Results 281 to 290 of about 134,306 (354)

Pesticide residues in agricultural topsoil from the Hainan tropical riverside basin: Determination, distribution, and relationships with planting patterns and surface water.

Science of the Total Environment, 2020
Pesticide residues were assessed in rice-vegetable rotation topsoil from tropical riverside basin. The 256 tropical topsoil samples from the Nandu River Basin (NRB) and Wanquan River Basin (WRB) in Hainan (China) were taken from 2018 to 2019.
Huadong Tan, Qinfen Li, Huijie Zhang, Chunyuan Wu, Shuqiao Zhao, Xiao Deng, Yi Li   +6 more
semanticscholar   +1 more source

Exploring the potential of airborne hyperspectral image for estimating topsoil organic carbon: Effects of fractional-order derivative and optimal band combination algorithm

, 2020
Estimating soil organic carbon (SOC) in topsoil can help improve soil quality and food production. This study aimed to explore the potential of airborne hyperspectral image to estimate the SOC of bare topsoil at an agricultural site located in the ...
Yongsheng Hong, Long Guo, Songchao Chen, M. Linderman, A. Mouazen, Lei Yu, Yiyun Chen, Yaolin Liu, Yanfang Liu, Hang Cheng, Yi Liu   +10 more
semanticscholar   +1 more source

Application of iron-biochar composite in topsoil for simultaneous remediation of chromium-contaminated soil and groundwater: Immobilization mechanism and long-term stability.

Journal of Hazardous Materials, 2020
This study was aimed to prove the effectiveness and practicability of an integrated technology for simultaneous remediation of Cr-contaminated soil and groundwater.
Xiang Chen, Yihan Dai, Jin Fan, Xiaoyun Xu, Xinde Cao   +4 more
semanticscholar   +1 more source

Climate warming alters subsoil but not topsoil carbon dynamics in alpine grassland

Global Change Biology, 2019
Subsoil contains more than half of soil organic carbon (SOC) globally and is conventionally assumed to be relatively unresponsive to warming compared to the topsoil.
J. Jia, Z. Cao, Chengzhu Liu, Zhenhua Zhang, Li Lin, Yiyun Wang, N. Haghipour, L. Wacker, H. Bao, T. Dittmar, M. Simpson, Huan Yang, T. Crowther, T. Eglinton, Jinsheng He, Xiaojuan Feng   +15 more
semanticscholar   +1 more source

Contamination characteristics and source apportionment of heavy metals in topsoil from an area in Xi’an city, China

Ecotoxicology and Environmental Safety, 2018
Xiuduan Chen, Xinwei Lu
exaly   +2 more sources

National digital soil map of organic matter in topsoil and its associated uncertainty in 1980's China

Geoderma, 2019
Accurate digital soil maps of soil organic matter (SOM) are needed to evaluate soil fertility, to estimate stocks, and for ecological and environment modeling.
Zongzheng Liang, Songchao Chen, Yuanyuan Yang, Ruiying Zhao, Zhou Shi, R. V. Rossel   +5 more
semanticscholar   +1 more source

Topsoil reinforcement of sandy slope for preventing erosion using water-based polyurethane soil stabilizer

Engineering Geology, 2019
The topsoil of sandy slope suffers from serious erosion due to its weak internal cohesion. Most of the efforts have been made to improve the stability of topsoil by recovering the inter-particle cohesion without due concern to environmental and ...
Jin Liu, Zhi-hao Chen, D. P. Kanungo, Zezhuo Song, Yuxia Bai, Ying Wang, Ding Li, Wei Qian   +7 more
semanticscholar   +1 more source

Effects of degradation severity on the physical, chemical and mechanical properties of topsoil in alpine meadow on the Qinghai-Tibet Plateau, west China

, 2020
Grassland degradation is an important cause of soil erosion and environment degradation in the world. So far few have quantitatively analyzed how the level of soil degradation of grassland affects the physical, chemical and mechanical traits of topsoil ...
Guo-rong Li, Xi-lai Li, Wenting Chen, Jinfang Li, Hai-li Zhu, Xiasong Hu, Hua-kun Zhou, Haiqun Sun   +7 more
semanticscholar   +1 more source

Reducing topsoil depth decreases the yield and nutrient uptake of maize and soybean grown in a glacial till

Land Degradation and Development, 2020
Soil erosion decreases topsoil depth on hill slopes and increases depth in depositional areas, and hence impacts soil fertility and crop productivity in agricultural systems.
Lili Guo, Yue Yang, Yue Zhao, Yansheng Li, Yueyu Sui, Caixian Tang, Jian Jin, Xiaobing Liu   +7 more
semanticscholar   +1 more source

Ecological succession in areas degraded by bauxite mining indicates successful use of topsoil

Restoration Ecology, 2020
Brazilian ironstone outcrops (cangas) are nutrient‐poor stressful habitat dominated by slow‐growing woody species with high biodiversity and unique evolutionary history. Mining has produced great impacts on this ecosystem.
C. Onésimo, D. D. Dias, M. Beirão, A. Kozovits, M. C. Messias   +4 more
semanticscholar   +1 more source