| 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 |
| |
| 关键词:10.3975/cagsb.2017.s1.13 |
| 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) |
|
| 摘要点击次数: 1823 |
| 全文下载次数: 1453 |
| 摘要: |
| Groundwater Ensure Capacity Spatial-temporal Characteristics and Mechanism in Main Grain Producing Areas of North China Plain under Different Climatic Conditions |
| 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. |
| WANG Dian-long,ZHANG Guang-hui.2017.Groundwater Ensure Capacity Spatial-temporal Characteristics and Mechanism in Main Grain Producing Areas of North China Plain under Different Climatic Conditions[J].Acta Geoscientica Sinica,38(s1):47-50. |
| 查看全文 查看/发表评论 下载PDF阅读器 |