作者： Duan, Liangxia;Sheng, Hao;Yuan, Hong;Zhou, Qing;Li, Zhenwei*

期刊： Geoderma,2021年389:114953 ISSN：0016-7061

通讯作者： Li, Zhenwei

作者机构： [Zhou, Qing; Yuan, Hong; Sheng, Hao; Duan, Liangxia] Hunan Agr Univ, Coll Resources & Environm, Changsha 410128, Peoples R China.;[Li, Zhenwei] Chinese Acad Sci, Inst Subtrop Agr, Key Lab Agroecol Proc Subtrop Reg, Changsha 410125, Peoples R China.

通讯机构： [Li, Zhenwei] C;Chinese Acad Sci, Inst Subtrop Agr, Key Lab Agroecol Proc Subtrop Reg, Changsha 410125, Peoples R China.

关键词： Granite;Le Bissonnais' method;Slate;Soil erosion;Yoder's method

摘要： Soil aggregate stability is one of the most important indicators of soil structure and soil degradation vulnerability, and it is the dominant factor controlling hillslope soil erosion in the subtropical Ultisols region of China. However, few studies have investigated the synergistic effects of land use conversion and lithology on soil aggregate stability, especially in subtropical Ultisols region of China where soil erosion is a serious concern. Soil samples from 0 to 100 cm depth at increments of 20 cm were collected from four typical land use types (natural forest, artificial forest, orchard, and cropland) and two lithologies (granite and slate) to determine soil aggregate stability using the Le Bissonnais' and Yoder' methods on Ultisols from subtropical China. Results indicated that both land use type and lithology significantly influenced the soil aggregate stability. Specifically, in different soil depths of 0–100 cm, land use changes from natural forest to orchard and cropland significantly decreased the aggregate stability, thus increasing soil erodibility. Following the conversion of natural forest to artificial forest generally enhanced soil stability and resistance to flowing water erosion. For lithology, the slate soil was more resistant to erosion than granite soil. The generalized linear model can explain >60% of the total variation in soil aggregate stability, and the effect of land use on aggregate stability was greater than lithology. Compared with the Yoder' wet-sieving method, the Le Bissonnais method was better at characterizing soil aggregate stability among land uses and lithology, and therefore should be considered as a preferred method in future studies in the subtropical Ultisols region of China. © 2021 Elsevier B.V.

语种： 英文

作者： Duan Liangxia;Li Zhenwei;Xie Hongxia;Yuan Hong;Li Zhiming;...

期刊： Land Degradation & Development,2020年31(16):2461-2474 ISSN：1085-3278

通讯作者： Zhou Qing

作者机构： [Zhou Qing; Duan Liangxia; Yuan Hong; Xie Hongxia] Hunan Agr Univ, Coll Resources & Environm, Changsha 410128, Peoples R China.;[Li Zhenwei] Chinese Acad Sci, Inst Subtrop Agr, Key Lab Agroecol Proc Subtrop Reg, Changsha, Peoples R China.;[Li Zhiming] Hunan Stn Soil & Fertilizer, Changsha, Peoples R China.

通讯机构： [Zhou Qing] H;Hunan Agr Univ, Coll Resources & Environm, Changsha 410128, Peoples R China.

关键词： cropland;geostatistics;REML;soil organic carbon density;spatial pattern

摘要： Understanding regional spatial pattern of soil organic carbon density (SOCD) and its potential influencing factors in cropland is of paramount importance when evaluating soil quality and assess the carbon sequestration potential. However, little information is available regarding the regional SOCD for the plough layer of the cropland soils with high-density sampling sites. In this context, 14,058 soil samples were collected at a regional scale (21 x 10(4) km(2)) to investigate the spatial variation in SOCD and to identify the dominant factors influencing this variation using classical statistics, principal component analysis (PCA), residual maximum likelihood (REML), and geostatistical methods, such as semivariogram and ordinary kriging methods. The results indicated that soil organic carbon (SOC) and SOCD both demonstrated moderate variability ranging from 2.61 to 35.67 g kg(-1) and 2.61 to 35.67 kg C m(-2), respectively. Geostatistical analysis showed that the nugget-to-sill ratios for SOC and SOCD were 0.59 and 0.61, respectively, which demonstrated moderate spatial dependence. The PCA and a minimum data set method identified that organic nitrogen fertilizer, accumulated temperature >= 0 degrees C, rice straw incorporation, precipitation, and soil pH were the major factors affecting the spatial variability in SOCD. The REML analysis showed that geomorphologic features, soil types, and irrigation conditions also exerted substantial influence on SOC and SOCD. This study provided reliable estimates of spatial variation in SOCD and thus is helpful in the formulation of strategic sustainable SOC management and regional policy decision making.

语种： 英文

作者： Duan, Liangxia;Li, Zhenwei;Xie, Hongxia;Li, Zhiming;Zhang, Liang;...

期刊： CATENA,2020年188:104350 ISSN：0341-8162

通讯作者： Zhou, Qing

作者机构： [Xie, Hongxia; Zhou, Qing; Zhang, Liang; Duan, Liangxia] Hunan Agr Univ, Coll Resources & Environm, Changsha 410128, Peoples R China.;[Li, Zhenwei] Chinese Acad Sci, Inst Subtrop Agr, Key Lab Agroecol Proc Subtrop Reg, Changsha 410125, Peoples R China.;[Li, Zhiming] Hunan Stn Soil & Fertilizer, Changsha 410005, Peoples R China.

通讯机构： [Zhou, Qing] H;Hunan Agr Univ, Coll Resources & Environm, Changsha 410128, Peoples R China.

关键词： Geostatistics;Interpolation;Rice fields;Soil chemical properties;Spatial variation

摘要： Rice is one of the most important crops in the world. It provides food for 40% of the world's population and 60% of China's population. Soil nutrients have a significant impact on both agriculture and the environment, particularly with regards to soil fertility, soil quality, and rice production. However, minimal research has been conducted to address spatial patterns of soil nutrients at a large scale within paddy fields. This information is crucial for improving not only soil nutrient management, but also rice yields. Soil surface samples (0–20 cm of plough depth, totalling 8890) were collected from paddy fields to determine the spatial variability of eight soil chemical properties (soil organic carbon (SOC), total nitrogen (TN), available N (AN), total phosphorus (TP), available P (AP), total potassium (TK), rapidly available K (RAK), and slowly available K (SAK)). Inverse distance weighting (IDW) and ordinary kriging methods were applied to produce a continuous soil nutrient surface. Results indicated that soil chemical properties vary substantially. Paddy fields were characterized by high mean concentrations of SOC (19.7 g kg−1), TN (1.91 g kg−1), and AN (164.7 mg kg−1), implying that no additional C and N fertilizer was needed in regions with high SOC and N. SAK and AP demonstrated moderate (36.9%) and weak (96.2%) spatial dependence, respectively, while strong spatial dependence (10.1–13.5%) was observed across the remaining six soil chemical properties. Regional distribution maps of soil chemical properties were produced and ordinary kriging methods interpolated more accurately than the IDW method. © 2019 Elsevier B.V.

语种： 英文

作者： Luo, Lanhua;Zhou, Qing;He, Hong S.;Duan, Liangxia;Zhang, Gaoling;...

期刊： Sustainability,2020年12(16) ISSN：2071-1050

通讯作者： Xie, Hongxia

作者机构： [Zhou, Qing; Xie, Hongxia; Luo, Lanhua; Zhang, Gaoling; Duan, Liangxia] Hunan Agr Univ, Coll Resources & Environm, Changsha 410128, Peoples R China.;[Luo, Lanhua] Nanjing Normal Univ, Key Lab Virtual Geog Environm, Minist Educ, Nanjing 210023, Peoples R China.;[He, Hong S.] Univ Missouri, Sch Nat Resources, Columbia, MO 65211 USA.

通讯机构： [Xie, Hongxia] H;Hunan Agr Univ, Coll Resources & Environm, Changsha 410128, Peoples R China.

关键词： land use change;runoff;climate change;SWAT model

摘要： Quantitative assessment of the impact of land use and climate change on hydrological processes is of great importance to water resources planning and management. The main objective of this study was to quantitatively assess the response of runoff to land use and climate change in the Zhengshui River Basin of Southern China, a heavily used agricultural basin. The Soil and Water Assessment Tool (SWAT) was used to simulate the river runoff for the Zhengshui River Basin. Specifically, a soil database was constructed based on field work and laboratory experiments as input data for the SWAT model. Following SWAT calibration, simulated results were compared with observed runoff data for the period 2006 to 2013. The Nash-Sutcliffe Efficiency Coefficient (NSE) and the correlation coefficient (R-2) for the comparisons were greater than 0.80, indicating close agreement. The calibrated models were applied to simulate monthly runoff in 1990 and 2010 for four scenarios with different land use and climate conditions. Climate change played a dominant role affecting runoff of this basin, with climate change decreasing simulated runoff by -100.22% in 2010 compared to that of 1990, land use change increasing runoff in this basin by 0.20% and the combination of climate change and land use change decreasing runoff by 60.8m(3)/s. The decrease of forestland area and the corresponding increase of developed land and cultivated land area led to the small increase in runoff associated with land use change. The influence of precipitation on runoff was greater than temperature. The soil database used to model runoff with the SWAT model for the basin was constructed using a combination of field investigation and laboratory experiments, and simulations of runoff based on that new soil database more closely matched observations of runoff than simulations based on the generic Harmonized World Soil Database (HWSD). This study may provide an important reference to guide management decisions for this and similar watersheds.

语种： 英文

作者： Yu, Zhan;Zhang, Yangzhu*;Sheng, Hao;Zhang, Liang;Zhou, Qing;...

期刊： Journal of Soils and Sediments,2020年20(3):1558-1570 ISSN：1439-0108

通讯作者： Zhang, Yangzhu

作者机构： [Zhou, Qing; Zhang, Liang; Sheng, Hao; Zhang, Yangzhu; Yu, Zhan] Hunan Agr Univ, Coll Resources & Environm, Changsha 410128, Hunan, Peoples R China.;[Yan, Xiong] Zunyi Normal Univ, Coll Resources & Environm, Zunyi 563006, Guizhou, Peoples R China.

通讯机构： [Zhang, Yangzhu] H;Hunan Agr Univ, Coll Resources & Environm, Changsha 410128, Hunan, Peoples R China.

关键词： Clay minerals;Hydragric horizon;Parent materials;Pedogenic environment;Soil group;Stagnic Anthrosols

摘要： Purpose: The aims of this study were to investigate the composition of clay minerals in soils derived from different parent materials and to elucidate how parent materials and pedogenic environment affect the distribution of clay minerals and reveal the implications for pedogenetics and taxonomy in Stagnic Anthrosols. Materials and methods: Clay mineralogy and physicochemical properties of the Hydragric horizon of Stagnic Anthrosols derived from granite (GR), plate shale (PS), quaternary red clays (QRC), limestone (LS), purple sandy shale (PSS) and fluvial-lacustrine deposit (FLD) located in Hunan Province of China were analysed to explore the relationships between the conditions influencing the formation of the soil and the composition of clay minerals. Results and discussion: Results indicated that the composition of clay minerals is closely related to both parent material and type of Stagnic Anthrosols: the soils derived from GR, PS and QRC, which are mostly classified as Fe-accumulic-Stagnic Anthrosols, are dominantly 1:1 type kaolinite and vermiculite and illite/vermiculite mixed layer minerals of widespread distribution. However, soils derived from LS, PSS and FLD were mainly classified as Hapli-Stagnic Anthrosols and are mainly composed of 2:1 type illite/smectite mixed layer minerals, where chlorite is commonly found. Illite is widely distributed and its content varies the least among different parent materials. An extremely significant relationship between pH and kaolinite, chlorite and mixed layer minerals was noted, and the two kinds of mixed layer minerals showed highly significant negative correlation. Conclusions: This study revealed that the types and quantities of clay minerals in the soil are closely related to the types of parent material. This reflected better direction and degree of development in Stagnic Anthrosols, which is related to the physicochemical properties of parent material and can be used as one of the bases for the classification of soil groups and subgroups within the soil family for Stagnic Anthrosols in Chinese Soil Taxonomy. © 2019, Springer-Verlag GmbH Germany, part of Springer Nature.

语种： 英文

作者： 阳宽达;谢红霞;隋兵;周清;刘沛;...

期刊： 水土保持研究,2020年27(03):134-138,145 ISSN：1005-3409

作者机构： 湖南农业大学资源环境学院,长沙410128;中南大学地球科学与信息物理学院,长沙410083;气象防灾减灾湖南省重点实验室,长沙410007;[刘沛; 阳宽达; 周清; 王海涛; 谢红霞] 湖南农业大学;[隋兵] 气象防灾减灾湖南省重点实验室

关键词： 普通克里金插值;协同克里金插值;降雨;插值精度

摘要： 降水数据是区域水文模拟、水资源分析和管理及地质灾害预警等方面的基础数据,提高降雨数据的插值精度具有重要的理论和现实意义。以湖南省为研究区,结合站点观测降雨数据、TRMM雷达降雨数据及DEM数据,采用克里金插值和协同克里金插值两种方法进行了降雨插值,通过对比研究降雨插值精度。结果表明:(1)引入与降雨空间信息相关的TRMM,DEM数据的协同克里金插值能够提高插值精度,以TRMM,DEM为辅助变量的协同克里金插值的平均相对误差较克里金插值降低了0.02%,0.23%;(2)降雨观测数据插值结果对于TRMM,DEM这两种协变量表现出不同的灵敏度,以DEM为协变量的克里金插值的插值精度要高于以TRMM为协变量的克里金插值,研究区的降雨量与地形因素有更高的相关性。

语种： 中文

作者： 薛毅;尹泽润;盛浩;马颢榴;周清;...

期刊： 环境科学,2020年41(4):1880-1887 ISSN：0250-3301

通讯作者： Sheng, Hao(shenghao82@hunau.edu.cn)

作者机构： [薛毅; 尹泽润; 盛浩; 马颢榴; 周清; 张杨珠] College of Resources and Environment, Hunan Agricultural University, Changsha;410128, China;[宋达清] Soil and Fertilizer Station of Zhuzhou County, Lukou;412000, China;[薛毅; 尹泽润; 盛浩; 马颢榴; 周清; 张杨珠] 410128, China

通讯机构： College of Resources and Environment, Hunan Agricultural University, Changsha, China

关键词： 土壤重金属;土壤Cd形态;潴育性水稻土;大田施肥试验;Cd污染耕地修复与治理

摘要： 商品有机肥由于可能含镉( Cd), 并在施入后对水稻土中Cd的有效性具有“抑制”和“激活”的双重作用,导致施有机肥的稻米降Cd效应目前仍存在较大不确定性.通过选取湘东地区典型水稻土(紫泥田土种), 连续4 a定位监测了大田施用商品有机肥对双季稻稻米的降Cd效应,探索稻米Cd含量与双季稻不同生育期土壤Cd有效性、土壤因子( pH、土壤活性有机碳组分与铁氧化物)的关系.结果表明,施有机肥降低双季稻糙米Cd含量28% ~ 56%,且晚稻糙米Cd含量降幅( 43% ~ 56%)高于早稻糙米Cd含量的降幅( 28%~ 45%), 降幅的年际波动小.一方面,施有机肥也导致双季稻某些生育期(分蘖盛期自齐穗期)土壤有效态Cd含量平均下降6%~ 7%;土壤交换态Cd含量降低11%,土壤有机结合态Cd含量提高14%,直接反映土壤Cd有效性的降低.另一方面,施有机肥也稳定提升土壤pH值0.1 ~ 0.3个单位,促进土壤环境由酸性向微酸性发展,土壤活性有机碳组分(轻组有机碳、粗颗粒有机碳和细颗粒有机碳)含量大幅提升( 53%、77%和107%), 间接反映土壤Cd有效性的降低.本研究表明,紫泥田连续施有机肥后,土壤Cd有效性下降是双季稻米Cd含量降低的关键驱动因素.

语种： 中文

作者： Duan, Liangxia;Xie, Hongxia;Li, Zhenwei;Yuan, Hong;Guo, Yadong;...

期刊： Agronomy Journal,2020年112(3):1502-1516 ISSN：0002-1962

通讯作者： Zhou, Qing

作者机构： [Xie, Hongxia; Zhou, Qing; Yuan, Hong; Guo, Yadong; Duan, Liangxia] Hunan Agr Univ, Coll Resources Environm, Changsha 410128, Peoples R China.;[Li, Zhenwei] Chinese Acad Sci, Inst Subtrop Agr, Key Lab Agroecol Proc Subtrop Reg, Changsha 410125, Peoples R China.;[Xiao, Xiang] Hunan Stn Soil & Fertilizer, Changsha 410005, Peoples R China.

通讯机构： [Zhou, Qing] H;Hunan Agr Univ, Coll Resources Environm, Changsha 410128, Peoples R China.

摘要： Identification of the dominant factors controlling rice (Oryza sativa L.) yield is of paramount importance to improve fertilizer use efficiency, effectively promote rice productivity, and help ensure food security. The objective of this study was to quantify the influence of geographic attributes, soil properties, climatic, and fertilizer types on annual rice yield and to identify the dominant control factors in southern China. In total, 2010 soil samples were collected in the selected areas and were analyzed for 34 factors that potentially influenced rice yield. Because these factors exhibit multicollinearity, partial least squares regression (PLSR) was used to elucidate the linkages between rice yield and the 34 measured variables. The first-order factors were identified by calculating the variable importance for the projection (VIP). The variables with high VIP values are the most relevant for explaining the dependent variables. Results indicated that the geographic attributes, climatic and fertilizer types exerted substantial influence on rice yield and explained 57 to 85% of the variation in rice yield. According to the VIP values, the following are the dominant first-order factors controlling rice yield: longitude, latitude, organic potassium fertilizer, accumulated temperature≥10°C, chemical potassium fertilizer, organic nitrogen fertilizer, straw incorporation, chemical nitrogen fertilizer, accumulated temperature≥0°C, and organic phosphate fertilizer. These results indicate that the PLSR approach is beneficial as it partially eliminates the correlation of the variables and reduces bias regarding the contribution of the factors to rice yield. This approach could be applied to other climatic zones or cropping systems. © 2020 The Authors. Agronomy Journal © 2020 American Society of Agronomy

语种： 英文

作者： 彭世清;欧阳宁相;张杨珠;盛浩;周清

期刊： 湖南农业大学学报(自然科学版),2020年46(06):723-732 ISSN：1007-1032

作者机构： 湖南农业大学资源环境学院,湖南长沙 410128;[欧阳宁相; 周清; 盛浩; 张杨珠; 彭世清] 湖南农业大学

关键词： 旱地;土壤类型;铝形态;诊断层;成土母质;连续提取法;湖南

摘要： 选取湖南省不同地区第四纪红色黏土、石灰岩风化物、紫色页岩风化物、花岗岩风化物等4种母质发育的12个典型土壤剖面的分层土样进行分析,探究土壤铝的化学结合形态在不同的土壤剖面、不同母质、各特征土层和不同土壤类型间的分布,及其与各土壤基本理化性质的相关关系。结果表明:供试土壤中,交换态铝（Ex–Al）、吸附态无机羟基铝（Hy–Al）、有机配合态铝（Or–Al）、氧化铁结合态铝（DCB–Al）、层间铝（In–Al）、非晶态铝硅酸盐及三水铝石（Nc–Al）、矿物态铝（Min–Al）、全铝（Alt）质量分数在表土层分别为（0.31±0.24）、（1.57±0.80）、（7.24±4.77）、（2.47±1.72）、（5.10±2.85）、（18.91±7.91）、（126.78±18.49）、（162.37±24.86）g/kg,在表下层分别为（0.26±0.18）、（1.24±0.89）、（4.17±3.09）、（3.24±2.69）、（6.09±2.97）、（23.81±10.68）、（122.13±40.12）、（160.91±51.39） g/kg,在母质层分别为（0.16±0.16）、（1.09±0.92）、（2.93±2.46）、（2.61±2.67）、（5.49±3.12）、（21.81±9.94）、（137.44±27.01）、（171.53±32.79）g/kg;在土壤剖面上,Ex–Al、Hy–Al和Or–Al质量分数随土层深度的增加逐渐降低,而DCB–Al、In–Al、Nc–Al质量分数则先增加后减小;在4类母质中,表土层中的Ex–Al质量分数在第四纪红土发育土壤中的最高,表下层和母质层中的Ex–Al质量分数在花岗岩风化物发育土壤中的最高,Hy–Al和In–Al质量分数在花岗岩风化物发育的土壤中最高,Or–Al和DCB–Al质量分数在石灰岩风化物发育的土壤中最高,表土层和表下层中的Nc–Al质量分数在石灰岩风化物发育土壤中的最高,而母质层中的Nc–Al则在花岗岩风化物发育土壤中的最高;在6种特征土层中,Ex–Al、DCB–Al、In–Al和Nc–Al质量分数在低活性富铁层中最高,而Hy–Al和Or–Al质量分数则在腐殖质表层中最高;在4种土壤类型中,富铁土中的Ex–Al、DCB–Al、In–Al和Nc–Al质量分数最高,新成土中的Hy–Al和Or–Al质量分数最高;影响土壤中铝的化学结合形态和分布的因素主要有pH、有机质、CEC、游离铁、全铝和黏粒等。

语种： 中文

作者： 刘沛;周清;杨君;谢红霞;谭洁;...

期刊： 新西部,2019年(26):75+101 ISSN：1009-8607

作者机构： 湖南农业大学资源环境学院 湖南长沙410128

关键词： 农业院校;专业实践教学;改革路径

摘要： 本文以湖南农业大学"人文地理与城乡规划"专业为例,阐述了新形势下农业院校专业实践教学改革的意义,对专业实践教学改革的路径作了规划与设计,提出了具体的实施策略。一是搞好三大综合实践教学模块设计与融合;二是重视实践教学改革的效果评价;三是构建基于"乡村振兴"战略的实践教学体系。

语种： 中文

作者： 于康;欧阳宁相;张杨珠;周清;盛浩;...

期刊： 湖南农业科学,2019年(12):30-37 ISSN：1006-060X

作者机构： 湖南农业大学资源环境学院,湖南 长沙 410128;[袁红; 欧阳宁相; 黄运湘; 周清; 于康; 盛浩; 张杨珠] 湖南农业大学

关键词： 土壤温度;估算方式;土壤系统分类;湖南

摘要： 为了建立湖南省土壤温度的估算模式,探明湖南省土壤温度的空间变异规律,以湖南省83个气象站点的地面气候数据为基础,拟合50 cm深度年均土壤温度与纬度、经度和海拔高度之间的相关关系,构建相应的土壤温度估算模型,并运用此模型对199个湖南省土壤系统分类采样点土壤温度进行估算,以确定各采样点的土壤温度状况,且依此建立湖南省土壤温度分布图。结果表明:建立的用以估计50 cm深度土壤温度的多元回归方程为:y=37.013-0.027×E-0.516×N-0.004×H （R2=0.866,sig.=0.000）。运用此模型来估算湖南省的土壤温度,并确定土壤温度状况是完全可行的;除了海拔800 m以上区域存在年均土壤温度≤16℃（温性土壤温度状况）,其余均>16℃（热性土壤温度状况）。此研究建立的湖南省土壤温度估算公式为湖南省土壤系统分类中土壤温度状况的确定提供了技术支撑,对建立全国土壤温度估算模型也可提供一定的参考。

语种： 中文

作者： 于康;欧阳宁相;张杨珠;盛浩;周清;...

期刊： 农业现代化研究,2019年40(1):169-178 ISSN：1000-0275

作者机构： 湖南农业大学资源环境学院,湖南 长沙,410128

关键词： 典型土壤;诊断层;诊断特性;中国土壤系统分类;郴州市

摘要： 为了探明湖南省郴州市典型土壤在中国土壤系统分类中的归属,选取郴州市8个典型土壤剖面,通过查阅资料、野外调查取样和室内分析,参照《中国土壤系统分类检索(第三版)》和中国土壤系统分类土族和土系的划分标准,确定其诊断层、诊断特性及在中国土壤系统分类中的归属。结果表明:8个典型供试土壤剖面含有暗瘠表层、淡薄表层、黏化层、低活性富铁层、雏形层5个诊断层,铁质特性、铝质现象、准石质接触面、土壤水分状况(常湿润、湿润)、土壤温度状况(热性)5个诊断特性与现象;由此检索出富铁土、淋溶土、雏形土、新成土4个土纲;湿润富铁土、湿润淋溶土、常湿雏形土、湿润雏形土、正常新成土5个亚纲;黏化湿润富铁土、铝质湿润淋溶土、铁质湿润淋溶土、酸性常湿雏形土、铁质湿润雏形土、湿润正常新成土6个土类;普通黏化湿润富铁土、普通铝质湿润淋溶土、红色铁质湿润淋溶土、铁质酸性常湿雏形土、红色铁质湿润雏形土、普通铁质湿润雏形土、普通湿润正常新成土7个亚类;黏壤质硅质混合型酸性热性-普通铁质湿润雏形土等8个土族;建立了上洞系(43-CZ01)、五一系(43-CZ02)等8个土系。此研究实现了郴州市典型土壤在中国土壤系统分类中的归属,对中国土壤系统分类中的土壤水分状况提出建议;增添了郴州市多种类型土壤的基础属性信息,为土壤调查制图和农业生产指导等提供了依据。

语种： 中文

作者： 曹俏;余展;周清;罗卓;欧阳宁相;...

期刊： 土壤,2019年51(1):168-177 ISSN：0253-9829

作者机构： 湖南农业大学资源环境学院,长沙,410128;[曹俏; 余展; 欧阳宁相; 罗卓; 周清; 张扬珠; 盛浩] 湖南农业大学

关键词： 水稻土;诊断层;诊断特性;中国土壤系统分类

摘要： 选取湘北地区7个发育于2种母质的水稻土剖面样点,通过对其成土环境、剖面形态特征以及土壤理化性质进行野外观测和室内分析,按中国土壤系统分类方案,检索出诊断层和诊断特性,确定其在中国土壤系统分类中的归属,并评述土系的生产性能。结果表明:供试水稻土归属于水耕人为土亚纲下的简育和铁聚水耕人为土2个土类,底潜简育水耕人为土、普通简育水耕人为土、普通铁聚水耕人为土、漂白铁聚水耕人为土4个亚类;进一步按照土族和土系划分标准,划分出7个土族和7个土系。在相同成土环境下,同种母质发育的水耕人为土,土壤系统分类比土壤发生分类具有更强的划分能力。其划分的基层土壤单元(土族和土系),对农业生产、土地资源利用更具有指导意义。

语种： 中文

作者： 赵旖森;张亮;盛浩;袁红;周清

期刊： 中国蔬菜,2019年(1):65-69 ISSN：1000-6346

作者机构： 湖南农业大学资源环境学院,湖南长沙,410128;[袁红; 赵旖森; 周清; 张亮; 盛浩] 湖南农业大学

关键词： 辣椒疫霉;拮抗菌;筛选;鉴定;防效

摘要： 以筛选、获取优良辣椒疫霉病害生防菌株材料为目标,通过平板稀释法与对峙法对水稻土壤耕层可培养细菌进行分离和筛选,成功从167株可培养细菌中分离、筛选获得1株拮抗菌LRS-1,并被鉴定为多粘类芽孢杆菌（Paenibacillus polymyxa）。该拮抗菌对辣椒疫霉菌具有68%左右的室内持久抑菌率以及63.4%的温室病害防效;Realtime-PCR检测结果表明该拮抗菌对根围疫霉菌侵染数量具有显著的抑制效果。

语种： 中文

作者： Xie, Hongxia*;Zhou, Qing;Zheng, Shengyun;Wang, Haitao;Zhang, Min;...

期刊： 2018 7th International Conference on Agro-geoinformatics (Agro-geoinformatics),2018年:1-4 ISSN：2334-3168

通讯作者： Xie, Hongxia

作者机构： [Xie, Hongxia; Zhou, Qing; Wang, Haitao; Zheng, Shengyun; Guo, Yadong; Zhang, Min] Hunan Agr Univ, Coll Resources & Environm Sci, Changsha, Hunan, Peoples R China.

通讯机构： [Xie, Hongxia] H;Hunan Agr Univ, Coll Resources & Environm Sci, Changsha, Hunan, Peoples R China.

会议名称： 7th International Conference on Agro-Geoinformatics (Agro-Geoinformatics)

会议时间： AUG 06-09, 2018

会议地点： George Mason Univ, Ctr Spatial Informat Sci & Syst, Hangzhou, PEOPLES R CHINA

会议主办单位： George Mason Univ, Ctr Spatial Informat Sci & Syst

会议论文集名称： International Conference on Agro-Geoinformatics

关键词： cover and management factor;Spatio-temporal change;land use;vegetation coverage;Hunan Province

摘要： Soil erosion is an important research issue because it can result in serious hazards, such as land quality degrading, flood frequency increasing and deposit in rivers and lakes. The factor of cover and management is a parameter of the soil erosion prediction model and it is the ratio of soil erosion of the present cover and management to continuous clear tillage. Good vegetation cover and the effective land management can control soil erosion to some extent. Quantitative assessment the factor of cover and management in a region scale can provide the cover and management data and some good suggestion for the land use and soil conservation planning. This study chooses Hunan Province in the central and southern China which has no relevant research till now. With the land use and vegetation coverage data of 30 meters resolution extracted from Landsat images in 2000, 2005, 2010 and 2015, the cover and management factor of this region is evaluated and the spatial-temporal characteristics of land use and the factor is analyzed by using the evaluation method, GIS spatial analysis and statistical analysis. The results are as follows. Because the main terrains are mountains and hills which account for 70 percent of the whole province area, the main land use types are forest land and grassland. The mean of cover and management factor is 0.06739, 0.06783, 0.06876 and 0.07421 in 2000, 2005, 2010 and 2015 respectively. The factor increased about 10 percent from 2000 to 2015. The change of cover and management factor may increase soil losses risk if the other factors affecting soil losses are not taken into account.

语种： 英文

作者： 刘沛;周清;杨君;谢红霞;谭洁;...

期刊： 新西部,2018年(12):57-58 ISSN：1009-8607

作者机构： 湖南农业大学资源环境学院 湖南长沙410128

关键词： 乡村振兴;乡村规划;人才培养;模式

摘要： 本文以湖南农业大学"人文地理与城乡规划"专业近年来组织师生参与乡村建设实践工作作为切入点,探讨新形势下乡村规划地域性人才培养模式。认为,要通过专业实习实践、毕业设计、社会创新创业等多项环节的教学,加强完善乡村建设理论教学、核心设计及拓展课程学习、自主研学相结合的教学模式,将实践教学贯穿于乡村规划人才培养过程,聚焦学生的适应性、可操作性、实战性综合能力的培养,为乡村振兴培养独具特色的乡村规划地域性人才。

语种： 中文

作者： 曹俏;周清;李志明;袁红;张亮;...

期刊： 湖南农业科学,2018年(8):37-39,43 ISSN：1006-060X

作者机构： 湖南农业大学资源环境学院,湖南长沙,410128;湖南省土壤肥料工作站,湖南长沙,410005

关键词： 治理式休耕;土壤肥力;稻田;耕层土壤;宁乡

摘要： 为探讨休耕(不耕作)和治理式休耕(翻耕、撒石灰、种植绿肥等措施)对土壤肥力水平的影响,采用野外采样、室内测定的方法,对比分析了宁乡市传统耕作、休耕及治理式休耕条件下农田土壤的理化性质.结果表明:治理式休耕降低了土壤容重,增加了土壤总孔隙度,提高了土壤有机质含量,提升了土壤肥力,使土壤养分得到合理利用,土壤资源得到了有效的保护,是宁乡地区合理的耕作模式.

语种： 中文

作者： Guo, Yadong;Zhao, Ruiying;Zeng, Yongnian*;Shi, Zhou;Zhou, Qing

期刊： CATENA,2018年160:1-9 ISSN：0341-8162

通讯作者： Zeng, Yongnian

作者机构： [Guo, Yadong; Zeng, Yongnian] Cent S Univ, Coll Geosci & Informat Phys, Changsha 410083, Hunan, Peoples R China.;[Zhou, Qing; Guo, Yadong] Hunan Agr Univ, Coll Resources & Environm, Changsha 410128, Hunan, Peoples R China.;[Zhao, Ruiying; Shi, Zhou] Zhejiang Univ, Coll Environm & Resource Sci, Inst Agr Remote Sensing & Informat Technol Applic, Hangzhou 310058, Zhejiang, Peoples R China.

通讯机构： [Zeng, Yongnian] C;Cent S Univ, Coll Geosci & Informat Phys, Changsha 410083, Hunan, Peoples R China.

关键词： Mountainous area;Soil organic matter;Anisotropy;Scale effect;Discrete wavelet transform

摘要： Soil organic matter (SOM) is an important index to evaluate soil fertility. Knowing the spatial distribution of SOM and its controlling factors at different scales is basic to sustainable farmland management. The variability was explored mostly in plain farmlands or at small scales in previous studies. In the present study, combined with anisotropy analysis (AA) and discrete wavelet transform (DWT), we examined the spatial variability of SOM and its controlling factors at various scales in a mountainous area. Transect with dominant directions (major axis and minor axis) of SOM variability was extracted using AA and then the scale-specific variability was examined using DWT. Dominant factors of SOM variability at different scales were identified using correlation coefficients between SOM at different scales and various soil environmental factors. The results showed that the major axis along which SOM varied the most was 24° south by west, consistent with the strike of Wuling Mountains. The minor axis was perpendicular to the major axis direction. DWT separated the SOM variations into nine scale components (eight details, D1 through D8, and one approximation, A8) along the major axis and into eight scale components (seven details, D1 through D7, and one approximation, A7) along minor axis. The largest-scale component (A8 in major axis and A7 in minor axis) explained the most variance of SOM along both axes, accounting for half of the total variance. Compared with the original SOM before separation of scale components (undecomposed SOM), the scale components showed significant correlation with environmental factors. Both elevation and mean annual precipitation had positive correlation with SOM at large scales. However, there was a negative correlation between SOM and mean annual temperature. This indicates that the topography and local climate may have a stronger influence in controlling SOM spatial distribution in mountain regions. The relationship provides important information on environmental covariate selection in mapping soil resource. The combination of AA and DWT shows promise quantifying SOM spatial distribution and its control factors at different scales in mountainous areas. © 2017

语种： 英文

作者： 彭涛;张亮;盛浩;周清;张杨珠

期刊： 江苏农业科学,2018年(20):316-320 ISSN：1002-1302

作者机构： 湖南农业大学资源环境学院;湖南农业大学土壤研究所

关键词： 母质;水耕人为土;诊断层;诊断特性;中国土壤系统分类;基层分类

摘要： 为探寻湘东第四纪红土发育水稻土在中国土壤系统分类中的归属,选取当地5个第四纪红土发育的典型水稻土剖面样点,野外调查成土条件、描述土壤剖面特征,并于室内分析土壤理化性状。根据中国土壤系统分类的指标体系鉴定诊断层和诊断特性,确定其在中国土壤系统分类中的归属:在水耕人为土亚纲下,划分出铁聚水耕人为土和简育水耕人为土2个土类,普通铁聚水耕人为土和普通简育水耕人为土2个亚类,并进一步划分出2个土族和5个土系（新中系、枫树桥系、袁家系、许胜系、八家湾系）,且与土壤发生分类进行参比。结果表明,类似物质起源的土壤,在基层分类单元上,系统分类比发生分类具有更强的分类能力,可有效指导当地生产实践。

语种： 中文

作者： 罗兰花;王翠红;谢红霞;周清;周敏

期刊： 水土保持研究,2018年25(1):62-65,71 ISSN：1005-3409

作者机构： 湖南农业大学资源环境学院, 长沙, 410128;永清环保股份有限公司, 长沙, 410014;[罗兰花; 王翠红; 谢红霞; 周清] 湖南农业大学资源环境学院, 长沙, 410128;[周敏] 永清环保股份有限公司, 长沙, 410014

关键词： 山地土壤;花岗岩风化物;抗蚀性;可蚀性K值

摘要： 为了研究花岗岩风化物发育土壤抗蚀性垂直分异特征,以湖南省浏阳市大围山花岗岩风化物发育而成的山地土壤为例,选取了土壤的有机质、团聚状况、团聚度、分散率、>0.25 mm水稳性团粒含量五项抗蚀性指标以及采用EPIC模型计算出土壤的可蚀性K值,对土壤抗蚀性垂直分异特征进行了研究。结果表明:大围山花岗岩风化物发育土壤团聚状况和团聚度随海拔高度的升高呈现递减的趋势,趋势较为显著;土壤分辨率随海拔高度的升高而增大,趋势不显著;有机质含量和>0.25 mm水稳性团粒含量与海拔相关性很小;土壤可蚀性K值随海拔高度的升高而增大,趋势较显著。大围山花岗岩风化物发育的土壤抗侵蚀能力弱,容易被侵蚀,但因土壤所处地貌部位、山地土壤类型以及植被覆盖情况的不同而产生差异。总体上随海拔高度的升高土壤抗蚀性呈现递减的趋势,但趋势不显著。

语种： 中文