Zhangbei Agricultural Resource and Ecological Environment Key Field Research Station

Zhangjiakou, China

Zhangbei Agricultural Resource and Ecological Environment Key Field Research Station

Zhangjiakou, China
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Yang X.,Hebei University | Yang X.,Zhangbei Agricultural Resource and Ecological Environment Key Field Research Station | Dong J.,Hebei University | Li R.,Hebei University | And 3 more authors.
Shengtai Xuebao/ Acta Ecologica Sinica | Year: 2010

Bashang Plateau is situated in the northwestern of Hebei Province (41°09'-42°20', 113°70'- 116°30', 1400 - 1600m). It is an arid region with abundant solar energy resources, large day and night temperature difference, 387. 6 mm average annual precipitation, and 90 - 100 days frostless period, which leads to the period of crop cultivation is only limited from June to September. Bashang Plateau has complex geomorphic feature, and diversity of plateau vegetations is abundant, such as kinds of vegetables, alfalfa, naked oats, sugarbeet, potato, natural pasture, and shelterbelt etc. Bashang Plateau, where major planting vegetable are cruciferous, has been the fifth vegetable production base of China, and been the semiarid cold farming-grazing transitional zone. In order to identify different species, moths in Agro-Zhangbei station were monitored with ultraviolet light-trap from June to September in 2006 and from May to September in 2007. To collect the trapping insects, the Light-trap was turned on from half past seven in the afternoon until six in the next morning. The moths were frozen 3 to 4 hours or fumigated in poisonous bucket, and than were made to be specimens, classified, identified, and counted. The study of dynamic characteristics of moths community structure will provide basic data of insects for resource utilization and environmental quality monitoring in Bashang Plateau. Data of insects collected during the survey were listed in Excel and constructed on the species abundance, the indices of diversity (H'), evenness (J'), specific richness (5), and individual number (N). The status of Bashang Plateau has been analyzed by using the curve of the moth community species abundance, the indices of diversity, the connection of the evenness and the indices of diversity, etc. The results show that a total of 247 moth species belonging to 173 genera in 16 families were collected from northwestern Bashang Plateau. Noctuidae, including 69 genera and 122 species, was the biggest family. Other three families, Geometridae including 26 genera and 31 species, Pyralididae including 22 genera and 27 species, and Tortricidae including 18 genera and 19 species also have abundant species diversity. The small families were Cossidae, Oecophoridae, Gelechiidae, Yponomeutidae, and Pterophovidae. The dominant species were Scotogramma trifolii(Rottemberg), Loxostege sticticalis Linnaeus, and Plutella xylostella Linnaeus. The diversity index, specific richness and individual number increased from May to September. The significant correlation was found between indices of diversity and evenness (r =0. 9477),and indices of diversity and number of species (r =0. 7785), indices of diversity and number of individuals (r =0.9704) were significantly correlated. The index of community similarity of the moths was obvious in different months, and the biggest difference (r - 0. 7241) appeared between July and Auguest. The curve of the moth species abundance was in accordance with the log-normal hypothesis, and an equation was obtained as S(R) =48exp -[0.2 (R - 2)] 2. Species of moths in Bashang Plateau was rich, and the community was stable, which indicates that the environmental conditions which moths depend on in Bashang Plateau are stable, and the ecological environmental quality preserves quite well.


Huang W.,Hebei North University | Huang W.,Zhangbei Agricultural Resource and Ecological Environment Key Field Research Station | Zhang J.-H.,Hebei North University | Zhang J.-H.,Zhangbei Agricultural Resource and Ecological Environment Key Field Research Station | And 5 more authors.
Chinese Journal of Ecology | Year: 2015

To select an efficient super absorbent and improve sugarbeet survival rate and yield, the effect of different super absorbents on sugarbeet growth and yield was studied in both field and greenhouse in the semi arid region of northwest Hebei Province. Of the four super absorbents studied, TM-3005KM had an obvious promotional effect. The survival rate of sugarbeet in the TM-3005KM treatment was 7.22% higher than that of the control. At the end of the seedling stage, the physiological indexes of the plants treated with TM-3005KM were obviously higher than those subjected to the other treatments. Root fresh weight, root dry weight, stem+leaf fresh weight, and stem+leaf dry weight following TM-3005KM treatment were 27.83%, 38.46%, 65.21% and 59.15% higher than those of the control, respectively. The spectral curve of sugarbeet leaf chlorophyll content exhibited a single absorption peak that reached its maximum during the phyllome rapid growth stage. At all stages, the chlorophyll contents of super absorbent treatments were higher than that of the control, with the highest content observed in the TM-3005KM treatment. Changes in photosynthetic rate in all treatments followed a trend similar to that of the chlorophyll content. In sugarbeet leaves, proline content first increased, then declined, then rose again, and finally declined; at all stages, proline content was the lowest in TM-3005KM treatment and highest in the control. Compared with the other treatments, transfer of soluble sugar from leaves to roots occurred earlier and more stably in the treatment of TM-3005KM. The biomass, economic yield, and sugar refractive index values in the TM-3005KM treatment were respectively 50.08%, 47.53% and 2.10% higher than in the control. These results indicated that TM-3005KM was highly effective for enhancing the survival rate, seedling growth and drought resistance of sugarbeet, thereby contributing to increases in chlorophyll content, photosynthetic rate, and yield. © 2015, editorial Board of Chinese Journal of Ecology. All rights reserved.


Huang W.,Hebei North University | Huang W.,Zhangbei Agricultural Resource and Ecological Environment Key Field Research Station | Zhang J.-H.,Hebei North University | Zhang J.-H.,Zhangbei Agricultural Resource and Ecological Environment Key Field Research Station | And 5 more authors.
Chinese Journal of Ecology | Year: 2015

We analyzed the effects of applying a water absorbent on the growth and yield of potato (Solarium tuberosum cv. Xiabodi). Four treatments were considered, including hole pattern, seed coating, seed dressing with water absorbent, and no water absorbent as the control. The results showed that the emergence rate and seedling rate of potato plants were increased by applying the water absorbent. The emergence rate and seedling rate when the water absorbent was added to the hole were 22% and 4% higher than those in the control, respectively. Plant height and plant width increased as the potato plants grew. The plants grown with water absorbent added to the hole was 44% higher than that of the control during the starch accumulation period. The highest chlorophyll content and photosynthetic rate were found for plants grown with water absorbent added to the hole. The proline content of plant tissues increased as plants grew, and was lower in control plants than in that grown with water absorbent added to the hole; the proline content in plants in the other treatments was lower than that in the control. The soluble sugar content first increased and then decreased as sugars were transported into the tubers. The plant fresh weight and dry weight showed similar increasing trends; they increased rapidly after the tuber initiation stage in all treatments. At the starch accumulation stage, the fresh and dry weights were higher in the plants grown with water absorbent than in the control plants. The highest yields were from plants with water absorbent added to the hole (57% higher yield than that of the control) , followed by plants grown from seeds coated with the water absorbent. These results showed that addition of water absorbent resulted in higher yields of potato cultivated in the dry environment. © 2015, editorial Board of Chinese Journal of Ecology. All rights reserved.


Du X.,Agricultural University of Hebei | Du X.,Zhangbei Agricultural Resource and Ecological Environment Key Field Research Station | Dou T.-L.,Zhangbei Agricultural Resource and Ecological Environment Key Field Research Station | Feng L.-X.,Agricultural University of Hebei | And 4 more authors.
Agricultural Sciences in China | Year: 2010

Young elm trees belt-pumpkin strip intercropping was studied to solve the actual problem of resource losses in the large barren area resulted from reconverting cultivated land into forest in the agro-pastoral ecotone in northern China. The final objective was to realize effective utilization of the barren land with both ecological improvement and economic development. Field experiments were conducted together with laboratory analysis. The results indicated that the soil moisture level was remarkably increased in young elm trees belt-pumpkin strip intercropping because the pumpkin vines covered the gap between pumpkin planting-furrow and elm trees belt. The water use efficiency of the intercropping system was increased by 23.7-163.3% as compared with the single cropping. Elm trees belt-pumpkin strip intercropping changed the sequential succession trend of the grasses growing in the gap of the pumpkin planting-furrow. The annual grasses become the dominant vegetation. The nutritive value as fodder and yield of the annual grasses were also increased remarkably. The biomass of pumpkin, elm trees and grasses under intercropping increased by 24.4, 28.4 and 144.4%, respectively, as compared with those under single cropping. The land use efficiency was increased by 132%. It was also indicated that the soil erosion from the intercropping land was not increased due to pumpkin plantation. The differences in the soil erosion among intercropped area, elm trees belt and pumpkin strip with single cropping were not remarkable. Therefore, it was concluded that young elm trees belt-pumpkin strip intercropping is an effective way to utilize the barren land between the young elm trees belt and realize synergistic enhancement of ecological benefit and economic profit. © 2010 Chinese Academy of Agricultural Sciences.


Wang P.,Agricultural University of Hebei | Zhang L.-f.,Agricultural University of Hebei | Zhang L.-f.,Zhangbei Agricultural Resource and Ecological Environment Key Field Research Station | Li M.,Agricultural University of Hebei
Chinese Journal of Ecology | Year: 2012

By the method of establishing artificial moisture gradient and based on completely controlling environment, an experiment was designed to study the relationships between soil water stress and flax (Linum usitatissimum) seedling emergence as well as the soil moisture critical value for the emergence resisting soil drought, aimed to ensure the spring-sowing crop seedlings safely in northern arid or semiarid regions of China. The responses of the emergence to soil moisture exhibited 3 types, i. e., jump, ascending, and S-curve. The moisture-sensitive domain of the emergence was from 3. 5% to 6. 0% for sandy chestnut soil, and from 9. 0% to 15. 0% for meadow chestnut soil. Taking the emergence rate as a standard, the soil moisture threshold value was 5. 5% for sandy chestnut soil, and 13. 0% for meadow chestnut soil. With the drought-resistance and conserving seedling as the standard, the soil moisture threshold value was 5. 0% for sandy chestnut soil, and the seeding level should be increased to 1. 52 times of that in average years. When the soil moisture threshold value for meadow chestnut soil was 12. 0%, the seeding level should be increased to 1. 72 times of that in average years.


Wang Y.,Zhangbei Agricultural Resource and Ecological Environment Key Field Research Station | Wang Y.,Agricultural University of Hebei | Liu Y.,Zhangbei Agricultural Resource and Ecological Environment Key Field Research Station | Liu Y.,Agricultural University of Hebei | And 4 more authors.
Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering | Year: 2014

Taking a ten-year naked oats field experiment site in Zhangbei county of Hebei province as the test object, this paper studied the effects of different tillage modes (no tillage, subsoiling tillage, and conventional tillage) on the soil physical characteristics and naked oats growth in chestnut soil. The no tillage treatment soil was undisturbed from last year's harvesting to sowing, with 15-22 cm stubbles; broad-spectrum herbicide was used in soil treatment before planting and sprayed in seedling. The subsoiling tillage treatment plowed the soil after the previous year's harvest, used the self-developed 'Parallel rod without wall subsoiling plow' (Patent No.: 2011202468728) with a plowed depth of 15-22 cm, and was sowed and fertilized in the same manner as the no tillage treatment. The conventional tillage treatment plowed with a conventional spade plow after the previous year's harvest, with a plowed depth of about 18 cm; this treatment was also rotary tilled to a depth of 10 cm before sowing and sowed with ordinary seeder. The sowing rate and fertilization were the same as the no tillage treatment. The results showed that the subsoiling tillage and conventional tillage can significantly reduce the soil bulk density from the sowing to jointing stage; in the sowing stage, no-tillage soil bulk density was 1.49 g/cm3, subsoiling tillage and conventional tillage bulk densities were 1.31 and 1.30 g/cm3, respectively. The impact of tillage methods was similar on soil water content. No tillage significantly increased soil hardness. In the jointing stage, no tillage soil hardness was 58.51 kg/cm2, 1.74 times higher than with subsoiling tillage, and 2.53 times higher than with conventional tillage. The test data were analyzed with SAS software, and a model representing the relationship among soil hardness, soil bulk density, and soil water content was proposed. The model showed that under the condition of high soil bulk density (1.53 g/cm3), soil hardness is more sensitive to soil water content, decreasing with soil water content (3.44%-11.94%) from 79.06 kg/cm2 to 28.06 kg/cm2. Under the condition of low soil water content (3.44%), soil hardness is more sensitive to soil bulk density, rising with soil bulk density (1.23-1.53 g/cm3) from 12.46 kg/cm2 to 79.06 kg/cm2. No tillage decreased naked oats' height and leaf area index, and grain number per ear and ears per hectare were significantly reduced, with 413.79 kg/hm2 economic yield, 62.27% and 51.64% of the economic yields of subsoiling tillage and conventional tillage, respectively. Compared with subsoiling tillage and conventional tillage, no tillage was higher in soil bulk density, higher in soil hardness, and significantly reduced in the yield of naked oats. Among the three kinds of tillage, subsoiling tillage provides both ecological and economic benefits.

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