Soil erosion is a significant factor in the deterioration of the ecological environment and soil conservation is an important ecological service of National Key Ecological Function Areas in China. Here, climate, terrain, soil and vegetation cover, soil erosion and soil conservation spatial data in 25 National Key Ecological Function Areas in 2010 were analyzed using the Universal Soil Loss Equation by ArcGIS tool. We found that soil conservation effects due to vegetation cover and soil conservation measures are obvious and that micro and slight erosion areas in National Key Ecological Function Areas have increased by 26.2%. The area of intensive erosion decreased by 25.1%, and the soil conservation amount in southern National Key Ecological Function Areas is high. The conservation amount of soil nutrients within National Key Ecological Function Areas is related to amount of soil conservation and content of each nutrient element in soil. The sequence of nutrient conservation amounts from high to low is soil organic carbon, total K, total N and total P in soil. The conservation amount of various soil nutrient elements in the Alkin Grassland function area and Yunnan and Sichuan function area was highest. Based on our findings, we recommend the strengthening of vegetation protection and management in the areas with high per unit area soil erosion, enhancement of vegetation cover and improvement of soil conservation measures in order to improve soil conservation functions and reduce soil nutrient losses. Vegetation protection and soil conservation measures should be consolidated in the areas with high potential erosion to prevent further deterioration.
Zhang Caixia, Zhang Leiming, LI Shimei, Zhang changshun
. Soil Conservation of National Key Ecological Function Areas[J]. Journal of Resources and Ecology, 2015
, 6(6)
: 397
-404
.
DOI: 10.5814/j.issn.1674-764x.2015.06.007
[1] Bailey R G. 1976. Ecoregions of the United States. Ogden, UT: USDA Forest Service.
[2] Cai C F, Ding S W, Shi Z H, et al. 2000. Study of applying USLE and geographical information system IDRISI to predict soil erosion in small watershed. Journal of Soil and Water Conservation, 14(2): 19-24. (in Chinese)
[3] Cao W H, Liu G B, Lu S L, et al. 2013. Recent progress and Prospect of water and soil conservation science and technology in China. Soil and Water Conservation in China, 05: 14-18. (in Chinese)
[4] Fan C. 2014. Analysis of the landscape pattern changes and ecological security of national key ecological function areas. Jiangxi: Jiangxi Normal University. (in Chinese)
[5] Geng H P, Pan B T, Wang C, et al. 2009. Soil erosion of Yuzhong County based on GIS and RS. Journal of Lanzhou University (Natural Sciences), 45(6): 8-13. (in Chinese)
[6] He S J, Xie J S, Yang Z J, et al. 2011. Status, causes and prevention of soil and water loss in Pinus massoniana woodland in hilly red soil region of southern China. Science of Soil and Water Conservation, 9(6): 65-70. (in Chinese)
[7] He W J, Qin S, An M. 2015. The transfer payment policy shortcomings and improvement measures in National key ecological function areas — A case study of some counties and cities in Wuling Mountain Area (Hunan). Hubei Social Sciences, 04: 67-72. (in Chinese)
[8] Huang L, Cao W, Wu D, et al. 2015. Assessment on the changing conditions of ecosystems in key ecological function regions in China. Chinese Journal of Applied Ecology, 26(9): 2758-2766. (in Chinese)
[9] Jiang C L, Zhang L J, Zhang H W, et al. 2015. Evaluation of soil retention based on RUSLE model during 2000-2010 in Heilongjiang Province. Chinese Journal of Eco-Agriculture, (5): 642-649. (in Chinese)
[10] Li B L, YuanY C, Gao X Z, et al. 2014c. Major issues and countermeasures of eco-environmental protection of the national key ecological function areas. Environmental Protection, 42(12): 15-18. (in Chinese)
[11] Li G P, Li X, Wang H Z. 2013. Analysis of the ecological compensation of the transfer payment in the national key ecological function area. Modern Economic Science, 35(5): 58-64+126. (in Chinese)
[12] Li G P, Li X. 2014. Allocation mechanism of national key ecological function area’s transfer payment. China Population, Resources and Environment, 24(5): 124-130. (in Chinese)
[13] Li G P, Liu Q, Zhang W B. 2014a. Transfer payment system in the national key ecological function area and the ecological environmental quality — Empirical study based on the countryside data of Shaanxi Province. Journal of Xi’an Jiaotong University (Social Sciences), 34(2): 27-31. (in Chinese)
[14] Li G P, Wang H Z, Liu Q. 2014b. The dual objectives and performance evaluation of transfer payment in national key ecological function areas. Journal of Northwest University (Philosophy and Social Sciences Edition), 44(1): 151-155. (in Chinese)
[15] Li R. 2011. Research into soil erosion processes and control in major water erosion regions of China. Bulletin of Soil and Water Conservation, 31(5): 1-6. (in Chinese)
[16] Liu X, Wang Y Q. 2014. Analysis of current research on key ecological function zones in China. World Forestry Research, 27(1): 93-96. (in Chinese)
[17] Ma C F, Ma J W, Buhe A. 2001. Quantitative assessment of vegetation coverage factor in USLE model using remote sensing data. Bulletin of Soil and Water Conservation, 21(4): 6-9. (in Chinese)
[18] Meng Q H. 2014. Analysis of ecological carrying capacity of national key ecological function areas in Hunshandake based on ecological footprints. Forest Resources Management, (1): 127-130+139. (in Chinese)
[19] Ministry of Environmental Protection of the People’s Republic of China, Development and Reform Commission, Ministry of Finance. 2013. Opinion on strengthening environmental protection and management of the national key ecological function areas. http://www.zhb.gov.cn/gkml/hbb/bwj/201302/t20130201_245861.htm. (in Chinese)
[20] Oldeman L R. 1994. The global extent of soil degradation. In: Greenland D J, I Szabolcs (Eds). Soil Resilience and Sustainable Land Use. CAB International, Wallingford, UK, 99-118.
[21] Van Remortel R D, R W Maichle, R J Hickey. 2001. Estimating the LS factor for RUSLE through iterative slope length processing of digital of digital elevation data. Cartography, 30(1): 27-35.
[22] Williams J R, J G Arnold. 1997. A system of erosion-sediment yield models. Soil Technology, 11(1): 43-55.
[23] Wu Y P, Xie Y, Zhang W B. 2011. Comparison of different methods for estimating average annual Ra infall erosivity. Journal of Soil and Water Conservation, 15(3): 31-34. (in Chinese)
[24] Xiao Y, Ouyang Z Y, Xu W H et al. 2015. Spatial analysis of soil erosion and soil conservation in Chongqing based on GIS. Acta Ecologica Sinica, 35(21). http://www.cnki.net/kcms/detail/11.2031.Q.20150414.1614.013.html. (in Chinese)
[25] Xu X Z, LiM J, LiuB, et al. 2012. Quantifying the effects of conservation practices on soil, water, and nutrients in the Loess Mesa Ravine Region of the Loess Plateau, China. Environmental Management, 49: 1092-1101.
[26] Yu B, C J Rosewell. 1996. An assessment of a daily rainfall erosivity model for New South Wales. Australian Journal of Soil Research, 34(1): 139-152.
[27] Zhang W B, Li G P. 2015. Dynamic Incentive Effect Analysis of Transfer Payment in National Key Ecological Function Zone. China Population, Resources and Environment, 25(10). http://www.cnki.net/kcms/detail/37.1196.N.20150928.1233.034.html. (in Chinese)
[28] Zhao C C, YangN G, ZhenW, et al. 2013. Benefit assessment of soil and water conservation from cropland to forest in hilly Loess Plateau at Qinghai. Springer Plus, 2 (Suppl 1): S7.
[29] Zhong D N. 2014. Research on the dilemma of financial transfer payment system in the construction of national key ecological function areas in China. Journal of Southwest University for Nationalities (Humanities and Social Science), 35(4): 122-126. (in Chinese)
[30] Zhou P, Wen A B, Zhang X B, et al. 2013. Soil conservation and sustainable eco-environment in the Loess Plateau of China. Environmental Earth Sciences, 68(3): 633-639.
