不同森林管理预案下友好林业局森林景观的动态变化  

Simulate Long-Term Effects of Forest Management Alternatives on Forest Landscape in Youhao Forest Bureau

作　　者：金龙如[1,2] 贺红士[1,3] 周宇飞[1,2] 布仁仓[1] 孙克萍[4] 

机构地区：[1]中国科学院沈阳应用生态研究所,沈阳110016 [2]中国科学院研究生院,北京100039 [3]美国密苏里大学自然资源学院,哥伦比亚65211 [4]东北师范大学城市与环境科学学院,长春130024

出　　处：《林业科学》2009年第5期157-163,共7页Scientia Silvae Sinicae

基　　金：国家自然科学基金重点项目(40331008);中国科学院知识创新工程资助项目(KSCX2-SW-133)资助

摘　　要：Knowledge about cumulative effects of forest management alternatives on forest landscape is required to make forest management decision. In this paper,a spatially explicit landscape model,LANDIS,was applied to simulate forest landscape changes in 200 years under four management alternatives (no cutting,clearcutting,selective cutting I and II) in Youhao Forestry Bureau located in Small Khingan Mountains. APACK was used to calculate distribution area of the representative species and species age cohort for six species. The results showed:1) timber harvest decreased area percentage of representative conifer species,Pinus koraiensis,Picea koraiensis and Picea jezoensis,Larix gmelinii to some extent compared to no cutting. The most influencing cutting mode for the area percentage of Tilia amurensis and Quercus mongolica was selective cutting II,followed by selective cutting I and clearcutting. To the contrast,the change of area percentage of Betula phatyphylla was contrary to the management alternatives; 2) As to species age cohort composition,timber harvest significantly changed age structure,that is,it decreased over-matured age cohort of representative species,and increased seedling and middle-age cohort (B. phatyphylla was not included,because its area percentage of over-mature age cohort was the highest under clearcutting than other three scenarios).Knowledge about cumulative effects of forest management alternatives on forest landscape is required to make forest management decision. In this paper, a spatially explicit landscape model, LANDIS, was applied to simulate forest landscape changes in 200 years under four management alternatives （no cutting, clearcutting, selective cutting Ⅰ and Ⅱ） in Youhao Forestry Bureau located in Small Khingan Mountains. APACK was used to calculate distribution area of the representative species and species age cohort for six species. The results showed： 1 ） timber harvest decreased area percentage of representative conifer species, Pinus koraiensis, Picea koraiensis and Picea jezoensis, Larix gmelinii to some extent compared to no cutting. The most influencing cutting mode for the area percentage of Tilia amurensis and Quercus mongolica was selective cutting Ⅱ, followed by selective cutting Ⅰ and clearcutting. To the contrast, the change of area percentage of Betula phatyphyUa was contrary to the management alternatives; 2） As to species age cohort composition, timber harvest significantly changed age structure, that is, it decreased over-matured age cohort of representative species, and increased seedling and middle-age cohort （ B. phatyphylla was not included, because its area percentage of over-mature age cohort was the highest under clearcutting than other three scenarios）.

关 键 词：空间直观景观模型(LANDIS模型) 预案 采伐 森林景观 

分 类 号：S752[农业科学—森林经理学]