呼中林业局森林采伐方式对森林景观格局的长期影响

生态学杂志

呼中林业局森林采伐方式对森林景观格局的长期影响

公霞^1,2；常禹¹；布仁仓^1,2；李秀珍¹；徐崇刚^1,2；于庆和³

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朝阳县环境保护局，朝阳 122000

收稿日期:2005-08-11 修回日期:2005-12-28 出版日期:2006-07-10 发布日期:2006-07-10

Long-term effects of different forest harvesting modes on forest landscape pattern in Huzhong Forestry Bureau

GONG Xia^1,2;CHANG Yu¹; BU Rencang,LI Xiuzhen¹; XU Chonggang^1,2; YU Qinghe³

¹Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China; ²Graduate University of Chinese Academy of Sciences, Beijing 100039, China；³Environmental Protection Bureau of Chaoyang County, Chaoyang 122000, China

Received:2005-08-11 Revised:2005-12-28 Online:2006-07-10 Published:2006-07-10

摘要/Abstract

摘要： 采用空间直观景观模型（LANDIS）模拟了大兴安岭地区呼中林业局在无采伐和同一采伐量下皆伐、二次渐伐和择伐共4种方案下森林景观300年的长期动态变化。结果表明，与无采伐方案相比较，采伐使落叶松和云杉的分布面积减小，樟子松、白桦的分布面积增大；择伐对本区分布面积最大的2个树种——落叶松和白桦的影响最小。采伐改变了树种年龄结构，降低了过熟林的相对面积；相对于皆伐而言，渐伐和择伐时降低的程度较大。各种采伐方式间落叶松和云杉的聚集度差异较小，白桦和樟子松的聚集度则存在显著差异。

关键词: 大豆连作障碍, 土壤酚酸

Abstract: With spatially intuitional landscape model (LANDIS), this paper simulated the long term (300 years) dynamic changes of forest landscape pattern in Huzhong Forestry Bureau in Daxing'anling Mountains under no cutting, clear cutting, gradual cutting, and selective cutting. Compared with no cutting, the other three harvesting modes decreased the distribution area of Larix gmelini andPicea koraiensis, but increased that ofPinus sylvestris var. mongolica andBetula platyphylla. Selective cutting had the smallest effect on the distribution area of Larix gmelini andB. platyphylla. Cutting changed the age structure of tree species, and reduced the distribution area of over-matured forests. Compared with clear cutting, gradual cutting and selective cutting had more effects on this reduction. Under different forest harvesting modes, the aggregation of B. platyphylla andP. sylvestris var.mongolica had little difference, but great difference was observed on the aggregation of L. melini andP. koraiensis.

Key words: Continuously cropping soybean obstacle, Soil phenolic acids

公霞；常禹；布仁仓；李秀珍；徐崇刚；于庆和 . 呼中林业局森林采伐方式对森林景观格局的长期影响[J]. 生态学杂志.

GONG Xia^1,2;CHANG Yu¹; BU Rencang,LI Xiuzhen¹; XU Chonggang^1,2; YU Qinghe³ . Long-term effects of different forest harvesting modes on forest landscape pattern in Huzhong Forestry Bureau[J]. cje.