科尔沁沙地南缘退化杨树人工林改造对土壤理化性质影响研究
赵梦迪 , 赵鹏武 , 刘晓彬 , 曹立春 , 岳永杰
内蒙古农业大学学报(自然科学版) ›› 2026, Vol. 47 ›› Issue (5) : 17 -25.
科尔沁沙地南缘退化杨树人工林改造对土壤理化性质影响研究
Analysis of Physical and Chemical Properties of the Soil in the Artificial Forest on the Southern Edge of Horqin Sandy Land
为了解退化林改造对土壤理化性质的影响,以科尔沁沙地南缘敖汉旗退化杨树人工林为研究对象,设置樟子松和山桃林(PE)、云杉和家榆林(PU)、樟子松和杨树林(PP)3种混交改造模式及未改造模式(CK)4个处理为研究样地,分析和探讨科尔沁沙地退化杨树人工林改造对土壤理化性质的影响。研究表明:PE和PU改造模式相对PP模式对土壤理化性质有显著影响(P<0.05)。在不同土层深度,PE和PU组土壤容重显著低于CK组(P<0.05),而PE和PU组土壤孔隙度和土壤含水率均显著高于CK组(P<0.05)。3种混交改造模式随着土层深度增加,土壤氮含量下降趋势趋于平缓。不同土层深度PP组碱解氮含量显著高于CK组(P<0.05);PE和PU组全碳含量高于CK组且PE组土壤全碳含量在40~60 cm最大;4个处理对土壤pH值和有效磷含量无显著影响(P>0.05)。随土层深度增加,4个处理土壤有机质含量均呈现下降趋势;除土层0~10 cm各组土壤有机质含量无显著差异(P>0.05),其他土层PE、PU和PP组土壤有机质含量均高于CK组。研究结果对森林生态系统土壤管理和退化植被恢复具有重要意义。
To understand the impact of degraded forest transformation on soil physical and chemical properties, a study was conducted on degraded poplar plantations at the southern edge of the Horqin Sandy Land in Aohan Banner. Four experimental treatments were set up, i.e., three mixed-planting transformation models(PE: Pinus sylvestris var.mongolica and Prunus persica, PU: Picea asperata and Caragana microphylla, and PP: Pinus sylvestris var.mongolica and Populus), and a control (CK) without transformation. The study investigated and analyzed the effects of the transformation of degraded poplar plantations in the Horqin Sandy Land on soil physical and chemical properties. The results showed that the PE and PU transformation models had a significant impact on soil physical and chemical properties compared to the PP model (P<0.05). At different soil depths, the soil bulk density of the PE and PU groups was significantly lower than that of the CK group (P<0.05),while the soil porosity and soil moisture content of the PE and PU groups were significantly higher than those of the CK group (P<0.05).With the increase in soil depth,the trend of soil nitrogen content decline in the three mixed-planting transformation models tended to level off. The alkali-hydrolyzable nitrogen content of the PP group was significantly higher than that of the CK group at different soil depths (P<0.05). The total carbon content of the PE and PU groups was higher than that of the CK group, and the total carbon content of the PE group was the highest at 40~60 cm. Soil pH and available phosphorus content were not significantly affected by the four treatments (P>0.05).With the increase in soil depth, the soil organic matter content of all four treatments showed a decreasing trend, except for the 0~10 cm soil layer where there was no significant difference in soil organic matter content among the groups (P>0.05), the soil organic matter content of the PE,PU, and PP groups was higher than that of the CK group in other soil layers. The research results are of great significance for soil management in forest ecosystems and the restoration of degraded vegetation.
| [1] |
郭欣宇. 奈曼旗不同带间距小叶杨防护林植被-土壤特征及耦合关系研究[D]. 呼和浩特:内蒙古农业大学,2023. |
| [2] |
蒋德明,曹成有,李雪华, |
| [3] |
伏媛媛,郝龙飞,岳永杰, |
| [4] |
郭江涛,彭晶晶,马鑫, |
| [5] |
吕欣晔,岳永杰,赵鹏武, |
| [6] |
彭海英,童绍玉,刘新有. 西双版纳不同年限橡胶林对土壤生产力的影响[J/OL]. 西南林业大学学报(自然科学),2025:1-8.(2025-11-11). |
| [7] |
张彦君,滑思涵,郭瑞, |
| [8] |
李世杰,魏天兴,于欢, |
| [9] |
邱新彩,彭道黎,李伟丽, |
| [10] |
|
| [11] |
杨大文,丛振涛,尚松浩, |
| [12] |
邱扬,傅伯杰,王军, |
| [13] |
辛鸿斌. 科尔沁沙地主要树种防护林土壤微生物群落结构研究[D]. 阜新:辽宁工程技术大学,2024. |
| [14] |
|
| [15] |
孟禹彤. 微塑料迁移对黑土区土壤理化性质和水稻生长状况的影响研究[D]. 哈尔滨:东北农业大学,2025. |
| [16] |
任启文,王鑫,李联地, |
| [17] |
陈传信,张永强,薛丽华, |
| [18] |
刘妮,李浪,吴迪. 石漠化山地刺梨园土壤理化性质分析[J]. 贵州科学,2025,43(4):63-65. |
| [19] |
张国庆. 鲁西黄泛平原区三种林下种养模式下的杨树人工林土壤特征分析[D]. 泰安:山东农业大学,2024. |
| [20] |
张燕. 云南乌蒙山国家级自然保护区主要植被类型生态化学计量特征[D]. 昆明:云南师范大学,2023. |
| [21] |
齐向东,王昭才,弓瑞. 内蒙古大青山前坡油松人工林生长特征研究[J]. 内蒙古林业科技,2021,47(1):28-33. |
| [22] |
游秀花,蒋尔可. 不同森林类型土壤化学性质的比较研究[J]. 江西农业大学学报,2005,27(3):357-360. |
| [23] |
何雨璇. 不同混交模式对杉木林下植被和土壤性质的影响[D]. 长沙:中南林业科技大学,2024. |
| [24] |
张浩,莫罗坚,陈葵仙, |
| [25] |
张瀛澜. 不同复垦模式的刺槐人工林对土壤理化性质及微生物的影响研究[D]. 太原:山西大学,2021. |
| [26] |
王小燕,王如,廖立国, |
内蒙古自治区科技计划项目(2022YFDZ0030-01)
内蒙古自治区直属高校基本科研业务费项目(BR251008)
/
| 〈 |
|
〉 |