Natural restoration potential of vegetation in Mongolia

doi:10.7522/j.issn.1000-694X.2021.00047

Journal of Desert Research ›› 2021, Vol. 41 ›› Issue (5): 192-201.DOI: 10.7522/j.issn.1000-694X.2021.00047

Natural restoration potential of vegetation in Mongolia

Zhentao Lv¹^,²^,³^,⁵(), Shengyu Li¹^,²^,³^,⁵(), Jinglong Fan¹^,²^,⁴^,⁵, Guojun Liu¹^,²^,⁴^,⁵, Haifeng Wang¹^,²^,³^,⁵, Xiaoyu Meng¹^,²^,³^,⁵

^1.State Key Laboratory of Desert and Oasis Ecology /, Xinjiang Institute of Ecology and Geography，Chinese Academy of Sciences，Urumqi 830011，China
^2.National Engineering Research Center for Desert-Oasis Ecological Construction /, Xinjiang Institute of Ecology and Geography，Chinese Academy of Sciences，Urumqi 830011，China
^3.Mosuowan Desert Research Station /, Xinjiang Institute of Ecology and Geography，Chinese Academy of Sciences，Urumqi 830011，China
^4.Taklimakan Desert Research Station, Xinjiang Institute of Ecology and Geography，Chinese Academy of Sciences，Urumqi 830011，China
^5.University of Chinese Academy of Sciences，Beijing 100049，China

Received:2021-01-15 Revised:2021-04-13 Online:2021-09-20 Published:2021-09-23
Contact: Shengyu Li

Abstract

Abstract:

Assessment of natural restoration capacity of vegetation is an important part of ecological restoration practice. This article， based on the MODIS Enhanced Vegetation Index （EVI）， meteorological data and soil data of Mongolia， build the vegetation restoration potential calculation model on the “similar habitat”， calculate the Mongolia vegetation restoration potential value （VRP， representative in the area under the condition of natural vegetation to restore to the best condition） and vegetation restoration potential index （VRPI， on behalf of the vegetation growth status and potential difference between the largest）. And use the sampling analysis data from Mongolian through long-term enclosure along the railway area to verify the research findings. The results showed that ：（1） There is a high vegetation restoration potential in Mongolia， and the natural vegetation restoration potential value is mostly between 0.6 and 0.9. （2） Under the influence of spatial differentiation of natural factors such as precipitation， air temperature and soil， the natural restoration potential of vegetation in Mongolia has great spatial differences. The northern and eastern regions are the regions with high VRP value and low VRPI value. Suggest that the vegetation was slightly degraded and easy to recover. In the southern and western regions， there are middle and low values of VRP and high values of VRPI. The degree of vegetation degradation is severe and the restoration is relatively difficult. The results of this study can provide scientific reference for the restoration of degraded vegetation in Mongolia according to local conditions.

Key words: Mongolia, vegetation restoration potential, similar habitat windows, GWR, GEE

CLC Number:

Q948.15

Zhentao Lv, Shengyu Li, Jinglong Fan, Guojun Liu, Haifeng Wang, Xiaoyu Meng. Natural restoration potential of vegetation in Mongolia[J]. Journal of Desert Research, 2021, 41(5): 192-201.

Figures/Tables 10

References 36

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拟合方程	R²	P
y =0.8416x-0.4023	0.69	0.007
y =0.0133e^3.6031x	0.770	0.09
y =0.6176ln(x)+0.4158	0.668	0.008
y =1.5814x²-1.5607x+0.4835	0.715	0.009

拟合方程	R²	P
y =0.8416x-0.4023	0.69	0.007
y =0.0133e^3.6031x	0.770	0.09
y =0.6176ln(x)+0.4158	0.668	0.008
y =1.5814x²-1.5607x+0.4835	0.715	0.009

回归方程	R²	P
y =-0.7494x+0.7163	0.782	0.005
y =1.6431e^-3.342^x	0.687	0.169
y =-0.384lnx +0.0465	0.748	0.006
y=-0.2852x²-0.422x+0.6319	0.785	0.006

回归方程	R²	P
y =-0.7494x+0.7163	0.782	0.005
y =1.6431e^-3.342^x	0.687	0.169
y =-0.384lnx +0.0465	0.748	0.006
y=-0.2852x²-0.422x+0.6319	0.785	0.006

回归方程	R²	P
y=0.255x + 0.0316	0.0967	0.421
y=0.0346e^2.2224^x	0.1666	0.0281
y=0.1869ln(x) + 0.2797	0.0963	0.421
y=-0.4755x² +0.9665x-0.2259	0.0997	0.733

Natural restoration potential of vegetation in Mongolia

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项目	级别
项目	1级	2级	3级	4级	5级
VRPI值	0.8—1	0.6—0.8	0.4—0.6	0.2—0.4	0—0.2
面积/km²	27.13	38.78	35.48	45.36	34.90
占比/%	14.93	21.35	19.53	24.97	19.21

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