Changes in Water Resources Systems:
Methodologies to Maintain Water Security and Ensure Integrated Management
(Proceedings of Symposium HS3006 at IUGG2007, Perugia, July 2007). IAHS Publ. 315, 2007, 244-249.
Evolution
of property rights in the groundwater irrigation system and food-water security
in Haihe basin, China
Hao Li1 2, Jun Xia1& Jinxia Wang1
1 Key Laboratory of Water Cycle & Related Surface Process, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China
lih.05b@igsnrr.ac.cn
2 Graduate School, Chinese Academy of Sciences, Beijing 10039, China
Abstract The evolution of property rights
in groundwater irrigation systems (PRGIS) may affect not only crop structure,
but also the potential output of water. Such an impact is especially obvious in
Haihe basin where irrigation depends
mostly on groundwater. Based on the policy dialogue model (PODIUMSIM) and an
econometric model, the paper analyses this impact. The results show that,
although the change of crops structure increases the quantity of consumed
water, the peasants’ economic income is greatly improved. Also, the evolution
of PRGIS augments the available water through enhancing the efficiency of
tubewell. Therefore, the evolution of PRGIS can improve food–water security in the
Haihe basin.
Key
words food-water
security; groundwater irrigation system; PODIUMSIM; property rights evolution