干旱区生态环境知识资源中心(Arid): 辽宁章古台地区不同年龄樟子松固沙林对土壤pH值的影响

Arid

	辽宁章古台地区不同年龄樟子松固沙林对土壤pH值的影响
其他题名	Effects of Pinus sylvestris var. mongolica sand-fixation plantations with different ages on soil pH in Zhanggutai, Liaoning Province
	雷泽勇; 白津宁; 周凤艳; 于东伟; 李尧
来源期刊	生态学杂志
ISSN	1000-4890
出版年	2019
卷号	38 期号:11 页码:3264-3272
中文摘要	营造樟子松人工林是沙地治理的一项重要措施,而造林后林分的生长一般会引起土壤pH值的变化,但营造樟子松固沙林后引起的土壤pH变化却并没有引起关注。以辽宁省章古台不同林龄樟子松固沙林(幼龄林、中龄林、成熟林和过熟林)为对象,研究了营造樟子松林后不同发育阶段0~ 100 cm土层土壤pH值的变化及其影响因子。结果表明:(1)沙地营造樟子松人工林后,pH值的变化范围由对照草地的两个层次(0~10或0~ 20、20~ 100 cm)扩大为3个层次(0~ 10或0~20、20~40、40~ 100 cm)。(2)随人工林林龄的增加,0~20 cm层pH值显著降低,20~40 cm层保持不变,40~100 cm层幼龄林、成熟林显著高于过熟林,而过熟林与草地无显著差异。(3)樟子松人工林中,0~10 cm层,pH值与土壤全钾(TK)呈显著正相关,与土壤有效磷(AP)呈显著负相关,10~20 cm层,与土壤有效钾(AK)和土壤有机碳(SOC)呈显著负相关,而与土壤含水率(SW)呈显著正相关,20~40、40~60、60~80 cm层,分别与土壤碱解氮(AN)、土壤全氮(TN)、土壤全磷(TP)呈显著正相关。樟子松林处于幼龄林时,pH值在20~40和60~80 cm层分别与C/P和AN、土壤容重(BD)呈显著正相关,而在80~100cm层与N/P呈负相关;中龄林时,pH值在10~20 cm层与C/P呈显著负相关,20~40和40~60 cm层分别与粒径<0.05 mm的黏粉粒含量(FS)和TN呈显著正相关;成熟林时,pH值在0~10 cm层与BD、AP呈极显著正相关,与SW、AK、FS呈显著正相关,20~40 cm层与TN呈正相关,在60~ 100 cm层与C/N呈负相关;过熟林时,pH值在0~ 10 cm层与AN呈显著正相关,与TK呈显著负相关,10~20 cm层与TN呈显著正相关。
英文摘要	Establishment of Pinus sylvestris var. mongolica plantations is an important strategy to control desertification. Afforestation generally changes soil pH. However, changes in soil pH caused by the establishment of P. sylvestris var. mongolica sand-fixing forests are not well documented. In this study, we measured soil pH (0-100 cm soil layer) in P. sylvestris var. mongolica forests at different developmental stages (young,middle-aged, mature, and over-mature) in Zhanggutai of Liaoning Province. The results showed that the range of pH values shifted from two levels (0-10 or 0-20,20-100 cm) to three levels (0-10 or 0-20,20-40,40-100 cm). With the increases of stand age, soil pH decreased significantly in 0-20 cm layer, and kept unchanged in 20-40 cm layer. Soil pH in 40-100 cm layer of young and mature forests were significantly higher than that of over-mature forests,while there was no significant difference between overmature forests and grasslands. Soil pH was significantly positively related to total K content and negatively related to available P content in 0-10 cm soil layer. There was a significant negative correlation between soil pH and available K and soil organic C contents, a positive correlation with soil water content in 10-20 cm layer, and positive correlations with available N,total N and total P contents in 20-40, 40-60, 60-80 cm soil layers. In young forests, soil pH was positively correlated with C/P ratio, available N, bulk density in 20-40 and 60-80 cm layers, respectively, and negatively correlated with N/P ratio in 80-100 cm layer. In middle-aged forests, soil pH was negatively correlated with C/P ratio in 10-20 cm layer, and positively correlated with FS (the sum percentage of clay (<0.002 mm) and silt (0.002-0.05 mm)) and total N content in 20-40 cm and 40-60 cm layers, respectively. In mature forests, soil pH of 0-10 cm layer was significantly positively correlated with soil bulk density and available P,and positively related to soil moisture, available K and FS. Soil pH was positively correlated with total N in 20-40 cm layer and negatively correlated with C/N ratio in 60-100 cm layer. In over-mature forests, soil pH was positively correlated with available N in 0-10 cm layer, while negatively correlated with total K. There was a positive correlation between soil pH and total N in 10-20 cm layer.
中文关键词	土壤pH值 ; 樟子松固沙林 ; 林分年龄 ; 土壤因子
英文关键词	soil pH Pinus sylvestris var. mongolica sand-fixation forest stand age soil property
类型	Article
语种	中文
收录类别	CSCD
WOS类目	Life Sciences & Biomedicine - Other Topics
CSCD记录号	CSCD:6611869
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/353265
作者单位	雷泽勇, 辽宁工程技术大学环境科学与工程学院, 阜新, 辽宁 123000, 中国. 白津宁, 辽宁工程技术大学环境科学与工程学院, 阜新, 辽宁 123000, 中国. 于东伟, 辽宁工程技术大学环境科学与工程学院, 阜新, 辽宁 123000, 中国. 李尧, 辽宁工程技术大学环境科学与工程学院, 阜新, 辽宁 123000, 中国. 周凤艳, 辽宁省沙地治理与利用研究所, 阜新, 辽宁 123000, 中国.
推荐引用方式 GB/T 7714	雷泽勇,白津宁,周凤艳,等. 辽宁章古台地区不同年龄樟子松固沙林对土壤pH值的影响[J],2019,38(11):3264-3272.
APA	雷泽勇,白津宁,周凤艳,于东伟,&李尧.(2019).辽宁章古台地区不同年龄樟子松固沙林对土壤pH值的影响.生态学杂志,38(11),3264-3272.
MLA	雷泽勇,et al."辽宁章古台地区不同年龄樟子松固沙林对土壤pH值的影响".生态学杂志 38.11(2019):3264-3272.