Population Structure Characteristics and Survival Status of Natural Platycladus Orientalis in Loess Hilly Region
[Objective] Population structure characteristics and survival status of natural Platycladus orientalis in the loess hilly region were determined in order to provide a scientific basis for high-quality and sustainable development of forest grassland in this area. [Methods] Characteristics were quanti...
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Science Press
2023-12-01
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| Series: | Shuitu baochi tongbao |
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| Online Access: | http://stbctb.alljournal.com.cn/stbctben/article/abstract/20230604 |
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| author | Sun Ting Li Gangtie Ma Yunxia Song Jiajia Guo Jingjie Gu Zhonghou Liu Kun Li Zhilong Li Min |
| author_facet | Sun Ting Li Gangtie Ma Yunxia Song Jiajia Guo Jingjie Gu Zhonghou Liu Kun Li Zhilong Li Min |
| author_sort | Sun Ting |
| collection | DOAJ |
| description | [Objective] Population structure characteristics and survival status of natural Platycladus orientalis in the loess hilly region were determined in order to provide a scientific basis for high-quality and sustainable development of forest grassland in this area. [Methods] Characteristics were quantitatively analyzed by using a dynamic change index based on a static life table combined with spectral analysis on the time scale and time series simulation prediction to carry out a comprehensive survival analysis of this cypress species. [Results] ① The height, crown width, and diameter structure of the P. orientalis population indicated that young trees were abundant. ② The survival curve of the P. orientalis population was close to Deevey-Ⅱ type, and the population was sensitive to external interference. ③ Population dynamics were characterized by strong viability in the early stage, stable growth in the middle stage, and decline in viability in the later stage. Time series simulation and prediction analysis showed that the population of P. orientalis showed different degrees of increasing trend and strong growth recovery ability. [Conclusion] The natural population structure of P. orientalis in the loess hilly region was stable and growing, and the survival curve was close to that of Deevey-Ⅱ type. |
| format | Article |
| id | doaj-art-1e4a8119e3b04e459ebd25fea03f7f8b |
| institution | OA Journals |
| issn | 1000-288X |
| language | zho |
| publishDate | 2023-12-01 |
| publisher | Science Press |
| record_format | Article |
| series | Shuitu baochi tongbao |
| spelling | doaj-art-1e4a8119e3b04e459ebd25fea03f7f8b2025-08-20T02:14:50ZzhoScience PressShuitu baochi tongbao1000-288X2023-12-01436253010.13961/j.cnki.stbctb.2023.06.0041000-288X(2023)06-0025-06Population Structure Characteristics and Survival Status of Natural Platycladus Orientalis in Loess Hilly RegionSun Ting0Li Gangtie1Ma Yunxia2Song Jiajia3Guo Jingjie4Gu Zhonghou5Liu Kun6Li Zhilong7Li Min8College of Desert Management, Inner Mongolia Agricultural University, Hohhot, Inner Mongolia 010018, ChinaCollege of Desert Management, Inner Mongolia Agricultural University, Hohhot, Inner Mongolia 010018, ChinaCollege of Desert Management, Inner Mongolia Agricultural University, Hohhot, Inner Mongolia 010018, ChinaOrdos City Afforestation Farm, Ordos, Inner Mongolia 014399, ChinaOrdos City Afforestation Farm, Ordos, Inner Mongolia 014399, ChinaOrdos Forestry and Grassland Development Center, Ordos, Inner Mongolia 017299, ChinaOrdos Forestry and Grassland Development Center, Ordos, Inner Mongolia 017299, ChinaOrdos Forestry and Grassland Survey Center, Ordos, Inner Mongolia 014399, ChinaIjin Holo Banner Agricultural and Livestock Product Quality and Safety Center, Ordos, Inner Mongolia 017200, China[Objective] Population structure characteristics and survival status of natural Platycladus orientalis in the loess hilly region were determined in order to provide a scientific basis for high-quality and sustainable development of forest grassland in this area. [Methods] Characteristics were quantitatively analyzed by using a dynamic change index based on a static life table combined with spectral analysis on the time scale and time series simulation prediction to carry out a comprehensive survival analysis of this cypress species. [Results] ① The height, crown width, and diameter structure of the P. orientalis population indicated that young trees were abundant. ② The survival curve of the P. orientalis population was close to Deevey-Ⅱ type, and the population was sensitive to external interference. ③ Population dynamics were characterized by strong viability in the early stage, stable growth in the middle stage, and decline in viability in the later stage. Time series simulation and prediction analysis showed that the population of P. orientalis showed different degrees of increasing trend and strong growth recovery ability. [Conclusion] The natural population structure of P. orientalis in the loess hilly region was stable and growing, and the survival curve was close to that of Deevey-Ⅱ type.http://stbctb.alljournal.com.cn/stbctben/article/abstract/20230604platycladus orientalispopulation structurestatic life tablequantified dynamic analysissurvival analysisloess hilly region |
| spellingShingle | Sun Ting Li Gangtie Ma Yunxia Song Jiajia Guo Jingjie Gu Zhonghou Liu Kun Li Zhilong Li Min Population Structure Characteristics and Survival Status of Natural Platycladus Orientalis in Loess Hilly Region Shuitu baochi tongbao platycladus orientalis population structure static life table quantified dynamic analysis survival analysis loess hilly region |
| title | Population Structure Characteristics and Survival Status of Natural Platycladus Orientalis in Loess Hilly Region |
| title_full | Population Structure Characteristics and Survival Status of Natural Platycladus Orientalis in Loess Hilly Region |
| title_fullStr | Population Structure Characteristics and Survival Status of Natural Platycladus Orientalis in Loess Hilly Region |
| title_full_unstemmed | Population Structure Characteristics and Survival Status of Natural Platycladus Orientalis in Loess Hilly Region |
| title_short | Population Structure Characteristics and Survival Status of Natural Platycladus Orientalis in Loess Hilly Region |
| title_sort | population structure characteristics and survival status of natural platycladus orientalis in loess hilly region |
| topic | platycladus orientalis population structure static life table quantified dynamic analysis survival analysis loess hilly region |
| url | http://stbctb.alljournal.com.cn/stbctben/article/abstract/20230604 |
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