| 海拔及旅游干扰对武功山山地草甸土壤渗透性的影响 |
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| 引用本文： | 李志,袁颖丹,胡耀文,孟文武,张学玲,郭晓敏,张文元,胡冬南,牛德奎. 海拔及旅游干扰对武功山山地草甸土壤渗透性的影响[J]. 生态学报, 2018, 38(2): 635-645 |
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| 作者姓名： | 李志 袁颖丹 胡耀文 孟文武 张学玲 郭晓敏 张文元 胡冬南 牛德奎 |
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| 作者单位： | 江西农业大学林学院;江西省森林培育重点实验室;江西特色林木资源培育与利用2011协同创新中心;南京林业大学林学院; |
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| 基金项目： | 国家自然科学基金项目（31360177，31560150）；国际植物营养研究所合作项目（IPNI-JX29）；江西省研究生创新专项资助项目（YC2013-B029） |
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| 摘 要： | 土壤渗透能力是影响土壤侵蚀的重要因素之一,是反映土壤水源涵养及调节功能的重要指标,目前对于亚热带山地草甸土壤渗透性方面研究较少。江西武功山草甸是亚热带山地草甸的典型代表,以面积广和分布基准海拔低的特点,在华东植被垂直带谱中具有典型性和特殊性,但是人为干扰和过度旅游开发使武功山脆弱的山地草甸出现严重退化和破碎化态势。以武功山不同海拔及旅游干扰程度山地草甸土壤为研究对象,分别测定0—20 cm和20—40 cm土层土壤的初渗率、稳渗率、平均入渗率、前60分钟渗透总量、温度、湿度、容重、最大持水量、最小持水量、毛管持水量、pH、有机质、速效氮、速效磷、速效钾等理化指标,分析不同海拔及干扰程度草甸土壤渗透性特征,探讨影响土壤渗透性的相关因子,为亚热带地区退化草甸的修复及可持续经营提供参考。结果表明:(1)1600—1800 m范围,随着海拔升高,土壤渗透性呈降低趋势,在1900 m范围土壤渗透性又有所提高,各海拔土壤渗透性排序为1600 m1700 m1900 m1800 m。(2)随着干扰程度增强,草甸土壤渗透性呈降低趋势,各干扰程度的土壤渗透性排序为无干扰轻度干扰中度干扰重度干扰。(3)所有草甸分布区0—20 cm土层的土壤渗透性均高于20—40 cm土层,初渗率平均入渗率稳渗率。(4)通用经验模型更适合武功山草甸土壤水分入渗过程,Horton模型次之,Philip模型和Kostiakov模型拟合效果都比较差。(5)土壤渗透性与土壤湿度、毛管持水量呈显著正相关(P0.05),与容重呈显著负相关(P0.05),初渗率及平均入渗率与速效氮含量显著正相关(P0.05),稳渗率、平均入渗率、渗透总量与速效钾含量呈显著正相关(P0.05)。
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| 关 键 词： | 海拔 旅游干扰 草甸 渗透性 武功山 |
| 收稿时间： | 2017-01-09 |
Effects of elevation and tourism disturbance on meadow soil infiltration on Wugong Mountain |
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| LI Zhi,YUAN Yingdan,HU Yaowen,MENG Wenwu,ZHANG Xueling,GUO Xiaomin,ZHANG Wenyuan,HU Dongnan and NIU Dekui. Effects of elevation and tourism disturbance on meadow soil infiltration on Wugong Mountain[J]. Acta Ecologica Sinica, 2018, 38(2): 635-645 |
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| Authors: | LI Zhi YUAN Yingdan HU Yaowen MENG Wenwu ZHANG Xueling GUO Xiaomin ZHANG Wenyuan HU Dongnan NIU Dekui |
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| Affiliation: | College of Forestry, Jiangxi Agricultural University, Nanchang 330045, China;Jiangxi Key Laboratory of Silviculture, Nanchang 330045, China;Collaborative Innovation Center of Jiangxi Typical Trees Cultivation and Utilization, Nanchang 330045, China,College of Forestry, Jiangxi Agricultural University, Nanchang 330045, China;Jiangxi Key Laboratory of Silviculture, Nanchang 330045, China;Collaborative Innovation Center of Jiangxi Typical Trees Cultivation and Utilization, Nanchang 330045, China;College of Forestry, Nanjing Forestry University, Nanjing 210037, China,College of Forestry, Jiangxi Agricultural University, Nanchang 330045, China;Jiangxi Key Laboratory of Silviculture, Nanchang 330045, China;Collaborative Innovation Center of Jiangxi Typical Trees Cultivation and Utilization, Nanchang 330045, China,College of Forestry, Jiangxi Agricultural University, Nanchang 330045, China;Jiangxi Key Laboratory of Silviculture, Nanchang 330045, China;Collaborative Innovation Center of Jiangxi Typical Trees Cultivation and Utilization, Nanchang 330045, China,College of Forestry, Jiangxi Agricultural University, Nanchang 330045, China;Jiangxi Key Laboratory of Silviculture, Nanchang 330045, China;Collaborative Innovation Center of Jiangxi Typical Trees Cultivation and Utilization, Nanchang 330045, China,College of Forestry, Jiangxi Agricultural University, Nanchang 330045, China;Jiangxi Key Laboratory of Silviculture, Nanchang 330045, China;Collaborative Innovation Center of Jiangxi Typical Trees Cultivation and Utilization, Nanchang 330045, China,College of Forestry, Jiangxi Agricultural University, Nanchang 330045, China;Jiangxi Key Laboratory of Silviculture, Nanchang 330045, China;Collaborative Innovation Center of Jiangxi Typical Trees Cultivation and Utilization, Nanchang 330045, China,College of Forestry, Jiangxi Agricultural University, Nanchang 330045, China;Jiangxi Key Laboratory of Silviculture, Nanchang 330045, China;Collaborative Innovation Center of Jiangxi Typical Trees Cultivation and Utilization, Nanchang 330045, China and College of Forestry, Jiangxi Agricultural University, Nanchang 330045, China;Jiangxi Key Laboratory of Silviculture, Nanchang 330045, China;Collaborative Innovation Center of Jiangxi Typical Trees Cultivation and Utilization, Nanchang 330045, China |
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| Abstract: | |
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| Keywords: | elevation tourism disturbance meadow infiltration Wugong Mountain |
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