| 不同气候条件下华北粮食主产区地下水保障能力时空特征与机制 |
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| 引用本文：王电龙,张光辉.2017.不同气候条件下华北粮食主产区地下水保障能力时空特征与机制[J].地球学报,38(s1):47-50. |
| DOI：10.3975/cagsb.2017.s1.13 |
| 摘要点击次数: 1808 |
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| 基金项目:中国地质调查局项目(编号: 201200010050048; 1212011220941); 国家自然科学基金项目(编号: 41171009) |
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| 中文摘要:华北平原是我国小麦、玉米等粮食作物主产区, 粮食产量占全国的10.6%。同时, 该平原也是我国地下水超采最为严重地区之一, 在13.92万km2的国土面积上分布着石家庄漏斗、保定漏斗和邯郸漏斗等地下水位降落漏斗群, 漏斗面积超过9 700 km2。该灌溉农业以开采地下水为主要供给水源, 农业开采量占华北平原地下水总开采量的65%以上。2009年12月《科学时报》刊发文章指出, 华北平原地下水危机影响我国的粮食安全。农业灌溉用水及其开采地下水的强度和超采程度, 与气候变化密切相关。气候变化不仅影响粮食作物灌溉需水量变化, 而且, 还显著影响农业开采量和地下水补给量变化, 尤其连年降水枯水或连年降水丰水, 对粮食主产井灌区地下水流场及其保障能力影响十分明显, 是一个重要研究课题。深入开展该课题研究, 对华北平原农业区地下水资源合理开发利用和提高粮食安全保障能力具有重要意义。 |
| 中文关键词:地下水 农业区保障能力 气候变化 农作物需水量 主控因素 |
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| Groundwater Ensure Capacity Spatial-temporal Characteristics and Mechanism in Main Grain Producing Areas of North China Plain under Different Climatic Conditions |
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| Abstract:North China Plain (NCP) is the main winter wheat and summer maize production area in china, grain production accounted for 10.6% of the country. At the same time, NCP is one of the most serious groundwater over exploitation areas, in 13.92 million km2 of land area distributed Shijiazhuang, Baoding and Handan groundwater level drawdown funnel group, and the funnel area of more than 9 700 km2. Agricultural mining accounted for more than 65% of the total exploitation of NCP. In December of 2009, “scientific times” pointed out that the water resource in the NCP crisis of our country food security. Irriga-tion water and groundwater over-exploitation density is closely related to climate change. Climate change is not only affecting irrigation water, agricultural ex-ploitation and groundwater recharge, but also groundwater field and groundwater ensure extent of well irrigation area, especially in continuous wet years or continuous dry years. So, It is of great significance to study the groundwater ensure extent in different climatic conditions. |
| keywords:10.3975/cagsb.2017.s1.13 |
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