Biodiv Sci ›› 2009, Vol. 17 ›› Issue (1): 10-18. DOI: 10.3724/SP.J.1003.2009.08225 cstr: 32101.14.SP.J.1003.2009.08225
• Paper • Previous Articles Next Articles
Xuezhi Wang, Weihua Xu, Zhiyun Ouyang*()
Received:
2008-09-10
Accepted:
2009-01-06
Online:
2009-01-20
Published:
2009-01-20
Contact:
Zhiyun Ouyang
Xuezhi Wang, Weihua Xu, Zhiyun Ouyang. Impacts of spatio-temporal changes in agricultural land on giant panda habitat: A case study in the Baicaohe watershed of the mid-Minshan Mountains[J]. Biodiv Sci, 2009, 17(1): 10-18.
自然因子 Natural factors | 适宜 Suitable | 次适宜 Marginally suitable | 不适宜 Unsuitable | |||||
---|---|---|---|---|---|---|---|---|
标准 Criteria | 痕迹点比例 Ratio to total fecal samples (%) | 标准 Criteria | 痕迹点比例 Ratio to total fecal samples (%) | 标准 Criteria | 痕迹点比例 Ratio to total fecal samples (%) | |||
海拔 Elevation (m) | 2,000-3,100 | 92.20 | 1,700-2,000; 3,100-3,500 | 7.80 | <1,700; ≥3,500 | 0 | ||
坡度 Slope (°) | ≤40 | 81.93 | 40-50 | 18.07 | >50 | 0 | ||
植被类型 Vegetation | 森林 Forest | 97.54 | 灌丛 Shrubs | 2.46 | 其他类型 Others | 0 | ||
竹类 Bamboos | 有 Presence | 97.33 | 无 Absence | 2.67 |
Table 1 Assessment of natural factors used to determine habitat suitability for giant pandas
自然因子 Natural factors | 适宜 Suitable | 次适宜 Marginally suitable | 不适宜 Unsuitable | |||||
---|---|---|---|---|---|---|---|---|
标准 Criteria | 痕迹点比例 Ratio to total fecal samples (%) | 标准 Criteria | 痕迹点比例 Ratio to total fecal samples (%) | 标准 Criteria | 痕迹点比例 Ratio to total fecal samples (%) | |||
海拔 Elevation (m) | 2,000-3,100 | 92.20 | 1,700-2,000; 3,100-3,500 | 7.80 | <1,700; ≥3,500 | 0 | ||
坡度 Slope (°) | ≤40 | 81.93 | 40-50 | 18.07 | >50 | 0 | ||
植被类型 Vegetation | 森林 Forest | 97.54 | 灌丛 Shrubs | 2.46 | 其他类型 Others | 0 | ||
竹类 Bamboos | 有 Presence | 97.33 | 无 Absence | 2.67 |
人为干扰因子 Human factors | 强 Strong | 中等 Moderate | 弱 Weak | 无 None | |||||||
---|---|---|---|---|---|---|---|---|---|---|---|
距离 Distance (m) | 痕迹点比例 Ratio to total samples (%) | 距离 Distance (m) | 痕迹点比例 Ratio to total samples (%) | 距离Distance (m) | 痕迹点比例 Ratio to total samples (%) | 距离Distance (m) | 痕迹点比例 Ratio to total samples (%) | ||||
公路距离 Distance to roads | 0-100 | 0.0 | 100-300 | 2.2 | 300-700 | 6.6 | >700 | 91.2 | |||
居民点距离 Distance to human settlements | 0-700 | 0.0 | 700-900 | 3.5 | 900-1,400 | 5.3 | >1,400 | 91.2 | |||
农用地距离 Distance to agricultural land | 0-100 | 0.8 | 100-400 | 3.8 | 400-700 | 6.0 | >700 | 89.5 |
Table 2 Assessment of the effects of human factors on giant panda habitat
人为干扰因子 Human factors | 强 Strong | 中等 Moderate | 弱 Weak | 无 None | |||||||
---|---|---|---|---|---|---|---|---|---|---|---|
距离 Distance (m) | 痕迹点比例 Ratio to total samples (%) | 距离 Distance (m) | 痕迹点比例 Ratio to total samples (%) | 距离Distance (m) | 痕迹点比例 Ratio to total samples (%) | 距离Distance (m) | 痕迹点比例 Ratio to total samples (%) | ||||
公路距离 Distance to roads | 0-100 | 0.0 | 100-300 | 2.2 | 300-700 | 6.6 | >700 | 91.2 | |||
居民点距离 Distance to human settlements | 0-700 | 0.0 | 700-900 | 3.5 | 900-1,400 | 5.3 | >1,400 | 91.2 | |||
农用地距离 Distance to agricultural land | 0-100 | 0.8 | 100-400 | 3.8 | 400-700 | 6.0 | >700 | 89.5 |
实际生境质量 人为影响强度 Degree of Quality of actual habitat human influences 潜在生境 质量 Quality of potential habitat | 强 Strong | 中 Moderate | 弱 Weak | 无 None |
---|---|---|---|---|
适宜 Suitable | 不适宜 Unsuitable | 次适宜 Marginally suitable | 次适宜 Marginally suitable | 适宜 Suitable |
次适宜 Marginally suitable | 不适宜 Unsuitable | 不适宜 Unsuitable | 次适宜 Marginally suitable | 次适宜 Marginally suitable |
不适宜 Unsuitable | 不适宜 Unsuitable | 不适宜 Unsuitable | 不适宜 Unsuitable | 不适宜 Unsuitable |
Table 3 Realized habitat resulting from a combination of potential habitat and human effects on habitat
实际生境质量 人为影响强度 Degree of Quality of actual habitat human influences 潜在生境 质量 Quality of potential habitat | 强 Strong | 中 Moderate | 弱 Weak | 无 None |
---|---|---|---|---|
适宜 Suitable | 不适宜 Unsuitable | 次适宜 Marginally suitable | 次适宜 Marginally suitable | 适宜 Suitable |
次适宜 Marginally suitable | 不适宜 Unsuitable | 不适宜 Unsuitable | 次适宜 Marginally suitable | 次适宜 Marginally suitable |
不适宜 Unsuitable | 不适宜 Unsuitable | 不适宜 Unsuitable | 不适宜 Unsuitable | 不适宜 Unsuitable |
1994 | 2001 | 2008 | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
次适宜 Marginally suitable | 适宜 Suitable | 总计 Total | 次适宜 Marginally suitable | 适宜 Suitable | 总计 Total | 次适宜 Marginally suitable | 适宜 Suitable | 总计 Total | |||
自然保护区外 Outside reserves | 10,160 | 8,200 | 18,360 | 9,157 | 7,821 | 16,978 | 8,527 | 5,880 | 14,407 | ||
自然保护区内 Inside reserves | 32,740 | 30,614 | 63,354 | 32,426 | 30,448 | 62,874 | 33,242 | 28,785 | 62,026 | ||
总计 Total | 42,900 | 38,814 | 81,714 | 41,584 | 38,269 | 79,852 | 41,769 | 34,664 | 76,433 |
Table 4 The habitat area (hm2) of giant panda in Baicaohe watershed in 1994, 2001 and 2008
1994 | 2001 | 2008 | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
次适宜 Marginally suitable | 适宜 Suitable | 总计 Total | 次适宜 Marginally suitable | 适宜 Suitable | 总计 Total | 次适宜 Marginally suitable | 适宜 Suitable | 总计 Total | |||
自然保护区外 Outside reserves | 10,160 | 8,200 | 18,360 | 9,157 | 7,821 | 16,978 | 8,527 | 5,880 | 14,407 | ||
自然保护区内 Inside reserves | 32,740 | 30,614 | 63,354 | 32,426 | 30,448 | 62,874 | 33,242 | 28,785 | 62,026 | ||
总计 Total | 42,900 | 38,814 | 81,714 | 41,584 | 38,269 | 79,852 | 41,769 | 34,664 | 76,433 |
海拔 Elevation | 潜在生境丧失面积 Potential habitat decreased (hm2) | 生境破坏面积 Damaged habitat by agricultural land (hm2) | 生境影响面积 Influenced habitat by agricultural land (hm2) | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
1994 | 2001 | 2008 | 1994 | 2001 | 2008 | 1994 | 2001 | 2008 | |||
1,700-1,800 | 2,332 | 2,452 | 2,729 | 162 | 185 | 437 | 2,009 | 2,101 | 2,156 | ||
1,800-1,900 | 1,636 | 1,917 | 2,376 | 57 | 105 | 405 | 1,450 | 1,677 | 1,857 | ||
1,900-2,000 | 872 | 1,279 | 1,885 | 15 | 30 | 330 | 756 | 1,158 | 1,459 | ||
2,000-2,100 | 450 | 611 | 1,258 | 11 | 37 | 281 | 317 | 464 | 849 | ||
2,100-2,200 | 305 | 433 | 920 | 12 | 24 | 176 | 161 | 290 | 590 | ||
2,200-2,300 | 212 | 317 | 647 | 7 | 20 | 84 | 107 | 233 | 441 | ||
2,300-2,400 | 121 | 200 | 441 | 1 | 3 | 52 | 61 | 158 | 278 | ||
2,400-2,500 | 77 | 99 | 336 | 0 | 3 | 30 | 25 | 79 | 171 | ||
合计 Total | 6,005 | 7,308 | 10,592 | 265 | 407 | 1,795 | 4,886 | 6,160 | 7,801 |
Table 5 The influence area of agricultural land on giant panda habitat in 1994, 2001 and 2008
海拔 Elevation | 潜在生境丧失面积 Potential habitat decreased (hm2) | 生境破坏面积 Damaged habitat by agricultural land (hm2) | 生境影响面积 Influenced habitat by agricultural land (hm2) | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
1994 | 2001 | 2008 | 1994 | 2001 | 2008 | 1994 | 2001 | 2008 | |||
1,700-1,800 | 2,332 | 2,452 | 2,729 | 162 | 185 | 437 | 2,009 | 2,101 | 2,156 | ||
1,800-1,900 | 1,636 | 1,917 | 2,376 | 57 | 105 | 405 | 1,450 | 1,677 | 1,857 | ||
1,900-2,000 | 872 | 1,279 | 1,885 | 15 | 30 | 330 | 756 | 1,158 | 1,459 | ||
2,000-2,100 | 450 | 611 | 1,258 | 11 | 37 | 281 | 317 | 464 | 849 | ||
2,100-2,200 | 305 | 433 | 920 | 12 | 24 | 176 | 161 | 290 | 590 | ||
2,200-2,300 | 212 | 317 | 647 | 7 | 20 | 84 | 107 | 233 | 441 | ||
2,300-2,400 | 121 | 200 | 441 | 1 | 3 | 52 | 61 | 158 | 278 | ||
2,400-2,500 | 77 | 99 | 336 | 0 | 3 | 30 | 25 | 79 | 171 | ||
合计 Total | 6,005 | 7,308 | 10,592 | 265 | 407 | 1,795 | 4,886 | 6,160 | 7,801 |
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