Research on Estimation of Wetland Area Based on Spacial Sampling Method-A Case Study of Ningxia Hui Autonomous Region in China

Ma Wei; Zhang Yangwu; Zhou Tianyuan; Jiang Yafang; Liu Zengli

doi:doi:10.11648/j.earth.20211006.15

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Research on Estimation of Wetland Area Based on Spacial Sampling Method-A Case Study of Ningxia Hui Autonomous Region in China

Ma Wei, Zhang Yangwu, Zhou Tianyuan, Jiang Yafang, Liu Zengli

Published in Earth Sciences (Volume 10, Issue 6)

Received: 25 October 2021 Accepted: 15 November 2021 Published: 17 November 2021

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Abstract

Investigation and monitoring of wetland is an important and fundamental work. Wetland area estimation by systematic sampling would have higher precision than that get by traditional random sampling. In this paper, wetland areas of different types in Ningxia were estimated by spacial sampling method, based on remote sensing data from 2015 to 2016. Results showed that: 1) According to the second national wetland resource inventory database, wetland area in Ningxia was 20.72×10⁴ hm², which decreased gradually from north to south, and Wuzhong had relatively largest areas of lakes and marsh wetland. 2) Based with 210 of 4 km×4 km quadrat sampling grids, estimation of wetland area in Ningxia was 21.70×10⁴ hm², with estimation accuracy of 94.53% and sampling accuracy of 99.78%, which was reliability but the sampling accuracy would decline with the proportion decrease of sampling wetland area. 3) Based with 61 of 4 km×4 km quadrat sampling grids, wetland area in Wuzhong was estimated as 52320.67 hm² with estimation accuracy of 98.58%, occurred in a net increase of 731.78 hm² from 2013 to 2016. In conclusion, the spacial sampling method proposed in this research for wetland resource inventory and dynamic monitoring is available and worth of spreading within certain realms, which would improve the protection, management, restoration and sustainable development for wetland resource.

Published in	Earth Sciences (Volume 10, Issue 6)
DOI	10.11648/j.earth.20211006.15
Page(s)	292-297
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2021. Published by Science Publishing Group

Keywords

Wetland Area, Spacial Sampling, Sampling Grids, Estimation Accuracy, Dynamic Monitoring

References

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APA Style

Ma Wei, Zhang Yangwu, Zhou Tianyuan, Jiang Yafang, Liu Zengli. (2021). Research on Estimation of Wetland Area Based on Spacial Sampling Method-A Case Study of Ningxia Hui Autonomous Region in China. Earth Sciences, 10(6), 292-297. https://doi.org/10.11648/j.earth.20211006.15

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ACS Style

Ma Wei; Zhang Yangwu; Zhou Tianyuan; Jiang Yafang; Liu Zengli. Research on Estimation of Wetland Area Based on Spacial Sampling Method-A Case Study of Ningxia Hui Autonomous Region in China. Earth Sci. 2021, 10(6), 292-297. doi: 10.11648/j.earth.20211006.15

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AMA Style

Ma Wei, Zhang Yangwu, Zhou Tianyuan, Jiang Yafang, Liu Zengli. Research on Estimation of Wetland Area Based on Spacial Sampling Method-A Case Study of Ningxia Hui Autonomous Region in China. Earth Sci. 2021;10(6):292-297. doi: 10.11648/j.earth.20211006.15

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@article{10.11648/j.earth.20211006.15,
  author = {Ma Wei and Zhang Yangwu and Zhou Tianyuan and Jiang Yafang and Liu Zengli},
  title = {Research on Estimation of Wetland Area Based on Spacial Sampling Method-A Case Study of Ningxia Hui Autonomous Region in China},
  journal = {Earth Sciences},
  volume = {10},
  number = {6},
  pages = {292-297},
  doi = {10.11648/j.earth.20211006.15},
  url = {https://doi.org/10.11648/j.earth.20211006.15},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.earth.20211006.15},
  abstract = {Investigation and monitoring of wetland is an important and fundamental work. Wetland area estimation by systematic sampling would have higher precision than that get by traditional random sampling. In this paper, wetland areas of different types in Ningxia were estimated by spacial sampling method, based on remote sensing data from 2015 to 2016. Results showed that: 1) According to the second national wetland resource inventory database, wetland area in Ningxia was 20.72×104 hm2, which decreased gradually from north to south, and Wuzhong had relatively largest areas of lakes and marsh wetland. 2) Based with 210 of 4 km×4 km quadrat sampling grids, estimation of wetland area in Ningxia was 21.70×104 hm2, with estimation accuracy of 94.53% and sampling accuracy of 99.78%, which was reliability but the sampling accuracy would decline with the proportion decrease of sampling wetland area. 3) Based with 61 of 4 km×4 km quadrat sampling grids, wetland area in Wuzhong was estimated as 52320.67 hm2 with estimation accuracy of 98.58%, occurred in a net increase of 731.78 hm2 from 2013 to 2016. In conclusion, the spacial sampling method proposed in this research for wetland resource inventory and dynamic monitoring is available and worth of spreading within certain realms, which would improve the protection, management, restoration and sustainable development for wetland resource.},
 year = {2021}
}

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TY  - JOUR
T1  - Research on Estimation of Wetland Area Based on Spacial Sampling Method-A Case Study of Ningxia Hui Autonomous Region in China
AU  - Ma Wei
AU  - Zhang Yangwu
AU  - Zhou Tianyuan
AU  - Jiang Yafang
AU  - Liu Zengli
Y1  - 2021/11/17
PY  - 2021
N1  - https://doi.org/10.11648/j.earth.20211006.15
DO  - 10.11648/j.earth.20211006.15
T2  - Earth Sciences
JF  - Earth Sciences
JO  - Earth Sciences
SP  - 292
EP  - 297
PB  - Science Publishing Group
SN  - 2328-5982
UR  - https://doi.org/10.11648/j.earth.20211006.15
AB  - Investigation and monitoring of wetland is an important and fundamental work. Wetland area estimation by systematic sampling would have higher precision than that get by traditional random sampling. In this paper, wetland areas of different types in Ningxia were estimated by spacial sampling method, based on remote sensing data from 2015 to 2016. Results showed that: 1) According to the second national wetland resource inventory database, wetland area in Ningxia was 20.72×104 hm2, which decreased gradually from north to south, and Wuzhong had relatively largest areas of lakes and marsh wetland. 2) Based with 210 of 4 km×4 km quadrat sampling grids, estimation of wetland area in Ningxia was 21.70×104 hm2, with estimation accuracy of 94.53% and sampling accuracy of 99.78%, which was reliability but the sampling accuracy would decline with the proportion decrease of sampling wetland area. 3) Based with 61 of 4 km×4 km quadrat sampling grids, wetland area in Wuzhong was estimated as 52320.67 hm2 with estimation accuracy of 98.58%, occurred in a net increase of 731.78 hm2 from 2013 to 2016. In conclusion, the spacial sampling method proposed in this research for wetland resource inventory and dynamic monitoring is available and worth of spreading within certain realms, which would improve the protection, management, restoration and sustainable development for wetland resource.
VL  - 10
IS  - 6
ER  -

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Author Information

Ma Wei

Academy of Forest Inventory and Planning, National Forestry and Grassland Administration, Beijing, China
Zhang Yangwu

Department of Natural Resources Investigation and Monitoring, Ministry of Natural Resources, Beijing, China
Zhou Tianyuan

Academy of Forest Inventory and Planning, National Forestry and Grassland Administration, Beijing, China
Jiang Yafang

Academy of Forest Inventory and Planning, National Forestry and Grassland Administration, Beijing, China
Liu Zengli

Academy of Forest Inventory and Planning, National Forestry and Grassland Administration, Beijing, China

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APA Style

Ma Wei, Zhang Yangwu, Zhou Tianyuan, Jiang Yafang, Liu Zengli. (2021). Research on Estimation of Wetland Area Based on Spacial Sampling Method-A Case Study of Ningxia Hui Autonomous Region in China. Earth Sciences, 10(6), 292-297. https://doi.org/10.11648/j.earth.20211006.15

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ACS Style

Ma Wei; Zhang Yangwu; Zhou Tianyuan; Jiang Yafang; Liu Zengli. Research on Estimation of Wetland Area Based on Spacial Sampling Method-A Case Study of Ningxia Hui Autonomous Region in China. Earth Sci. 2021, 10(6), 292-297. doi: 10.11648/j.earth.20211006.15

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AMA Style

Ma Wei, Zhang Yangwu, Zhou Tianyuan, Jiang Yafang, Liu Zengli. Research on Estimation of Wetland Area Based on Spacial Sampling Method-A Case Study of Ningxia Hui Autonomous Region in China. Earth Sci. 2021;10(6):292-297. doi: 10.11648/j.earth.20211006.15

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@article{10.11648/j.earth.20211006.15,
  author = {Ma Wei and Zhang Yangwu and Zhou Tianyuan and Jiang Yafang and Liu Zengli},
  title = {Research on Estimation of Wetland Area Based on Spacial Sampling Method-A Case Study of Ningxia Hui Autonomous Region in China},
  journal = {Earth Sciences},
  volume = {10},
  number = {6},
  pages = {292-297},
  doi = {10.11648/j.earth.20211006.15},
  url = {https://doi.org/10.11648/j.earth.20211006.15},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.earth.20211006.15},
  abstract = {Investigation and monitoring of wetland is an important and fundamental work. Wetland area estimation by systematic sampling would have higher precision than that get by traditional random sampling. In this paper, wetland areas of different types in Ningxia were estimated by spacial sampling method, based on remote sensing data from 2015 to 2016. Results showed that: 1) According to the second national wetland resource inventory database, wetland area in Ningxia was 20.72×104 hm2, which decreased gradually from north to south, and Wuzhong had relatively largest areas of lakes and marsh wetland. 2) Based with 210 of 4 km×4 km quadrat sampling grids, estimation of wetland area in Ningxia was 21.70×104 hm2, with estimation accuracy of 94.53% and sampling accuracy of 99.78%, which was reliability but the sampling accuracy would decline with the proportion decrease of sampling wetland area. 3) Based with 61 of 4 km×4 km quadrat sampling grids, wetland area in Wuzhong was estimated as 52320.67 hm2 with estimation accuracy of 98.58%, occurred in a net increase of 731.78 hm2 from 2013 to 2016. In conclusion, the spacial sampling method proposed in this research for wetland resource inventory and dynamic monitoring is available and worth of spreading within certain realms, which would improve the protection, management, restoration and sustainable development for wetland resource.},
 year = {2021}
}

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TY  - JOUR
T1  - Research on Estimation of Wetland Area Based on Spacial Sampling Method-A Case Study of Ningxia Hui Autonomous Region in China
AU  - Ma Wei
AU  - Zhang Yangwu
AU  - Zhou Tianyuan
AU  - Jiang Yafang
AU  - Liu Zengli
Y1  - 2021/11/17
PY  - 2021
N1  - https://doi.org/10.11648/j.earth.20211006.15
DO  - 10.11648/j.earth.20211006.15
T2  - Earth Sciences
JF  - Earth Sciences
JO  - Earth Sciences
SP  - 292
EP  - 297
PB  - Science Publishing Group
SN  - 2328-5982
UR  - https://doi.org/10.11648/j.earth.20211006.15
AB  - Investigation and monitoring of wetland is an important and fundamental work. Wetland area estimation by systematic sampling would have higher precision than that get by traditional random sampling. In this paper, wetland areas of different types in Ningxia were estimated by spacial sampling method, based on remote sensing data from 2015 to 2016. Results showed that: 1) According to the second national wetland resource inventory database, wetland area in Ningxia was 20.72×104 hm2, which decreased gradually from north to south, and Wuzhong had relatively largest areas of lakes and marsh wetland. 2) Based with 210 of 4 km×4 km quadrat sampling grids, estimation of wetland area in Ningxia was 21.70×104 hm2, with estimation accuracy of 94.53% and sampling accuracy of 99.78%, which was reliability but the sampling accuracy would decline with the proportion decrease of sampling wetland area. 3) Based with 61 of 4 km×4 km quadrat sampling grids, wetland area in Wuzhong was estimated as 52320.67 hm2 with estimation accuracy of 98.58%, occurred in a net increase of 731.78 hm2 from 2013 to 2016. In conclusion, the spacial sampling method proposed in this research for wetland resource inventory and dynamic monitoring is available and worth of spreading within certain realms, which would improve the protection, management, restoration and sustainable development for wetland resource.
VL  - 10
IS  - 6
ER  -

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