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Article

High Mortality and Low Net Change in Live Woody Biomass of Karst Evergreen and Deciduous Broad-Leaved Mixed Forest in Southwestern China

by 1,2, 1,2,3,*, 2,3, 4,5 and 4,5
1
College of Chemistry and Life Sciences, Zhejiang Normal University, Yingbin Avenue 688, Jinhua 321004, China
2
Puding Karst Ecosystem Research Station, Chinese Academy of Sciences, Shawan at Longga Village, Puding, Anshun 562100, China
3
State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Lincheng West Road 99, Guiyang 550081, China
4
School of Environment and Life Science, Guangxi Teachers Education University, Mingxiu East Road 175, Nanning 530001, China
5
Key Laboratory of Beibu Gulf Environment Change and Resources Utilization of the Ministry of Education, Guangxi Teachers Education University, Mingxiu East Road 175, Nanning 530001, China
*
Author to whom correspondence should be addressed.
Forests 2018, 9(5), 263; https://doi.org/10.3390/f9050263
Received: 27 March 2018 / Revised: 8 May 2018 / Accepted: 9 May 2018 / Published: 11 May 2018
(This article belongs to the Special Issue Disturbance, Succession, and Development of Forests)
Repeated observation based on large permanent monitoring plots is a key method for directly understanding forest regeneration dynamics. Karst forests grow slowly in adverse habitats and possess a special regeneration mode. However, no data can support these properties because no repeated observations have been performed. The mortality, recruitment, and net change in live woody biomass (NPPlw) of a karst evergreen and deciduous broad-leaved mixed forest in Central Guizhou Province, Southwestern China, were studied on the basis of a short-term continuous monitoring (3 years) of a 2 ha plot. The species richness of individuals with a diameter at breast height (DBH) ≥ 1 cm decreased from 66 to 58 during the study period. Eight species disappeared, and no new species appeared. The individual number declined from 16,821 to 15,003 because most species indicated more deaths than recruitments. Trees presented the lowest mortality rate, and shrubs presented the highest recruitment rate among the species. Individual death number decreased with the increase in DBH classes. The estimated aboveground NPPlw was 8.41 t ha−1 year−1. The survivors, recruitments, and deaths contributed 10.88, 0.11, and −2.58 t ha−1 year−1, respectively. Trees (8.37 t ha−1 year−1), rather than shrubs (0.04 t ha−1 year−1) and lianas (−0.004 t ha−1 year−1), were the major contributors. The karst forest presented higher mortality and lower NPPlw than nonkarst forests in subtropical China and in the world. View Full-Text
Keywords: regeneration dynamics; net change in live woody biomass; short-term continuous monitoring; karst forest; carbon cycling regeneration dynamics; net change in live woody biomass; short-term continuous monitoring; karst forest; carbon cycling
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MDPI and ACS Style

Liu, L.; Ni, J.; Zhong, Q.; Hu, G.; Zhang, Z. High Mortality and Low Net Change in Live Woody Biomass of Karst Evergreen and Deciduous Broad-Leaved Mixed Forest in Southwestern China. Forests 2018, 9, 263. https://doi.org/10.3390/f9050263

AMA Style

Liu L, Ni J, Zhong Q, Hu G, Zhang Z. High Mortality and Low Net Change in Live Woody Biomass of Karst Evergreen and Deciduous Broad-Leaved Mixed Forest in Southwestern China. Forests. 2018; 9(5):263. https://doi.org/10.3390/f9050263

Chicago/Turabian Style

Liu, Libin, Jian Ni, Qiaolian Zhong, Gang Hu, and Zhonghua Zhang. 2018. "High Mortality and Low Net Change in Live Woody Biomass of Karst Evergreen and Deciduous Broad-Leaved Mixed Forest in Southwestern China" Forests 9, no. 5: 263. https://doi.org/10.3390/f9050263

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