SHORT-TERM AND LONG-TERM IMPACTS OF SPATIAL RESTRICTIONS ON HARVEST SCHEDULING WITH REFERENCE TO RIPARIAN ZONE PLANNING

被引:24
作者
YOSHIMOTO, A [1 ]
BRODIE, JD [1 ]
机构
[1] OREGON STATE UNIV,DEPT FOREST RESOURCES,CORVALLIS,OR 97331
来源
CANADIAN JOURNAL OF FOREST RESEARCH-REVUE CANADIENNE DE RECHERCHE FORESTIERE | 1994年 / 24卷 / 08期
关键词
D O I
10.1139/x94-210
中图分类号
S7 [林业];
学科分类号
0829 ; 0907 ;
摘要
Owing to the significance of shade, wildlife habitat, soil stabilization, and water-filtering effects of streamside vegetation on the riparian zone, spatial restrictions are imposed on both public and private harvesting areas along the stream by state and federal agencies. Analysis of both short- and long-term impacts of the riparian zone spatial restrictions as well as spatial restrictions on harvest units is presented. The heuristic model called SSMART, for spatially constrained harvest scheduling problems, is used to solve the proposed problems. The Green River sub-basin on the Alsea Ranger District, Siuslaw National Forest, Oregon, is used for the analysis. Our computational experiments show that the marginal reduction of the total present net worth in dollars is about 6.2% per 100-foot (1 foot = 0.305 m) width of the riparian management area, and about 6.7% for the average annual harvest flow. It is also shown that increasing the exclusion period to two or three periods could cause major reduction (25-40%) in both the total present net worth and the average annual harvest flow. The linear programming relaxation is revealed to provide a good approximation for impacts of the size of riparian management areas, while it cannot be used for examining impacts of the exclusion period.
引用
收藏
页码:1617 / 1628
页数:12
相关论文
共 22 条
[11]  
NELSON J, 1991, FOREST SCI, V37, P101
[12]   COMPARISON OF A RANDOM SEARCH ALGORITHM AND MIXED INTEGER PROGRAMMING FOR SOLVING AREA-BASED FOREST PLANS [J].
NELSON, J ;
BRODIE, JD .
CANADIAN JOURNAL OF FOREST RESEARCH-REVUE CANADIENNE DE RECHERCHE FORESTIERE, 1990, 20 (07) :934-942
[13]   THE INFLUENCE OF CUT-BLOCK SIZE AND ADJACENCY RULES ON HARVEST LEVELS AND ROAD NETWORKS [J].
NELSON, JD ;
FINN, ST .
CANADIAN JOURNAL OF FOREST RESEARCH-REVUE CANADIENNE DE RECHERCHE FORESTIERE, 1991, 21 (05) :595-600
[14]   SPATIALLY CONSTRAINED TIMBER HARVEST SCHEDULING [J].
OHARA, AJ ;
FAALAND, BH ;
BARE, BB .
CANADIAN JOURNAL OF FOREST RESEARCH-REVUE CANADIENNE DE RECHERCHE FORESTIERE, 1989, 19 (06) :715-724
[15]  
OLSEN ED, 1987, CORVILLIS RES B, V61
[16]  
ROISE JP, 1990, FOREST SCI, V36, P487
[17]  
SESSIONS J, 1988, 1988 P INT MOUNT LOG, P71
[18]  
TORRES R, 1989, THESIS OREGON STATE
[19]   COMPARATIVE-ANALYSIS OF ALGORITHMS TO GENERATE ADJACENCY CONSTRAINTS [J].
YOSHIMOTO, A ;
BRODIE, JD .
CANADIAN JOURNAL OF FOREST RESEARCH-REVUE CANADIENNE DE RECHERCHE FORESTIERE, 1994, 24 (06) :1277-1288
[20]  
YOSHIMOTO A, 1994, IN PRESS FOR SCI, V40