Analyzing the Characteristics of Raindrop Size Distributions of the“7·20”Torrential Rain in Zhengzhou on 20 July 2021 by Jun WANG, Baojun CHEN, Shuling ZHOU, Chang LIU

“…The microphysical characteristics is important for the formation mechanism of rainstorm which is the result of multi-scale conditions and the interactions of macro and micro physical processes.From 15:25 （Beijing Time， the same as after） to 17:27 on July 20， 2021， a strong mesoscale convective system affected Zhengzhou， and the accumulated precipitation was 312.1 mm， which was referred to as extreme rainstorm.Excluding the period of extremc rainstorm， from 08:00 to 20:00 on the July 20， the accumulated precipitation was 183.4 mm， which is referred to as rainstorm.Based on the observations data of disdrometer at Zhengzhou station， the characteristics of raindrop size distributions（DSDs） and integral parameters of extreme rainstorm and rainstorm are analyzed.The results showed that： （1）In rainstorm， the average DSDs increased with the increase of rain rate.The concentrations of diameter less than 1 mm increased less， and concentrations of large diameter which is greater than 2 mm increased faster.In extreme rainstorm， the average DSDs increased with the increase of rain rate， and the concentrations of each diameter increased significantly.Meanwhile， the differences between the concentrations of average DSDs at different rain rate were complex.Somewhile there were distinct differences in the concentrations of small raindrops， and there were also great differences in the concentrations of large raindrops.The differences of average DSDs of different rain rate categories lead to different parameters variation with the increase of rain rate.For rainstorm， the Dm increased with the increase of rain rate， while lgNw increased slightly， indicating that the main source for the increase of rainstorm intensity was the increase of particle diameter， and the secondary factor was increase of particle concentrations.For extreme rainstorm， when the rain rate was between 50 and 100 mm·h-1， Dm（lgNw） increased （decreased） with the increase of rain rate， while the rain rate was greater than 100 mm·h-1， Dm and lgNw increased slightly with the increase of rain rate， suggesting that the formation mechanisms of DSD in different rain rate categories of extreme rainstorm may be different.（2）The distribution of lgNw-Dm showed that the DSDs of rainstorm were mainly continental-like， and its formation mechanism was mainly warm-ice mixture process and a small amount of ice-based process.The scatter plot of lgNw-Dm ofextreme rainstorm with rain rate less than 100 mm·h-1 mainly clustered on the upper and right side of the continental-like area， and the formation mechanism of extreme rainstorm was mainly warm-ice mixture process and ice-based process； the scatter plot of lgNw-Dm of extreme rainstorm with rain rategreater than 100 mm·h-1were mainly distributed on the upperside of the continental -like area， and the formation mechanism was mainly warm-ice mixture process.（3）There were a small proportion（about 2.8%）of the equilibrium raindrop size distribution（EDSD） and a large proportion （about 60.5%）of transition DSDs in rainstorm.There was no EDSD in the extreme rainstorm， while the transition DSDs had a very high proportion （about 83.9%）， indicating that the breakup process played a much more role in the extreme rainstorm.…”
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UPM's rice research plot in Bintulu to boost state's agricultural development by The Borneo Post Sarawak

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Establishment of a 10-ha permanent plot in Ayer Hitam Forest Reserve, Selangor by Saari, Nurul Shida, S. M., Shafiq, Ibrahim, Faridah Hanum

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Establishment of critical values for AMH screening with PCOS based on restricted cubic spline plots by Zhen Wang, Xiaojing Teng, Yonghai Shen, Yanfei Liu

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The effect of organic fertilizer on the changes of soil physical properties in different rotations cultivation in permanent plots by mohammadReza Emdad, Arash Tafteh, Seyed Ali Ghaffari Nejad

“…This research was conducted in the form of randomized complete blocks in five treatments and three replications in plots with an area of 200 square meters. The treatments include 1- no planting (T1), 2- control without fertilizer use (T2), 3- application of nitrogen, phosphorus, and potassium chemical fertilizers based on soil test (T3), 4- annual application of 20 ton/h of animal manure (T4) and annual application 20 ton/h of compost (T5). …”
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Rainfall trend analysis using box plot method: case study UMP Campus Gambang and Pekan by Nadiatul Adilah, Ahmad Abdul Ghani, Mohamad Zarif, M., Mohamad Idris, Ali

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How do ground litter and canopy regulate surface runoff?—a paired-plot investigation after 80 years of broadleaf forest regeneration by Anand Nainar, Koju Kishimoto, Koichi Takahashi, Mie Gomyo, Koichiro Kuraji

“…Surface runoff was measured by a tipping-bucket recorder, and rainfall by a tipping-bucket rain gauge. From May 2016 to July 2019, 20, 54, and 42 runoff events were recorded in the no-treatment (NT), litter removed before clearcutting (LRBC), and after clearcutting (AC) phases, respectively. …”
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Structural Modeling and Validation of Growth/Differentiation Factor 15 [NP_004855] Associated with Pregnancy Complication- Hyperemesis Gravidarum by Rajneesh Prajapat, Suman Jain, Manish K Vaishnav, Sonal Sogani

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Agricultural Land Market in Ukraine: Challenges of Trade Liberalization and Future Land Policy Reforms by Shamil Ibatullin, Yosyp Dorosh, Oksana Sakal, Vitaliy Krupin, Roman Kharytonenko, Maria Bratinova

“…After over 20 years of a strict moratorium on the turnover of agricultural land in Ukraine, an official market for this type of land has recently been established. …”
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Spruce up your climate analysis: Dendroclimatology of Picea engelmannii and Picea pungens by Joseph D. Birch, R. Justin DeRose, James A. Lutz

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Effect of date of transplanting on yield and yield attributing characters of aromatic fine rice in rainfed condition by Islam, M. S., Sarkar, M. A. R., Alam, M. J., Kashem, Md Abul, Yusop, Mohd Rafii, Abdul Latif, Mohammad

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Estimation of carbon in Jatropha curcas L. biomass and carbon footprint in its seed production by Sulaiman, Muhammad Firdaus

“…Comparison between the two plots showed that emission from the plot planted with Jatropha curcas was marginally higher than at the natural state plot by only 1.20 Mg carbon ha-1. …”
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Optimizing of planting density on the growth and yield of aromatic fine rice in rainfed condition by Islam, M. S., Sarkar, M. A. R., Alam, M. J., Kashem, Md Abul, Yusop, Mohd Rafii, Latif, Mohammad Abdul

“…The experiment was carried out with four aromatic fine rice (V1= BRRI dhan34, V2= Ukunimadhu, V3= Basmati and V4= Kataribhog) and four different plant spacings (S1= 15cm×15cm, S2= 20cm × 15cm, S3= 20cm × 20cm, S4= 20cm × 25cm). …”
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Effect of fertilizer management on growth and yield of fragrant fine rice varieties in rainfed condition by Islam, M. S., Sarkar, M. A. R., Alam, M. J., Kashem, M. A., Yusop, Mohd Rafii, Latif, M. A.

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Effect of number of seedling hill-1 on the growth and yield of aromatic fine rice varieties in rain fed condition by Islam, M. S., Sarkar, M. A. R., Alam, M. J., Kashem, M. A., Yusop, Mohd Rafii, Latif, Mohammad Abdul

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Inter-association and path coefficient analysis for yield and yield attributing traits in ash gourd [Benincasa hispida (Thunb) Cogn.] by Hament Thakur* and Vijay Kumar

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Influence of transplanting date and integrated weed management in system of rice intensification of aromatic black rice (Oryza sativa) by D NONGMAITHEM, SIBINO DOLIE, MOATOSHI JAMIR, TANKESWAR GOHAIN, TONGPANG LONGKUMER, AVANISH PRAKASH SINGH, LANUNOLA TZUDIR, REKHA YADAV, MANOJ DUTTA

“…The experiment was conducted in a split plot design (SPD) with 3 transplanting dates (D1, 15th June; D2, 30th June; and D3, 15th July) in main plot and 5 weed managements practices [W1, Weedy check; W2, Conoweeding at 20 and 40 DAT (days after transplanting); W3, Pretilachlor @0.75 kg/ha (PE) fb hand weeding (HW) at 40 DAT; W4, Pretilachlor @0.75 kg/ha (PE) fb conoweeder at 40 DAT; and W5, Pretilachlor at 0.75 kg/ha (PE) fb bispyribac-sodium @ 25 g/ha (PoE)] in sub-plot, replicated thrice. …”
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Effects of drip irrigation frequency, fertilizer sources and their interaction on the dry matter and yield components of sweet corn by Muhumed, Mohamed Abdirahmann, Jusop, Shamshuddin, Teh, Christopher Boon Sung, Megat Wahab, Puteri Edaroyati, Panhwar, Qurban Ali

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Statistical approach for prediction of thermal properties of CNC and CNC-CuO nanolubricant using Response Surface Methodology (RSM) by Sakinah, Hisham, K., Kadirgama, D., Ramasamy, M., Samykano, W. S., Wan Harun, R., Saidur

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Pidemco Land and Orchard Parade Holdings medium term note by Low, Buen Sin

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