[Guan, S.Y. 1986. Soil enzyme and research technology. Beijing, China Agriculture Press, 62-142. (In Chinese).]Search in Google Scholar
[Hong, C.L, Wei, Y.Z., Huang, J.F., Wang, R., Yang, X. 2003. Effects of total crop straw return on soil fertility and fi eld ecological environment. - Journal of Zhejiang University (Agric. & Life Sci.), 29(6), 627-633. (In Chinese).]Search in Google Scholar
[Joshi, M., Bargali, K., Bargali, S.S. 1997. Changes in physico-chemical properties and metabolic activity of soil in poplar plantations replacing natural broad-leaved forests in Kumaun Himalaya. - Journal of Arid Environments, 35(1), 161-169.]Search in Google Scholar
[Kourtev, P.S, Ehrenfeld, J.G., Huang, W.Z. 2002. Enzyme activities during litter decomposition of two exotic and two native plant species in hardwood forests of New Jersey. - Soil Biology and Biochemistry, 34(9), 1207-1218.]Search in Google Scholar
[Li, S. 1993. Effect of fertility and activity of soil enzymes on legume. - Acta Pratacultural Science, 10(5), 20-23. (In Chinese with English abstract).]Search in Google Scholar
[Li, X.B., Ma, L., Chen, L., Xu, D.M., Xie, Y.Z. 2010. Research progress and the prospect of grassland litters decomposition. Ecology and Environmental Sciences, 19(9), 2260-2264.]Search in Google Scholar
[Li, Z., Liu, G.S, Jing, H.X., Ye, X.F., Xie, C.S., Xiang, Y.G., Zhang, W,P., Yang, C., Wang, Y., Xi, X.Y. 2011a. Effects of green manure application combined with chemical fertilizers on microbial biomass C, N and nitrogen supplying characteristics of tobacco-planting soils. - Acta Prataculturae Sinica, 20(6), 126-134. (In Chinese).]Search in Google Scholar
[Li, Z., Liu, G.S., Jing, H.X., Xie, C.S, Xiang, Y.G, Yang, C., Zheng, W.R., Ye, X.F. 2011b. Effects of green manure application on the microbial biomass C and N contents and of the enzyme activity of tobacco-planting soil. - Acta Prataculturae Sinica, 20(3), 225-232. (In Chinese).]Search in Google Scholar
[Li, Z.L. 2008. Study of Onobrychis viciaefolia and Medicago sativa on yield and soil fertility. - Acta Pratacultural Science, 25(7), 65-68. (In Chinese with English abstract).]Search in Google Scholar
[Liu, G.S., Li, Z., Jing, H.X., Ye, X.F., Shi, H.Z., Wang, Y., Yang, C., Chang, D. 2010. Effects of consecutive turnover of green manures on soilm icrobial biomass and enzyme activity. - Plant Nutrition and Fertilizer Science, 16(6), 1472-1478. (In Chinese with English abstract).]Search in Google Scholar
[Liu, S.Q., Pu, Y.L., Zhang, S.R., Wang, C., Deng, L. 2004. Spatial change and affecting factors of soil cation exchange capacity in Tibet. - Journal of Soil Water Conservation, 18(5), 1-5. (In Chinese with English abstract).]Search in Google Scholar
[Liu, Z.W., Duan, E.J, Liu, Z.M., Feng, S.Y. 2009. Soil polarization of pure forests in the semi-humid loess hilly area of North Shaanxi, China. - Acta Ecologica Sinica, 29(10), 5696-5707.]Search in Google Scholar
[Liu, Z.W., Duan, E.J., Fu, G., Cui, F.F, Gao, W.J. 2007. A new concept: soil polaziration in planted pure forest. - Acta Pedologica Sinica, 44(6), 1119-1126. (In Chinese).]Search in Google Scholar
[Lu, R.K. 1999. Methods for soil agricultural chemical analysis. Beijing, China Agricultural Science and Technology Press. (In Chinese).]Search in Google Scholar
[Nanjing Institute of Soil Science, Chinese Academy of Sciences. 1985. Analysis of soil microoganism. Beijing, Science Press. (In Chinese).]Search in Google Scholar
[Osono, T., Takeda, H. 2004. Potassium, calcium, and magnesium dynamics during litter decomposition in a cool temperate forest. - Journal of Forest Research, 9(1), 23-31.]Search in Google Scholar
[Pan, F., Lu, J., Liu, W., Geng, M., Li, X., Cao, W. 2011. Effect of different green manure application on soil fertility. - Plant Nutrition and Fertilizer Science, 17(6), 1359-1364. (In Chinese with English abstract).]Search in Google Scholar
[Qi, Z.M, Wang, K.Y., Song, G.Y., Yang, W.Q. 2004. Bio-chemical properties of the forest fl oor in subalpine bamboo communities in western Sichuan. - Acta Ecologica Sinica, 24(6), 1230-1236.]Search in Google Scholar
[Sun, Y., Zhao, X.H., He, W.X., Gao, Y.J., Cao, W.D. 2011. Effect of green manure on soil enzyme activity. - Acta Agriculturae Boreali-occidentalis Sinica, 20(3), 115-119. (In Chinese).]Search in Google Scholar
[Wang, D., Wang, B., Dai, W., Li, P. 2011a. Sensitivity analysis of variables correlated to soil organic matter in Chinese fi r plantations. - Journal of Beijing Forestry University, 33(1), 78-83. (In Chinese).]Search in Google Scholar
[Wang, F., Zhang, J.S., Gao, P.C. 2011b. Effects of application of different organic materials on soil microbiological properties and soil fertility in Weibei rainfed highland. - Plant Nutrition and Fertilizer Science, 17(3), 702-709. (In Chinese with English abstract).]Search in Google Scholar
[Wang, J., Jin, Z.X. 2006. Effect of drought-enduring herbage-little crest grass on the fertility improvement of grey brown desert soil in Heihe Valley. - Chinese Journal of Soil Science, 37(3), 487-489. (In Chinese).]Search in Google Scholar
[Wang, X.L., Yan, X.D., Xu, Y.P. 2012. The decomposition rule of covered soybean green manure and its effect on soil nutrient content. - Chinese Soil and Fertilizer, 5, 57-60.]Search in Google Scholar
[Zhang, D.,Yao, P., Li, J., Zhao, N., Wang, Z., Yu, C., Cao, Q., Cao, W., Gao, Y. 2013. Effects of two years’ incorporation of leguminous green manure on soil properties of a wheat fi eld in dryland conditions. - Acta Ecologica Sinica, 33(7), 2272-2281.]Search in Google Scholar
[Zhang, L.P., Zhang, X.C., Liu, Z.W., Sun, Q., Wang, S.B., Sun, H.Y., Yu, W.F., Liu, Y.J. 2008. Effect of plantation litter decomposition on soil properties. - Journal of Northwest A&F University, 36(9), 87-92.]Search in Google Scholar
[Zhang, Q., Cai, C.F. 2004. Forest soil degradation research and preventive strategy: a review. - Ecology and Environment, 13(04), 677-680.]Search in Google Scholar
[Zhang, X.H., Xu, B.C., Li, F.M. 2008. Nutrient equilibrium and distribution along soil profi le of three legumes on highland Loess Plateau Chinese. - Journal of Eco-Agriculture, 16(4), 810-817. (In Chinese).10.3724/SP.J.1011.2008.00810]Search in Google Scholar
[Zhao, N., Zhao, H.B., Yu, C.W., Cao, Q.H., Li, M., Cao, W.D., Gao, Y.J. 2011. Nutrient releases of leguminous green manures in rainfed lands. - Plant Nutrition and Fertilizer Science, 17(5), 1179-1187. (In Chinese with English abstract). ]Search in Google Scholar