تخمین پاسخ فرسایش خاک در استفاده از زمین
ترجمه نشده

تخمین پاسخ فرسایش خاک در استفاده از زمین

عنوان فارسی مقاله: تخمین پاسخ فرسایش خاک در استفاده از زمین، تغییرات پوششی در حوضچه Loess Plateau، چین
عنوان انگلیسی مقاله: Estimating soil erosion response to land use/cover change in a catchment of the Loess Plateau, China
مجله/کنفرانس: تحقیقات حفاظت از خاک و آب بین المللی – International Soil and Water Conservation Research
رشته های تحصیلی مرتبط: مهندسی عمران
گرایش های تحصیلی مرتبط: ژئوتکنیک
کلمات کلیدی فارسی: فلات Loess، تغییرات استفاده از زمین، RUSLE، SEDD، فرسایش خاک
کلمات کلیدی انگلیسی: Loess Plateau, Land use changes, RUSLE, SEDD, Soil erosion
نوع نگارش مقاله: مقاله پژوهشی (Research Article)
نمایه: Scopus - Master Journal List - DOAJ
شناسه دیجیتال (DOI): https://doi.org/10.1016/j.iswcr.2017.12.002
دانشگاه: Northwest A & F University – Institute of Soil and Water Conservation – China
ناشر: الزویر - Elsevier
نوع ارائه مقاله: ژورنال
نوع مقاله: ISI
سال انتشار مقاله: 2018
ایمپکت فاکتور: 2.470 در سال 2017
شاخص H_index: 9 در سال 2019
شاخص SJR: 0.667 در سال 2017
شناسه ISSN: 2095-6339
شاخص Quartile (چارک): Q2 در سال 2017
فرمت مقاله انگلیسی: PDF
تعداد صفحات مقاله انگلیسی: 10
وضعیت ترجمه: ترجمه نشده است
قیمت مقاله انگلیسی: رایگان
آیا این مقاله بیس است: خیر
کد محصول: E7530
فهرست انگلیسی مطالب

Abstract


1- Introduction


2- Catchment description and data collection


3- Methods and datasets


4- Results


5- Conclusion


Acknowledgements


References

نمونه متن انگلیسی مقاله

Abstract


The vegetation restoration project, named the Grain to Green Program, has been operating for more than ten years in the upper reaches of the Beiluo River basin, located in the Loess Plateau of China. It is significant to be able to estimate the success of preventing soil erosion. In this study, the Revised Universal Soil Loss Equation (RUSLE) and the Sediment Distributed Delivery (SEDD) model were used to assess the annual soil loss derived from water erosion. The results showed that the study area suffered from primary land use changes, with increasing grassland and forest and decreasing farmland from 1990 to 2010. Based on that, the average soil erosion modulus decreased from 18,189.72 t/(km2 a) in 1990– 7408.93 t/(km2 a) in 2000 and 2857.76 t/(km2 a) in 2010. Compared with 1990, the average soil erosion modulus decreased by 59.0% and 84.3% for 2000 and 2010, respectively. Benefiting from the increased vegetation coverage and improved ecological environment, the soil erosion in this study area clearly declined. This research also found that the distribution of the three years of soil erosion was similarly based on topographic factors. The soil erosion modulus varied with different land use types and decreased in the order of residential area4farmland4grassland4forest. The average soil erosion modulus gradually increased with the increase of the slope gradient, and 76.08% of the total soil erosion was concentrated in the region with a gradient more than 15 degrees. The soil erosion modulus also varied with slope aspects in the order of sunny slope4half-sunny slope4half-shady slope4shady slope. This research provides useful reference for soil and water conservation and utilization in this area and offers a technical basis for using the RUSLE to estimate soil erosion in the Loess Plateau of China.


Introduction


Soil erosion, a widespread form of soil degradation, is one of the most severe threats to the terrestrial ecosystems in the world (Pimental, Harvey, & Resosudarmo, 1995). It is directly related to decreased agriculture productivity and water pollution, and it has many negative effects on nature, such as degradation of soil structure, depletion of soil fertility, reducing the effective rooting depth, and ruining the most fundamental of all natural resources (Fitton, Saffouri, & Blair, 1995; Lal & Bruce, 1999; Nearing, 2005). The Chinese Loess Plateau is the most heavily eroded area in the world (Fu, 1989), and the soil erosion modulus with 5000– 10,000 mg km2 per year were larger than other areas (Chen, Wang, Fu, & Qiu, 2001). Since the 1950s, to control severe soil erosion, improve agriculture production and reduce sediment loads in the Yellow River, there has been implemented a lot of soil and water conservation projects in the Loess Plateau catchments.

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