| 青海省海西州土地利用变化强度分析与稳定性研究 |
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| 引用本文： | 牛乐乐,张必成,贾天忠,佘雕.青海省海西州土地利用变化强度分析与稳定性研究[J].水土保持学报,2021,35(2):152-159. |
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| 作者姓名： | 牛乐乐 张必成 贾天忠 佘雕 |
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| 作者单位： | 1. 中国科学院水利部水土保持研究所, 陕西 杨凌 712100;2. 中国科学院大学, 北京 100049;3. 西北农林科技大学资源环境学院, 陕西 杨凌 712100;4. 西北农林科技大学水土保持研究所, 陕西 杨凌 712100 |
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| 基金项目： | 第二次青藏高原综合科学考察研究项目（2019QZKK0603） |
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| 摘 要： | 基于青海省海西蒙古族藏族自治州1995年、2000年、2010年和2018年4期土地利用数据,采用土地利用变化强度分析方法,从间隔层次、类别层次和转移层次3个方面对海西州1995—2018年土地利用变化强度及稳定性予以研究,深入分析了海西州不同层次土地利用强度变化过程与模式。结果表明:(1)间隔层次,海西州1995—2010年土地利用变化强度表现为慢速变化,2010—2018年土地利用变化强度呈快速变化。(2)地类层次,1995—2018年间,耕地和城乡、居民和建设用地(城居建设用地)变化活跃。1995—2000年水域变化处于相对稳定状态;2000—2010年水域、林地和草地变化相对活跃;2010—2018年间,水域和林地变化活跃,未利用地变化表现为稳定状态。(3)转移层次,1995—2018年增加的草地主要来源于未利用地、水域以及林地;耕地和城居建设用地向草地的转变过程均呈现出一种稳定的避免性系统转换模式;减少的耕地主要转变为城居建设用地,耕地向城居建设用地转移表现出稳定的倾向性系统模式。
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| 关 键 词： | 土地利用变化 土地利用转移矩阵 强度分析 稳定性 海西州 |
| 收稿时间： | 2020/10/22 0:00:00 |
Analysis on Intensity and Stability of Land Use Change in Haixi Mongolian and Tibetan Autonomous Prefecture of Qinghai Province |
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| NIU Lele,ZHANG Bicheng,JIA Tianzhong,SHE Diao.Analysis on Intensity and Stability of Land Use Change in Haixi Mongolian and Tibetan Autonomous Prefecture of Qinghai Province[J].Journal of Soil and Water Conservation,2021,35(2):152-159. |
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| Authors: | NIU Lele ZHANG Bicheng JIA Tianzhong SHE Diao |
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| Institution: | 1. Institute of Soil and Water Conservation, CAS&MWR, Yangling, Shaanxi 712100;2. University of Chinese Academy of Sciences, Beijing 100049;3. College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100;4. Institute of Soil and Water Conservation, Northwest A&F University, Yangling, Shaanxi 712100 |
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| Abstract: | Based on the land use information of four stages(1995,2000,2010,and 2018)in Haixi Mongolian and Tibetan Autonomous Prefecture,the intensity and stability of land use change from 1995—2018 were investigated using the analysis method of land use change intensity from three aspects of interval level,category level,and transfer level,and the change process and pattern of land use intensity at different levels were thoroughly analyzed.The results showed that:(1)At the interval level,the land use intensity of Haixi Mongolian and Tibetan Autonomous Prefecture changed slowly from 1995 to 2010,while the intensity changed rapidly during the period of 2010—2018.(2)At the category level,the cultivated land as well as the urban and rural,residential and construction land were the most active categories between 1995 and 2010.During the period 1995—2000,the change of the water area was relatively stable.The change of the water area,woodland,and grassland were relatively active from 2000 to 2010.In contrast,in 2010—2018,the change of the water area and the woodland were relatively active,while the change of the unused land was relatively stable.(3)At the transfer level,the increased grassland area mainly came from unused land,water area,and woodland during the period of 1995—2018.The transformation process of cultivated land as well as urban and rural,residential and construction land to grassland presented a stable avoidable system conversion pattern.In addition,the reduced cultivated land was mainly converted to urban and rural,residential and construction land.And the transformation of cultivated land to urban and rural,residential and construction land showed a stable tendentious system pattern. |
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| Keywords: | land use change land use transfer matrix intensity analysis stability Haixi Mongolian and Tibetan Autonomous Prefecture |
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