs is key to sustainable agriculture. Using the DEA-SBM model, this study evaluated the agricultural eco-efficiency of the 77 counties and districts in China’s Jiangsu province from 1999 to 2018 and analyzed its spatio-temporal evolution pattern and influencing factors. The mains conclusions were as follows: (1) The overall agricultural eco-efficiency and its decomposition terms, pure technology efficiency and scale efficiency, exhibited a fluctuating downward trend. The regional inequality in agricultural eco-efficiency had been widening and exhibited a strong positive spatial association. (2) The agricultural eco-efficiency in Jiangsu province presented a “high south and low north” spatial pattern. High-level agricultural eco-efficiency areas were in the Taihu Plain in Sunan, while low-level agricultural eco-efficiency zones are distributed across Subei City. The High-High-type spatial association pattern is concentrated in the Suzhou-Wuxi-Changzhou region, while the Low-Low areas are mainly in the coastal regions of Subei and Suzhong. (3) The spatial pattern of PTE and SE generally exhibited a “high south and low north” distribution. Areas with positive growth in agricultural eco-efficiency, PTE, and SE, were situated in Xuzhou, Nanjing city, and the bordering regions between Yangzhou and Huai’an, and Changzhou and Wuxi. (4) The excessive redundant use and application of pesticides, chemical fertilizer, agricultural diesel, labor, land, and agricultural carbon emission have been the primary factor affecting Jiangsu's agricultural eco-efficiency. Irrigation had also signficantly impacted agricultural eco-efficiency, while mechanical power and agricultural film had minimal effect. The majority of counties and districts in Subei, Suzhong, and Ningzhen Yang Hilly region have issues regarding their excessive usage of chemical fertilizer, pesticide, chemical fertilizer, agricultural diesel, labor, and land. The findings of this study can contribute towards a better understanding of agricultural eco-efficiency and spatial association effect and can help policymakers increase agricultural eco-efficiency.

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