Hedgerow ridge (HR) is a novel farming technique that consists of clover ( Trifolium repens cv. Haifa.) hedgerows grown on short cross ridges that were established in furrows and running perpendicular and between longitudinal ridges. Additionally, the HRs and longitudinal ridges form pitting fields (PF). A three-year field experiment was conducted to investigate HR effects on reducing sediment, runoff, and soil nitrogen (N) and phosphorus (P) losses in a sloping farmland. There are eight treatments, which are traditional longitudinal ridge tillage (CK1); cross ridge tillage (CK2); HR + 1 m (H1PL [T1]), HR + 3 m (H3PL [T2]), and HR + 5 m (H5PL [T3]) length PF plus longitudinal ridge tillage; and short cross ridge (NHR) + 1 m (N1PL [T4]), NHR + 3 m (N3PL [T5]), and NHR + 5 m (N5PL [T6]) length PF plus longitudinal ridge tillage. The results indicate the following: (1) compared with CK1, the sediment and runoff of CK2 decreased 46.9% and 52.9%; H1PL, H3PL, and H5PL decreased sediment by 44.6%, 44.1%, and 42.1%; and decreased runoff by 50.1%, 49.8%, and 49.2%. N1PL, N3PL, and N5PL can also decrease water and soil losses in sloping farmland. Compared with H1PL, H3PL, and H5PL, N1PL, N3PL, and N5PL increased sediment by 16.3%, 12.6%, and 39.5% and increased runoff 29.6%, 46.8%, and 76.9%. HR technical effects on control sediment and runoff losses are close to CK2 and reach significant differences ( P < 0.05). (2) Compared with CK1, total nitrogen (TN) concentration of sediment and TN concentration of runoff of all treatments were increased but total phosphorus (TP) concentration of sediment and TN concentration of runoff of all treatments were unchanged. Total N and TP concentration of all treatments were increased, and there are significant differences among treatments regarding TN concentration and no significant differences among treatments regarding TP concentration. Soil N from sloping farmland did not increase because contribution from runoff reduction is more than TN concentration of runoff increment.

中文翻译：

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绿篱：一种新型的改良耕作方法，可减少松花江流域倾斜农田的水，沉积物和养分流失

绿篱（HR）是一种新颖的耕作技术，由三叶草（Trifolium repens cv。Haifa。）组成，生长在短横cross上的三叶草，横cross建立在犁沟中，垂直并在纵脊之间延伸。此外，HR和纵向脊形成点蚀场（PF）。进行了为期三年的野外实验，以研究HR对减少坡地上的沉积物，径流以及土壤氮（N）和磷（P）损失的影响。有八种处理方式，即传统的纵垄耕作（CK1）；横垄耕作（CK2）; HR +1 m（H1PL [T1]），HR + 3 m（H3PL [T2]）和HR + 5 m（H5PL [T3]）长度PF加上纵向垄作耕作；短横垄（NHR）+ 1 m（N1PL [T4]），NHR + 3 m（N3PL [T5]）和NHR + 5 m（N5PL [T6]）长度PF加上纵垄耕作。结果表明：（1）与CK1相比，CK2的沉积物和径流分别减少了46.9％和52.9％；H1PL，H3PL和H5PL使沉积物减少了44.6％，44.1％和42.1％; 径流分别减少了50.1％，49.8％和49.2％。N1PL，N3PL和N5PL还可以减少坡耕地的水土流失。与H1PL，H3PL和H5PL相比，N1PL，N3PL和N5PL分别增加了16.3％，12.6％和39.5％的泥沙量，增加了径流29.6％，46.8％和76.9％的泥沙量。HR技术对控制沉积物和径流损失的影响接近CK2，差异有统计学意义（P <0.05）。（2）与CK1相比，所有处理的沉积物总氮（TN）浓度和径流总氮浓度均升高，但所有处理的沉积物总磷（TP）浓度和径流总氮浓度均未改变。所有处理的总氮和总磷浓度均增加，各处理之间在总氮浓度上有显着差异，各处理之间在总磷浓度上无显着差异。坡耕地的土壤氮没有增加，因为径流减少的贡献大于径流增量的总氮浓度。