The Changes of Soil Physical Properties of Alpine Grassland Desertification Process in Northwest Sichuan——Taking Litang County as an Example

LIU Shuo; FEI Dong; CAI Fan-long

doi:10.16779/j.cnki.1003-5508.2017.02.005

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Volume 38 Issue 2

Nov. 2019

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Article Navigation > Journal of Sichuan Forestry Science and Technology > 2017 > 38(2): 31-35

LIU Shuo, FEI Dong, CAI Fan-long. The Changes of Soil Physical Properties of Alpine Grassland Desertification Process in Northwest Sichuan——Taking Litang County as an Example[J]. Journal of Sichuan Forestry Science and Technology, 2017, 38(2): 31-35. doi: 10.16779/j.cnki.1003-5508.2017.02.005

Citation:

LIU Shuo, FEI Dong, CAI Fan-long. The Changes of Soil Physical Properties of Alpine Grassland Desertification Process in Northwest Sichuan——Taking Litang County as an Example[J]. Journal of Sichuan Forestry Science and Technology, 2017, 38(2): 31-35. doi: 10.16779/j.cnki.1003-5508.2017.02.005

The Changes of Soil Physical Properties of Alpine Grassland Desertification Process in Northwest Sichuan——Taking Litang County as an Example

doi: 10.16779/j.cnki.1003-5508.2017.02.005

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Sichuan Forest Inventory and Plan Institute, Chengdu 610081, Sichuan, China

Received Date: 2016-12-12

Abstract

In this paper,alpine grassland in Litang County was regarded as the research object,analysis was made of vegetation characteristics of different types of grassland in this area by using the method of the space sequence research instead of time series.The results showed that there were 30 families,89 genera and 174 species of common plants in the sandy grassland in the northwest of Sichuan Province including 6 families,8 genera,15 species of shrubs,and 24 families,81 genera,159 species of herbaceous plants.Besides,the coverage and biomass (total biomass,aboveground and underground biomass) of all kinds of sandy land showed regular changes with the aggravation of the degree of desertification.The change sequence of the coverage rate from high to low was non sandy land (control),mild sandy land,moderate sandy land,severe sandy land,extremely heavy sandy land.Thirdly,the number sequence of plant species was moderate sandy land,severe sandy land,mild sandy land,non sandy land (control),extremely heavy sandy land.Lastly,the sequence of community dominant species number was moderate sandy land,severe sandy land,mild sandy land,non sandy land (control),extremely heavy sandy land without obvious dominant species.
- Northwest Sichuan;
- Arctic-alpine grassland;
- Desertification;
- Vegetation characteristics
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

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The Changes of Soil Physical Properties of Alpine Grassland Desertification Process in Northwest Sichuan——Taking Litang County as an Example

doi: 10.16779/j.cnki.1003-5508.2017.02.005

Sichuan Forest Inventory and Plan Institute, Chengdu 610081, Sichuan, China

Received Date: 2016-12-12

Key words:

Abstract: In this paper,alpine grassland in Litang County was regarded as the research object,analysis was made of vegetation characteristics of different types of grassland in this area by using the method of the space sequence research instead of time series.The results showed that there were 30 families,89 genera and 174 species of common plants in the sandy grassland in the northwest of Sichuan Province including 6 families,8 genera,15 species of shrubs,and 24 families,81 genera,159 species of herbaceous plants.Besides,the coverage and biomass (total biomass,aboveground and underground biomass) of all kinds of sandy land showed regular changes with the aggravation of the degree of desertification.The change sequence of the coverage rate from high to low was non sandy land (control),mild sandy land,moderate sandy land,severe sandy land,extremely heavy sandy land.Thirdly,the number sequence of plant species was moderate sandy land,severe sandy land,mild sandy land,non sandy land (control),extremely heavy sandy land.Lastly,the sequence of community dominant species number was moderate sandy land,severe sandy land,mild sandy land,non sandy land (control),extremely heavy sandy land without obvious dominant species.