抚育间伐对人工林土壤肥力的影响

应用生态学报 ›› 2001, Vol. ›› Issue (5): 672-676.

抚育间伐对人工林土壤肥力的影响

张鼎华¹, 叶章发², 范必有², 危廷林²

1. 福建师范大学生物工程学院, 福州 350007;
2. 福建省松溪县林业委员会, 松溪 353500

收稿日期:2000-09-04 修回日期:2000-11-07 出版日期:2001-09-25
通讯作者: 张鼎华,男,1958年生,博士,副教授主要从事森林土壤学、造林学、森林生态学的研究,发表论文40余篇.E-mail:dinghua@pub5.fz.fj.cn
基金资助:
国家自然科学基金重点资助项目(39630240).

Influence of thinning on soil fertility in artificial forests

ZHANG Dinghua ¹

Biological Engineering College, Fujian Normal University, Fuzhou 350007

Received:2000-09-04 Revised:2000-11-07 Online:2001-09-25

摘要/Abstract

摘要： 研究了杉木、马尾松、建柏、柳杉和木荷人工林的抚育间伐对林分土壤肥力的影响.结果表明,杉木、马尾松、建柏、柳杉、木荷间伐后降低了林分的郁闭度.改变了林内的生境条件,促进了林下乡土植被的生长和繁衍,林下植被覆盖度、植被生物量和物种丰富度有了较大幅度的增加,间伐的强度越大.增加的幅度也越大.与不间伐林分相比,各间伐林分两年后土壤微生物数量增加、酶活性增强、土壤容重降低、总孔隙度和速效养分提高,土壤肥力得到了改善和提高.间伐后林分土壤肥力得到提高的实质在于:间伐后林下植被生物多样性的提高诱发了土壤微生物多样性和数量的提高,并由此而增强了土壤的生物活性,加速了土壤养分的循环.

Abstract: The influence of thinning on soil fertilities in artificial forests of Cunning hamia lanceolata,Pinus massoniana,Fokienia hodginsii,Cryptomeria fortunei and Schima superba were studied.Thinning after two years reduced crown density of plantation stands,improved habitat conditions in plantations,promoted growth of native vegetation under plantations,increased understory cover degree,biomass and species richness.The more the thinning intensity,the more the effects.Compar ing with no thinning plantation stands,the thinning plantation stands increased soil microbe quantities,strengthened soil enzyme activities,decreased bulk dens ity,enhanced soil total porosity degree and available nutrients,improved soil fe rtilities after two years.The mechanism that thinning improves soil fertility is that the increased understory biodiversity after thinning enhances the increasi ng of quantity and diversity of soil microbe,and therefore,strengthens bioactivi ty of soil,accelerates nutrient cycling of soil.

中图分类号:

张鼎华, 叶章发, 范必有, 危廷林. 抚育间伐对人工林土壤肥力的影响[J]. 应用生态学报, 2001, (5): 672-676.

ZHANG Dinghua . Influence of thinning on soil fertility in artificial forests[J]. Chinese Journal of Applied Ecology, 2001, (5): 672-676.

参考文献

[1] DengS-J(邓仕坚),Zhang J-W(张家武),Chen C-Y(陈楚莹).1995.Effect of thinning intensity on the growth of Cunninghamia lanceolata and Michelian maclurei mixed forest. Chin J Appl Ecol(应用生态学报), 6(3):231～236 (in Chinese)
[2] Evans J. 1990. Long-term productivity of forest plantation-status in1990. IUFRO, 19th World Congress Proceedings, Division 1, Volume,1:11～16
[3] Fife DN, Nambiar EKS & Smethurst PJ. 1991. Managing the nitrogenfertilization of Pinus radiata from planting to age 10 years. User Ser.No. 4 CSIRO, Division of Forestry Canberra Australia. 37～46
[4] Gessel SP & Tweruerl J. 1990. Potential nutritional problems in maintenance of long-term southern hemisphere plantation productivity, IUFRO, 19th World Congress Proceedings, Division 1, Volume, 1:22～27
[5] Kimmins JP. 1990. A strategy for research on the maintenance of longterm site productivity. IUFRO, 19th World Congress Proceedings, Division 1, Volume, 1:1～6
[6] Ma Y-Q(马越强),Liao L-P(廖利平),Yang Y-J(杨跃军)1998 Effect of vanillin on the growth of Chinese-fir(Cunninghamia lanceolata)seedlings. Chin J Appl Ecol(应用生态学报),9(2):128～132(inChinese)
[7] Nanjing Institute of Soil, The Chinese Academy of Sciences(中国科学院南京土壤研究所)1980. The Physical and Chemical Analysis ofSoil. Shanghai:Shanghai Sciences and Technology Press. (in Chinese)
[8] Sadanadan NEK. 1996. Sustained productivity of forests is a continuingchallenge to soil science. Soil Sci Soc Am J, 60:1629～1642
[9] Shen G-F(沈国舫). 1988. Some views on the new trends of plantationforestry in the world. World For Res(世界林业研究),1(1):1～5(inChinese)
[10] Shen G-F(沈国舫).1991. Intensified culturing plantation - a mainquestion for discussion of world forestry research. World For Res(世界林业研究),4(3):1～6(in Chinese)
[11] Smethurst PJ & Nambiar EKS. 1990. Effects of contrasting silvicultural practices on nitrogen supply to young radiada pine. In:Dyck WJand Mees CA eds. Impact of intensive harvesting on forest site productivity. Proc. IEA-BE A3 Worksh, New Zealand. March 1989. IEA-BET6-A6 Rep. No. 2. FRI Bull No. 159. For. Res. Inst. Rotorua. NewZealand, 6:85～96
[12] Smethurst PJ & Nambiar EKS. 1995. Changes in soil carbon and nitrogen during the establishment of a second crop of Pinus radiata. ForEcol Manage, 73:145～155
[13] Xu G-H(许光辉),Zheng H-Y(郑洪元)1986. A Handbook on Analysis Method of Soil Microbe. Beijing:China Agricultural Press. (in Chinese)
[14] Zhang W-R(张万儒),Xu B-T(许本彤).1986. Long-term ResearchMethod on Forestry Soil. Beijing:China Forestry Publishing House. (inChinese)