Runoff water management technologies for dryland agriculture on the Loess

Shangguan, Zhouping; Shao, Mingan; Lei, Tingwu; Fan, Tingting

doi:10.1080/13504500209470129

Cited by 41 publications

(33 citation statements)

References 11 publications

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“…The GSP is the precipitation occurred from October to next June, the growing season for winter wheat. The PUE (kgmm −1 ) was estimated by dividing grain yield (kg ha −1 ) by annual precipitation, as FSP can be stored in the soil and supplied to the subsequent wheat crop (Halvorson et al, 1999a;Musick et al, 1994;Shangguan et al, 2002). Precipitation was reasonably taken as the sole water source of each plot of the experiment because individual plots were surrounded with border dikes and there was no irrigation and deep underground water tables.…”

Section: Discussionmentioning

confidence: 99%

“…However, soils in the Loess Plateau are deep and of heavy loam textures and the water-holding capacities (~600 mm) in the region are very high (Zhu et al, 1983). In total, 35%-40% of FSP is stored in subsoil (Shangguan et al, 2002), which supplies water for the growth of crops until the critical periods of jointing and heading (Musick et al, 1994;Shangguan et al, 2002). Thus higher yields were generally obtained in these years with relatively higher FSP ( Figure 2 and Table 1).…”

Section: Interannual Variations In Grain Yield Under N Fertilizationmentioning

confidence: 98%

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Winter wheat grain yield associated with precipitation distribution under long-term nitrogen fertilization in the semiarid Loess Plateau in China

et al. 2012

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Section: Discussionmentioning

confidence: 99%

Section: Interannual Variations In Grain Yield Under N Fertilizationmentioning

confidence: 98%

Winter wheat grain yield associated with precipitation distribution under long-term nitrogen fertilization in the semiarid Loess Plateau in China

et al. 2012

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“…Presently, it is a critical question how to select proper plant species with strong drought-tolerance according to the specific environments in the process of vegetation recovery in the Loess Plateau (Shangguan et al 2002). Research on relations between plant WUE and climatic variables is especially important in this region.…”

Section: Introductionmentioning

confidence: 99%

Foliar δ<sup>13</sup>C values of nine dominant species in the Loess Plateau of China

Zheng¹

2007

Photosynt.

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The foliar stable carbon isotope compositions (δ 13 C) of nine dominant species in seven sites, Yangling, Yongshou, Tongchuan, Fuxian, Ansai, Mizhi, and Shenmu, standing from the south to the north in the Loess Plateau of China were studied. The results showed that foliar δ 13 C values ranged from -22.61 to -30.73 ‰ with an average of -27.23 ‰ in 141 C 3 plant samples collected from the Loess Plateau. Foliar δ 13 C values varied significantly (p<0.001) among the nine C 3 species, which were Pinus tabulaeformis Carr., Robinia pseudoacacia L., Zizyphus jujuba Mill. var. spinosus Hu., Rubus parvifolius L., Hippophae rhamnoides L., Caragana korshinskii Kom., Lespedeza davurica (Laxm.) Schindl., Artemisia sacrorum Ledeb. var. incana Mattf., and Agropyron cristatum Gaertn. Comparatively, R. pseudoacacia, H. rhamnoides, and C. korshinskii had much higher δ 13 C values than the other six species, while A. sacrorum had the lowest δ 13 C value. There was no significant difference in foliar δ 13 C value among five species, P. tabulaeformis, Z. jujuba, R. parvifolius, L. davurica, and A. cristatum. Considering the life forms categorized from nine C 3 species, trees and shrubs had significantly higher δ 13 C values than herbs (p<0.001). The deciduous tree R. pseudoacacia had much higher δ 13 C value than the evergreen tree P. tabulaeformis (p<0.01). Among the four shrubs, foliar δ 13 C values in H. rhamnoides and C. korshinskii were markedly higher (p<0.01) than those in Z. jujuba and R. parvifolius. Among the three herbs, L. davurica and A. cristatum had significantly higher δ 13 C values than A. sacrorum (p<0.01). Leguminous species such as R. pseudoacacia, C. korshinskii, and L. davurica as well as a non-leguminous species with nitrogen-fixation capacity, H. rhamnoides, had higher δ 13 C values than other non-leguminous species with same life-form. The mean δ 13 C value increased by about 7 % from Yangling in the south to Shenmu in the north as climatic drought increased, and foliar δ 13 C values differed much (p<0.001) among the seven sites. For nine species in the Loess Plateau, foliar δ 13 C values were significantly and negatively (p<0.001) correlated with the mean annual precipitation, moreover, an increase of 100 mm in annual precipitation would result in a decrease of 1.2 ‰ in δ 13 C value.

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“…Winter wheat yield and water use efficiency depend strongly on soil available water due to less rainfall and uneven rainfall distribution [1]. The importance of storing soil water for increasing wheat yield and water use efficiency has been supported by many dryland studies including those in Loess Plateau of China by Shangguan et al [2] and Wang et al [3] and in the dryland area of Australia by Tullberg et al [4]. Traditional farming resulted in serious loss of precipitation collected during the raining season [5], poor soil physical and chemical properties [6] and low available water because of high potential evaporation, bare fallowing and over-tillage, therefore reduced crop yield and water use efficiency [7].…”

Section: Introductionmentioning

confidence: 99%

“…Traditional farming resulted in serious loss of precipitation collected during the raining season [5], poor soil physical and chemical properties [6] and low available water because of high potential evaporation, bare fallowing and over-tillage, therefore reduced crop yield and water use efficiency [7]. Shangguan et al [2] reported that fallow rainfall storage efficiency was only 35 to 40% under traditional tillage in Loess Plateau. Wang et al [8] showed that crop yield and water use efficiency tended to be lower in traditional tillage in Loess Plateau, especially in the years of low rainfall, due to damaged soil structure and decreased soil moisture.…”

Section: Introductionmentioning

confidence: 99%

Traffic and Tillage Effects on Soil Water Conservation and Winter Wheat Yield in the Loess Plateau, China

Chen¹

2013

Ecological Chemistry and Engineering S

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Abstract:In semi-humid Loess Plateau of northern China, water is the limiting factor for rain-fed crop yields. In this region, long-term traditional ploughing with straw removal has resulted in poor soil structure, water conservation and crop yield. Controlled traffic, combined with no-till and straw cover has been proposed to improve soil water conservation and crop yield. From 1999 to 2007, a field experiment on winter wheat was conducted in the dryland area of Loess Plateau of northern China, to investigate the effects of traffic and tillage on soil water conservation and crop yield. The field experiment was conducted using two controlled traffic treatments, no tillage with residue cover and no compaction (NTCN), shallow tillage with residue cover and no compaction (STCN) and one conventional tillage treatment (CK). Results showed that controlled traffic system reduced soil compaction in the top soil layer, increased soil water infiltration. The benefit on soil water infiltration translated into more soil conservation (16.1%) in 0-100 cm soil layer in fellow period, and achieved higher soil water availability at planting (16.5%), with less yearly variation. Consequently, controlled traffic system increased wheat yield by 12.6% and improved water use efficiency by 5.2%, both with less yearly variation, compared with conventional tillage. Within controlled traffic treatments, no tillage treatment NTCN showed better overall performance. In conclusion, controlled traffic combined with no-tillage and straw cover has higher performance on conserving water, improving yield and water use efficiency. It is a valuable system for soil and water conservation for the sustainable development of agriculture in dryland China.

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Runoff water management technologies for dryland agriculture on the Loess

Cited by 41 publications

References 11 publications

Winter wheat grain yield associated with precipitation distribution under long-term nitrogen fertilization in the semiarid Loess Plateau in China

Winter wheat grain yield associated with precipitation distribution under long-term nitrogen fertilization in the semiarid Loess Plateau in China

Foliar δ<sup>13</sup>C values of nine dominant species in the Loess Plateau of China

Traffic and Tillage Effects on Soil Water Conservation and Winter Wheat Yield in the Loess Plateau, China

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