Effects of shifting surplus farm labor and grain subsidy on land use in Loess Plateau of Northern Shaanxi Province, China

2011 ◽  
Vol 6 (26) ◽  
Author(s):  
LiuSan Cheng
Keyword(s):  
Land Use ◽  
Loess Plateau ◽  
Shaanxi Province ◽  
Farm Labor ◽  
Northern Shaanxi ◽  
Grain Subsidy

scholarly journals Estimating Changes in the Green Water Productivity of Cropping Systems in Northern Shaanxi Province in China’s Loess Plateau

Water ◽  
2018 ◽  
Vol 10 (9) ◽  
pp. 1198 ◽  
Author(s):  
Jinping Wang ◽  
Jinzhu Ma ◽  
Afton Clarke-Sather ◽  
Jiansheng Qu
Keyword(s):  
Loess Plateau ◽  
Hydrological Modeling ◽  
Meteorological Data ◽  
Water Productivity ◽  
Experimental Studies ◽  
Northern Region ◽  
Green Water ◽  
Shaanxi Province ◽  
Cropping Patterns ◽  
Northern Shaanxi

Water shortages limit agricultural production in the world’s arid and semi-arid regions. The Northern region of China’s Shaanxi Province, in the Loess Plateau, is a good example. Raising the water productivity of rainfed grain production in this region is essential to increase food production and reduce poverty, thereby improving food security. To support efforts to increase crop water productivity (CWP), we accounted for limitations of most existing studies (experimental studies of specific crops or hydrological modeling approaches) by using actual field data derived from statistical reports of cropping patterns. We estimated the CWPs of nine primary crops grown in four counties in Northern Shaanxi from 1994 to 2008 by combining statistics on the cultivated area and yields with detailed estimates of evapotranspiration based on daily meteorological data. We further calculated both the caloric CWP of water (CCWP) and the CWP of productive water (i.e., water used for transpiration). We found that regional CWP averaged 6.333 kg mm–1 ha–1, the CCWP was 17,683.81 cal mm–1 ha–1, the CWP of productive green water was 8.837 kg mm–1 ha–1, and the CCWP of productive green water was 24,769.07 cal mm–1 ha–1. Corn, sorghum, and buckwheat had the highest CWP, and although potatoes had the largest planted area and relatively high CWP, they had a low CCWP.

scholarly journals The relationships between land use and soil conditions in the hilly area of the loess plateau in northern Shaanxi, China

CATENA ◽  
2000 ◽  
Vol 39 (1) ◽  
pp. 69-78 ◽  
Author(s):  
Bojie Fu ◽  
Liding Chen ◽  
Keming Ma ◽  
Huafeng Zhou ◽  
Jun Wang
Keyword(s):  
Land Use ◽  
Loess Plateau ◽  
Soil Conditions ◽  
The Loess Plateau ◽  
Hilly Area ◽  
Northern Shaanxi

scholarly journals The effects of land-use combinations on soil erosion: a case study in the Loess Plateau of China

2009 ◽  
Vol 33 (6) ◽  
pp. 793-804 ◽  
Author(s):  
Bo-Jie Fu ◽  
Ya-Feng Wang ◽  
Yi-He Lu ◽  
Chan-Sheng He ◽  
Li-Ding Chen ◽  
...  
Keyword(s):  
Land Use ◽  
Soil Erosion ◽  
Loess Plateau ◽  
Soil Layer ◽  
Shaanxi Province ◽  
Land Uses ◽  
The Loess Plateau ◽  
Factors Affecting ◽  
Mature Forest ◽  
Young Forest

Land use is one of the key factors affecting soil erosion in the Loess Plateau of China. This paper examines soil erosion under different land uses and land-use combinations using 137 Cs tracing in the Yangjuangou Catchment, a tributary of the Yan River in the Loess Plateau of Northern Shaanxi Province. The results show that the order of 137Cs activity in different land uses decreases sequentially from mature forest to grass to young forest to orchard to terrace crop, indicating that the mature forests had the lowest erosion rates while the terraced cropland produced the highest erosion amount. The majority of 137Cs is distributed in the top 0—10 cm of the soil layer. The 137Cs activity in mature forest and grass soil is significantly higher than in other land uses. Three land-use combinations on the hillslope were selected to study the relationship between land-use combination and soil erosion. The mixtures of ‘grass (6 years old) + mature forest (25 years old) + grass (25 years old)’ and ‘grass (6 years old) + young forest (6 years old) + mature forest (25 years old) + grass (25 years old)’ are better for soil erosion control, lowering soil erosion amount by 42% compared with a land-use combination of ‘grass (6 years old) and shrub (6 years old)’. The results provide an important basis for optimizing land-use combinations to control soil erosion on slopes and may also result in important ecological benefits.

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