Renchao Yang, A.J. (Tom) van Loon, Wei Yin, Aiping Fan and Zuozhen Han
Yang, R., Jin, Z., Van Loon, A.J., Han, Z. & Fan, A., 2016. Climatic and tectonic controls of lacustrine hyperpycnite origination in the Late Triassic Ordos Basin, centralChina: implications for unconventional petroleum development. American Association of Petroleum Geologists Bulletin (in press; preliminary version published online Ahead of Print 25 July 2016; DOI:10.1306/06101615095).
Yao, Y., Flemings, P. & Mohrig, D., 2012. Dynamics of dilative slope failure. Geology 40, 663-666.
Zou, C., Wang, L., Li, Y., Tao, S. & Hou, L., 2012
This paper presents a case study of the well irrigation in Guanzhong Plain during the Qing dynasty. The paper analyses the scales and results of well irrigation campaigns sponsored by the government in the mid-eighteen century and the late nineteenth century. Limited by the natural environment and technical conditions, the efficiency of well irrigation is poor. Farmers’ choices also affect the development of well irrigation. Moreover, a lack of management led to the unsustainable use of groundwater. Historical groundwater policies were mainly aimed at increasing agricultural production. Policies should be made according to local conditions. It is important to ensure the sustainable development of groundwater.
To investigate the retention efficiency and mechanism of nitrogen of Vegetative filter strips (VFSs) in the Danjiangkou Reservoir area, simulated runoff discharging experiments were carried out in a new-established Bermuda VFS. The results showed that the Bermuda VFS reduced 73.1-86.1 % of surface runoff through infiltration. The outflow rate of runoff increased first and then became stable with time. The concentration reduction rates (CRRs) and load reduction rates (LRRs) of NH3-N increased initially and then decreased with the increase of inflow concentration. The average CRRs and LRRs of NH3-N in three treatments ranged 66.1-90.3 % and 90.0-96.7 %, respectively. The concentration reduction of NH3-N was primarily achieved by soil adsorption. The optimal inflow concentration of NH3-N for the optimum CRR was between 0.65 and 3.52 mg/dm3. The CRRs and LRRs of NO3-N fluctuated between 6.8-14.0 % and 72.0-77.9 % in three treatments. The concentration reduction of NO3-N was primarily achieved by plant uptake and soil microbe assimilation. The optimal inflow concentration of NO3-N for optimum CRR exceeded 6.78 mg/dm3. The CRRs and LRRs of TN increased with the increase of inflow concentrations. The average CRRs in the low, moderate and high treatments reached 9.7, 14.8 and 27.4 %, respectively, and the average LRRs reached 72.1, 74.3 and 81.2 %, respectively. The optimal inflow concentration of TN for optimum CRR exceeded 10.21 mg/dm3. The study showed that Bermuda grass can retain nitrogen in runoff efficiently and should be promoted around the Danjiangkou reservoir.
Hua Li, A.J. [lpar]Tom[rpar] van Loon and Youbin He
with English abstract).
Xi, S.L., Li, Z.H., Wang, X. & Zheng, C.B., 2006. Distribution and exploration potential of Ordovician reservoir in Ordos Basin. Oil & Gas Geology 27, 405–412 (in Chinese with English abstract).
Yang, R., Fan, A., Han, Z. & Van Loon, A.J., 2017. Lithofacies and origin of the Late Triassic lacustrine muddy gravity-flow deposits and their soft-sediment deformation structures in the Ordos Basin, centralChina. Marine and Petroleum Geology 85, 194–219.
Yang, R., Van Loon, A.J., Jin, X., Jin, Z., Han, Z., Fan, A. & Liu, Q
New taxonomic and distributional data are provided for three eastern Asian species of Calamagrostis (Poaceae, Agrostidinae) in Vietnam: C. abnormis (Hook. f.) Shukla, C. extremiorientalis (Tzvel.) Prob. and C. tripilifera Hook. f. The new national record of C. extremiorientalis is reported here for Vietnam, where it was previously misidentified as C. elatior (Griseb.) A. Camus or Deyeuxia petelotii Hitchc. (= C. abnormis). The presence of C. tripilifera and C. abnormis in Vietnam is confirmed. Additional new provincial records of C. extremiorientalis from Japan’s Bonin Islands (also known as the Ogasawara Islands) and C. tripilifera from Daba Mountains in the northern Chongqing Municipality (Central China) are reported here. A key for identification of Calamagrostis species in Vietnam, nomenclatural data and information about geographical, altitudinal and habitat distributions are provided. Maps showing their complete distribution in eastern Asia are presented.
This article is about kiwifruit production in the north-western part of Húnán province in central China. It provides an overview of the kiwifruit industry in China and traces the development of kiwifruit production in this specific region. It presents the results of a case study conducted at Jíshǒu University in Xiǎngxī Tǔjīa and Miáo Autonomous Prefecture. Situated in a poor and economically underdeveloped area, the university concentrates on local minorities and the development of the region. It has initiated many projects to help in lifting poverty, one of them being the Kiwifruit Project, which encourages local farmers to get actively involved in kiwifruit production and processing. The paper highlights the cooperation between the academic institution, an industrial partner and government agencies in this endeavour. It addresses the problems and challenges that the establishment of a kiwifruit industry in Xiǎngxī has faced over a run of more than two decades, shows solutions based on innovation as in the form of developing new breeds or the introduction of organic farming, and evaluates the socioeconomic as well as the ecological impact the project has had on the local society and environment.
H.-Y. Gil, E. H. Lee, I.-Y. Choi, M. S. Roh and C. S. Chang
Pinus parviflora Siebold et Zucc. on Ulleung Island, Korea, has been proposed to be more closely related to P. armandii Franch. because both have long leaves and seeds that are either wingless or have very short wings. Randomly amplified polymorphic DNA (RAPD) markers using nine primers and sequence analysis of the trnG gene and the matK gene and morphological characteristics of seeds and cones were used to assess the genetic relatedness of this taxon on Ulleung Island with P. armandii in China and P. parviflora in Japan. This current study showed that Pinus armandii from China, P. parviflora from Japan, and P. parviflora populations of Ulleung Island formed distinct groups that were separated from each other. P. parviflora from Ulleung Island grouped with P. parviflora from Japan, rather than P. armandii from China based on the RAPD dendrogram and SNPs in matK. It is believed that P. parviflora on Ulleung Island is genetically well differentiated, indicating limited gene flow from Japan, although cones and seeds of P. parviflora on Ulleung Island are more similar to var. parviflora in southern Japan than P. armandii in central China. It seems that the entities that comprise P. parviflora exhibit widely overlapping ranges in morphological attributes except leaf length.
Tatiana G. Tashlykova, Tamara G. Ryashchenko, Anna A. Dolgaya and Elena A. Lukyanova
A debatable problem of the display of induced seismicity and its causes during the construction of reservoirs (Reservoir Induced Seismicity - RIS) is considered on the basis of an analysis of various publications. This paper describes the history of the evolution of ideas about the possibility of the activation of seismic events in the zones of influence of artificial reservoirs and examples of such activation in aseismic areas, which is a medium geological response to technogenic interference (e.g. Shivajisagar reservoir in West India, Mead reservoir in the USA, Danjiangkou Reservoir in central China, Nurek reservoir in Central Asia, Chirkey reservoir in Dagestan and other). The problem and reasons of induced seismicity (RIS) are debatable. however, published examples demonstrate the existence of this process. For reservoirs with different amounts of water RIS is an inseparable component of the natural and man-made geological process. The world statistics knows cases of seismicity intensification in areas near small man-made reservoirs with low pressure levels (Belecha in former Yugoslavia, Marathon in Greece, Grandval in France). In addition, it was found that the number of local earthquakes increased after creating a cascade of three small water reservoirs (Studen Kladenets, Kardzhali and Ivaylovgrad) in the basin of The Arda river (Bulgaria). The RIS examples listed above allow us to think that it is not only the creation of large reservoirs that change (in some cases, intensifies) the local seismicity in the surrounding area. No reservoir, no matter what size it is, is insured from such geological process. At the present time there are more than 100 places in the world with displays of induced seismicity due to reservoir construction. In India there are up to eight reservoirs with these problems. Induced seismicity associated with the influence of man-made water reservoirs, causes a specific geo-ecological risks to the surrounding areas.