Ecological engineering of ground cover vegetation promotes biocontrol services in peach orchards

Wan, Nian‐Feng; Ji, Xiang‐Yun; Gu, Xing; Jiang, Jie‐Xian; Wu, Jihua; Li, Bo

doi:10.1016/j.ecoleng.2013.12.033

Cited by 29 publications

(21 citation statements)

References 16 publications

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“…Large-scale agricultural production is a major focus of ecological engineering (Wu et al, 2013;Brix et al, 2014), and many studies have concluded that such production promotes the application of biological control (Wan et al, 2014b), energyefficient of crop production and environmental quality (Smukler et al, 2008). According to preliminary estimates, if the paddy field on Chongming Eco-island were all managed using the principles of large-scale production, the abundance of C. medinalis could decrease by more than ten percent, eliminating serious outbreaks of this pest.…”

Section: Discussionmentioning

confidence: 99%

The occurrence of rice leaf roller, Cnaphalocrocis medinalis Guenée in the large-scale agricultural production on Chongming Eco-island in China

Wan

Cao

et al. 2015

Ecological Engineering

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Section: Discussionmentioning

confidence: 99%

The occurrence of rice leaf roller, Cnaphalocrocis medinalis Guenée in the large-scale agricultural production on Chongming Eco-island in China

Wan

Cao

et al. 2015

Ecological Engineering

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“…The study area belongs to a typical mountainous area in northern China, with serious soil and water erosion. Since the 1980s, with the implementation of the Return Farmland to Forests Project, many afforestation vegetation types have been developed, and many researches have been written on ecological afforestation technologies and soil hydrological benefits (Wan, Ji, & Gu, ; Yang, Hu, & Luo, ). However, there are generally few reports on the soil improvement benefits of the Return Farmland to Forests Project, and it is not beneficial to assess the ecological effects of the Return Farmland to Forests Project.…”

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

Spatial heterogeneity distribution of soil total nitrogen and total phosphorus in the Yaoxiang watershed in a hilly area of northern China based on geographic information system and geostatistics

Liu

Gao

Zhang

et al. 2016

Ecology and Evolution

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Soil total nitrogen (STN) and total phosphorus (STP) are important indicators of soil nutrients and the important indexes of soil fertility and soil quality evaluation. Using geographic information system (GIS) and geostatistics, the spatial heterogeneity distribution of STN and STP in the Yaoxiang watershed in a hilly area of northern China was studied. The results showed that: (1) The STN and STP contents showed a declining trend with the increase in soil depth; the variation coefficients (C v ) of STN and STP in the 0-to 10-cm soil layer (42.25% and 14.77%, respectively) were higher than in the 10-to 30-cm soil layer (28.77% and 11.60%, respectively). Moreover, the C v of STN was higher than that of STP.(2) The maximum C 0 /(C 0 + C 1 ) of STN and STP in the soil layers was less than 25%, this indicated that a strong spatial distribution autocorrelation existed for STN and STP; and the STP showed higher intensity and more stable variation than the STN. (3) From the correlation analysis, we concluded that the topographic indexes such as elevation and slope direction all influenced the spatial distribution of STN and STP (correlation coefficients were 0.688 and 0.518, respectively). (4) The overall distribution of STN and STP in the Yaoxiang watershed decreased from the northwest to the southeast. This variation trend was similar to the watershed DEM trend and was significantly influenced by vegetation and topographic factors. These results revealed the spatial heterogeneity distribution of STN and STP, and addressed the influences of forest vegetation coverage, elevation, and other topographic factors on the spatial distribution of STN and STP at the watershed scale. K E Y W O R D Sgeographic information system, geostatistics, soil total nitrogen, soil total phosphorus, spatial heterogeneity distribution, Yaoxiang watershed | INTRODUCTIONAs the basic building blocks of all known forms of life on Earth, soil total nitrogen (STN) and total phosphorus (STP) are significant evaluation indexes of soil fertility in the terrestrial ecosystem (Gao, Yang, & Liu, 2015;Zhang, Cha, & Shen, 2011). Fully understanding the characteristics of their spatial heterogeneity distribution at the watershed scale is the basis of reasonable evaluation to soil nutrients. In addition to providing nutrient sources for vegetation growth, they also affect the formation of the soil structure, soil biodiversity, and soil physical stability of the resistance to erosion, and so on (Kay & Rainer, 2008).Soil nitrogen and phosphorus are important parts of the geobiochemical circulation. The unreasonable distribution of soil nitrogen and phosphorus is an important factor causing eutrophication in permanent wetlands such as rivers and lakes (Li et al., 2008). The enrichment nutrients in water body such as N and P, lead to some algae proliferate abnormally. As the results of transparency of water and dissolved oxygen decreasing, a large number of aquatic plants died. With the problems of nonpoint source pollution and eutrophication becomin...

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“…However, chemical insecticides often cause serious environmental and food safety problems, so it might be best to minimize the use of chemical insecticides, or use them carefully or selectively 3 4 5 . In order to control insect pests and to avoid the soil contamination by chemical insecticides, researchers have explored the strategies such as biological control 20 , physical control 21 and cultural control 22 23 24 . Here we used the strategies of optimizing insecticide variety structure (the use of eight slightly toxic insecticides was rotated, and the four moderately toxic insecticides, 48% Chlorpyrifos EC, 20% fenvalerate EC, 18% Bisultap AS and 2.5% Deltamethrin, were excluded), installing trap devices and installing lamps to control insect pests in cabbage fields.…”

Section: Discussionmentioning

confidence: 99%

A modelling methodology to assess the effect of insect pest control on agro-ecosystems

Wan

Jiang

et al. 2015

Sci Rep

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The extensive use of chemical pesticides for pest management in agricultural systems can entail risks to the complex ecosystems consisting of economic, ecological and social subsystems. To analyze the negative and positive effects of external or internal disturbances on complex ecosystems, we proposed an ecological two-sidedness approach which has been applied to the design of pest-controlling strategies for pesticide pollution management. However, catastrophe theory has not been initially applied to this approach. Thus, we used an approach of integrating ecological two-sidedness with a multi-criterion evaluation method of catastrophe theory to analyze the complexity of agro-ecosystems disturbed by the insecticides and screen out the best insect pest-controlling strategy in cabbage production. The results showed that the order of the values of evaluation index (RCC/CP) for three strategies in cabbage production was “applying frequency vibration lamps and environment-friendly insecticides 8 times” (0.80) < “applying trap devices and environment-friendly insecticides 9 times” (0.83) < “applying common insecticides 14 times” (1.08). The treatment “applying frequency vibration lamps and environment-friendly insecticides 8 times” was considered as the best insect pest-controlling strategy in cabbage production in Shanghai, China.

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Ecological engineering of ground cover vegetation promotes biocontrol services in peach orchards

Cited by 29 publications

References 16 publications

The occurrence of rice leaf roller, Cnaphalocrocis medinalis Guenée in the large-scale agricultural production on Chongming Eco-island in China

The occurrence of rice leaf roller, Cnaphalocrocis medinalis Guenée in the large-scale agricultural production on Chongming Eco-island in China

Spatial heterogeneity distribution of soil total nitrogen and total phosphorus in the Yaoxiang watershed in a hilly area of northern China based on geographic information system and geostatistics

A modelling methodology to assess the effect of insect pest control on agro-ecosystems

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