Sloping Cropland(坡地)研究综述
Sloping Cropland 坡地 - (2) Under similar rainfall conditions, the flood peak modulus, K and the proportion of sloping cropland had significantly positive correlations (p. [1] Typical errors in the mapping results are from the sloping cropland (non-terrace cropland with a slope of ≥ 5 ∘ ), low-slope terraces, and non-crop vegetation. [2] Soil bunds are important controls on surface runoff, strongly limiting losses of SOC and nutrients in sloping croplands of southwest Ethiopia. [3] This study was conducted to investigate how soil thickness affects soil productivity and nitrate leaching from sloping croplands in the upper Yangtze River Basin, China. [4] These results potentially provide scientific guidance for the prevention and control of agricultural non-point source pollution on sloping croplands in the purple soil area. [5] The present research aimed to investigate the intensity and influencing factors of unpaved road erosion under varied land use and management conditions (sloping cropland, terraced cropland, forest & grass). [6] Fertilization and cultivation play important roles in affecting nitrogen (N) and phosphorus (P) losses from sloping croplands. [7] Here, we investigated the combined effects of erosion-induced soil redistribution and pedogenesis on aggregate-associated SOC dynamics in the sloping croplands of the seriously eroded, yet under-studied, Chinese Corn Belt, by conducting aggregate size fractionation and size-specific stable C isotope analyses. [8] Forestland, shrubland and terrace had significant higher SOC concentrations in the 0-20 cm soil layer than that of sloping cropland and dammed farmland (p < 0. [9] With the large scale “Grain for Green” implementation on the Loess Plateau of China, an amount of sloping cropland was converted to forestland, shrubland, and grassland. [10] Soil moisture content in the 0 to 160 cm soil profile in a sloping cropland, terraced cropland, jujube (Ziziphus jujuba) orchard, and natural grassland was monitored in a small catchment on China's Loess Plateau, using EC-5 soil moisture sensors, during the 2014 and 2015 growing seasons (May to October). [11] Effects of biochar application (at rates of 0%, 1%, and 5%) and field ageing (for 1 a) on the sorption of three antibiotics (sulfadiazine, sulfamethazine, and florfenicol) were studied by batch equilibrium tests for a calcareous purple soil of sloping cropland, which is widely distributed in hilly areas of the upper Yangtze River. [12] It is important to better understand the influence of tillage on soil sheet erosion in order to estimate the loss of fertile surface soil and to provide suitable tillage recommendations for the cultivation of sloping cropland in this region, which is susceptible to multiple erosion factors. [13](2)在相似降雨条件下，洪峰模数、K与坡耕地比例呈显着正相关(p. [1] 中的典型错误 测绘结果来自坡耕地（有坡度的非梯田 ≥ 5 ∘ )、低坡度梯田和非作物植被。 [2] 土堤是地表径流的重要控制措施，极大地限制了埃塞俄比亚西南部倾斜农田中 SOC 和养分的损失。 [3] 本研究旨在调查土壤厚度如何影响中国长江上游流域坡耕地的土壤生产力和硝酸盐淋失。 [4] 这些结果可能为紫色土区坡耕地农业面源污染防治提供科学指导。 [5] 本研究旨在调查不同土地利用和管理条件（坡耕地、梯田、林草）下未铺砌道路侵蚀的强度和影响因素。 [6] 施肥和耕作在影响坡耕地的氮 (N) 和磷 (P) 损失方面发挥着重要作用。 [7] 在这里，我们通过进行骨料尺寸分级和特定尺寸的稳定 C，研究了侵蚀引起的土壤重新分布和成土对严重侵蚀但研究不足的中国玉米带倾斜农田中与骨料相关的 SOC 动态的综合影响。同位素分析。 [8] 林地、灌丛和梯田在 0-20cm 土层中 SOC 浓度显着高于坡耕地和堤坝耕地（p<0. [9] 随着中国黄土高原“退耕还林”的大规模实施，大量坡耕地转为林地、灌丛、草地。 [10] 在中国黄土高原的一个小流域，使用 EC-5 土壤湿度传感器，对坡耕地、梯田、枣园和天然草地 0 至 160 cm 土壤剖面中的土壤水分含量进行了监测。 2014 年和 2015 年生长季节（5 月至 10 月）。 [11] 通过钙质紫色的批次平衡试验研究了生物炭应用（以 0%、1% 和 5% 的比率）和现场老化（对于 1 a）对三种抗生素（磺胺嘧啶、磺胺二甲嘧啶和氟苯尼考）吸附的影响坡耕地土壤，广泛分布于长江上游丘陵地带。 [12] 重要的是要更好地了解耕作对土壤表层侵蚀的影响，以估计肥沃的表层土壤的损失，并为该地区易受多种侵蚀因素影响的坡耕地的耕作提供合适的耕作建议。 [13]
Abandoned Sloping Cropland 废弃的坡地
We used the space-for-time chronosequence method to establish a restoration gradient (sloping cropland, abandoned sloping cropland, and secondary and primary forest) within the Karst Critical Zone Observatory in southwest China. [1] In this study, we quantified the response of the diazotrophic population in topsoil (0–10 cm deep) along a vegetation restoration gradient (sloping cropland > abandoned sloping cropland > secondary forest > primary forest) in the Puding Karst Critical Zone Observatory, Guizhou Province, southwest China from the absolute and specific BNF rates, determined using the acetylene reduction method and qPCR and MiSeq sequencing of nifH genes. [2] In 2016, a space‐for‐time approach was used to establish a chronosequence of vegetation recovery: sloping cropland < recently abandoned sloping cropland < shrubland < secondary (regenerated) forest < primary (natural) forest. [3]我们采用时空时序法建立了西南喀斯特临界带观测站内的恢复梯度（坡耕地、废弃坡耕地、次生林和原始林）。 [1] 在本研究中，我们量化了贵州省普定岩溶临界带观测站表层土壤（0-10 cm 深）固氮种群沿植被恢复梯度（坡耕地 > 废弃坡耕地 > 次生林 > 原始林）的响应。 , 中国西南地区的绝对和特定 BNF 率，使用乙炔还原法和 nifH 基因的 qPCR 和 MiSeq 测序确定。 [2] 2016年，使用时空法建立植被恢复时间序列：坡耕地<最近废弃的坡耕地<灌木地<次生（再生）林<原始（天然）林。 [3]