Historical grassland desertification changes in the Horqin Sandy Land, Northern China (1985–2013)

Abstract Since rural reforms in the 1980s, both the state and local governments of China have devoted great efforts to combating desertification through a number of eco-environmental restoration campaigns, resulting in burgeoning contention at all levels of government and sparking public concern. Mo...

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Autores principales:	Jinya Li, Bin Xu, Xiuchun Yang, Zhihao Qin, Lina Zhao, Yunxiang Jin, Fen Zhao, Jian Guo
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/b355882970fb4c8fa127411edea43437
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spelling	oai:doaj.org-article:b355882970fb4c8fa127411edea434372021-12-02T15:05:27ZHistorical grassland desertification changes in the Horqin Sandy Land, Northern China (1985–2013)10.1038/s41598-017-03267-x2045-2322https://doaj.org/article/b355882970fb4c8fa127411edea434372017-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-03267-xhttps://doaj.org/toc/2045-2322Abstract Since rural reforms in the 1980s, both the state and local governments of China have devoted great efforts to combating desertification through a number of eco-environmental restoration campaigns, resulting in burgeoning contention at all levels of government and sparking public concern. Monitoring and accurately assessing the statuses and trends of grassland desertification are important for developing effective restoration strategies. The Horqin Sandy Land (HSL), a very typical desertified grassland (DG) with better hydrothermal conditions among sandy lands in north China, was recently selected (1985–2013) to assess the spatiotemporal dynamic performances of grassland desertification before and after implementing restoration projects. Landsat images (TM/ETM+/OLI), field investigations and expert review were integrated to form a classification scheme for the HSL. Then, spectral mixture analysis and the decision-tree method were used to extract bare-sand ratios and vegetation cover fraction dynamics. A favourable phenomenon of DG was seen to be reversed in an accelerated pace during 2001–2013, despite challenge from both climatic and anthropogenic factors. However, overexploitation of grassland (especially for farming) and ground water for irrigation has led to remarkable decreases in the ground water level in recent decades, which should be highly concerning regarding the formulation of restoration campaigns in the sandy land.Jinya LiBin XuXiuchun YangZhihao QinLina ZhaoYunxiang JinFen ZhaoJian GuoNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-12 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Jinya Li Bin Xu Xiuchun Yang Zhihao Qin Lina Zhao Yunxiang Jin Fen Zhao Jian Guo Historical grassland desertification changes in the Horqin Sandy Land, Northern China (1985–2013)
description	Abstract Since rural reforms in the 1980s, both the state and local governments of China have devoted great efforts to combating desertification through a number of eco-environmental restoration campaigns, resulting in burgeoning contention at all levels of government and sparking public concern. Monitoring and accurately assessing the statuses and trends of grassland desertification are important for developing effective restoration strategies. The Horqin Sandy Land (HSL), a very typical desertified grassland (DG) with better hydrothermal conditions among sandy lands in north China, was recently selected (1985–2013) to assess the spatiotemporal dynamic performances of grassland desertification before and after implementing restoration projects. Landsat images (TM/ETM+/OLI), field investigations and expert review were integrated to form a classification scheme for the HSL. Then, spectral mixture analysis and the decision-tree method were used to extract bare-sand ratios and vegetation cover fraction dynamics. A favourable phenomenon of DG was seen to be reversed in an accelerated pace during 2001–2013, despite challenge from both climatic and anthropogenic factors. However, overexploitation of grassland (especially for farming) and ground water for irrigation has led to remarkable decreases in the ground water level in recent decades, which should be highly concerning regarding the formulation of restoration campaigns in the sandy land.
format	article
author	Jinya Li Bin Xu Xiuchun Yang Zhihao Qin Lina Zhao Yunxiang Jin Fen Zhao Jian Guo
author_facet	Jinya Li Bin Xu Xiuchun Yang Zhihao Qin Lina Zhao Yunxiang Jin Fen Zhao Jian Guo
author_sort	Jinya Li
title	Historical grassland desertification changes in the Horqin Sandy Land, Northern China (1985–2013)
title_short	Historical grassland desertification changes in the Horqin Sandy Land, Northern China (1985–2013)
title_full	Historical grassland desertification changes in the Horqin Sandy Land, Northern China (1985–2013)
title_fullStr	Historical grassland desertification changes in the Horqin Sandy Land, Northern China (1985–2013)
title_full_unstemmed	Historical grassland desertification changes in the Horqin Sandy Land, Northern China (1985–2013)
title_sort	historical grassland desertification changes in the horqin sandy land, northern china (1985–2013)
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/b355882970fb4c8fa127411edea43437
work_keys_str_mv	AT jinyali historicalgrasslanddesertificationchangesinthehorqinsandylandnorthernchina19852013 AT binxu historicalgrasslanddesertificationchangesinthehorqinsandylandnorthernchina19852013 AT xiuchunyang historicalgrasslanddesertificationchangesinthehorqinsandylandnorthernchina19852013 AT zhihaoqin historicalgrasslanddesertificationchangesinthehorqinsandylandnorthernchina19852013 AT linazhao historicalgrasslanddesertificationchangesinthehorqinsandylandnorthernchina19852013 AT yunxiangjin historicalgrasslanddesertificationchangesinthehorqinsandylandnorthernchina19852013 AT fenzhao historicalgrasslanddesertificationchangesinthehorqinsandylandnorthernchina19852013 AT jianguo historicalgrasslanddesertificationchangesinthehorqinsandylandnorthernchina19852013
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Historical grassland desertification changes in the Horqin Sandy Land, Northern China (1985–2013)

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