Sustainable Deforestation Evaluation Model and System Dynamics Analysis
Table 1
Index weight distribution and results evaluation.
Two-level index (3)
Second weight
Three-level index (9)
Three- level weight
Four-level index
Four- level weight
Road-cutting skidding
Cableway skidding
Standard values
Integrated assessment value
Standard values
Integrated assessment value
Ecological benefits (13)
0.5954
Natural ecology (5)
0.2763
Integrity of forestry landscape () Diversity index () Plantation productivity () Fertility index () Stability index ()
0.0647 0.1665 0.3310 0.3310 0.1068
0.6600 0.7300 0.6200 0.6100 0.5300
0.0070 0.0200 0.0338 0.0332 0.0093
0.7800 0.7600 0.7900 0.6500 0.8200
0.0083 0.0208 0.0430 0.0354 0.0144
Ecological protection (4)
0.5954
Water source conservation () Soil and water conservation () Air purifying () Soil improving ()
0.2046 0.3403 0.2505 0.2046
0.4700 0.3500 0.6700 0.3600
0.0341 0.0422 0.0595 0.0261
0.5800 0.6500 0.7100 0.7600
0.0421 0.0784 0.0630 0.0551
Ecological environment (4)
0.1283
Biomass of forest () Defending the remaining woods () Afforestation effect () Vegetation coverage ()
0.3309 0.1794 0.2201 0.2696
0.5200 0.6800 0.4500 0.8900
0.0131 0.0093 0.0076 0.0183
0.5700 0.9600 0.9500 0.9800
0.0144 0.0132 0.0160 0.0202
Economic benefits (9)
0.2763
Cost of production (3)
0.3011
Unit cost for ready (100 million yuan, reverse index) () Saving rate of unit cost () Pollution controlled cost (100 million yuan, reverse index) ()
0.3106 0.4361 0.2533
0 0 0
0 0 0
1 0.29 1
0.0258 0.0105 0.0211
Production efficiency (3)
0.4536
Utilization rate of forest resources () Utilization rate of equipment () Per capita work efficiency (m3/per man) ()
0.4361 0.3106 0.2533
0.5600 0.7500 0.0740
0.0306 0.0292 0.0023
0.7800 0.8900 0.1120
0.0426 0.0346 0.0036
Input of production (3↑)
0.2453
Increment of value of annual forest production (10,000 yuan) () The annual proportion of fixed investment (%) () The annual proportion of construction investment (%) ()
0.2224 0.3357 0.4419
0.3000 0.1000 0.4000
0.0045 0.0023 0.0120
0.3500 0.1500 0.4000
0.0052 0.0034 0.0120
Social benefits (17↑)
0.1283
Forest resources (4↑)
0.2392
Forestry area (10,000 hm2) () Unit area amount of growing stock (m3/hm2) () Forestry land area (10,000 hm2) () Structural integrity of forestry ()
0.1793 0.2201 0.2696 0.3310
0.6300 0.3900 0.5600 0.7900
0.0035 0.0026 0.0046 0.0080
0.6900 0.4400 0.6600 0.8700
0.0038 0.0030 0.0055 0.0088
Technological education (9↑)
0.4422
Improvement of scientific level () Improvement of educational level () Policies and regulations () Benefit future generations () Benefit other industries () Numbers of professionals () Ratio of trained staff to entire staff () Investment of science and technology project and key laboratory () Number of science and technology projects ()