Effects of thinning and understory removal on the soil water-holding capacity in Pinus massoniana plantations

Abstract Forest management practices play an important role in regulating the soil water-holding capacity of plantation. However, most studies focus on soil water dynamics present during large-scale forest loss and afforestation events, while little is known about how soil water under different fore...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Ting Wang, Qing Xu, Deqiang Gao, Beibei Zhang, Haijun Zuo, Jing Jiang
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/db7d6746bb4d42ac91acf34289d45aeb
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:db7d6746bb4d42ac91acf34289d45aeb
record_format	dspace
spelling	oai:doaj.org-article:db7d6746bb4d42ac91acf34289d45aeb2021-12-02T18:02:49ZEffects of thinning and understory removal on the soil water-holding capacity in Pinus massoniana plantations10.1038/s41598-021-92423-52045-2322https://doaj.org/article/db7d6746bb4d42ac91acf34289d45aeb2021-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-92423-5https://doaj.org/toc/2045-2322Abstract Forest management practices play an important role in regulating the soil water-holding capacity of plantation. However, most studies focus on soil water dynamics present during large-scale forest loss and afforestation events, while little is known about how soil water under different forest management practices responds to rainfall events and which factors mainly regulate soil water-holding capacity. In this study, a stable hydrogen isotope was used to explore the contribution of three natural rainfall events (8.9, 13.3 and 67.7 mm) to soil water (CRSW) in a Pinus massoniana plantation under four forest management practices (no thinning (NTN), understory removal (USR), light-intensity thinning (LIT) and heavy-intensity thinning (HIT)) in the Three Gorges Reservoir Area of the Yangtze River Basin in China. Furthermore, a structural equation model was employed to determine the effects of vegetation biomass and soil properties on the CRSW. The results showed that plantation soil under different forest management practices exhibited different water-holding capacities. Following light (8.9 mm) and moderate (13.3 mm) rainfall events, the CRSW in the HIT stand was slightly higher than that in the other stands. Following heavy (66.7 mm) rainfall event, the CRSW of most layers in USR stand was not different from the other three stands, while the CRSW in the LIT and NTN stands was significantly higher than that in the HIT stand in the 0–100 cm soil layers, suggesting that soil in the LIT and NTN stands had a greater water-holding capacity than that in the HIT stand. In addition, soil properties were the main factors directly affecting the CRSW, explaining 60% and 37% of the variation in the CRSW on the first and seventh days after heavy rainfall, respectively. Overall, compared to the HIT stand, the LIT and NTN stands showed greater capacity in retaining rainwater. Therefore, under expected global changes with frequent occurrences of extreme precipitation events, methods involving light-intensity and no thinning should be employed to build up soil and water conservation functions, which will be critical for keeping water-holding capacity and moderating floods.Ting WangQing XuDeqiang GaoBeibei ZhangHaijun ZuoJing JiangNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-13 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Ting Wang Qing Xu Deqiang Gao Beibei Zhang Haijun Zuo Jing Jiang Effects of thinning and understory removal on the soil water-holding capacity in Pinus massoniana plantations
description	Abstract Forest management practices play an important role in regulating the soil water-holding capacity of plantation. However, most studies focus on soil water dynamics present during large-scale forest loss and afforestation events, while little is known about how soil water under different forest management practices responds to rainfall events and which factors mainly regulate soil water-holding capacity. In this study, a stable hydrogen isotope was used to explore the contribution of three natural rainfall events (8.9, 13.3 and 67.7 mm) to soil water (CRSW) in a Pinus massoniana plantation under four forest management practices (no thinning (NTN), understory removal (USR), light-intensity thinning (LIT) and heavy-intensity thinning (HIT)) in the Three Gorges Reservoir Area of the Yangtze River Basin in China. Furthermore, a structural equation model was employed to determine the effects of vegetation biomass and soil properties on the CRSW. The results showed that plantation soil under different forest management practices exhibited different water-holding capacities. Following light (8.9 mm) and moderate (13.3 mm) rainfall events, the CRSW in the HIT stand was slightly higher than that in the other stands. Following heavy (66.7 mm) rainfall event, the CRSW of most layers in USR stand was not different from the other three stands, while the CRSW in the LIT and NTN stands was significantly higher than that in the HIT stand in the 0–100 cm soil layers, suggesting that soil in the LIT and NTN stands had a greater water-holding capacity than that in the HIT stand. In addition, soil properties were the main factors directly affecting the CRSW, explaining 60% and 37% of the variation in the CRSW on the first and seventh days after heavy rainfall, respectively. Overall, compared to the HIT stand, the LIT and NTN stands showed greater capacity in retaining rainwater. Therefore, under expected global changes with frequent occurrences of extreme precipitation events, methods involving light-intensity and no thinning should be employed to build up soil and water conservation functions, which will be critical for keeping water-holding capacity and moderating floods.
format	article
author	Ting Wang Qing Xu Deqiang Gao Beibei Zhang Haijun Zuo Jing Jiang
author_facet	Ting Wang Qing Xu Deqiang Gao Beibei Zhang Haijun Zuo Jing Jiang
author_sort	Ting Wang
title	Effects of thinning and understory removal on the soil water-holding capacity in Pinus massoniana plantations
title_short	Effects of thinning and understory removal on the soil water-holding capacity in Pinus massoniana plantations
title_full	Effects of thinning and understory removal on the soil water-holding capacity in Pinus massoniana plantations
title_fullStr	Effects of thinning and understory removal on the soil water-holding capacity in Pinus massoniana plantations
title_full_unstemmed	Effects of thinning and understory removal on the soil water-holding capacity in Pinus massoniana plantations
title_sort	effects of thinning and understory removal on the soil water-holding capacity in pinus massoniana plantations
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/db7d6746bb4d42ac91acf34289d45aeb
work_keys_str_mv	AT tingwang effectsofthinningandunderstoryremovalonthesoilwaterholdingcapacityinpinusmassonianaplantations AT qingxu effectsofthinningandunderstoryremovalonthesoilwaterholdingcapacityinpinusmassonianaplantations AT deqianggao effectsofthinningandunderstoryremovalonthesoilwaterholdingcapacityinpinusmassonianaplantations AT beibeizhang effectsofthinningandunderstoryremovalonthesoilwaterholdingcapacityinpinusmassonianaplantations AT haijunzuo effectsofthinningandunderstoryremovalonthesoilwaterholdingcapacityinpinusmassonianaplantations AT jingjiang effectsofthinningandunderstoryremovalonthesoilwaterholdingcapacityinpinusmassonianaplantations
_version_	1718378897894014976

Effects of thinning and understory removal on the soil water-holding capacity in Pinus massoniana plantations

Ejemplares similares