| 摘要: |
| 为了科学分析和定向预测土地利用演变带来的生境质量变化, 拓展生态环境数字化治理手段,
以云南滇中地区为研究对象, 基于 6 期土地利用遥感监测数据, 结合 Patch-generating land use simulation
(PLUS) 模型和 Integrated valuation of ecosystem services and tradesoff (InVest) 模型, 分析了 1995—2020
年、 2030 年、 2040 年研究区土地利用与生境质量的时空演变特征。 结果表明, (1) 25 a 间, 研究区土地
利用以林草地和耕地发展为主, 其中林草地是其他地类扩张发展的用地来源。 (2) 生境质量整体属于中
等水平, 1995—2010 年年度生境质量差异不大, 而在 2010—2020 年出现明显的退化趋势。 研究区生境质
量空间格局表现为 “西部高、 南北部居中、 中东部低” 的态势。 (3) 研究区生境质量在空间上表现出显
著的空间聚集特征。 生境质量热点分布区域以林地增长、 转移区域为主, 数据显示林草地面积增加, 热
点区域增加; 生境质量冷点区域的增加、 转移主要是因为建设用地和耕地的扩展。 (4) 利用模型开展不
同目的的用地规划模拟, 可从空间分布和数量管控上定向改变地类转化趋势, 提高生态源地地块生境
质量。 |
| 关键词: 生境质量 土地利用变化 时空演变 PLUS 模型 InVEST 模型 |
| DOI： |
| 分类号: |
| 基金项目: |
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| Habitat Quality Analysis and Spatial-temporal Evolution Simulation in Central Yunnan Region |
|
zhang Jinxiu1, WANG Pu2, ZHANG Rong1, LI Hong1
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1.Southwest Investigation and Planning Institute of National Forestry and Grassland Administration;2.Key Laboratory of Digital Earth Science, Aerospace Information Research Institute, Chinese Academy of Sciences
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| Abstract: |
| To scientifically analyze and predict the habitat quality changes caused by land-use evolution,
and expand the digital management of the ecological environment, the study focused on the central Yunnan
region. Based on six periods of land-use data, the Patch-generating land use simulation model (PLUS) and
Integrated valuation of ecosystem services and tradesoff model (InVEST) were used to predict and analyze the
spatial-temporal evolution characteristics of land-use and habitat quality in the study area from 1995 to 2020, as
well as for 2030 and 2040. The results indicated that: (1) In the past 25 years, the land-use development and
changes in the study area were mainly based on the development of forests, grasslands, and arable land, where
forests and grasslands were the main sources for land expansion and development of other land types. (2) The overall habitat quality in the study area belonged to a moderate level with little change from 1995 to 2010, while
there was a degradation trend from 2010 to 2020. The spatial distribution of habitat quality in the study area
showed a trend of "high in the west, middle in the north and south, and low in the middle and east". (3) The
habitat quality in the study area exhibited significant spatial clustering characteristics. The distribution area of habitat quality hot-spots was mainly dominated by the increase and transfer of forests. The data showed that the hotspots increased with the rise of forests and grasslands. The increase and transfer of habitat quality cold-spots were
mainly caused by expanding construction land and arable land. (4) By using the models to simulate land-use
planning for different purposes, it was possible to change the trend of land-use transformation in terms of spatial
distribution and quantity control to improve the habitat quality of ecological source areas. |
| Key words: habitat quality land use change spatial-temporal evolution PLUS model InVEST model |
