Net Primary Productivity Pattern of Grassland in China and Its Relationship with Hydrothermal Factors During 1993-2015

LIU Xuejia; ZHAO Jie; DU Ziqiang; ZHANG Hong

doi:10.13961/j.cnki.stbctb.2018.01.052

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Net Primary Productivity Pattern of Grassland in China and Its Relationship with Hydrothermal Factors During 1993-2015

- Net Primary Productivity Pattern of Grassland in China and Its Relationship with Hydrothermal Factors During 1993-2015
- Bulletin of Soiland Water Conservation Vol. 38, Issue 1, Pages: 299-305(2018)
- 作者机构：
  
  1. 山西大学环境与资源学院,山西,太原,030006
  2. 山西大学黄土高原研究所,山西,太原,030006
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2018.01.052
  CLC：
- Published：2018
- 稿件说明：
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LIU Xuejia, ZHAO Jie, DU Ziqiang, et al. Net Primary Productivity Pattern of Grassland in China and Its Relationship with Hydrothermal Factors During 1993-2015[J]. Bulletin of Soiland Water Conservation, 2018, 38(1): 299-305.
DOI：

LIU Xuejia, ZHAO Jie, DU Ziqiang, et al. Net Primary Productivity Pattern of Grassland in China and Its Relationship with Hydrothermal Factors During 1993-2015[J]. Bulletin of Soiland Water Conservation, 2018, 38(1): 299-305. DOI： 10.13961/j.cnki.stbctb.2018.01.052.

摘要

[目的

]

估算1993-2015年中国草地净初级生产力（net primary productivity，NPP），分析其时空变化格局及与水热因子的关系，了解这一时期中国草地生态系统的生产力水平及其对水热因子变化的响应。[方法

]

基于长时间序列遥感数据，气象数据和植被类型数据，运用CASA模型（Carnegie-Ames-Stanford Approach）估算草地净初级生产力，利用一元线性回归、二阶偏相关分析以及GIS空间分析方法，探讨草地NPP的变化趋势以及与对水热因子的关系。[结果

]

①1993-2015年，中国草地NPP年均总量为7.595×10

g （以C计），单位面积NPP均值为296.76 g/m

/a。总体上，草地NPP呈现从东部到西部、从南部到北部逐渐减少的空间分布特征。②1993-2015年草地NPP总量以-1.415×10

g/a的线性速率（p>0.05）波动式下降。其中，1993-2010年草地NPP总量以-2.312×10

g/a的线性速率（p

0.05）显著降低，2011-2015年草地NPP总量以7.00×10

g/a的线性速率（p>0.05）波动式上升。1993-2015年，NPP呈减少态势的面积大于NPP呈增加态势的面积且40.40%的草地NPP呈现显著性变化。③年际变化上，除去2011年以来草地NPP的波动性变化，草地NPP与太阳总辐射和降水量的二阶偏相关性显著，与年平均气温没有表现出显著的相关关系。空间分布上，草地NPP与太阳辐射显著偏相关的面积 > 与降水显著偏相关的面积 > 与气温显著偏相关的面积。[结论

]

1993-2015年，中国草地NPP总体上呈现普遍降低、局部改善的变化特征。这种变化主要受到太阳总辐射和降水量的影响，受温度变化的影响较弱。

Abstract

[Objective] To estimate the net primary productivity (NPP) of grassland in China during the period from 1993 to 2015

and analyze the relationship between NPP and hydrothermal factors

in order to understand the productivity of grassland and the impacts of climate change on ecosystems.[Methods] Based on long-term remote sensing data

meteorological data and vegetation type data

we used CASA model (Carnegie-Ames-Stanford approach) to estimate the NPP of grassland in China. The variation of NPP and the responses of NPP to hydrothermal factors were calculated by using one-way linear regression

second-order partial correlation analysis and GIS spatial analysis.[Results] ① The total annual NPP of grassland was 7.60×1014 g (measured in term of carbon)

and the annual average NPP per unit area was 296.76 g/(m2·a). The NPP of grassland decreased gradually from south to north

and from east to west in China. ② The total NPP of grassland in China decreased undulately with the linear rate of -1.415×1012 g/a (p>0.05) from 1993 to 2015. The total NPP of grassland decreased significantly at a rate of -2.312×1012 g/a (p<0.05) from 1993 to 2010

while increased at a rate of 7.00×1011 g/a (p>0.05) from 2011 to 2015. In total

the area of grassland with decreasing NPP was larger than that with increasing NPP

and the NPP in 40.40% grassland changed significantly. ③ Annually

the second-order partial correlation between NPP and total solar radiation and precipitation was statistically significant

while that between NPP and annual mean temperature was insignificant. In terms of area

the significant partial correlation area between NPP and solar radiation was the biggest

followed by that between NPP and precipitation

and the significant partial correlation area between NPP and annual mean temperature was the smallest.[Conclusion] Grassland NPP in China declined widely while increased locally from 1993 to 2015. This variation was mainly affected by total solar radiation and precipitation.

关键词

Keywords

references

Bao Gang, Bao Yuhai, Qin Zhihao, et al. Modeling net primary productivity of terrestrial ecosystems in the semi-arid climate of the Mongolian Plateau using LSWI-based CASA ecosystem model[J]. International Journal of Applied Earth Observation and Geoinformation, 2016,46:84-93.

Gao Tian, Xu Bin, Yang Xiuchun, et al. Aboveground net primary productivity of vegetation along a climate-related gradient in a Eurasian temperate grassland:Spatiotemporal patterns and their relationships with climate factors[J]. Environmental Earth Sciences, 2017,76(1):56.

Piao Shilong, Fang Jingyun, Zhou Liming, et al. Changes in vegetation net primary productivity from 1982 to 1999 in China[J]. Global Biogeochemical Cycles,2005,19(2):1605-1622.

Ni Jian. Carbon storage in grasslands of China[J]. Journal of Arid Environments, 2002,50(2):205-218.

吴娴,王玉,庄亮.基于高分辨率格点数据集的中国气温与降水时空分布及变化趋势分析[J].气象与减灾研究,2016,39(4):241-251.

陶苏林,戚易明,申双和,等.中国1981-2014年太阳总辐射的时空变化[J].干旱区资源与环境,2016,30(11):143-147.

周伟,牟凤云,刚成诚,等.1982-2010年中国草地净初级生产力时空动态及其与气候因子的关系[J].生态学报,2017,37(13):1-11.

张美玲,蒋文兰,陈全功,等.基于CSCS改进CASA模型的中国草地净初级生产力模拟[J].中国沙漠,2014,34(4):1150-1160.

陈世荣,王世新,周艺.基于遥感的中国草地生产力初步计算[J].农业工程学报,2008,24(1):208-212.

胡中民,樊江文,钟华平,等.中国温带草地地上生产力沿降水梯度的时空变异性[J].中国科学(D辑):地球科学,2006,36(12):1154-1162.

沈海花,朱言坤,赵霞,等.中国草地资源的现状分析[J].科学通报,2016,61(2):139-154.

石志华,刘梦云,吴健利,等.基于CASA模型的陕西省植被净初级生产力时空分析[J].水土保持通报,2016,36(1):206-211.

赵杰,刘雪佳,杜自强,等.昼夜增温速率的不对称性对新疆地区植被动态的影响[J].中国环境科学,2017,37(6):2316-2321.

Cramer W, Kicklighter D W, Bondeau A, et al. Comparing global models of terrestrial net primary productivity(NPP):Overview and key results[J]. Global Change Biology, 1999,5(S1):1-15.

周广胜,张新时.自然植被净第一性生产力模型初探[J].植物生态学报,1995,19(3):193-200.

周广胜,张新时.全球变化的中国气候-植被分类研究[J].植物学报,1996,38(1):8-17.

朱文泉.中国陆地生态系统植被净初级生产力遥感估算及其与气候变化关系的研究[D].北京:北京师范大学,2005.

高艳妮,于贵瑞,张黎,等.中国陆地生态系统净初级生产力变化特征:基于过程模型和遥感模型的评估结果[J].地理科学进展,2012,31(1):109-117.

Ruimy A, Kergoat L, Bondeau A. Comparing global models of terrestrial net primary productivity(NPP):Analysis of differences in light absorption and light-use efficiency[J]. Global Change Biology, 1999,5(S1):56-64.

穆少杰,李建龙,周伟,等.2001-2010年内蒙古植被净初级生产力的时空格局及其与气候的关系[J].生态学报,2013,33(12):3752-3764.

吴楠,高吉喜,苏德毕力格,等.长江上游植被净初级生产力年际变化规律及其对气候的响应[J].长江流域资源与环境,2010,19(4):389-396.

张峰,周广胜,王玉辉.基于CASA模型的内蒙古典型草原植被净初级生产力动态模拟[J].植物生态学报,2008,32(4):786-797.

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