[1]SUI Yuan-yuan,XU Xiao-hong,ZHANG Yu,et al.Analysis of Water Balance in Sloping Land and Forest Land in the Low Mountain and Mound Area in Mid-eastern Jilin Province—A Case Study of Xingmu Small Watershed in Dongliao County[J].Research of Soil and Water Conservation,2014,21(03):197-200,207.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
21
Number of periods:
2014 03
Page number:
197-200,207
Column:
Public date:
2014-06-28
- Title:
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Analysis of Water Balance in Sloping Land and Forest Land in the Low Mountain and Mound Area in Mid-eastern Jilin Province—A Case Study of Xingmu Small Watershed in Dongliao County
- Author(s):
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SUI Yuan-yuan1,2, XU Xiao-hong2, ZHANG Yu2, LIU Yan-jun2, ZHAO Shu-jun2, YAN Bai-xing1
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1. Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China;
2. Soil and Water Conservation Research Institute of Jilin Province, Changchun 130033, China
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- Keywords:
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agriculture engineering; water balance; multiple-tree water balance method; surface runoff
- CLC:
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P333.1
- DOI:
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- Abstract:
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In order to search for the redistribution law of precipitation resources in sloping land and forestand in northeast black soil area, the study was conducted in Xingmu Watershed of Dongliao County, Jilin Province, and water balance in sloping land and forest land in the research area had been studied by methods of data statistics analyses and field test. The results indicate that: (1) intra-annual precipitation between 1978 and 2008 showed a single-peak distribution type, the amount of precipitation in crop growth season was 511.16 mm which accounted for 81.4% of the annual total rainfall, the occurring days of precipitation during this period was 59.95 days which occupied 56.94% of the annual one; (2) field evapotranspiration from May to September was 53.05 mm, 99.84 mm, 170.06 mm, 124.33 mm and 55.88 mm, respectively. It accounted for 65%~88% of the total input precipitation and was the main water loss in the sloping land water balance. Variable quantity of water storage had a positive value in May, June, August and September and in this period the soil was in water storage condition, relatively, there was a negative value in July and soil was in water loss condition; (3) water quantity in aspen woodland was sufficient between June and September and variable quantity of water storage was 7.94 mm.