Relative contribution of climate change and human activities to vegetation degradation and restoration in North Xinjiang, China
Hongfei Yang A B C D , Liang Yao A , Youbao Wang A and Jianlong Li C
+ Author Affiliations
- Author Affiliations
A College of Life Sciences, Anhui Normal University, 1 East Beijing Road, Wuhu 241000, Anhui, P.R. China.
B Collaborative Innovation Centre of Recovery and Reconstruction of Degraded Ecosystem in Wanjiang City Belt, Anhui Province, P.R. China.
C School of Life Science, Nanjing University, Nanjing, Jiangsu, P.R. China.
D Corresponding author. Email: hongfeiy@ahnu.edu.cn
The Rangeland Journal 39(3) 289-302 https://doi.org/10.1071/RJ16069
Submitted: 5 December 2015 Accepted: 3 June 2017 Published: 23 June 2017
Abstract
Climate change and human activities are the two primary driving factors in the vegetation degradation process, and the assessment of their relative roles in vegetation degradation is important to understand the driving mechanisms of vegetation degradation. In this study, net primary productivity (NPP) was selected as an indicator to distinguish the relative roles of climate change and human activities in vegetation degradation and restoration from 2001 to 2010 in North Xinjiang, China. The potential NPP and the human appropriation of NPP were served as the indicator of the effects of climate change and human activities in vegetation degradation and restoration. The results showed that human activities were the dominant factor that induced vegetation degradation, accounts for 55% (153 720 km2) of the total degradation, whereas 25% (69 336 km2) of the total degradation resulted from climate change; the combination of human activities and climate change was the cause in 20% (55 429 km2) of the total degradation. In contrast, 61% (66 927 km2) of the total vegetation restoration was dominated by human activities and 29% (31 553 km2) was caused by climate change; the areas of vegetation restoration caused by the combination of human activities and climate change were 10 551 km2 (10%). The relative roles of the two factors possessed great spatial heterogeneity in five vegetation types. Climate dominated degradation expansion and human activities dominated vegetation restoration in forest. Both the degradation and restoration were dominated by human activities in grassland. In desert, degradation was dominated by human activities and vegetation restoration by climate. In cropland and crop/natural vegetation mosaic, degradation was dominated by both human activities and climate change and restoration was dominated by human activities. These results demonstrated that human activities played a demonstrably positive role in vegetation restoration, and ecological restoration projects were effective on mitigating vegetation degradation and also promoting restoration in the southern areas of North Xinjiang.
Additional keywords: driving factors, dynamic, net primary productivity (NPP), vegetation status.
References
Adger, W. N., Benjaminsen, T. A., Brown, K., and Svarstad, H. (2000). ‘Advancing a Political Ecology of Global Environmental Discourse.’ (Centre of Social and Economic Research on the Global Environment, University of East Anglia: London.)Becerril-Piña, R., Mastachi-Loza, C. A., González-Sosa, E., Díaz-Delgado, C., and Bâ, K. M. (2015). Assessing desertification risk in the semi-arid highlands of central Mexico. Journal of Arid Environments 120, 4–13.
| Assessing desertification risk in the semi-arid highlands of central Mexico.Crossref | GoogleScholarGoogle Scholar |
Cui, W. C. (2003). Impacts of the desertification on the agricultural production in the oases at the lower reaches of Tarim River, Xinjiang. Aridzone Research 2, 114–116.
Evans, J., and Geerken, R. (2004). Discrimination between climate and human-induced dry vegetation degradation. Journal of Arid Environments 57, 535–554.
| Discrimination between climate and human-induced dry vegetation degradation.Crossref | GoogleScholarGoogle Scholar |
Haberl, H. (1997). Human appropriation of net primary production as an environmental indicator: implications for sustainable development. Ambio 6, 143–146.
Hanafi, A., and Jauffret, S. (2008). Are long-term vegetation dynamics useful in monitoring and assessing desertification processes in the arid steppe, southern Tunisia. Journal of Arid Environments 72, 557–572.
| Are long-term vegetation dynamics useful in monitoring and assessing desertification processes in the arid steppe, southern Tunisia.Crossref | GoogleScholarGoogle Scholar |
Imhoff, M. L., Bounoua, L., DeFries, R., Lawrence, W. T., Stutzer, D., Tucker, C. J., and Ricketts, T. (2004). The consequences of urban land transformation on net primary productivity in the United States. Remote Sensing of Environment 89, 434–443.
| The consequences of urban land transformation on net primary productivity in the United States.Crossref | GoogleScholarGoogle Scholar |
Jia, B., Ci, L., Gao, Z., and Zhang, H. (2003). The quantitative analysis of effect factors on sandy desertification in Ordos plateau. Journal of Forest Science 36, 15–20.
Jiang, Z. R., An, L., and Chai, C. W. (2008). Quantitative research on influencing factors of desertification in Minqin County, Gansu Province. Journal of Desert Research 28, 35–38.
Lamprey, H. (1975). Report on the desert encroachment reconnaissance in Northern Sudan Khartoum. National Council for Research/Ministry of Agriculture, Food and Natural Resources, Sudan, p. 16.
Li, Z. F., and Wang, Y. L. (2004). Research of land use change in Dingbian County, Shanxi Province, China. Arid Land Geography 27, 520–524.
Li, X. Y., Wang, L. X., Zhang, Y. S., and Ma, Y. J. (2004). Contribution degrees of the desertification driving factors of the green corridor in the lower of Tarim Riverwatershed. Journal of Arid Land Resources and Environment 18, 44–49.
Li, S, Zheng, Y, Luo, P, Wang, X, Li, H, and Lin, P (2007). Desertification in western Hainan Island, China. Vegetation Degradation & Development 18, 473–485.
| 1:CAS:528:DC%2BD1cXisFOqsLY%3D&md5=4af32917b93193511a4673b6e0c3991bCAS |
Li, S., Yang, S., Liu, X., Liu, Y., and Shi, M. (2015). NDVI-based analysis on the influence of climate change and human activities on vegetation restoration in the Shaanxi-Gansu-Ningxia region, Central China. Remote Sensing 7, 11163–11182.
| NDVI-based analysis on the influence of climate change and human activities on vegetation restoration in the Shaanxi-Gansu-Ningxia region, Central China.Crossref | GoogleScholarGoogle Scholar |
Lieth, H. (1975). Modeling the primary production of the world. In: ‘Primary Productivity of the Biosphere’. (Eds H. Lieth and R. H. Whittaker.) pp. 237–263. (Springer: Berlin, Germany.)
Lieth, H., and Box, E. (1972). Evapotranspiration and primary productivity. Publications in Climatology 25, 37–46.
Lin, P. S., Li, S., Li, B. S., and Zheng, Y. H. (2005). Correlativity between land desertification and climate variability in west of Hainan Island during past nearly 20 years. Journal of Desert Research 25, 27–32.
Liu, L., Cheng, N. S., and Tian, L. Q. (2010). The climate change and its influences on ecosystem environment for the last 37 years in heavenly pond in Tianshan of Xinjiang. Journal of Arid Land Resources and Environment 10, 87–91.
Liu, S. L., Wang, T., Kang, W. P., and David, M. (2015). Several challenges in monitoring and assessing desertification. Environmental Earth Sciences 73, 7561–7570.
| Several challenges in monitoring and assessing desertification.Crossref | GoogleScholarGoogle Scholar |
Ma, Y. H., Fan, S. Y., Zhou, L. H., Dong, Z. Y., Zhang, K. C., and Feng, J. M. (2007). The temporal change of driving factors during the course of land desertification in arid region of North China: the case of Minqin County. Environmental Geology 51, 999–1008.
| The temporal change of driving factors during the course of land desertification in arid region of North China: the case of Minqin County.Crossref | GoogleScholarGoogle Scholar |
Miao, L. J., Jiang, C., Xue, B. L., Liu, Q., He, B., Nath, R., and Cui, X. F. (2015). Vegetation dynamics and factor analysis in arid and semi-arid Inner Mongolia. Environmental Earth Sciences 73, 2343–2352.
| Vegetation dynamics and factor analysis in arid and semi-arid Inner Mongolia.Crossref | GoogleScholarGoogle Scholar |
Miao, Y., Jin, H., and Cui, J. (2016). Human activity accelerating the rapid desertification of the Mu Us Sandy lands, North China. Scientific Reports 6, 1–6.
| 1:CAS:528:DC%2BC2sXlslGks74%3D&md5=93f5bca5ba0047bf668a85a547cf0ef1CAS |
Mu, S. J., Yang, H. F., Li, J. L., Chen, Y. Z., Gang, C. C., Zhou, W., and Ju, W. (2013). Spatio-temporal dynamics of vegetation coverage and its relationship with climate factors in Inner Mongolia, China. Journal of Geographical Sciences 23, 231–246.
| Spatio-temporal dynamics of vegetation coverage and its relationship with climate factors in Inner Mongolia, China.Crossref | GoogleScholarGoogle Scholar |
Nicholson, S. (2005). On the question of the ‘recovery’ of the rains in the West African Sahel. Journal of Arid Environments 63, 615–641.
| On the question of the ‘recovery’ of the rains in the West African Sahel.Crossref | GoogleScholarGoogle Scholar |
Potter, C. S., Randerson, J. T., Field, C. B., Matson, P. A., Vitousek, P. M., Mooney, H. A., and Klooster, S. A. (1993). Terrestrial ecosystem production: a process model based on global satellite and surface data. Global Biogeochemical Cycles 7, 811–841.
| Terrestrial ecosystem production: a process model based on global satellite and surface data.Crossref | GoogleScholarGoogle Scholar |
Prince, S. D., Brown de Colstoun, E., and Kravitz, L. (1998). Evidence from rain use efficiencies does not support extensive Sahelian desertification. Global Change Biology 4, 359–374.
| Evidence from rain use efficiencies does not support extensive Sahelian desertification.Crossref | GoogleScholarGoogle Scholar |
Prince, S. D., Becker-Reshef, I., and Rishmawi, K. (2009). Detection and mapping of long-term vegetation degradation using local net production scaling: application to Zimbabwe. Remote Sensing of Environment 113, 1046–1057.
| Detection and mapping of long-term vegetation degradation using local net production scaling: application to Zimbabwe.Crossref | GoogleScholarGoogle Scholar |
Shi, Y. F., Shen, Y. P., Kang, E., Li, D. L., Ding, Y. J., Zhang, G. W., and Hu, R. J. (2007). Recent and future climate change in northwest China. Climatic Change 80, 379–393.
| Recent and future climate change in northwest China.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD2sXps1Wmsg%3D%3D&md5=dfe13e33e63fee0c322555016eb8d4acCAS |
Sun, W., and Li, B. (2002). The relation between coupling among the principal components of desertification factors and desertification in rear hills of Bashang since 1950. Geographical Research 21, 392–397.
Tun, K. K. K., Shrestha, R. P., and Datta, A. (2015). Assessment of land degradation and its impact on crop production in the Dry Zone of Myanmar. International Journal of Sustainable Development and World Ecology 22, 533–544.
| Assessment of land degradation and its impact on crop production in the Dry Zone of Myanmar.Crossref | GoogleScholarGoogle Scholar |
UNCCD (1994) United Nations convention to combat desertification in countries experiencing serious drought and/or desertification particularly in Africa. United Nations, New York.
Vitousek, P. M., Ehrlich, P. R., and Ehrlich, A. H. (1986). Human appropriation of the products of photosynthesis. Bioscience 36, 368–373.
| Human appropriation of the products of photosynthesis.Crossref | GoogleScholarGoogle Scholar |
Wang, T., and Zhu, Z. (2001). Some problems of desertification in northern China. Quaternary Sciences 21, 56–65.
Wang, T., Li, X., and Ha, S. L. Q. (1991). A preliminary research on present land desertification in Bashang Plateau, Hebei Province. Journal of Desert Research 11, 39–45.
Wang, T., Wu, W., Xue, X., Sun, Q., Zhang, W., and Han, Z. (2004). Spatial-temporal changes of sandy desertified land during last 5 decades in north China. Acta Geographica Sinica 59, 203–212.
Wang, X., Chen, F. H., Dong, Z., and Xia, D. (2005). Evolution of the southern Mu Us Desert in North China over the past 50 years: an analysis using proxies of human activity and climate parameters. Vegetation Degradation and Development 16, 351–366.
| Evolution of the southern Mu Us Desert in North China over the past 50 years: an analysis using proxies of human activity and climate parameters.Crossref | GoogleScholarGoogle Scholar |
Wang, X. M., Chen, H. F., and Hasi, E. D. (2008). Desertification in China: an assessment. Earth-Science Reviews 88, 188–206.
| Desertification in China: an assessment.Crossref | GoogleScholarGoogle Scholar |
Wang, T., Sun, J. G., Han, H., and Yan, C. Z. (2012). The relative role of climate change and human activities in the desertification process in Yulin region of northwest China. Environmental Monitoring and Assessment 184, 7165–7173.
| The relative role of climate change and human activities in the desertification process in Yulin region of northwest China.Crossref | GoogleScholarGoogle Scholar |
Wessels, K. J., Prince, S. D., Malherbe, J., Small, J., Frost, P. E., and VanZyl, D. (2007). Can human-induced vegetation degradation be distinguished from the effects of rainfall variability? A case research in South Africa. Journal of Arid Environments 68, 271–297.
| Can human-induced vegetation degradation be distinguished from the effects of rainfall variability? A case research in South Africa.Crossref | GoogleScholarGoogle Scholar |
Wessels, K. J., Prince, S. D., and Reshef, I. (2008). Mapping vegetation degradation by comparison of vegetation production to spatially derived estimates of potential production. Journal of Arid Environments 72, 1940–1949.
| Mapping vegetation degradation by comparison of vegetation production to spatially derived estimates of potential production.Crossref | GoogleScholarGoogle Scholar |
Wrbka, T., Erb, K. H., Schulz, N. B., Peterseil, J., Hahn, C., and Haberl, H. (2004). Linking pattern and process in cultural landscapes. An empirical research based on spatially explicit indicators. Land Use Policy 21, 289–306.
| Linking pattern and process in cultural landscapes. An empirical research based on spatially explicit indicators.Crossref | GoogleScholarGoogle Scholar |
Wright, D. H. (1990). Human impacts on the energy flow through natural ecosystems, and implications for species endangerment. Ambio 19, 189–194.
Xu, G. Q., and Wei, W. S. (2004). Climate change of Xinjiang and its impact on eco-environment. Arid Zone Geography 1, 14–18.
Xu, J. T., Yin, R. S., Li, Z., and Liu, C. (2006). China’s ecological rehabilitation: Unprecedented efforts, dramatic impacts, and requisite policies. Ecological Economics 57, 595–607.
| China’s ecological rehabilitation: Unprecedented efforts, dramatic impacts, and requisite policies.Crossref | GoogleScholarGoogle Scholar |
Xu, D. Y., Kang, X. W., Zhuang, D. F., and Pan, J. J. (2010). Multi-scale quantitative assessment of the relative roles of climate change and human activities in desertification – A case research of the Ordos Plateau, China. Journal of Arid Environments 74, 498–507.
| Multi-scale quantitative assessment of the relative roles of climate change and human activities in desertification – A case research of the Ordos Plateau, China.Crossref | GoogleScholarGoogle Scholar |
Yu, D. Y., Shao, H. B., Shi, P. J., Zhu, W. Q., and Pan, Y. Z. (2009). How does the conversion of land cover to urban use affect net primary productivity? A case research in Shenzhen city, China. Agricultural and Forest Meteorology 149, 2054–2060.
| How does the conversion of land cover to urban use affect net primary productivity? A case research in Shenzhen city, China.Crossref | GoogleScholarGoogle Scholar |
Yu, D. Y., Shi, P. J., Han, G. Y., Zhu, W. Q., Du, S. Q., and Xun, B. (2011). Forest ecosystem restoration due to a national conservation plan in China. Ecological Engineering 37, 1387–1397.
| Forest ecosystem restoration due to a national conservation plan in China.Crossref | GoogleScholarGoogle Scholar |
Zhang, H., Wu, J. W., Zheng, Q. H., and Yu, Y. J. (2003). A preliminary research of oasis evolution in the Tarim Basin, Xinjiang, China. Journal of Arid Environments 55, 545–553.
| A preliminary research of oasis evolution in the Tarim Basin, Xinjiang, China.Crossref | GoogleScholarGoogle Scholar |
Zhang, R., Ouyang, Z. T., Xie, X., et al (2016). Impact of climate change on vegetation growth in arid Northwest of China from 1982 to 2011. Remote Sensing 8, 1–14.
Zhao, H. L., Zhao, X. Y., Zhou, R. L., Zhang, T. H., and Drake, S. (2005). Desertification processes due to heavy grazing in sandy rangeland, Inner Mongolia. Journal of Arid Environments 62, 309–319.
| Desertification processes due to heavy grazing in sandy rangeland, Inner Mongolia.Crossref | GoogleScholarGoogle Scholar |
Zhou, H. S., Shen, J. J., Jiang, Y., and Li, T. B. (2002). Desertification distribution, dynamic and influence on the ecological environment in Western China. Journal of Desert Research 2, 112–117.
| 1:CAS:528:DC%2BD38Xmtlahu70%3D&md5=f044e4e561540f6ac1052043f8bec770CAS |
Zhou, Y. M., Wang, J. H., Ma, A. Q., Qi, Y., and Ba, Y. (2003). Research on land use dynamics based on RS and GIS in Linze County, Gansu Province, China. Journal of Desert Research 23, 142–146.
Zhu, W. Q., Pan, Y. Z., and Zhang, J. S. (2007). Estimation of net primary productivity of Chinese terrestrial vegetation based on remote sensing. Acta Phytoecologica Sinica 31, 413–424.
| Estimation of net primary productivity of Chinese terrestrial vegetation based on remote sensing.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD2sXpsVGisrg%3D&md5=ff197203b96364a5546b5a1abd2ae023CAS |
