Response of Humification of Robinia pseudoacacia and Pinus tabulaeformis Litter to Climate Temperature and Humidity Changes

doi:10.11733/j.issn.1007-0435.2021.08.017

Acta Agrestia Sinica ›› 2021, Vol. 29 ›› Issue (8): 1738-1747.DOI: 10.11733/j.issn.1007-0435.2021.08.017

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Response of Humification of Robinia pseudoacacia and Pinus tabulaeformis Litter to Climate Temperature and Humidity Changes

WU Xue-mei¹, YANG Xue-yan¹, LIN Yuan-yuan², DAI Yi¹, CAO Le-le², DONG Wen-xuan², LIU Zeng-wen^1,3

1. College of Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, China;
2. Institute of Soil and Water Conservation, Northwest A & F University, Yangling, Shaanxi Province 712100, China;
3. Key Laboratory of plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, Yangling, Shaanxi Province 712100, China

Received:2021-01-08 Revised:2021-03-10 Online:2021-08-15 Published:2021-09-06

刺槐和油松枯落叶腐殖质化对气候温湿变化的响应

吴雪梅¹, 杨雪岩¹, 林媛媛², 代亦¹, 曹乐乐², 董文萱², 刘增文^1,3

1. 西北农林科技大学资源环境学院, 陕西杨凌 712100;
2. 西北农林科技大学水土保持研究所, 陕西杨凌 712100;
3. 农业部西北植物营养与农业环境重点实验室, 陕西杨凌 712100

通讯作者: 刘增文,E-mail:zengwenliu2003@aliyun.com
作者简介:吴雪梅(1997-),女,汉族,四川达州人,硕士研究生,主要从事林草地生态研究工作,E-mail:1643952451@qq.com
基金资助:
陕西省自然科学基础研究计划重点项目（2016 JZ010）；西北农林科技大学大学生创新实验计划项目（2020）资助

Abstract

Abstract: In order to study the influence of climate temperature and humidity on humus of forest litter, the experiment was conducted to study the humic degree of Robinia pseudoacacia and Pinus tabulaeformis under different humidity and temperature conditions by indoor simulation decomposition experiment. The results showed that the humification degree of Robinia pseudoacacia under the condition of tidal temperature was 5.54% higher than that under the condition of dry and cold;however, the humification degree under humid and hot conditions was 56.27% lower than that under humid and warm conditions;For the litter of Pinus tabulaeformis, the humification degree under the condition of tidal temperature was 104.88% higher than that under the condition of dry and cold, while the humification degree under the condition of damp and hot was 2.22% lower than that under the condition of tidal temperature. Phosphatase and urease activities were favorable to improve the humification degree of Robinia pseudoacacia, while E4/E6 and phosphorus (P) were relatively unfavorable;Nitrogen (N) was relatively favorable to improve the humification degree of Pinus tabulaeformis, while available potassium (K) and phosphatase activity were relatively unfavorable. The humification of Robinia pseudoacacia and Pinus tabulaeformis litter has obvious response to climate temperature and humidity changes. The research results will provide a theoretical basis and reference value for soil fertility maintenance and vegetation management.

Key words: Robinia pseudoacacia, Pinus tabulaeformis, Forest litter, Soil humus, Soil enzyme activity

摘要： 为探讨气候温湿变化对枯落叶腐殖质化的影响，本研究采集刺槐（Robinia pseudoacacia）和油松（Pinus tabulaeformis）枯落叶，采用室内模拟分解试验研究不同湿度与温度条件下刺槐和油松枯落叶的腐殖化程度。结果表明：对于刺槐枯落叶，潮温条件下的腐殖质化程度比干冷条件下提高了5.54%，而湿热条件下的腐殖质化程度比潮温条件下降低了56.27%；对于油松枯落叶，潮温条件下的腐殖质化程度比干冷条件下提高了104.88%，而湿热条件下的腐殖质化程度比潮温条件下降低了2.22%。其中有利于提高刺槐腐殖化程度的土壤性质为磷酸酶和脲酶活性，相对不利的土壤性质为光密度值和有效磷含量；相对有利于提高油松腐殖化程度的土壤性质是碱解氮含量，相对不利的土壤性质为速效钾含量和磷酸酶活性。刺槐和油松枯落叶腐殖质化对气候温湿变化响应明显，研究结果将为林地土壤肥力维持和植被管理提供一定理论依据和参考价值。

关键词: 刺槐, 油松, 林木枯落叶, 土壤腐殖质化, 土壤酶活性

CLC Number:

S153.6+22

WU Xue-mei, YANG Xue-yan, LIN Yuan-yuan, DAI Yi, CAO Le-le, DONG Wen-xuan, LIU Zeng-wen. Response of Humification of Robinia pseudoacacia and Pinus tabulaeformis Litter to Climate Temperature and Humidity Changes[J]. Acta Agrestia Sinica, 2021, 29(8): 1738-1747.

吴雪梅, 杨雪岩, 林媛媛, 代亦, 曹乐乐, 董文萱, 刘增文. 刺槐和油松枯落叶腐殖质化对气候温湿变化的响应[J]. 草地学报, 2021, 29(8): 1738-1747.

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Response of Humification of Robinia pseudoacacia and Pinus tabulaeformis Litter to Climate Temperature and Humidity Changes

刺槐和油松枯落叶腐殖质化对气候温湿变化的响应

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