南方红壤丘陵区杜仲和油桐人工林水土保持效应的比较

doi:10.11707/j.1001-7488.20070802

林业科学 ›› 2007, Vol. 43 ›› Issue (08): 8-14.doi: 10.11707/j.1001-7488.20070802

南方红壤丘陵区杜仲和油桐人工林水土保持效应的比较

黄志刚^1,2 李锋瑞¹ 曹云² 欧阳志云² 李锡泉³ 田育新³ 王中建⁴ 柳辉⁵

1.中国科学院寒区旱区环境与工程研究所生态与农业研究室,兰州730000；2.中国科学院生态环境研究中心城市与区域生态国家重点实验室北京100085；3.湖南省林业科学院,长沙410004；4.湖南省慈利县林业局,张家界415300；5.宁夏环境监测中心站,银川750021

收稿日期:2006-07-25 修回日期:1900-01-01 出版日期:2007-08-25 发布日期:2007-08-25

Ecological Benefit of Soil and Water Conservation of Eucommia ulmoides and Vernica fordii Plantation in Hilly Red Soil Region,Southern China

Huang Zhigang^1,2,Li Fengrui²,Cao Yun¹,Ouyang Zhiyun²,Li Xiquan³,Tian Yuxin³,Wang Zhongjian⁴,Liu Hui⁵

1.Department of Ecology & Agriculture,Cold and Arid Regions Environment and Engineering Research Institute,Chinese Academy of Sciences Lanzhou 730000;2.State Key Laboratory of Urban and Regional Ecology,Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences Beijing 100085;3.Hunan Academy of Forestry Changsha 410004;4.Forestry Bureau of Cili County,Hunan Province Zhangjiajie 415300;5.Ningxia Environmental Monitoring Center Yinchuan 750021

Received:2006-07-25 Revised:1900-01-01 Online:2007-08-25 Published:2007-08-25

摘要/Abstract

摘要：

对南方红壤丘陵区杜仲和油桐人工林土壤蓄水功能、径流及泥沙流失特征进行监测,对比研究2种人工林的水土保持效应。结果表明:杜仲人工林林冠枝叶最大持水容量及林地凋落物吸水容量均高于油桐人工林;杜仲林地0～140cm土层年均土壤蓄水量达到239.7mm,高出油桐林地4.1%;2002—2005年油桐人工林年均径流深为75.1mm,是杜仲人工林的2.6倍;油桐林地年均土壤侵蚀模数达到19.6t.km^-2,是杜仲林地的2.9倍。杜仲林的土壤物理性质(土壤密度、最大持水量、渗透速率和毛管孔隙度)优于油桐林,其涵养水源的功能强于油桐林;杜仲人工林枝叶繁茂,其密度及盖度均高于油桐林,其控制水土流失的效果比油桐林好。作为水土保持树种,杜仲比油桐具有更好的水土保持效应。

关键词: 土壤蓄水量, 杜仲人工林, 油桐人工林, 土壤侵蚀模数, 水土保持

Abstract:

Comparative experiments on the function of soil water storage and characteristics of runoff and sediment loss under Vernica fordii plantation and Eucommia ulmoides plantation in the hilly red soil region were applied.The results showed:Canopy maximal water holding capacity and litters sopping up water capacity of E.ulmoides plantation were higher,compared with V.fordii plantation,as well as soil water content,and soil water content under E.ulmoides plantation reached 239.7 mm between 0 and 140 cm beneath ground,which is higher than the other by 4.1%.Annual average runoff and sediment loss under V.fordii plantation were 75.1 mm and 19.6 t·km^-2 from 2002 to 2005,which were 2.6 times and 2.9 times of E.ulmoides plantation,respectively.Soil physical properties(such as water holding capacity,density,porosity and infiltration rate)and the complexity of vegetation structure(characterized by canopy,density and vegetation fraction and so on)in E.ulmoides plantation were more prior than that in V.fordii plantation,thus the function of soil water storage capacity and soil and water conservation were better than the later.As retentive tree species on soil and water conservation,E.ulmoides plantation has better benefits than V.fordii plantation.

Key words: soil water storage, Eucommia ulmoides plantation, Vernica fordii plantation, soil erosive modulus, soil and water conservation

黄志刚;李锋瑞曹云欧阳志云李锡泉田育新王中建柳辉. 南方红壤丘陵区杜仲和油桐人工林水土保持效应的比较[J]. 林业科学, 2007, 43(08): 8-14.

Huang Zhigang;Li Fengrui;Cao Yun;Ouyang Zhiyun;Li Xiquan;Tian Yuxin;Wang Zhongjian;Liu Hui. Ecological Benefit of Soil and Water Conservation of Eucommia ulmoides and Vernica fordii Plantation in Hilly Red Soil Region,Southern China[J]. Scientia Silvae Sinicae, 2007, 43(08): 8-14.

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南方红壤丘陵区杜仲和油桐人工林水土保持效应的比较

Ecological Benefit of Soil and Water Conservation of Eucommia ulmoides and Vernica fordii Plantation in Hilly Red Soil Region,Southern China

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