Study on the Temporal and Spatial Pattern of Achnatherum splendens Community in Hulun Lake Area

DOI

10.2991/icoss-17.2017.13How to use a DOI?

Keywords

Asplendens community; Landsat; Spatio-temporal changes and pattern; Hulun Lake

Abstract

Achnatherum splendens community is one of the typically non-zonal vegetation occurred in arid and semi-arid regions. It plays important roles in maintaining species diversity and promoting regional livestock production. In this paper, methods of decision tree classification and change detection were adopted to identify the Achnatherum Splendens community from Landsat remote sensing data with two periods: 1985 and 2015, and its spatio-temporal changes and pattern were investigated. The results show that: (1) the distribution of Achnatherum Splendens community around the Hulun Lake area increased significantly over the past 30 years with area increasing by 148.39 ha, where the patches of area < 0.5 hectares increased fastest; (2) the NDVI and RVI value of Achnatherum Splendens community are clearly higher than that of typical steppes, suggesting it could produce more biomass compared others; and (3) the distribution of Achnatherum Splendens community mainly occurred in area of slope <5ø and adret, where generally hold more soil moisture, salinity and nutrient elements such as N,P and K.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Jianhua Mao
PY  - 2017/04
DA  - 2017/04
TI  - Study on the Temporal and Spatial Pattern of Achnatherum splendens Community in Hulun Lake Area
BT  - Proceedings of the 2017 International Conference on Society Science (ICoSS 2017)
PB  - Atlantis Press
SP  - 65
EP  - 75
SN  - 2352-5398
UR  - https://doi.org/10.2991/icoss-17.2017.13
DO  - 10.2991/icoss-17.2017.13
ID  - Mao2017/04
ER  -