Remotely-sensed Estimation of Net Primary Productivity and Its Spatial-temporal Characteristics in Kaidu-Kongque River Basin from 2001 to 2013

WANG Hui; LIU Hailong; BAO Anming; GUO Hui; ZHAO Wenyu

doi:10.13961/j.cnki.stbctb.2016.05.042

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Remotely-sensed Estimation of Net Primary Productivity and Its Spatial-temporal Characteristics in Kaidu-Kongque River Basin from 2001 to 2013

- Remotely-sensed Estimation of Net Primary Productivity and Its Spatial-temporal Characteristics in Kaidu-Kongque River Basin from 2001 to 2013
- Bulletin of Soiland Water Conservation Vol. 36, Issue 5, Pages: 220-224(2016)
- 作者机构：
  
  1. 石河子大学水利建筑工程学院,新疆,石河子,832003
  2. 中国科学院新疆生态与地理研究所,新疆,乌鲁木齐,830011
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2016.05.042
  CLC：
- Published：2016
- 稿件说明：
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WANG Hui, LIU Hailong, BAO Anming, et al. Remotely-sensed Estimation of Net Primary Productivity and Its Spatial-temporal Characteristics in Kaidu-Kongque River Basin from 2001 to 2013[J]. Bulletin of Soiland Water Conservation, 2016, 36(5): 220-224.
DOI：

WANG Hui, LIU Hailong, BAO Anming, et al. Remotely-sensed Estimation of Net Primary Productivity and Its Spatial-temporal Characteristics in Kaidu-Kongque River Basin from 2001 to 2013[J]. Bulletin of Soiland Water Conservation, 2016, 36(5): 220-224. DOI： 10.13961/j.cnki.stbctb.2016.05.042.

摘要

[目的] 估算2001-2013年开孔河流域净初级生产力（NPP），并分析其时空分布特征和未来变化趋势，为自然资源的管理和有效利用提供依据。[方法] 基于MODIS植被指数（NDVI）产品数据、气象数据和植被分类数据，利用改进的CASA模型。[结果] 2001-2013年开孔河流域年均NPP呈逐渐增长趋势；空间上表现为西北高、东南低的特征，以开孔河为高值中心呈带状分布；NPP年内变化较大，夏季最高，占全年的65.30%，冬季仅有2.13%，为各季最低；Hurst指数与Slope趋势空间耦合图表明流域内未来NPP将呈增长趋势。[结论] 开孔河流域生态环境呈良性发展的态势且季节差异明显、区域差异明显。

Abstract

[Objective] The paper estimates the net primary productivity(NPP) of the Kaidu-Kongque river basin

and analyzes its spatial and temporal distribution characteristics and the future tendency

in order to provide the basis for the management and effective use of natural resources.[Methods] MODIS vegetation index(NDVI) data

meteorological and vegetation classification data was collected from 2001 to 2013. The improved CASA model was used.[Results] The annual NPP showed a gradually increasing trend

and it was high in northwest but low in southeast. The NPP values showed a zonal distribution with Kiadu-Kongque river as the center(highest NPP value). The annual variation of NPP was great

the highest NPP occurred in summer(65.30%) while the lowest NPP occurred in winter (2.13%). From the Hurst index and slope trend of NPP spatial coupling graph

an increasing trend in NPP could be expected in the future.[Conclusion] The development of ecological environment in the Kaidu-Kongque river basin is sustainable

and the seasonal and regional difference is obvious.

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