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长江防护林(四川段)初期水土保持效益研究
引用本文:史立新,彭培好,慕长龙.长江防护林(四川段)初期水土保持效益研究[J].水土保持通报,1997,17(6):14-22.
作者姓名:史立新  彭培好  慕长龙
作者单位:四川省林业科学研究院
摘    要:该重点研究了新造防护林前5年的防护效益,结果林冠截留系数可达19%,地表径流系数比荒地减少10%至19%,土壤蓄水能力比荒地提高90%。造林第3年产沙量减少至造林前的0.3至0.9,第5年时仅为造林前的0.1至0.3。同时防护林效益将随林龄增加而增长。

关 键 词:防护林初期  水土保持效益  长江
收稿时间:1997/8/15 0:00:00

Study on the Initial Soil and Water Conservation Benefits of Yangtiz River Protective Forest
Shi Lixin,Peng Peihao and Mu Changlong.Study on the Initial Soil and Water Conservation Benefits of Yangtiz River Protective Forest[J].Bulletin of Soil and Water Conservation,1997,17(6):14-22.
Authors:Shi Lixin  Peng Peihao and Mu Changlong
Institution:Sichuan Institute of Forestry, Chengdu, 610081, PRC;Sichuan Institute of Forestry, Chengdu, 610081, PRC;Sichuan Institute of Forestry, Chengdu, 610081, PRC
Abstract:The initial 5-years benefits of newly built protective forest are studied in this paper.The results show that the canopy interception coefficient is up to 19%,runoff rate ofoverland flow decreases by 10~19% and the soil water storage capacity increases 90% than slope wasteland in the early two years.The annuaI sediment yield is decreases 10~70% in the third year and will be up to 70~90% in the fifth year after the protective forest has been built.At the same time,the benefits of protective forest will increase along with forest age prolonging.
Keywords:Initial period of protective forest  Benefits of soil and water conservation
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