By analyzing the process of soil salt accumulation in irrigation area, and discussing the change of irrigation and drainage methods for drought transformed into water, the control scheme of soil secondary salinization...By analyzing the process of soil salt accumulation in irrigation area, and discussing the change of irrigation and drainage methods for drought transformed into water, the control scheme of soil secondary salinization in Wujiazi Irrigation Area was analyzed concretely, and the experience was summarized. After in-depth discussion, the importance of irrigation and drainage methods in the prevention and control of soil secondary salinization in irrigation areas was analyzed.展开更多
o satisfy the water demand for Tarim Basin's economic development in the year 2000, about 33 4×10 8 m 3 water needs to be further tapped. According to the analysis of the current status of water utilizati...o satisfy the water demand for Tarim Basin's economic development in the year 2000, about 33 4×10 8 m 3 water needs to be further tapped. According to the analysis of the current status of water utilization, it is pointed out that, to achieve such economic objectives, the policy of emphasizing both water exploitation and water conservation with the preference given to conservation measures must be followed. For this end, the potentials of exploring new additional sources and strengthening water conservation have been well analyzed, along with the calculation and tech economic assessment of some related parameters like the canal transmission efficiency in water delivery systems and the water irrigation efficiency in the field. The results indicate the potentials of water resource expansion and conservation are 34×10 8 m 3 and 57×10 8 m 3, respectively. Based on such research outputs, a water conservation program has been developed for the Tarim Basin, to provide important references and policy recommendations for the decision makers in Xinjiang agricultural department to implement water utilization measures.展开更多
文摘By analyzing the process of soil salt accumulation in irrigation area, and discussing the change of irrigation and drainage methods for drought transformed into water, the control scheme of soil secondary salinization in Wujiazi Irrigation Area was analyzed concretely, and the experience was summarized. After in-depth discussion, the importance of irrigation and drainage methods in the prevention and control of soil secondary salinization in irrigation areas was analyzed.
文摘o satisfy the water demand for Tarim Basin's economic development in the year 2000, about 33 4×10 8 m 3 water needs to be further tapped. According to the analysis of the current status of water utilization, it is pointed out that, to achieve such economic objectives, the policy of emphasizing both water exploitation and water conservation with the preference given to conservation measures must be followed. For this end, the potentials of exploring new additional sources and strengthening water conservation have been well analyzed, along with the calculation and tech economic assessment of some related parameters like the canal transmission efficiency in water delivery systems and the water irrigation efficiency in the field. The results indicate the potentials of water resource expansion and conservation are 34×10 8 m 3 and 57×10 8 m 3, respectively. Based on such research outputs, a water conservation program has been developed for the Tarim Basin, to provide important references and policy recommendations for the decision makers in Xinjiang agricultural department to implement water utilization measures.
