| 丹江口湖北库区马尾松人工林水文生态效应 |
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| 引用本文： | 王晓荣,皮忠来,刘学全,等.丹江口湖北库区马尾松人工林水文生态效应[J].湖北林业科技,2014(2):1-6. |
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| 作者姓名： | 王晓荣 皮忠来 刘学全 |
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| 作者单位： | [1]湖北省林业科学研究院,武汉430075 [2]湖北省太子山林管局,荆门431822 |
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| 基金项目： | 国家林业局948项目“大型水库水源涵养林可持续经营技术引进与应用”（2010-4-04）。 |
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| 摘 要： | 采用野外实地观测与室内浸水法，对丹江口湖北库区龙口林场5种类型马尾松林分枯落物蓄水、土壤理化性质和蓄水能力、地表径流和土壤侵蚀等水文效应进行了研究。结果表明：①不同类型马尾松林枯落物层最大持水量间存在显著差异，变化范围在45．83-93．32t·hm^-2，为松柏混交林〉针阔混交林〉低密度马尾松林〉中密度马尾松林〉高密度马尾松林。有效拦蓄量变化范围在29．83-41．79t·hm^-2，为中密度马尾松林〉松柏混交林〉针阔混交林〉低密度马尾松林〉高密度马尾松林。②随着土壤深度的增加，土壤容重呈增加的趋势，而总孔隙度呈逐渐递减的趋势。不同类型马尾松土壤贮水能力差异明显，表现为针阔混交林〉低密度马尾松林〉中密度马尾松林〉松柏混交林〉高密度马尾松林，针阔混交林约是高密度马尾松林的1．25倍。③不同森林类型地表径流量在14．68-29．56m^3·hm^-2之间，土壤侵蚀量在2．01～4．15m3·hm^-2之间，且均以栎类次生林最优，松柏混交林次之，马尾松纯林最低。总体而言，综合利用抚育择伐和人工诱导自然更新的方法，人工诱导马尾松纯林逐步向针阔混交林发育，可更有效提高水土保持功能。
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| 关 键 词： | 丹江口湖北库区 马尾松人工林 水文生态效应 林分密度 |
Hydro-Ecological Effect of Different Types of Pinnus massoniana Plantation in Danjiangkou Reservoir Area of Hubei Province |
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| Wang Xiaorong Pi Zhonglai Liu Xuequan,Tang Wangpeng Pang Hongdong Zheng Jingjin Zheng Lanying.Hydro-Ecological Effect of Different Types of Pinnus massoniana Plantation in Danjiangkou Reservoir Area of Hubei Province[J].Hubei Forestry Science and Technology,2014(2):1-6. |
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| Authors: | Wang Xiaorong Pi Zhonglai Liu Xuequan Tang Wangpeng Pang Hongdong Zheng Jingjin Zheng Lanying |
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| Institution: | Wang Xiaorong Pi Zhonglai Liu Xuequan Tang Wangpeng Pang Hongdong Zheng Jingjin Zheng Lanying (1.Hubei Academy of Forestry Wuhan 430075 2. Taizi Mountain Forest Management Bureau of Hubei Province Jingmen 431822) |
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| Abstract: | By the methods of field survey and soaking indoor, this paper studied the hydro-ecological effect of five kinds of Pi-nnus massoniana plantation in Danjiangkou Reservoir Area of Hubei Province, including litter water-holding capacity,soil physi- cal properties, soil water-holding capacity, surface runoff and soil erosion. The results were showed as follows： ①There were significant differences in maximum water-holding capacity of litter layer among different types of Pinnus massoniana plantation. The range of variation of maximum water-holding capacity of litter layer was 45.83-93. 32 t·hm^-2, and the sequence of maxi- mum water-holding capacity of litter layer of five kinds of Pinnus massoniana plantation first was decomposed mixed forest of pine and cypress, second was mixed broadleaf-conifer forest, third was low-density Pinnus massoniana stand, fourth was medi- um-density Pinnus massoniana stand, the last was high density Pinnus rnassoniana stand, The effective retaining content in litter layer was ranging from 29. 83 t ·hm^-2 to 41.79 t ·hm^-2, the sequence of which of five kinds of Pinnus massniana plantation first was the highest medium density Pinnus massoniana stand, the second was mixed forest of pine and cypress, the third was mixed broadleaf-conifer forest, the fourth was low-density Pinnus massoniana stand, the last was high density Pinnus massoniana stand. ②With the increase of soil depth, soil bulk density increased, while total porosity decreased gradually. Soil water storage capacity of different types of Pinnus massoniana was significantly different, the order first was mixed broadleaf-conifer forest, the second was low-density Pinnus massoniana stand, the third was medium density Pinnus massoniana stand, the fourth was mixed forest of pine and cypress, the last was high density Pinnus massoniana stand, and soil water storage capacity of mixed broadleaf-coriifer forest was about 1.25 times higher than that of high density Pinnus massoniana stand. ③Surface runoff and soilerosion of different forest types was respectively 14. 68-29. 56 m3·hm^-2 and 2. 01-4. 15 m3·hm^-2, and oak secondary forest was the best, the mixed forest of pine and cypress followed, Pinnus massoniana stand was the worst. In general, comprehensive utilization of selective cutting and artificially induced natural regeneration methods, which is beneficial to gradually induce Pinnus masson/ana stand to mixed broadleaf-conifer forest growth, can effectively enhance soil and water conservation function. |
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| Keywords: | Key words:Danjiangkou Reservoir Area of Hubei Province Pinnus massoniana plantation hydro ecological effect stand density |
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