کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6412766 1629935 2014 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Comparison of deep soil moisture in two re-vegetation watersheds in semi-arid regions
ترجمه فارسی عنوان
مقایسه رطوبت خاک عمیق در دو حوضه آبخیز مجددا در مناطق نیمه خشک
کلمات کلیدی
رطوبت خاک، تنوع فضایی، بازسازی گیاهان دارویی، ساختار استفاده از زمین، لس فلوت،
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات فرآیندهای سطح زمین
چکیده انگلیسی


- Deep soil moisture was compared between two watersheds with different land uses.
- Introduced vegetation have significantly lower soil moisture.
- Land use pattern have correlation with deep soil moisture spatial variability.
- Introduced vegetation diminish spatial heterogeneity of deep soil moisture.

SummarySoil moisture stored below rainfall infiltration depth is a reliable water resource for plant growth in semi-arid ecosystems. Along with the large-scale ecological restoration in Chinese Loess Plateau, identifying the ecohydrological response to human-introduced vegetation restoration has become an important issue in current research. In this study, soil moisture data in depth of 0-5 m was obtained by field observation and geostatistical method in two neighboring re-vegetation watersheds. Profile characteristics and spatial pattern of soil moisture was compared between different land use types, transects, and watersheds. The results showed that: (1) Introduced vegetation drastically decreased deep soil moisture when compared with farmland and native grassland. No significant differences in deep soil moisture were found between different introduced vegetation types. (2) An analysis of differences in soil moisture for different land use patterns indicated that land use had significant influence on deep soil moisture spatial variability. Land use structure determined the soil moisture condition and its spatial variation. (3) Vegetation restoration with introduced plants diminished the spatial heterogeneity of deep soil moisture on watershed scale. The improvement of land use management was suggested to improve the water management and maintain the sustainability of vegetation restoration.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hydrology - Volume 513, 26 May 2014, Pages 314-321
نویسندگان
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