首页 > 分享 > 典型喀斯特区不同植被恢复方式苔藓功能性状及其对土壤因子的响应

典型喀斯特区不同植被恢复方式苔藓功能性状及其对土壤因子的响应

花匠小妙招
2024-12-23 04:22

作者:

肖露梅

中国科学院亚热带农业生态研究所亚热带农业生态过程重点实验室, 长沙 410125;中国科学院环江喀斯特生态系统观测研究站, 环江 547100;中国科学院大学, 北京 100049
在知网中查找
在百度中查找
在本站中查找

张伟

中国科学院亚热带农业生态研究所亚热带农业生态过程重点实验室, 长沙 410125;中国科学院环江喀斯特生态系统观测研究站, 环江 547100
在知网中查找
在百度中查找
在本站中查找

王彩艳胡培雷

胡培雷

陈元凯王克林

王克林

基金项目:

国家自然科学基金联合基金（U20A2011）；国家自然科学基金重点项目（41930652）；国家自然科学基金（32001231）

Functional traits of bryophytes and their response and adaptation to soil factors in different vegetation restoration methods in a typical karst area

Author:

XIAO Lumei

Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China;Huanjiang Observation and Research Station for Karst Eco-systems, Huanjiang 547100, China;University of Chinese Academy of Science, Beijing 100049, China
在知网中查找
在百度中查找
在本站中查找

ZHANG Wei

Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China;Huanjiang Observation and Research Station for Karst Eco-systems, Huanjiang 547100, China
在知网中查找
在百度中查找
在本站中查找

WANG Caiyan HU Peilei

HU Peilei

Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China;Huanjiang Observation and Research Station for Karst Eco-systems, Huanjiang 547100, China
在知网中查找
在百度中查找
在本站中查找

CHEN Yuankai

Agriculture and Rural Bureau of Renshou County, Sichuan Province, Meishan 620500, China
在知网中查找
在百度中查找
在本站中查找

WANG Kelin

Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China;Huanjiang Observation and Research Station for Karst Eco-systems, Huanjiang 547100, China
在知网中查找
在百度中查找
在本站中查找

Fund Project:

Joint Funds of the National Natural Science Foundation of China (U20A2011), Key Program of National Natural Science Foundation of China (41930652), National Natural Science Foundation of China (32001231)

摘要 | | 访问统计 | 参考文献 | || 文章评论

摘要:

苔藓功能性状反映了苔藓对生长环境的响应与适应，对其所在土壤表层的功能特性具有重要指示意义。但喀斯特地区植被恢复初期苔藓功能性状与土壤因子关系还缺乏深入认识。以典型喀斯特峰丛洼地人工林、牧草和人工林+牧草3种植被恢复方式下苔藓为研究对象，分析了苔藓功能性状及其与土壤因子的关系。结果表明：（1）苔藓单位面积冠层质量（CMA）、冠层密度（CD）、生物量和饱和吸水量在牧草地有最大值。苔藓冠层高度在牧草地显著低于人工林和人工林+牧草，且牧草地苔藓营养元素含量较低。（2）人工林和人工林+牧草表层土壤（0-2 cm）养分含量和土壤含水量（SWC）较高，牧草地表层土壤养分含量和SWC较低。（3）冗余分析表明，苔藓营养性状（营养元素含量及化学计量比）与土壤因子主要呈正相关关系，而CMA、CD及生物量关联指标与土壤因子主要呈负相关关系，土壤交换性镁和SWC是影响苔藓功能性状的主要土壤因子。研究结果表明，苔藓通过不同的性状组合适应不同植被类型生境，其中牧草地更适宜苔藓拓殖和生长，可考虑将苔藓应用于牧草地对喀斯特退化生态系统进行修复。

Abstract:

Functional traits of bryophytes reflect the response and adaption of bryophytes to the habitat, which is important to indicate the functional characteristics of the surface soil. However, the relationship between bryophyte functional traits and soil factors is not well understood at the early stage of vegetation restoration in karst areas. Thus, we studied bryophyte functional traits of three vegetation restoration methods (artificial forest[AF], forage grassland[FG] and a combination of artificial forest and forage grassland[FF]) and their relationships with soil factors in a typical karst depression. The results showed that:(1) according to principal component analysis, the first principal component mainly showed the nutritional traits of bryophytes, and the second principal component mainly showed the canopy traits and biomass of bryophytes. And the first axis in FF was significantly different from that in AF, and the second axis in FG was significantly different from that in AF and FF. The highest canopy mass per area (CMA), canopy density (CD), bryophyte biomass and saturated water adsorption content were all observed in FG. But the canopy heights of bryophytes in FG were significantly lower than AF and FF, and the nutrient concentrations of bryophytes in FG were lower than those in AF and FF. (2) Soil nutrients (e.g., soil organic carbon, total nitrogen, available potassium, exchangeable calcium, exchangeable magnesium, ammonium, nitrate, and total inorganic nitrogen) and soil water content (SWC) in AF and FF were higher in surface soil (0-2 cm), while soil nutrients and SWC in surface soil were lower in FG. (3) According to the redundancy analysis, the nutritional traits (e.g., nutrient concentrations and stoichiometric ratios) of bryophytes were mainly positively correlated with soil factors, while CMA, CD, bryophyte biomass and related indicators were mainly negatively correlated with soil factors. And the exchangeable magnesium and SWC were the main soil factors affecting functional traits of bryophytes. The results showed that bryophytes could adapt to the habitat with different combinations of functional traits under different vegetation types. And FG was more suitable for bryophytes colonization and growth, and bryophytes could be applied with FG for the restoration of degraded karst ecosystems.

引用本文

肖露梅,张伟,王彩艳,胡培雷,陈元凯,王克林.典型喀斯特区不同植被恢复方式苔藓功能性状及其对土壤因子的响应.生态学报,2022,42(23):9769~9779

复制

分享文章指标点击次数:348 下载次数: 1167 HTML阅读次数: 449 引用次数: 0