| Cite this article: | 贾壮壮,谭亚男,管孝艳,等.宁夏盐碱地成因及分区治理措施综述[J].灌溉排水学报,0,():-. |
| JIA Zhuangzhuang,Tan Yanan,Guan Xiaoyan,et al.宁夏盐碱地成因及分区治理措施综述[J].灌溉排水学报,0,():-. |
|
| |
|
|
| This article has been：Browse 1234Times Download 0Times |
|
|
|
| DOI： |
|
| Review of the Causes of Saline - alkali Land in Ningxia and Regional Control Measures |
|
JIA Zhuangzhuang1, Tan Yanan1, Guan Xiaoyan2, WANG Zhongjing3, TAO Yuan1
|
|
1.China Institute of Water Resources and Hydropower Research,Beijing;2.China Institute of Water Resources and Hydropower Research，Beijing，100084，China;3.Ningxia University
|
| Abstract: |
| 【Objective】The aim was to overview the causes and control measures of saline-alkali land in typical areas of Ningxia Hui Autonomous Region, and to form an efficient management model of saline-alkali land.【Method】Hongsipu District, Pingluo County, Huinong District, Xingqing District and Helan County were selected as typical areas. The causes were reviewed considering soil texture, groundwater level, climatic conditions, irrigation and drainage conditions, topography and geomorphology and land use patterns. The control measures and application effect were summarized and evaluated from the perspectives of irrigation and drainage management, physical regulation, chemical conditioning and biological improvement, and to extract an efficient management model.【Results】The common causes of saline-alkali land in each area include drought and less rainfall, strong evaporation, influence of human activities, and uncoordinated irrigation and drainage. The main causes of the partition are the low salt leaching efficiency of the weak permeable layer and the depression in Hongsipu District, the high alkalinity of the Baijiang soil in Xidatan, Pingluo County, and the planting of crops in Qukou Township, the groundwater in Huinong District is high perennially supported by the Yellow River, the aeolian sandy soil in Xingqing District accelerates the evaporation and salt return of the soil, and the high salt content of the parent material of the soil in Helan County and the poor drainage in the low-lying areas. The basic control measures of each area are to establish a good irrigation and drainage system, and the targeted of typical area control measures include breaking the weak permeable layer through physical regulation to form a coherent drainage channel in Hongsipu District, focusing on improving the soil structure of white stiff soil in Xidatan of Pingluo County and impelling rational utilization of land in Qukou Township, optimizing the water supply pattern to，promoteing drainage and lowering groundwater level as a major measure in Huinong District, rational irrigation to acheve salt suppression and fertilizer cultivation to improve fertility in Xingqing District, improving soil characteristics, drainage and the study of rice fish breeding cycle pattern in Helan County.【Conclusion】Good irrigation and drainage conditions should be established in each partition, and other management measures should be also taken into account, water and salt monitoring should be strengthened and multiple measures should be taken to comprehensicely control the saline-alkali land in typical areas of Ningxia Hui Autonomous Region. |
| Key words: Ningxia; saline land in Ningxia; causes of typical area; measures of classification governance; |
|
|
|
|
|
|
