[1]吴建平,袁正科,袁通志.湘西南沟谷森林土壤水文—物理特性与涵养水源功能研究[J].水土保持研究,2004,11(01):74-77,81.
　WU Jian-ping,YUAN Zheng-ke,YUAN Tong-zhi.Hydrological and Physical Characteristics of Forest Soil at Mountain Valley in Southwest of Hunan and Its Headwater Conservation Capacity[J].Research of Soil and Water Conservation,2004,11(01):74-77,81.
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湘西南沟谷森林土壤水文—物理特性与涵养水源功能研究

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 11 期数: 2004年01期 页码: 74-77,81 栏目: 出版日期: 1900-01-01
Title:
Hydrological and Physical Characteristics of Forest Soil at Mountain Valley in Southwest of Hunan and Its Headwater Conservation Capacity
作者:
吴建平1, 袁正科1, 袁通志2
1. 湖南省林业科学院, 长沙, 410004;
2. 湖南省通道县林业局, 湖南, 通道
Author(s):
WU Jian-ping1, YUAN Zheng-ke1, YUAN Tong-zhi2
1. Hunan Academy of Foresty, Changsha 410004, Hunan, China;
2. Forestry Bureau of Tongdao County, Hunan, China
关键词:
湘西南; 沟谷森林; 土壤水文—物理特性; 水源涵养功能
Keywords:
Southwest of Hunan; mountain valley forest; soil hydrological-physical characteristics; function of headwater conservation
分类号:
S715.7
摘要:
为了研究湘南沟谷森林生态系统水文—物理特性与水源涵养功能，采取野外挖掘土壤剖面观察、记载测定和室内理化分析相结合的方法。选择了21个典型森林群落的土壤剖面进行分析研究，其结果是：林中空气湿润系数（K1.84）>1.5，落叶阔叶林群落土壤结构体破坏率（6.1%）比针叶林杉木群落结构体破坏率（18.9%）低12.8%，土壤容重平均为1.01g/cm3，土壤总孔隙度平均为62.05%、毛管孔隙度平均为50.72%，非毛管孔隙度为11.72%，土壤通气度平均为28.83%；土壤水分特征值的变异系数大小为有效水含量>自然含水量>土壤有效水含量范围>最大持水量>毛管持水量，一次最大土壤有效贮水量平均为863.1t/hm2。研究区内土壤过湿，腐殖质化过程偏长，土壤有机质含量高达61.83g/kg，具有肥力高，质地好，通透性好，持水保土能力强等特点。
Abstract:
By combining the observation of soil profile at field with the chemical and physical analysis in laboratory, 21 samples of soil profile and structure from different forest communities were investigated and analyzed, which to study their headwater conservation and soil fertility. The results showed that the air moisture content in the forest was high and the coefficient (K=1.8) was more than 1.5. The proportion of destroyed soil structure at broad-leaved tree communities was 6.1%, which was 12.8% less than that of the conifer tree community (18.9%). The average solid soil contents was 1.01 g/cm3, and the total porosity percent was 62.05% averagely, capillary pore percent was 50.72%, non-capillary pore percent 11.72%. Soil aeration was 28.83%. The variation parameters of different eigenvalue of soil moisture content were as following: available moisture contentmoisture content at natural situationvariation range of available water content maximum moisture contentcapillary moisture content. The highest water storage capacity was 863.1 t/hm2 averagely. Soils in the investigated forests contain high moisture, and umification procedure last long time. The organ matter content was up to 61.83 g/kg. So the soil characterized by its high fertility, good aeration, fine texture has high capacity of headwater conservation.

参考文献/References:

[1] 中国林科院.森林土壤分析方法[Z].国家标准局批准, 1998.
[2] 中国科学院南京土壤研究所.土壤理化分析[M].上海:科学出版社, 1976.466-522.
[3] 陈绍栓.杉木细柄阿丁枫混交林涵养水源功能和土壤肥力的研究[J].土壤学报, 2002, 39(4):599-603.
[4] 叶仲节, 柴锡周.浙江林业[M].杭州:浙江科学技术出版社, 1980.191.
[5] 邱凤琼, 丁庆堂, 等.不同肥力水平的黑土中有机质碳、氮、磷的形态及其分配与供肥强度关系[M].沈阳:辽宁科学技术出版社, 1983.
[6] 吴建平, 袁正科.湖南天然林生物因子与土壤养分物理特性的关系[J].湖南林业科技, 2001, 20(6):30-32.
[7] 马雪华.森林水文学[M].北京:中国林业科学出版社, 1993.123-127.

备注/Memo

收稿日期:2003-8-5。
基金项目:国家科技攻关"长江中游湘南红壤岗丘水土保持植被建设技术研究与示范"项目部分内容
作者简介:吴建平（1955- ），女，研究员，主要从事森林生态和土壤生态研究，发表论文27篇.

更新日期/Last Update: 1900-01-01