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Dong R, Hua LM, Hua R, Ye GH, Bao D, Cai XC, Cai B, Zhao XC, Chu B, Tang ZS. Prediction of the potentially suitable areas of Ligularia virgaurea and Ligularia sagitta on the Qinghai-Tibet Plateau based on future climate change using the MaxEnt model. FRONTIERS IN PLANT SCIENCE 2023; 14:1193690. [PMID: 37546265 PMCID: PMC10400714 DOI: 10.3389/fpls.2023.1193690] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Accepted: 06/30/2023] [Indexed: 08/08/2023]
Abstract
Ligularia virgaurea and Ligularia sagitta are two species of poisonous plants with strong invasiveness in natural grasslands in China that have caused considerable harm to animal husbandry and the ecological environment. However, little is known about their suitable habitats and the key environmental factors affecting their distribution. Although some studies have reported the distributions of poisonous plants on the Qinghai-Tibet Plateau (QTP) and predicted their potential distributions at local scales in some regions under climate change, there have been few studies on the widespread distributions of L. virgaurea and L. sagitta. In this study, we recorded 276 and 118 occurrence points of L. virgaurea and L. sagitta on the QTP using GPS, and then used the MaxEnt model to predict the distribution of suitable habitats. Results showed that (1) under current climate conditions, L. virgaurea and L. sagitta are mainly distributed in southern Gansu, eastern Qinghai, northwestern Sichuan, eastern Tibet, and southwestern Yunnan, accounting for approximately 34.9% and 39.8% of the total area of the QTP, respectively; (2) the main environmental variables affecting the distribution of suitable habitats for L. virgaurea and L. sagitta are the Human Footprint Index (52.8%, 42.2%), elevation (11%, 4.4%), soil total nitrogen (18.9%, 4.2%), and precipitation seasonality (5.1%, 7.3%); and (3) in the future, in the 2050s and 2070s, the area of habitat of intermediate suitability for L. virgaurea will spread considerably in northwest Sichuan, while that of high suitability for L. sagitta will spread to eastern Tibet and western Sichuan.
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Kaur A, Kaur S, Singh HP, Datta A, Chauhan BS, Ullah H, Kohli RK, Batish DR. Ecology, Biology, Environmental Impacts, and Management of an Agro-Environmental Weed Ageratum conyzoides. PLANTS (BASEL, SWITZERLAND) 2023; 12:2329. [PMID: 37375954 DOI: 10.3390/plants12122329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 06/03/2023] [Accepted: 06/09/2023] [Indexed: 06/29/2023]
Abstract
Ageratum conyzoides L. (Billy goat weed; Asteraceae) is an annual herbaceous plant of American origin with a pantropical distribution. The plant has unique biological attributes and a raft of miscellaneous chemical compounds that render it a pharmacologically important herb. Despite its high medicinal value, the constant spread of the weed is noticeable and alarming. In many countries, the weed has severely invaded the natural, urban, and agroecosystems, thus presenting management challenges to natural resource professionals and farmers. Its interference with agricultural crops, grassland forbs, forest ground flora, and its ability to replace native plant species are of serious concern. Therefore, it is pertinent to monitor its continuous spread, its entry into new geographic regions, the extent of its impact, and the associated evolutionary changes. While management strategies should be improvised to control its spread and reduce its adverse impacts, the possible utilization of this noxious weed for pharmacological and agronomic purposes should also be explored. The objective of this review is to provide a detailed account of the global distribution, biological activities, ecological and environmental impacts, and strategies for the management of the agro-environmental weed A. conyzoides.
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Affiliation(s)
- Amarpreet Kaur
- Department of Botany, Panjab University, Chandigarh 160014, India
| | - Shalinder Kaur
- Department of Botany, Panjab University, Chandigarh 160014, India
| | - Harminder Pal Singh
- Department of Environment Studies, Panjab University, Chandigarh 160014, India
| | - Avishek Datta
- Department of Food, Agriculture and Bioresources, School of Environment and Resource Development, Asian Institute of Technology, Klong Luang, Pathumthani 12120, Thailand
| | | | - Hayat Ullah
- Department of Food, Agriculture and Bioresources, School of Environment and Resource Development, Asian Institute of Technology, Klong Luang, Pathumthani 12120, Thailand
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He D, Jin B, Zhao X, Cheng H, Chen C, Wang H, Zhang J, Zhang Y, Yang Q, Liu K, Han M, Li Z, Peng J. Karst grassland forage quality and its determinants in Guizhou Province of Southwest China. PeerJ 2023; 11:e15323. [PMID: 37214107 PMCID: PMC10198152 DOI: 10.7717/peerj.15323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Accepted: 04/10/2023] [Indexed: 05/24/2023] Open
Abstract
Forage quality is a key property of grassland ecosystems. In this study, grassland forage qualities were measured at 373 sampling sites throughout Guizhou Province in the karst mountain region of Southwest China, and the factors affecting it were explored. The forage quality level of most plant species was categorized into four levels: (1) preferred forage species; (2) desirable forage species; (3) consumed but undesirable forage species; and (4) non-consumable or toxic forage species. High temperature and precipitation appeared to facilitate the growth of preferred forage species, but limited the growth of other plants. Increasing soil pH had a positive impact on the number and biomass of preferred forage plants, but a negative influence on other plants, especially non-consumable or toxic plants. Both GDP and population density had a positive correlation with the number and biomass of preferred forage species, while such correlations for other levels of forage species tended to be negative. Grazing could lead to a decrease in the preferred forage species. Therefore, it is suggested that by focusing on soil improvement in grassland and maintaining an appropriate grazing intensity, global warming and rapid economic growth in Guizhou Province will likely contribute to increase the forage quality of karst grasslands in Southwest China.
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Affiliation(s)
- Dengming He
- College of Animal Science, Guizhou University, Guiyang, Guizhou, China
| | - Baocheng Jin
- College of Animal Science, Guizhou University, Guiyang, Guizhou, China
| | - Xuechun Zhao
- College of Animal Science, Guizhou University, Guiyang, Guizhou, China
| | - Hua Cheng
- School of Tourism, Henan Normal University, Xinxiang, Henan, China
| | - Chao Chen
- College of Animal Science, Guizhou University, Guiyang, Guizhou, China
| | - Huanhuan Wang
- College of Animal Science, Guizhou University, Guiyang, Guizhou, China
| | - Jinping Zhang
- College of Animal Science, Guizhou University, Guiyang, Guizhou, China
| | - Yaoyao Zhang
- College of Animal Science, Guizhou University, Guiyang, Guizhou, China
| | - Qin Yang
- College of Animal Science, Guizhou University, Guiyang, Guizhou, China
| | - Kun Liu
- College of Animal Science, Guizhou University, Guiyang, Guizhou, China
| | - Min Han
- Guizhou Institute of Natural Resources Survey and Planning, Guizhou Department of Natural Resources, Guiyang, Guizhou, China
| | - Zhongcai Li
- Guizhou Institute of Natural Resources Survey and Planning, Guizhou Department of Natural Resources, Guiyang, Guizhou, China
| | - Jing Peng
- Guizhou Institute of Natural Resources Survey and Planning, Guizhou Department of Natural Resources, Guiyang, Guizhou, China
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Spatial Distribution Pattern and Risk Assessment of Invasive Alien Plants on Southern Side of the Daba Mountain Area. DIVERSITY 2022. [DOI: 10.3390/d14121019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
The southern side of the Daba Mountain area is a hotspot of global biodiversity and an essential barrier promoting ecological security. However, knowledge about the distribution status and transmission pathways of invasive alien species (IAS) in this area is limited. We counted the IAS on the southern side of the Daba Mountain area through sample transects and analyzed the factors affecting their spatial distribution. We also assessed IAS risk using the analytic hierarchy process (AHP), which found 64 IAS belonging to 23 families and 53 genera. Around rivers and roads, the results showed a vertical two-way dispersal pattern. Human and environmental factors, such as a very dense transportation network, can affect the distribution pattern of IAS. AHP assessed 43 IAS (67.19%), primarily distributed in villages and towns, as being of high or medium risk. High- and medium-risk IAS should be the focus of invasion prevention and control, and priority should be given to controlling the spread of IAS around rivers and roads.
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