red soil hill region; farmland degradation; fertility cultivation of large soil aggregate; ecological restoration; soil pollution remediation; ecological recycling agriculture model
The degradation problems of soil erosion, soil acidification, soil fertility attenuation, soil heavy metal pollution, and seasonal drought in the red soil hilly region of Southeast China have resulted in the degradation of the red soil ecosystem and the decline of the land productivity, which restricts the sustainable development of regional agriculture. Since the establishment of Yingtan Red Soil Ecological Experiment Station in 1985, the long-term observation and ecological basic research of red soil ecosystems have been carried out, the application research and demonstration have been implemented on soil degradation and restoration, soil quality evolution and improvement, nutrient cycling and efficient utilization, soil pollution and remediation, and ecological agriculture model and regional development strategy in red soil hilly region. For the red soil development, it was found that the process of modern desilication and realuminizing was continuing, and the natural soil acidification rate in the small watershed was low. For the accelerated acidification of red soil under agricultural utilization, the new methods of inhibiting proton production and improving acid resistance capacity were developed, the new aluminum-tolerant plant resources are excavated, and the molecular biology mechanisms for plant aluminum-resistance was revealed. The multi-scale methods for soil erosion monitoring were established, the spatial distribution of soil erodibility factor was mapped, the development mechanisms of soil erosion and slope collapse in the red soil region were identified, and the development-management model for red soil erosion control was established. The occurrence regularity of seasonal drought in red soil region was found out, the mechanism of pore formation and the hydrologic flux at different scales were revealed, a high precision remote data collection system for soil moisture status was developed, and a high efficient and water-saving agricultural model in the low-hilly red soil region was established. For heavy metal and rare earth element, the prediction models for migration in soil-crop systems were established, the safety threshold values for red soil and paddy soil were put forward, and the remediation technology system for heavy metal polluted red soil and paddy soil was integrated. The changes of soil fertility and nutrient balance in red soil region were investigated and mapped, the driving mechanism of biological network for carbon and nitrogen turnover in red soils was revealed, and the principle for biological fertility cultivation of large soil aggregate was put forward. The modern high efficient agricultural technology system for farmland conservation in Jiangxi Province was established, and the ecological recycling agriculture model for integrated governance of "mountain-water-farmland-forest-lake-grass" system was developed at the small watershed scale in red soil region, which made a great contribution to the farmland quality development, the ecological environment protection, and the development of a new generation of ecological recycling agriculture in red soil region.
Bulletin of Chinese Academy of Sciences
赵其国.开拓资源优势, 创新研发潜力, 为我国南方红壤地区社会经济发展作贡献——纪念鹰潭红壤生态实验站建站30周年.土壤, 2015, 47(2):197-203.
Yang J-L, Zhang G-L, Huang L-M, et al. Estimating soil acidification rate at watershed scale based on the stoichiometric relations between silicon and base cations. Chemical Geology, 2013(337-338):30-37.
Xu R K, Qafoku N P, van Ranst E, et al. Adsorption properties of subtropical and tropical variable charge soils:Implications from climate change and biochar amendment. Advances in Agronomy, 2016, 135:1-58.
Shi R Y, Hong Z N, Li J Y, et al. Mechanisms for increasing the pH buffering capacity of an acidic Ultisol by crop straw derived biochars. Journal of Agricultural and Food Chemistry, 2017, 65:8111-8119.
Li J Y, Liu Z D, Masud M M, et al. Alkaline slag is more effective than phosphogypsum in the amelioration of subsoil acidity in an Ultisol profile. Soil and Tillage Research, 2015, 149:21-32.
Chen R F, Shen R F, Gu P, et al. Investigation of aluminum tolerance species in acid soils of South China. Communications in Soil Science and Plant Analysis, 2008, 39:1493-1506
Dong X Y, Shen R F, Chen R F, et al. Secretion of malate and citrate from roots is related to high Al-resistance in Lespedeza bicolor. Plant and Soil, 2008, 306:139-147.
Zhao X Q, Aizawa T, Schneider J, et al. Complete mitochondrial genome of the aluminum-tolerant fungus Rhodotorula taiwanensis RS1 and comparative analysis of Basidiomycota mitochondrial genomes. Microbiology Open, 2013, 2(2):308-317.
Hu Z M, Zhao X Q, Bao X M, et al. A potential contribution of the less negatively charged cell wall to the high aluminum tolerance of Rhodotorula taiwanensis RS1. Yeast, 2016, 33:575-586.
Zhao X Q, Shen R F. Aluminum-nitrogen interactions in the soil-plant system. Frontiers in Plant Science, 2018, 9: 807.
Shao J F, Che J, Chen R F, et al. Effect of in planta phosphorus on aluminum-induced inhibition of root elongation in wheat. Plant and Soil, 2015, 395:307-315.
Yuan J Q, Liang Y, Cao L X. Preliminary study on mechanicsbased rainfall kinetic energy. International Soil and Water Conservation Research, 2014, 2(3):67-73.
梁音, 刘宪春, 曹龙熹, 等.中国水蚀区土壤可蚀性 K值计算与宏观分布.中国水土保持, 2013, (10):35-40.
水利部, 中国科学院, 中国工程院.中国水土流失防治与生态安全:南方红壤区卷.北京:科学出版社, 2011.
Wang Y, Cao L, Fan J, et al. Modeling soil detachment of different management practices in the red soil region of China. Land Degradation & Development, 2017, 28:1496-1505.
顾亚兰, 梁音, 曹龙熹, 等.红黏土侵蚀劣地集水区植被恢复30年中的水沙特征.中国水土保持科学, 2017, 15(3):1-8.
赵其国, 张桃林, 鲁如坤, 等.我国东部红壤区土壤退化的时空变化、机理及调控对策.北京:科学出版社, 2002.
Zhou H, Mooney S J, Peng X H. Bimodal soil pore structure investigated by a combined soil water retention curve and X-ray Computed Tomography approach. Soil Science Society of America Journal, 2017, Doi: 10.2136/sssaj2016.10.0338.
Bottinelli N, Zhou H, Capowiez Y, et al. Earthworm burrowing activity of two non-Lumbricidae earthworm species incubated in soils with contrasting organic carbon content (Vertisol vs. Ultisol). Biology and Fertility of Soil, 2017, 53(8): 951-955.
Gao L, Lv Y J. Wang D D, et al. Can shallow-layer measurements at a single location be used to predict deep soil water storage at the slope scale? Journal of Hydrology, 2015, 531:534-542.
Gao L, Lv Y J. Wang D D, et al. Soil water storage prediction at high space-time resolution along an agricultural hill slope. Agricultural Water Management, 2016, 165:122-130.
Lv Y J, Gao L, Geris J, et al. Assessment of water sources and their contributions to streamflow by endmember mixing analysis in a subtropical mixed agricultural catchment. Agricultural Water Management, 2018, 203:411-422.
陈怀满. 土壤-植物系统中的重金属污染. 北京: 科学出版社, 1996.
Ding C, Ma Y, Li X, et al. Determination and validation of soil thresholds for cadmium based on food quality standard and health risk assessment. Science of the Total Environment, 2017, 619:700-706.
Ye X, Li H, Ma Y, et al. The bioaccumulation of Cd in rice grains in paddy soils as affected and predicted by soil properties. Journal of Soils and Sediments, 2014, 14:1407-1416.
Cheng J, Ding C, Li X, et al. Heavy metals in navel orange orchards of Xinfeng County and their transfer from soils tonavel oranges. Ecotoxicology and Environmental Safety, 2015, 122:153-158.
Huang G, Ding C, Guo F, et al. The Role of Node Restriction on Cadmium Accumulation in the Brown Rice of 12 Chinese Rice ( Oryza sativa L. ) Cultivars. Journal of Agricultural and Food Chemistry, 2017, 65: 10157-10164.
Guo F, Ding C, Zhou Z, et al. Stability of immobilization remediation of several amendments on cadmium contaminated soils as affected by simulated soil acidification. Ecotoxicology and Environmental Safety, 2018, 161:164-172.
Huang G, Ding C, Hu Z, et al. Topdressing iron fertilizer coupled with pre-immobilization in acidic paddy fields reduced cadmium uptake by rice ( Oryza sativa L. ). Science of the Total Environment 2018, 636: 1040-1047.
何园球, 孙波.红壤质量演变与调控.北京:科学出版社, 2008.
Zhao Y, Wang M, Hu S, et al., Economics-and policy-driven organic carbon input enhancement dominates soil organic carbon accumulation in Chinese croplands. Proceedings of the National Academy of Sciences of the United States of America, 2018, doi: 10.1073/pnas.1700292114.
Wang X, Sun B, Mao J, et al. Structural convergence of maize and wheat straw during two-year decomposition under different climate conditions. Environmental Science and Technology, 2012, 46:7159-7165.
Sun B, Wan X, Wang F, et al. Assessing the relative effects of geographic location and soil type on microbial communities associated with straw decomposition. Applied Environmental Microbiology, 2013, 79(11):3327-3335.
Lv M, Li Z, Che Y, et al. Soil organic C, nutrients, microbial biomass, and grain yield of rice ( Oryza sativa L.) after 18 years of fertilizer application to an infertile paddy soil. Biology and Fertility of Soils, 2011, 47(7):777-783.
Jiang Y, Sun B, Li H, et al. Aggregate-related changes in network patterns of nematodes and ammonia oxidizersin an acidic soil. Soil Biology and Biochemistry, 2015, 88:101-109.
Jiang Y, Liu M, Zhang J, et al. Nematode grazing promotes bacterial community dynamics in soil at the aggregate level. The ISME Journal, 2017, 11(12):2705-2717.
Liang Y, Jiang Y, Wang F, et al. Long-term soil transplant simulating climate change with latitude significantly alters microbial temporal turnover. The ISME Journal, 2015, 9:2561-2572.
Bo, SUN; Yin, LIANG; Renkou, XU; Xinhua, PENG; Xingxiang, WANG; Jing, ZHOU; Zhongpei, LI; and Xueqiang, ZHAO
"Long-term Research on Red Soil Degradation and Remediation Promotes Development of Ecological Recycling Agriculture in Hilly Region of Southeast China,"
Bulletin of Chinese Academy of Sciences (Chinese Version): Vol. 33
, Article 15.
Available at: https://bulletinofcas.researchcommons.org/journal/vol33/iss7/15