Assessing the regional ecological security: methodology and a case study for the western Jilin Province, China

2008 ◽  
Author(s):  
Xiaoyan Li ◽  
Linfu Xue ◽  
Xikui Wang
Keyword(s):  
Jilin Province ◽  
Ecological Security ◽  
Western Jilin Province ◽  
Regional Ecological Security ◽  
Western Jilin

A case study on the relationship between soil geochemical components and salinization in the western Jilin Province of China

2004 ◽  
Author(s):  
Yingbo Zhu ◽  
Quansheng Ge ◽  
Jiyuan Liu ◽  
Yunxuan Zhou ◽  
Zhiqiang Gao ◽  
...  
Keyword(s):  
Jilin Province ◽  
Western Jilin Province ◽  
The Relationship ◽  
Western Jilin

scholarly journals The dynamic programming management model of groundwater with covariates: a case study for the Songyuan area, Jilin Province, China

2017 ◽  
Vol 17 (5) ◽  
pp. 1260-1267
Author(s):  
Fu-rong Yu ◽  
Bai-zhong Yan ◽  
Ji-hong Qu ◽  
Zhi-ping Li ◽  
Zhi-peng Gao ◽  
...  
Keyword(s):  
Dynamic Programming ◽  
Theoretical Foundation ◽  
Jilin Province ◽  
Management Model ◽  
Area Of Interest ◽  
Western Jilin Province ◽  
Groundwater Management Model ◽  
The Relationship ◽  
Western Jilin

This research analysed the action and characteristics of the relationship between mutual-feed joint-variations of groundwater. On this basis, a theory and method for constructing a dynamic programming management model for groundwater with covariates was proposed which used the state transition equation method. The model was solved using the differential dynamic programming (DDP) method. Thereafter, the groundwater system of the Songyuan area in western Jilin Province was treated as an area of interest to study the major problem of the relationships governing mutual-feed joint-variation. Based on the numerical simulation model, the research paid more attention to Qianguo County and Fuyu County and established a dynamic programming management model of the groundwater with covariates for these areas. Then the optimised amount of pumping, the groundwater level, and the covariates were solved simultaneously. To sum up, this research enriched the theory and method for dealing with mutual-feed joint-variations in the groundwater management model. Thereby, it established a theoretical foundation and provided technical support for the solution of various practical problems.

Sign in / Sign up

Export Citation Format

Share Document