Ze Liu, Jun Li, Song-Lin Shi, Rui Yang, Wen-Wen Luo, Yi-Lin Ma, Xiao-Juan Bie, Guo-Yan Wang
{"title":"[中国四川亚丁自然保护区不同林缘树种径向生长对气候变化的响应]。","authors":"Ze Liu, Jun Li, Song-Lin Shi, Rui Yang, Wen-Wen Luo, Yi-Lin Ma, Xiao-Juan Bie, Guo-Yan Wang","doi":"10.13287/j.1001-9332.202405.001","DOIUrl":null,"url":null,"abstract":"<p><p>The radial growth of trees in alpine timberline is particularly sensitive to climate change. We sampled and disposed tree-ring cores of three coniferous tree species including <i>Juniperus saltuaria</i>, <i>Abies forrestii</i>, and <i>Larix potaninii</i> at alpine timberline in Yading Nature Reserve. The standard tree-ring chronology was used to explore the response of radial growth of different timberline species to climate change. The results showed that radial growth of <i>L. potaninii</i> increased after 2000, while that of <i>A. forrestii</i> declined after 2002, and <i>J. saltuaria</i> showed a significant decreasing growth trend in the past 10 years. Such results indicated divergent growth responses to climate factors among the three tree species at alpine timberline. The radial growth of <i>J. saltuaria</i> was sensitive to temperature, and was positively correlated with the minimum temperature from previous October to current August, the mean tempera-ture from previous November to current April and from current July to October, but was negatively associated with the relative humidity from current July to October. The radial growth of <i>A. forrestii</i> showed negative correlation with mean temperature and the maximum temperature from May to June in the current year, while it exhibited positive association with the relative humidity and the Palmer drought severity index from May to June in the current year. <i>L. potaninii</i> radial growth was positively associated with mean temperature and the maximum temperature of November-December in the previous year, the maximum temperature of current March and mean temperature of current August. The temporal stability of climate-growth relationship varied among different timberline species. The positive correlation between radial growth of <i>A. forrestii</i> and <i>J. saltuaria</i> and temperature gradually decreased, while the posi-tive relationship of <i>L. potaninii</i> radial growth and temperature gradually increased. Under the background of climate warming, rapid rise in surface air temperatures may promote the radial growth of <i>L. potaninii</i>, while inhibit that of <i>J. saltuaria</i> and <i>A. forrestii</i>, which may change the position of regional timberline.</p>","PeriodicalId":35942,"journal":{"name":"应用生态学报","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"[Response of radial growth of different timberline species to climate change in Yading Nature Reserve, Sichuan, China].\",\"authors\":\"Ze Liu, Jun Li, Song-Lin Shi, Rui Yang, Wen-Wen Luo, Yi-Lin Ma, Xiao-Juan Bie, Guo-Yan Wang\",\"doi\":\"10.13287/j.1001-9332.202405.001\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>The radial growth of trees in alpine timberline is particularly sensitive to climate change. We sampled and disposed tree-ring cores of three coniferous tree species including <i>Juniperus saltuaria</i>, <i>Abies forrestii</i>, and <i>Larix potaninii</i> at alpine timberline in Yading Nature Reserve. The standard tree-ring chronology was used to explore the response of radial growth of different timberline species to climate change. The results showed that radial growth of <i>L. potaninii</i> increased after 2000, while that of <i>A. forrestii</i> declined after 2002, and <i>J. saltuaria</i> showed a significant decreasing growth trend in the past 10 years. Such results indicated divergent growth responses to climate factors among the three tree species at alpine timberline. The radial growth of <i>J. saltuaria</i> was sensitive to temperature, and was positively correlated with the minimum temperature from previous October to current August, the mean tempera-ture from previous November to current April and from current July to October, but was negatively associated with the relative humidity from current July to October. The radial growth of <i>A. forrestii</i> showed negative correlation with mean temperature and the maximum temperature from May to June in the current year, while it exhibited positive association with the relative humidity and the Palmer drought severity index from May to June in the current year. <i>L. potaninii</i> radial growth was positively associated with mean temperature and the maximum temperature of November-December in the previous year, the maximum temperature of current March and mean temperature of current August. The temporal stability of climate-growth relationship varied among different timberline species. The positive correlation between radial growth of <i>A. forrestii</i> and <i>J. saltuaria</i> and temperature gradually decreased, while the posi-tive relationship of <i>L. potaninii</i> radial growth and temperature gradually increased. Under the background of climate warming, rapid rise in surface air temperatures may promote the radial growth of <i>L. potaninii</i>, while inhibit that of <i>J. saltuaria</i> and <i>A. forrestii</i>, which may change the position of regional timberline.</p>\",\"PeriodicalId\":35942,\"journal\":{\"name\":\"应用生态学报\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-05-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"应用生态学报\",\"FirstCategoryId\":\"1087\",\"ListUrlMain\":\"https://doi.org/10.13287/j.1001-9332.202405.001\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"Environmental Science\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"应用生态学报","FirstCategoryId":"1087","ListUrlMain":"https://doi.org/10.13287/j.1001-9332.202405.001","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"Environmental Science","Score":null,"Total":0}
引用次数: 0
摘要
高寒林线树木的径向生长对气候变化特别敏感。我们对亚丁自然保护区高寒林线上的三种针叶树种,包括桧柏、柞树和梭梭,进行了取样和树芯处理。研究采用标准树环年代学方法探讨了不同林线树种的径向生长对气候变化的响应。结果表明,2000年后L. potaninii的径向生长量增加,而A. forrestii的径向生长量在2002年后下降,J. saltuaria在过去10年中的径向生长量呈显著下降趋势。这些结果表明,在高山林线上,三种树木的生长对气候因素的反应各不相同。盐肤木的径向生长对温度很敏感,与前一年10月至当年8月的最低气温、前一年11月至当年4月以及当年7月至10月的平均气温呈正相关,但与当年7月至10月的相对湿度呈负相关。A.forrestii的径向生长与当年5月至6月的平均气温和最高气温呈负相关,而与当年5月至6月的相对湿度和帕尔默干旱严重程度指数呈正相关。L.potaninii的径向生长与前一年11-12月的平均气温和最高气温、当年3月的最高气温和当年8月的平均气温呈正相关。气候与生长关系的时间稳定性在不同林缘树种之间存在差异。A.forrestii和J.saltuaria径向生长与温度的正相关关系逐渐减弱,而L. potaninii径向生长与温度的正相关关系逐渐增强。在气候变暖的背景下,地表气温的快速上升可能会促进 L. potaninii 的径向生长,而抑制 J. saltuaria 和 A. forrestii 的径向生长,从而改变区域林线的位置。
[Response of radial growth of different timberline species to climate change in Yading Nature Reserve, Sichuan, China].
The radial growth of trees in alpine timberline is particularly sensitive to climate change. We sampled and disposed tree-ring cores of three coniferous tree species including Juniperus saltuaria, Abies forrestii, and Larix potaninii at alpine timberline in Yading Nature Reserve. The standard tree-ring chronology was used to explore the response of radial growth of different timberline species to climate change. The results showed that radial growth of L. potaninii increased after 2000, while that of A. forrestii declined after 2002, and J. saltuaria showed a significant decreasing growth trend in the past 10 years. Such results indicated divergent growth responses to climate factors among the three tree species at alpine timberline. The radial growth of J. saltuaria was sensitive to temperature, and was positively correlated with the minimum temperature from previous October to current August, the mean tempera-ture from previous November to current April and from current July to October, but was negatively associated with the relative humidity from current July to October. The radial growth of A. forrestii showed negative correlation with mean temperature and the maximum temperature from May to June in the current year, while it exhibited positive association with the relative humidity and the Palmer drought severity index from May to June in the current year. L. potaninii radial growth was positively associated with mean temperature and the maximum temperature of November-December in the previous year, the maximum temperature of current March and mean temperature of current August. The temporal stability of climate-growth relationship varied among different timberline species. The positive correlation between radial growth of A. forrestii and J. saltuaria and temperature gradually decreased, while the posi-tive relationship of L. potaninii radial growth and temperature gradually increased. Under the background of climate warming, rapid rise in surface air temperatures may promote the radial growth of L. potaninii, while inhibit that of J. saltuaria and A. forrestii, which may change the position of regional timberline.