辽东山地水源涵养林典型植被凋落物C、N、P溶出特征及其影响因素

生态学杂志

辽东山地水源涵养林典型植被凋落物C、N、P溶出特征及其影响因素

程志辉^1,2,李法云^1,2*,李海燕³,张营²,李霞²,林力涛⁴,孙学凯⁴

（¹湖南农业大学资源环境学院，长沙 410128；²辽宁大学环境学院，沈阳 110036；³辽宁老秃顶子国家级自然保护区抚顺管理局，辽宁抚顺 113208；⁴中国科学院沈阳应用生态研究所大青沟沙地生态实验站，沈阳 110016）

出版日期:2019-04-10 发布日期:2019-04-10

Characteristics of carbon, nitrogen and phosphorus leaching from litters of typical vegetation types in eastern Liaoning mountain water conservation forests and affecting factors.

CHENG Zhi-hui^1,2, LI Fa-yun^1,2*, LI Hai-yan³, ZHANG Ying², LI Xia², LIN Li-tao⁴, SUN Xue-kai⁴

(¹Collage of Resources and Environment, Hunan Agricultural University, Changsha 410128, China; ²School of Environmental Science, Liaoning University, Shenyang 110036, China; ³Fushun Authority of Liaoning Laotudingzi National Nature Reserve, Fushun 113208, Liaoning, China; ⁴Daqinggou Ecological Station, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China).

Online:2019-04-10 Published:2019-04-10

摘要/Abstract

摘要： 为揭示水源涵养林不同植被类型凋落物养分溶出特征及其影响因素，本文选取辽东山地太子河上游典型水源涵养林——槭树林、蒙古栎林、落叶松林和红松林为研究对象，探究不同植被类型凋落物碳、氮、磷养分溶出特征及pH、温度和时间等因素的影响。结果表明：凋落物养分溶出占干物质总质量的0.24%～1.28%，且不同植被类型凋落物养分溶出比例和溶出量存在显著差异（P<0.05）；凋落物养分溶出总量槭树林>红松林>蒙古栎林>落叶松林，槭树林凋落物TP溶出量（47.71 mg·kg^-1）相对较高，而落叶松林凋落物NO₃^--N（14.95 mg·kg^-1）和TN（82.50 mg·kg^-1）溶出量最低；pH下降增加了各植被类型凋落物TN和TP的溶出量，温度升高增加了凋落物DOC、TN和TP的溶出量，且不同植被类型凋落物NH₄⁺-N和NO₃^--N溶出最佳温度存在差异；凋落物养分溶出趋于平稳所需时间为12～24 h，蒙古栎林凋落物NH₄⁺-N和NO₃^--N和TN溶出趋于平稳所需时间多于其他植被类型，研究结果为深入理解凋落物养分溶出特征提供了依据。

关键词: 内生真菌, 多样性, 群落结构, 南方红豆杉, ITS

Abstract: To understand the characteristics of nutrient leaching of litter and its affecting factors in the water conservation forests, we investigated the leaching of litter C, N and P of typical forests (Acer mono, Quercus mongolica, Larix olgensis, and Pinus koraiensis forest) in the upper reaches of Taizi River, eastern Liaoning Mountain area and the effects of solution pH, temperature, and leaching time on it. The results showed that the total leaching amount of total C, N, and P accounted for 0.24%-1.28% of the dry mass and there were significant differences (P<0.05) in the leaching rate and leaching amount from litter among different vegetations, with the order on the leaching amount of Acer mono>Pinus koraiensis>Quercus mongolica>Larix olgensis. The TP leaching (47.71 mg·kg^-1) was higher in Acer mono litter than other species. There was the lowest NO₃^--N (14.95 mg·kg^-1) and TN release (82.50 mg·kg^-1) in Larix olgensis litter among the four vegetations. The litter TN and TP release was increased with decreasing pH value and the DOC, TN and TP release from litter was increased with rising temperature. The optimal temperature for the litter NH₄⁺-N and NO₃^--N release differed among four vegetation types. The time when leaching reached stable was 12-24 h, whereas Quercus mongolica litter took a longer time on NH₄⁺-N, NO₃^--N and TN leaching than the others. Our results provided a basis for better understanding the characteristics of nutrient leaching from litter.

Key words: endophytic fungi, diversity, community structure, Taxus chinensis var. mairei, ITS.

程志辉,李法云,李海燕,张营,李霞,林力涛,孙学凯. 辽东山地水源涵养林典型植被凋落物C、N、P溶出特征及其影响因素[J]. 生态学杂志.

CHENG Zhi-hui, LI Fa-yun, LI Hai-yan, ZHANG Ying, LI Xia, LIN Li-tao, SUN Xue-kai. Characteristics of carbon, nitrogen and phosphorus leaching from litters of typical vegetation types in eastern Liaoning mountain water conservation forests and affecting factors.[J]. cje.

[1]	李小鹏, 卜元坤, 陈佳卉, 王永平, 周建云, 李卫忠. 桥山林区辽东栎次生林生态位及多样性特征与林分分布格局的关系 [J]. 生态学杂志, 2024, 43(2): 415-423.
[2]	黄文晶, 姜楠, 陈晓冬, 孙楠, 徐明岗, 陈振华, 张玉兰, 陈利军. 长期施用化肥对红壤磷形态、磷酸酶活性及phoD基因丰度和多样性的影响 [J]. 生态学杂志, 2024, 43(2): 487-493.
[3]	刘洁, 马艳龙. 黑土区不同纬度农田和人工林生境地表节肢动物群落分布特征 [J]. 生态学杂志, 2024, 43(2): 494-504.
[4]	唐思思, 游光年, 魏雪, 任晓, 陈燕, 王玉英, 吴鹏飞. 表栖跳虫和螨类群落对高寒草甸退化的响应 [J]. 生态学杂志, 2024, 43(1): 66-74.
[5]	迪拉拉·托留, 程继龙, 夏霖, 杨维康, 杨奇森. 新疆四种荒漠跳鼠肠道菌群多样性与功能的比较 [J]. 生态学杂志, 2024, 43(1): 234-243.
[6]	隋鹏祥, 廉宏利, 王峥宇, 姜英, 齐华, 罗洋, 郑金玉. 旋耕和秸秆还田方式对棕壤微生物群落特征的影响 [J]. 生态学杂志, 2023, 42(9): 2049-2060.
[7]	胡亚伟, 施政乐, 刘畅, 徐勤涛, 张建军. 晋西黄土区刺槐林密度对林下植物多样性及土壤理化性质的影响 [J]. 生态学杂志, 2023, 42(9): 2072-2080.
[8]	张靖泽, 杨波, 肖晶, 夏伟, 李秋华. 贵州南盘江和北盘江后生浮游动物群落结构及优势种生态位特征 [J]. 生态学杂志, 2023, 42(9): 2184-2192.
[9]	黄秋霞, 张喆, 马红艳. 昆明城市多景观维度下公园蝴蝶多样性特征 [J]. 生态学杂志, 2023, 42(9): 2193-2203.
[10]	林奕伶, 孙新, 刘冬, 戴冠华, 刘吉平, 武海涛. 哈泥泥炭沼泽典型土壤节肢动物群落结构的生境变异特征 [J]. 生态学杂志, 2023, 42(8): 1869-1879.
[11]	张富荣, 金亮, 叶勇. 厦门海沧湾红树林恢复区水体浮游植物群落组成与物种多样性的时空分布 [J]. 生态学杂志, 2023, 42(7): 1604-1609.
[12]	梁凤, 周立志. 环巢湖湿地公园鸟类多样性的空间变化 [J]. 生态学杂志, 2023, 42(7): 1687-1698.
[13]	李钰飞, 孙钦平, 李吉进, 许俊香, 郎乾乾, 赵祥, 刘本生. 利用gamma辐射结合交叉混合土壤构建土壤线虫多样性梯度 [J]. 生态学杂志, 2023, 42(7): 1705-1712.
[14]	钱怡顺, 熊忠平, 徐正会, 刘霞, 钱昱含, 房华, 祁彪, 郭宁妍, 陈超. 青藏高原西北坡及邻近地区蚂蚁物种多样性 [J]. 生态学杂志, 2023, 42(7): 1721-1730.
[15]	秦笠, 王宁, 陈佳敏, 高鸿图. 不同恢复方式铁杆蒿群落土壤有机质和团聚体特征 [J]. 生态学杂志, 2023, 42(6): 1348-1354.