Impacts of terrain attributes and human activities on soil texture class variations in hilly areas, south-west China

文献类型： 外文期刊

第一作者： Li, Ai-Di

作者： Li, Ai-Di;Liu, Hong-Bin;Li, Ai-Di;Guo, Peng-Tao;Wu, Wei

作者机构：

关键词： Watershed scale;Relative importance;Variation;Terraced land;Dryland;Sloping field

期刊名称：ENVIRONMENTAL MONITORING AND ASSESSMENT （ 影响因子：2.513； 五年影响因子：2.871 ）

ISSN： 0167-6369

年卷期： 2017 年 189 卷 6 期

页码：

收录情况： SCI

摘要： Knowledge of soil texture variations is critical for agricultural and engineering applications because texture influences many other soil properties. This study used random forest method to evaluate the effects of human activities and topographic parameters on the spatial variability of soil texture in hilly areas where soil parent material was uniform. The study site covers 252 km(2) and is located in the Upper Yangtze River Basin of south-west China. A total of 3636 samples were collected from the cultivated soils at a depth of 20 cm of dryland (sloping field and terraced land) landscape. The soil texture class for each sample was estimated by experienced soil scientists in the field. Two soil texture classes (loam and clay) were observed in the watershed. Eleven terrain parameters were derived from a digital elevation model with a resolution of 30 m. Compared with loamy soils, clayey soils were mostly observed in the areas with lower elevation and gentle slopes. The outcome of random forest indicated that human activities and elevation had strong effects on soil texture class variations across the study site. Further results showed that the relative importance of terrain parameters to soil texture class variations varied with dryland landscape. Topographic wetness index and elevation were the most important variables for sloping field and terraced land landscapes, respectively.

分类号：

  • 相关文献

[1]Influence of land terracing on agricultural and ecological environment in the loess plateau regions of China. Liu, Xiuhua,Wang, Ling,Wang, Zhi,Liu, Xiuhua,He, Baolin,Li, Zaoxia,Zhang, Jianglin,Wang, Zhi. 2011

[2]Effects of different management practices on the soil-water balance and crop yield for improved dryland farming in the Chinese Loess Plateau. Jin, Ke,Cornelis, Wim M.,Schiettecatte, Wouter,Lu, Junjie,Yao, Yuqing,Wu, Huijun,Gabriels, Donald,De Neve, Stefaan,Cai, Dianxiong,Jin, Jiyun,Hartmann, Roger. 2007

[3]Crop residue, manure and fertilizer in dryland maize under reduced tillage in northern China: II nutrient balances and soil fertility. Wang, Xiaobin,Hoogmoed, Willem B.,Cai, Dianxiong,Perdok, Udo D.,Oenema, Oene. 2007

[4]Scenario Analysis of Tillage, Residue and Fertilization Management Effects on Soil Organic Carbon Dynamics. Wang, XB,Cai, DX,Hoogmoed, WB,Oenema, O,Perdok, UD.

[5]Photosynthetically active radiation determining yields for an intercrop of maize with cabbage. Wang, Qingsuo,Sun, Dongbao,Hao, Hong,Zhao, Xuejiao,Hao, Weiping,Liu, Qiong.

[6]Facilitation by leguminous shrubs increases along a precipitation gradient. Zhang, Hai-Yang,Lu, Xiao-Tao,Bai, Edith,Wang, Xiao-Bo,Wang, Zheng-Wen,Zhang, Hai-Yang,Hartmann, Henrik,Knapp, Alan K.,Wang, Xiao-Guang,Yu, Qiang,Han, Xing-Guo. 2018

[7]Balanced N and C input recommendations for rain-fed maize production in northern China based on N balances and grain yields. Wang, Xiaobin,Cai, Dianxiong,Zhao, Quansheng,Xie, Xiaohong,Cai, Dianxiong,Hoogmoed, Willem B.,Oenema, Oene. 2018

[8]Effects of variation in rainfall on rainfed crop yields and water use in dryland farming areas in China. Wang, Xiaobin,Cai, Dianxiong,Wu, Huijun,Cai, Dianxiong,Hoogmoed, W. B.,Oenema, O..

[9]Crop residue, manure and fertilizer in dryland maize under reduced tillage in northern China: I grain yields and nutrient use efficiencies. Wang, Xiaobin,Cai, Dianxiong,Hoogmoed, Willem B.,Perdok, Udo D.,Oenema, Oene. 2007

[10]Dryland maize yields and water use efficiency in response to tillage/crop stubble and nutrient management practices in China. Wang, Xiaobin,Dai, Kuai,Zhang, Dingchen,Zhang, Xiaoming,Wang, Yan,Zhao, Quansheng,Cai, Dianxiong,Wang, Xiaobin,Dai, Kuai,Zhang, Dingchen,Zhang, Xiaoming,Wang, Yan,Zhao, Quansheng,Cai, Dianxiong,Cai, Dianxiong,Hoogmoed, W. B.,Oenema, O.. 2011

[11]Preliminary report on conservation tillage in dryland in Yellow River Basin. Li Lijun,Liu Jinghui,Ren Tianzhi,Zhu Jianguo,Chen Peiyi,Su Shunhe. 2007

[12]Genome organization and variation in the 3 '-partial sequence of garlic latent virus in China. Chen, J,Zheng, HY,Chen, JP,Yang, CL. 2002

[13]CottonFGD: an integrated functional genomics database for cotton. Zhu, Tao,Liang, Chengzhen,Meng, Zhigang,Sun, Guoqing,Meng, Zhaoghong,Guo, Sandui,Zhang, Rui. 2017

[14]Natural Variation of Leaf Thickness and Its Association to Yield Traits in indica Rice. Liu Chuan-guang,Zhou Xin-qiao,Chen Da-gang,Li Li-jun,Li Ju-chang,Chen You-ding. 2014

[15]Variations of main quality components of tea genetic resources [Camellia sinensis (L.) O. Kuntze] preserved in the China National Germplasm Tea Repository. Chen, L,Zhou, ZX. 2005

[16]Genotypic and environmental variation in barley beta-amylase activity and its relation to protein content. Wang, JM,Zhang, GP,Chen, JX,Shen, Q,Wu, FB. 2003

[17]An Assessment of Genetic Diversity of Yield-Related Traits of Saccharum spontaneum from Yunnan Province, China. Xu, Chaohua,Su, Huosheng,Liu, Hongbo,Lu, Xin,Li, Xujuan,Li, Chunjia,Lin, Xiuqin,Mao, Jun,Zi, Qiuyan,Liu, XinLong. 2017

[18]Variation analysis and sample size estimation for growth indicators during PIT-tag-assisted family construction of channel catfish (Ictalurus punctatus). Song, Chao,Qiu, Liping,Ming, Junchao,Chen, Jiazhang,Zhong, Liqiang,Chen, Xiaohui,Bian, Wenji.

[19]Relationships between soil respiration and photosynthesis-related spectral vegetation indices in two cropland ecosystems. Huang, Ni,Niu, Zheng,Zhan, Yulin,Xu, Shiguang,Wu, Chaoyang,Gao, Shuai,Hou, Xuehui,Cai, Dewen,Huang, Ni,Xu, Shiguang,Hou, Xuehui,Cai, Dewen,Tappert, Michelle C.,Huang, Wenjiang.

[20]1A and 3D gene sequences of coxsackievirus B3 strain CC: Variation and phylogenetic analysis. Wu, Dong-Lai,Liu, Ni-Hong,Meng, Qing-Wen,Liu, Ming-Yu,Meng, Fan-Chao.

作者其他论文 更多>>

微信小程序