[1]RAN Qinghong,YUE Yunhua,QU Bo,et al.Regional Differentiation of the Effective Irrigation Development and Influence Factors of the Cultivated Land in Western China[J].Research of Soil and Water Conservation,2015,22(04):241-246,252.
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Regional Differentiation of the Effective Irrigation Development and Influence Factors of the Cultivated Land in Western China
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
22
Number of periods:
2015 04
Page number:
241-246,252
Column:
Public date:
2015-08-28
- Title:
- Regional Differentiation of the Effective Irrigation Development and Influence Factors of the Cultivated Land in Western China
- Keywords:
- cultivated land; effective irrigation; influence factors; spatial difference; western provinces of China
- CLC:
- F301.2;S274.3
- DOI:
- -
- Abstract:
- The effective irrigation area of cultivated land is the important factor affecting the comprehensive grain production capacity in the western China and the national food security. In order to understand well the effective irrigation management of the cultivated land in the western provinces of China, the curve estimation method was applied to investigate the effective irrigation area and irrigation level process, trend and regional differentiation in provinces of western from 1997 to 2010. The purpose of the curve estimation is to analy the development change of the effective irrigation area and the effective irrigation rate of the cultivated land. The results show that the effective irrigation area of cultivated land was low proportion in the western region of China and the effective irrigation rates of the western provinces were different. The characteristics of the effective irrigation area of cultivated land annual variation and growth trend were different. The regional differences of the effective irrigation level and utilization rate were very significant in different provinces. The contribution rate of all kinds of factors affecting the effective irrigation area was not the same. On the one hand, the effects of the abandoned wells and building occupancy of provincial cultivated land were more and more remarkable in the western provinces of China in the past years. On the other hand, the ecological restoration, aging engineering and other influence factors became more and more weakening in the provinces of western China.
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1900-01-01