"An inconvenient truth" is the simplest movie I've ever watched. This movie is about the climate change and global warming that is similar to another famous movie "The day after tomorrow". But if, we say, there is more or less entertainment factors involved in "The day after tomorrow", "An Inconvenient Truth" try to present the terrible scenarios in "The day after tomorrow" in more scientific method.

  I started to write my first English paper 3 days ago. Although I haven't written any paper even in Chinese except for my master degree paper, I will do my best to finish this mission.

  This paper is about parameterization and evaluation of ORYZA2000 on aerobic rice in Beijing. My previous student wrote a Chinese passage about this issue, but I will try something new in my passage. I want to evaluate the performance of ORYZA2000 model by using of 4 years experiment data in Beijing and explore the ability for simulating yield under different soil moisture levels. When I finished my work, I will make a instruction more detailed.

  I finally finished my first researching program, Integrated pedo-transfer (IPT) with the absent of weekends in one month. I am so happy in spite of a little tired. However, I suppose, there is still a long road to go, compared with other successful programs of pedotransfer function, such as Staringreeks, RETC and REstta. But I will insist on my way to improve IPT(Figure below).

  IPT provides 5 Pedo-Transfer Functions for predicting the soil saturated and unsaturated hydraulic parameters. All of them were derived from literatures.
  For the next step, I'd like to explore which kind of Pedotransfer is fitted to Chinese soil, and the impact or adaptation of Pedotransfer to ORYZA2000 simulation.
  If you are interested in the program, please contract me. It is my pleasure you use my program in your researching. Or tell me your ideas and suggestions.

 

 

 

Recent decades, more and more attentions paid to soil unsaturated hydraulic model evokes the wish to create statistical function to be able to translate basic soil data into soil hydraulic properties. Lots of soil scientists have conducted a series of "wonderful" work about that and created varieties of statistical functions, which are often called Pedo-transfer functions.

As an indirect method, pedo-transfer functions method is famous for its more convenience to get soil hydraulic properties, which was presented by scholars. And, for some research about simulation on large scales, pedo-transfer functions method may be the only approach to define soil properties in different land unit by use of data of soil survey. 
  It is necessary that we may summarize those functions in order to compute and compare them easier and faster.

 

Hello, all:

  I am Ian, who study in Institute of Atmosphere Physics (IAP) for my PHD. In the coming 3 years, I will do some researches about the compacts of climate change to crop growth in China, which is still a challege and hot project.

  I built this spaces for communisting with others, who are interested in my research contents, more easily. In this space,we should not limite by traditinal ways. And you can express your opinions, suggestions directly. Because, I believe, "Brain storm" is a top management for researcher. Let's talk science together.

  My research contents mainly focus on about 5 items followed:

  In the space, I will public my useful program, show my tips or questions in research and communicate my feeling to you.

                                                                                       Name: Ian

                                                                                       E-mail: ian_zhangty@hotmail.com