| 引用本文: | 王露露,王天亮,高斌,等.黑龙江省松嫩平原土地盐碱化时空动态变化与影响因素分析[J].灌溉排水学报,2022,():-. |
| WANG Lulu,WANG Tianliang,GAO Bin,et al.黑龙江省松嫩平原土地盐碱化时空动态变化与影响因素分析[J].灌溉排水学报,2022,():-. |
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| 摘要: |
| 【目的】探究黑龙江省松嫩平原土地盐碱化时空动态变化和影响因素。【方法】利用遥感数据解译、相关性分析和相对贡献率分析等方法研究松嫩平原土地盐碱化面积的时空分布特点,并识别影响松嫩平原土地盐碱化面积变化的主要影响因素。【结果】(1)2000～2020年,松嫩平原土地盐碱化土地面积总体趋势在减少,减小速率为-13.67 km2/5a；(2)齐齐哈尔市、绥化市盐碱化程度加剧,大庆市碱化土地有明显改善,哈尔滨市的盐碱化土地虽逐步改善,但2020年出现了一定的反弹,存在进一步恶化风险。(3)松嫩平原各地市土地盐碱化面积变化主要原因：齐齐哈尔市和哈尔滨市为农作物播种面积与牲畜数量,绥化市为GDP、人口数量、农作物播种面积,大庆市为地表水资源量与蒸发量。【结论】松嫩平原土地盐碱化面积变化主要促进因素为社会经济发展、农牧业发展,同时气候方面的变化也对土地盐碱化产生一定的影响。直接影响因素为气候条件。在今后盐碱地改良与治理过程中,应当针对以上影响因素改进治理措施,使得土地盐碱化面积减小,提高土地利用效率。 |
| 关键词: 土地盐碱化;时空变化;遥感解译;松嫩平原;影响因素 |
| DOI： |
| 分类号:P237 |
| 基金项目:中国科学院战略性先导科技专项项目（XDA28020501）；黑龙江省松嫩平原水利综合规划专题研究(SJY-TRDC-2021) |
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| Analysis of spatial and temporal dynamics and influencing factors of land salinization in Songnen Plain, Heilongjiang Province |
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WANG Lulu1, WANG Tianliang2, GAO Bin3, HE Huaizhen2, DING Xiaowen1, HOU Baodeng3
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1.School of Environmental Science and Engineering,North China Electric Power University;2.Heilongjiang Water Conservancy Design Institute,Heilongjiang Province;3.China Institute of Water Resources and Hydropower Research
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| Abstract: |
| 【Objective】To explore the spatial-temporal dynamic changes and influencing factors of land salinization in Songnen Plain of Heilongjiang Province.【Method】Remote sensing data interpretation, correlation analysis and relative contribution rate analysis were used to study the spatial and temporal distribution characteristics of land salinization area in Songnen Plain, and the main influencing factors of land salinization area change were identified.【Results】(1) From 2000 to 2020, the salinized land area in Songnen Plain decreased with a decreasing rate of -13.67 km2/5a. (2) The salinization degree of Qiqihar city and Suihua city is aggravated, and the salinization land of Daqing city is improved obviously. Although the salinization land of Harbin city is improved gradually, it has a certain rebound in 2020, and there is a risk of further deterioration. (3) The main reasons for the change of land salinization area in different cities in Songnen Plain are as follows: Qiqihar and Harbin represent the sown area of crops and the number of livestock; Suihua represent GDP, population and sown area of crops; Daqing represent the amount of surface water resources and evaporation.【Conclusion】The main factors promoting the change of land salinization area in Songnen Plain are the development of social economy, agriculture and animal husbandry, and the change of climate also has a certain impact on land salinization. The direct influencing factor is climate condition. In the process of amelioration and treatment of saline-alkali land in the future, the management measures should be improved according to the above factors, so as to reduce the area of saline-alkali land and improve the efficiency of land use. |
| Key words: land salinization; Space-time change; Remote sensing interpretation; Songnen Plain; Factors affecting the |
