South Guizhou and Exploitation of groundwater reso

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South Guizhou and Exploitation of groundwater resources

Dam around the exit of the underground river of water, gravity irrigation of farmland 14hm. ⑤ block: that is blocking the cave bar is a favorable location in the underground river underground dam construction to improve the underground river water level, water openings. If your interest Dingxian underground river along the mountain wax plugging project. Into underground reservoirs, water storage, 30 million m, irrigated farmland 54hm. ⑥ mention: the put on the underground river, the use of pumps lift water from the underground river to the surface irrigation skylight farmland. Provide water or by pumping methods, access to groundwater irrigation of farmland and livestock drinking water or solution, which can be seen everywhere in the region, such as water Luodian Chengguan District, near the flowers at the tomb from the pumping of groundwater use, Chengguan District to ensure water. Alexander County store Huishui 3 DENG Ling-ling: Qiannan exploitation of groundwater resources and extraction of ground water irrigation to off farm 14hm. Guangshun Guangshun Changshun County District residues in Longtan Township, head only 4 ~ 5m, with a 25 horsepower motor, irrigation fields 20hm. ⑦ Power: some have a large amount of water,[link widoczny dla zalogowanych], spring water for high water head for power generation. Libo Xiaoqi Kong driest underground river flow 1.3m / s, water power 1200KW. Underground river has its side benefits, but also has its downside. In a number of peak and valley depressions and peaks, when summer and autumn rainfall, the water level soared, due to poor drainage underground river, a lot of flooding, and many depressions, valleys, Bazi flooded into affect the development of agricultural production. Therefore, to change the face of karst mountains, the light is not enough use of underground river, but also victims of underground rivers rule. Used mainly to clear the underground river, clean up sinkholes, digging drainage wells, dug drainage tunnel and other flood control measures. Underground river system based on the distribution, development and utilization of the exposed features and conditions that the following areas should be actively developed and utilized. ① Under Secretary of Dushan County, Ma tail region: the upper strata of limestone, dolomitic limestone, Shiyan Department exposed a large area, as well developed karst abundant groundwater, surface water shortage, serious threat to agricultural production, groundwater to underground river the form of its characteristics, as gravity irrigation and provide irrigation sources, usually in 1O ~ 15m head about a maximum of 30m. Ma tail region in the southern and eastern area, the Permian limestone formed Department of Mountain Peaks, depressions, underground rivers and development, shallow depth, development and utilization of favorable conditions. After such as yellow - Xiaoqi Kong underground river, on the middle reaches of irrigated farmland is expected to 200hm above. ② Walled spinulosa long Changshun County District: Department of the carbon in the limestone Shangshih dolomitic limestone peaks formed depressions, the main pool area groundwater as irrigation water, the characteristics of development and utilization of favorable conditions. Preliminary estimates of groundwater dynamic reserves 4.3m / s, the region solved 2700hm irrigation water, while only the area of farmland 2467hm, therefore, from the perspective of the area of water is reliable. Underground karst lake in the form of multi-exposed surface, the water level higher, as the irrigation source. ③ Well Luodian Mo Yang District size: the size of Mo Yang is flat Well underground river crossing area Khouang Khouang County side of town grams of grams of underground no one to cross the river from the general flow of 3m / s, underground rivers and supplies in good condition, the karst region well developed, the formation of groundwater enrichment zone, after full use of farmland to resolve 1400hm water level can reach the local irrigation 8O% or more. ④ Hui County are areas of water dragons out of tunnel underground river: the new limestone a large area exposed Permian, as karst, groundwater recharge conditions, so a depression in the anticline formed in a wing of groundwater enrichment zone, a large shaft, the water holes, springs exposed surface. Underground river flow 1.5m / s or more, provided for the development of a reliable power source. Exploitation, not only can solve the existing 1400hm agriculture water, but also the potential field of soil change. ⑤ Duyun, benefits of water, your set, Weng'an and other large areas, exposed to water than common, mining method, able to find and block the main channel to form underground reservoirs, where the mountainous border region with Pingba have a larger supply area flow stability of the spring exposed to be around spring water. Water wells, for example, benefits of water basins, dug wells less than 5m, which may be made rich groundwater. These regions by means of a, has, mention other forms of development and utilization of electricity, the utilization of karst groundwater from the current 10% to 60%. Therefore, active research and development use of groundwater, irrigation and solutions to achieve an important part of agricultural irrigation water.