2001-2018年黄河流域植被NPP的时空分异及生态经济协调性分析
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山东师范大学地理与环境学院

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YP79;K909

基金项目:

国家社会科学基金(18BJY086);山东省自然科学基金(ZR2012DM009)


Spatial-temporal differentiation and eco-economic coordination analysis of vegetation NPP in the Yellow River Basin from 2001 to 2018
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山东师范大学地理与环境学院

Fund Project:

National Social Science Foundation (18BJY086); Natural Science Foundation of Shandong Province (ZR2012DM009)

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    摘要:

    基于NDVI、LSWI、土地利用数据以及气象和统计数据借助CASA-VPM模型和生态经济协调耦合度模型分析了黄河流域2001-2018年植被NPP时空分异特征;探讨了生态和经济的发展现状,并以此对生态经济协调耦合度做出评价。结果表明:2001-2018年黄河流域植被NPP年平均值为288.33gC/(m2·a),且持续波动增加,空间上呈现出南高北低,平原、盆地高,高原、山地低的分布特征;不同植被类型月平均NPP变化呈现出周期性单峰型变化的特征且不同植被类型随时间变化的趋势和周期相同,但变化幅度和变化速率具有明显的区分度;研究区年总生态价值和经济价值拟合后分别呈现出“U”型和线性的变化特征,且后者增长速率远大于前者,空间上冷点区主要分布在西北部山地与高原边缘过渡地区,热点区域则主要位于黄河流域的“金三角”地带;研究区生态经济协调耦合度呈现出“大分散,小聚集” 的条带状空间分布特征且以“W”型曲线不断上升,经济发展水平是流域生态经济协调耦合度的主导因素。

    Abstract:

    Based on NDVI, LSWI, land use data and various meteorological and statistical data, with the help of CASA-VPM model and ecological economic coordination coupling degree model, the characteristics of the vegetation NPP temporal and spatial differentiation in the Yellow River Basin from 2001 to 2018 are analyzed; the current ecological and economic development status is discussed , And use it to evaluate the degree of ecological-economic coordination and coupling. The results show that the annual average NPP of vegetation in the Yellow River Basin from 2001 to 2018 was 288.33gC/m2·a-1, and the fluctuations continued to increase. The spatial distribution characteristics of the NPP are high in the south and low in the north, high in the plains and basins, and low in the plateaus and mountains. ; The monthly average NPP changes of different vegetation types show the characteristics of periodic single-peak changes, and the trends and cycles of different vegetation types over time are the same, but the amplitude and rate of change have obvious distinctions; the total annual ecological value of the study area After the economic value is fitted, they show "U"-shaped and linear change characteristics, and the latter has a much higher growth rate than the former. The cold spots are mainly distributed in the transitional area between the northwestern mountain and the plateau edge, and the hot spots are mainly located in the Yellow River The "Golden Triangle" area of the river basin; the ecological and economic coordination coupling degree of the study area presents a strip-like spatial distribution characteristic of "large dispersion, small aggregation" and rising with a "W" curve. The level of economic development is the ecological economic coordination coupling degree of the river basin The dominant factor.

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历史
  • 收稿日期:2020-09-19
  • 最后修改日期:2020-12-22
  • 录用日期:2020-12-24
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