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Min Xia
College of Land Management, Nanjing Agricultural University, Nanjing 210095, China

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Journal article
Published: 22 August 2021 in Agriculture
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The agricultural soil alongside highways has experienced multiple potential ecological risks from human activities. In this study, 100 soil samples near the highways were collected in Lishui District, Nanjing City. Using the single-factor pollution index, the Nemerow comprehensive pollution index, and the potential ecological risk index, the study investigated the heavy metal contents and distribution in roadside agricultural soil. PCA and a multiple regression model were applied to quantitatively analyze the spatial relationships between sampling soil heavy metal accumulation and the surrounding man-made landscape. The mean contents of Cu and Pb exceeded the background, while Cd, Cr, and Zn were lower than that. The potential ecological risk index exhibited a very low ecological hazard and only Cr in soils rarely showed moderate risk. Furthermore, quantitative analysis for the sources of contamination revealed that agricultural practices were the dominant contributors to the heavy metals, including Cd, Cu, and Zn, while road and heavy industrial practices contributed to Cr and Pb. The study provides sources of heavy metal pollution from human activities in roadside agricultural land and serves as a reference for ecological restoration.

ACS Style

Cong Xu; Jie Pu; Bo Wen; Min Xia. Potential Ecological Risks of Heavy Metals in Agricultural Soil Alongside Highways and Their Relationship with Landscape. Agriculture 2021, 11, 800 .

AMA Style

Cong Xu, Jie Pu, Bo Wen, Min Xia. Potential Ecological Risks of Heavy Metals in Agricultural Soil Alongside Highways and Their Relationship with Landscape. Agriculture. 2021; 11 (8):800.

Chicago/Turabian Style

Cong Xu; Jie Pu; Bo Wen; Min Xia. 2021. "Potential Ecological Risks of Heavy Metals in Agricultural Soil Alongside Highways and Their Relationship with Landscape." Agriculture 11, no. 8: 800.

Journal article
Published: 08 May 2021 in Land
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The hilly areas of China have experienced soil erosion and are also typical land consolidation (LC) regions. Using the RUSLE model and the multiple regression model, this study evaluated the soil erosion of agricultural land and assessed the effects of LC on soil erosion in Lishui District, a typical district in the Ning-Zhen-Yang hilly area. The soil erosion of agricultural land ranged from 0 to 385.77 t·ha−1·yr−1 with spatial heterogeneity due to the topography, land cover, and vegetation cover. Overall, carrying out LC reduced soil erosion due to the construction of protection forests, farmland shelterbelts, and different kinds of land engineering. Furthermore, the different types of LC had different impacts on soil erosion, where farmland consolidation resulted in more serious soil erosion than land development. Nevertheless, the potential risks brought by LC to soil erosion reduction could not be overlooked, and more attention should be paid to ecological environment protection during the process of LC. This study presents findings regarding the positive impacts and potential risks of LC for soil erosion reduction in agricultural land in hilly areas.

ACS Style

Yanyuan Zhang; Cong Xu; Min Xia. Can Land Consolidation Reduce the Soil Erosion of Agricultural Land in Hilly Areas? Evidence from Lishui District, Nanjing City. Land 2021, 10, 502 .

AMA Style

Yanyuan Zhang, Cong Xu, Min Xia. Can Land Consolidation Reduce the Soil Erosion of Agricultural Land in Hilly Areas? Evidence from Lishui District, Nanjing City. Land. 2021; 10 (5):502.

Chicago/Turabian Style

Yanyuan Zhang; Cong Xu; Min Xia. 2021. "Can Land Consolidation Reduce the Soil Erosion of Agricultural Land in Hilly Areas? Evidence from Lishui District, Nanjing City." Land 10, no. 5: 502.

Journal article
Published: 02 February 2021 in Land
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It is crucial to pay close attention to the ecological security in land consolidation and utilization of coastal tidal areas and make an appropriate zoning scheme to meet the characteristics of its particular landscape. Landscape security patterns can identify the patterns that are crucial to the health and security of landscape ecological processes by analyzing and simulation them. This article applies the theory of landscape security pattern to land consolidation zoning in a coastal tidal area, Dafeng District, Yancheng, Jiangsu Province. The main landscape processes in land consolidation are explored in land consolidation in the area by literature review and field investigation, corresponding single landscape ecological security patterns are constructed using spatial analysis functions in ArcGIS 10.3, and land consolidation zones are determined according to the comprehensive landscape security pattern. The results show that: (1) The processes of water-soil conservation, water source protection, biodiversity conservation, local culture protection, and recreation are the main landscape processes. The security patterns generated by key points and resistance elements could affect land consolidation; (2) The comprehensive landscape security pattern is composed of the multi-landscape security patterns, which are classified into three levels of high, medium, and low. The areas of the levels account for 20.12%, 46.23% and 33.65% of Dafeng District, respectively; (3) The specific suggestions of ecological protection and ecological restoration in land consolidation are put forward for land consolidation zones with different levels of landscape security patterns. These results suggest that zoning based on landscape security patterns can provide guidance for land consolidation and regulation in coastal tidal areas.

ACS Style

Min Xia; Linyan Wang; Bo Wen; Wei Zou; Weixin Ou; Zhongqiong Qu. Land Consolidation Zoning in Coastal Tidal Areas Based on Landscape Security Pattern: A Case Study of Dafeng District, Yancheng, Jiangsu Province, China. Land 2021, 10, 145 .

AMA Style

Min Xia, Linyan Wang, Bo Wen, Wei Zou, Weixin Ou, Zhongqiong Qu. Land Consolidation Zoning in Coastal Tidal Areas Based on Landscape Security Pattern: A Case Study of Dafeng District, Yancheng, Jiangsu Province, China. Land. 2021; 10 (2):145.

Chicago/Turabian Style

Min Xia; Linyan Wang; Bo Wen; Wei Zou; Weixin Ou; Zhongqiong Qu. 2021. "Land Consolidation Zoning in Coastal Tidal Areas Based on Landscape Security Pattern: A Case Study of Dafeng District, Yancheng, Jiangsu Province, China." Land 10, no. 2: 145.

Journal article
Published: 09 October 2019 in Land Use Policy
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Analyzing and understanding land use decisions of government, peasant households and enterprises could help modeling agricultural land use change, which has taken place in China during the past thirty years. Taking Guanlin town, Yixing city, China as a case, land use data in 4 periods from 2006 to 2015 were used for analyzing agricultural land use change. With the consideration of land use decisions of government, peasant households and enterprises, agricultural land use change in 2021 and 2030 of the study area were modeled by coupling CA and MAS. The results showed that agricultural land area decreased in 2006–2009 and then increased in 2009–2015, with an overall increase of 5.13 km2. Paddy fields, aquaculture surface and rainfed cropland were converted most frequently. Government was the main planner and key decision maker of agricultural land use, which guides the allocation and use of agricultural land. Peasant households participated in the adjustment of agricultural land with the authorization of the government, and their decisions were influenced by traffic accessibility, irrigation and drainage condition, land quality, land rent and distance to residential land. Enterprises participated in the adjustment of industrial land with the supervision of the government, which indirectly affecting agricultural land use. The main factors affecting their site selection decision were environmental quality, land price, transportation conditions and public facilities conditions. The modeling results indicated that agricultural land area would decrease by 4.74 km2 from 2015 to 2030. Cultivated land had an accelerating decrease trend while aquaculture surface increased continuously. These results provide reference for the research of agricultural land use change and the decision of rural land management.

ACS Style

Min Xia; Yanyuan Zhang; Zihong Zhang; Jingjie Liu; Weixin Ou; Wei Zou. Modeling agricultural land use change in a rapid urbanizing town: Linking the decisions of government, peasant households and enterprises. Land Use Policy 2019, 90, 104266 .

AMA Style

Min Xia, Yanyuan Zhang, Zihong Zhang, Jingjie Liu, Weixin Ou, Wei Zou. Modeling agricultural land use change in a rapid urbanizing town: Linking the decisions of government, peasant households and enterprises. Land Use Policy. 2019; 90 ():104266.

Chicago/Turabian Style

Min Xia; Yanyuan Zhang; Zihong Zhang; Jingjie Liu; Weixin Ou; Wei Zou. 2019. "Modeling agricultural land use change in a rapid urbanizing town: Linking the decisions of government, peasant households and enterprises." Land Use Policy 90, no. : 104266.

Journal article
Published: 01 August 2018 in Chemosphere
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Excessive accumulation of heavy metals in tea has certain health risk to the consumers. To discuss the spatial relationship between heavy metals in tea leaves and soil in a county scale, 74 samples of tea leaves and corresponding subsoil (15-30 cm) were collected in the tea plantations of Lishui, Nanjing, China. The total Zn, Ni, Mn, Cr, Pb and Cu in both tea leaves and soil samples, as well as pH value in soil were analyzed. The results of regression showed that the Mn and Cr in tea leaves were increased when the Mn and Cr in soil were at high levels, and higher pH decreased Zn, Ni, Mn and Cu contents in tea leaves. Moreover, distance to village and metal industry had negative impacts on the Mn level in soil. It is necessary to control the pH of soil in tea plantations which are close to villages or metal industries, as well as, to search more appropriate areas, where are far away from villages or metal industries, to plant tea should be taken into consideration. In addition, 17.57% of the samples have higher concentration of Pb than the maximum limits was found in tea plantation of Lishui. Heavy metals (Cr) standards regarding leafy vegetables is used for reference in this study, as there are no maximum levels of contaminants (MLC) in tea. It is significant to construct a targeted standard of heavy metals contents that could applicable throughout the world for reduce the health risks to the consumers.

ACS Style

Bo Wen; Lei Li; Yu Duan; Yanyuan Zhang; Jiazhi Shen; Min Xia; Yuhua Wang; Wanping Fang; Xujun Zhu. Zn, Ni, Mn, Cr, Pb and Cu in soil-tea ecosystem: The concentrations, spatial relationship and potential control. Chemosphere 2018, 204, 92 -100.

AMA Style

Bo Wen, Lei Li, Yu Duan, Yanyuan Zhang, Jiazhi Shen, Min Xia, Yuhua Wang, Wanping Fang, Xujun Zhu. Zn, Ni, Mn, Cr, Pb and Cu in soil-tea ecosystem: The concentrations, spatial relationship and potential control. Chemosphere. 2018; 204 ():92-100.

Chicago/Turabian Style

Bo Wen; Lei Li; Yu Duan; Yanyuan Zhang; Jiazhi Shen; Min Xia; Yuhua Wang; Wanping Fang; Xujun Zhu. 2018. "Zn, Ni, Mn, Cr, Pb and Cu in soil-tea ecosystem: The concentrations, spatial relationship and potential control." Chemosphere 204, no. : 92-100.

Journal article
Published: 01 August 2018 in Sustainability
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Analyzing the spatial-temporal changes of resources–based industrial land is essential to the transformation and development of resources–exhausted cities. In this paper, we studied coal resources–based industrial land use changes and their driving factors in a typical coal resources–exhausted city, Anyuan District, Pingxiang city. The changes between coal resources–based industrial land and other land-use types were analyzed. The logistic regression models were applied to identify the main driving factors and quantify their contributions to coal resources–based industrial land-use changes during the two periods of 2003–2008 and 2008–2013. The results show that coal resources–based industrial land declined by 34.37% during the period 2008–2013 as coal resources were being exhausted. Altitude, distance to roads, distance to town, population density change, fixed-asset investment per area change, and GDP per capita change drove coal resources–based industrial land-use changes. However, the patterns of the driving effects differed, and even the same factors had different influences on coal resources–based industrial land-use changes during the two periods. The changes in the driving factors can be seen as responses to socioeconomic transformation and development in the city, which is experiencing the exhaustion of coal resources. As a result of the comprehensive effects of these driving factors, coal resources–based industrial land use has changed in complex ways.

ACS Style

Bo Wen; Yunhua Pan; Yanyuan Zhang; Jingjie Liu; Min Xia. Does the Exhaustion of Resources Drive Land Use Changes? Evidence from the Influence of Coal Resources-Exhaustion on Coal Resources–Based Industry Land Use Changes. Sustainability 2018, 10, 2698 .

AMA Style

Bo Wen, Yunhua Pan, Yanyuan Zhang, Jingjie Liu, Min Xia. Does the Exhaustion of Resources Drive Land Use Changes? Evidence from the Influence of Coal Resources-Exhaustion on Coal Resources–Based Industry Land Use Changes. Sustainability. 2018; 10 (8):2698.

Chicago/Turabian Style

Bo Wen; Yunhua Pan; Yanyuan Zhang; Jingjie Liu; Min Xia. 2018. "Does the Exhaustion of Resources Drive Land Use Changes? Evidence from the Influence of Coal Resources-Exhaustion on Coal Resources–Based Industry Land Use Changes." Sustainability 10, no. 8: 2698.