@article{CHEN:247007,
      recid = {247007},
      author = {CHEN, Guojian and LI, Chunjuan and LI, Chunli and LI,  Juanjuan and WEI, Jie and DONG, Hongwei},
      title = {A Study of Soil Nutrients in the Terrace Field Changed  from Mountain Slope in Three Gorges Reservoir Region},
      journal = {Asian Agricultural Research},
      address = {2016-08},
      number = {1812-2016-144632},
      pages = {4},
      year = {2016},
      abstract = {In order to accurately grasp the soil fertility in Three  Gorges Reservoir Region after changing mountain slope into  terrace field, we take Wushan County for example, and use  the spatio-temporal substitution method to analyze the soil  nutrient status and trend about the terrace field changed  from mountain slope under different length of  implementation. The results show that the soil fertility is  generally low in the study area, and according to the soil  nutrient grading standards in the second national land  survey, the average content of total nitrogen, available  potassium, organic matter and available phosphorus reaches  Standard III, Standard III, Standard IV and Standard V,  respectively, and the spatial heterogeneity of soil  nutrients is small. Compared to the sloping land, the  terrace field changed from mountain slope has increasing  soil nutrients on the whole with the length of farming. The  mean of various indicators about soil nutrients in the  terrace field changed from mountain slope for 2 years is  lower than in the sloping land, and there is the biggest  difference in soil fertility, while the mean of various  indicators about soil nutrients in the terrace field  changed from mountain slope for 14 years shows a linear  upward trend, and the difference in soil fertility  decreases.},
      url = {http://ageconsearch.umn.edu/record/247007},
      doi = {https://doi.org/10.22004/ag.econ.247007},
}