| 词汇 | groundwater |
| 释义 | groundwater noun[ U ] us/ˈɡrɑʊndˌwɔt̬·ər, -ˌwɑt̬·ər/ water that collects below the surface of the earth Examples of groundwatergroundwater For each model, the composition of the groundwater and the host rock with which it interacts must be defined. This could reflect a period of greater aridity, but may also indicate some saltwater contamination of regional groundwater. This assumption is common practice in unsaturated groundwater flow. This indicates that the impact of groundwater depletion on income becomes prominent as the severity of resource extraction increases. A watershed development program aiming at recharging aquifers, facilitating sustainable groundwater use, is the focus of this study. Even though the watershed development program facilitated physical access to the groundwater resource, economic access in terms of gross irrigated area is skewed. Given the ecological conditions, individual investments in groundwater exploitation may prove to be costly and unsustainable. Starting in the late nineteenth century, farmers began using groundwater from this extensive aquifer to supplement the highly variable surface supplies. The net return per acre-inch of groundwater was higher for small and marginal farms compared with large farms. However, these numbers are quite different from the other means of accessing water from groundwater sources. These environmental resources include not only end-user products like recreational opportunities but also indirect ecosystem services such as soil quality or groundwater replenishment. The initial steps in this process involved acidification of the groundwater and air stripping. These are the services that a conservation project focused on the forest's contribution to groundwater must evaluate. An important example is the extraction (appropriation) of resource units from a renewable resource stock such as fish, rangelands, groundwater aquifers, or forests. Only one of the socalled 'cement-like' bands is laterally extensive, and other 'cement-like' bands are localized due to groundwater cementation. See all examples of groundwater These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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