UBC Wiki - User contributions [en]

Thread:Course talk:APBI200/sources

2016-04-14T04:12:08Z

JiahuiXiong: New thread: sources

is the deposition of N through precipitation the same thing as the throughfall absorption of S ?

Thread:Course talk:APBI200/Qs about old exams

2016-04-12T04:32:26Z

JiahuiXiong:

1. Under what circumstances can phosphate leaching become a problem? is that when there is no Al/Fe/ca ions present in the soil solution?

2. Why soil animals like nematodes are restricted to the uppermost soil layers like algae do. Does nematode also need sunlight?

3. What soil and environmental conditons contributed to the forming of Ahb? is the erosion make Ah buried?

4.Can both First and second minerals contribute to the sources of P and S?

Thread:Course talk:APBI200/Qs about old exams

2016-04-12T04:32:06Z

JiahuiXiong: New thread: Qs about old exams

1. Under what circumstances can phosphate leaching become a problem? is that when there is no Al/Fe/ca ions present in the soil solution?
2. Why soil animals like nematodes are restricted to the uppermost soil layers like algae do. Does nematode also need sunlight?
3. What soil and environmental conditons contributed to the forming of Ahb? is the erosion make Ah buried?
4.Can both First and second minerals contribute to the sources of P and S?

Thread:Course talk:APBI200/calculator/reply

2016-04-12T04:14:11Z

JiahuiXiong: Reply to calculator

No, i dont think so. Maja said today we dont need a calculator for the final.

Thread:Course talk:APBI200/Nitrication/reply (2)

2016-04-12T04:12:37Z

JiahuiXiong:

Yes, both ammonium (NH+) and nitrate (NO3-) ions are available to plants.

We have discussed three types of fixation processes during the discussion session #3. In this course we mentioned '''N2 biological fixation''' (that converts N2 from atmospheric air to plant available forms through activity of N-fixing organisms), '''NH4+ fixation''' (which represents trapping of NH4+ ions in the inter layer space of certain phylosillicate minerals, reducing availability of this form of N to plants) and '''phosphate fixation''' (a chemical reaction with either Fe/Al or Ca ions which leads to formation of insoluble phosphate compounds that are not available to plants). Hence, the outcomes of these 3 types of "fixation" are different

Thread:Course talk:APBI200/Suggestions for final exam questions/reply (2)

2016-04-11T02:09:38Z

JiahuiXiong: Reply to Suggestions for final exam questions

questions about identify soil order through identifying diagnostic horizon, horizon sequences and horizon thickness.

Thread:Course talk:APBI200/Questions about som/reply (2)

2016-04-10T18:15:11Z

JiahuiXiong:

thank you for your help!

But i am still confused by the "acidity" of FA. if this is not equal with pH value. What does it imply? High acidity means more H+ in the soil?

One more other question about Ammonium fixation: is Ammonium fixation the same with isomorphic substitution ?

Thread:Course talk:APBI200/Questions about som/reply (2)

2016-04-10T18:12:26Z

JiahuiXiong: Reply to Questions about som

thank you for your help!

But i am still confused by the "acidity" of FA. if this is not equal with pH value. What does it imply? High acidity means more H+ in the soil?

Thread:Course talk:APBI200/Questions about som

2016-04-09T19:12:15Z

JiahuiXiong:

1. FA has higher acidity than HA, but one slide says CEC is low at low pH due to undissociated form of COOH. so why does FA has higher CEC?

2. between 4-6 pH, R-COOH=R-COO negative + H positive. it means it will dissociate in low pH, but why CEC is low at low pH

3."# of carboxyl groups determine the behavior of humic substances" HA has more COOH, why does it has lower CEC ?
I am totally lost

Thread:Course talk:APBI200/Questions about som

2016-04-09T19:11:49Z

JiahuiXiong: New thread: Questions about som

1. FA has higher acidity than HA, but one slide says CEC is low at low pH due to undissociated form of COOH. so why does FA has higher CEC?
2. between 4-6 pH, R-COOH=R-COO negative + H positive. it means it will dissociate in low pH, but why CEC is low at low pH
3."# of carboxyl groups determine the behavior of humic substances" HA has more COOH, why does it has lower CEC ?
I am totally lost

User talk:JiahuiXiong

2016-04-08T16:50:27Z

JiahuiXiong:

add me on facebook and i'll send you discussion 1 & 2
https://www.facebook.com/david.xiao.9

Thread:Course talk:APBI200/answer key for Discussion Qs

2016-04-07T23:30:14Z

JiahuiXiong:

Hi, does anyone one know where can we see those posters for both discussion 2 and 3 questions? i did not have a chance of taking picture and read through and i want answer keys for the final. thx
Another question about lab 8:is the elevation for both sites 78m? i googled it, and i am not sure whether TA mentioned this.

Thread:Course talk:APBI200/answer key for Discussion Qs

2016-04-07T23:26:55Z

JiahuiXiong: New thread: answer key for Discussion Qs

Hi, does anyone one know where can we see those posters for both discussion 2 and 3 questions? i did not have a chance of taking picture and read through and i want answer keys for the final. thx

Course:APBI200/Lab Assignments

2016-03-23T20:16:38Z

JiahuiXiong:

{{Infobox APBI200}}
Here you can find information to help you with lab assignments.
 
==General Tips==
 
All lab assignments are due at 5pm a week after your lab (e.g., if you have a lab on Tue, your assignments is due following Tue by 5 pm)
 
 
<big>'''Conversion help and hints'''</big>
 
Attached document is intended to provide help with conversions and it will be useful throughout the course.
 
http://lfs-sw.sites.olt.ubc.ca/files/2014/01/APBI-200-Conversion-Help.pdf

==Lab 1 Tips==

Meet in MCML102A prior to the field trip. We will walk to the sites together as a group.
 

==Lab 2 Tips==

'''Reminder for the lab assignment''':
 
All lab assignments are due at 5pm a week after your lab (e.g., if you have a lab on Tue, your assignments is due following Tue by 5 pm)
 
 
Pls attach the following to your lab assignment:
 
•Your hydrometer data sheet with sample calculations written out for at least one line.

•The particle-size distribution curve. Don’t forget to include a title and axes labels. Indicate the % sand, silt and clay and the soil textural class.

•The table regarding the soil texture of two “mystery” samples (determined by hand-texturing). Include a brief justification of your answer.

 
Semi log paper (needed to draw the particle-size distribution curve) can be found in the attached pdf file. Alternatively, you can plot the data in Excel (but pls remember to use semi-log scale).
 
http://lfs-sw.sites.olt.ubc.ca/files/2014/01/Semi_log_ver2.pdf

==Lab 3 Tips==
Pls read the manual. Introduction for each lab includes all the information needed to answer lab assignment questions.
 
 
Required attachments for lab assignment:
 
•Your data collection sheet with calculations written out for both samples parameters (lines a through k), and for the first 2 tension values.
Be sure to include units when you enter your data and to keep track of units when making your calculations.

•The water retention curves for '''medium''' and '''fine sand''' samples indicating air entry value (AEV) and air intrusion value (AIV). Use your data that you collected in the lab and also data provided in the appendix A (on p.91) of the lab manual.

 

'''''•Clarification re. lab assignment #3, question 1b "Do you find this result surprising? Why or why not? "'''''
 
After calculating aeration porosity (Va / Vt) at a tension of 60 cm for medium & fine sand samples (as required in question 1a), you should:
 
(i) compare aeration porosity values for medium & fine sand samples and
 
(ii) comment are those 2 calculated values what you would expect based on what has been covered in lectures.
 

==Lab 4 Tips==
Here are data set for '''soil organic matter''' calculation http://lfs-sw.sites.olt.ubc.ca/files/2015/02/OrganicMatter-Wt.xlsx
 

Here are data for '''soil water content''' calculation
http://lfs-sw.sites.olt.ubc.ca/files/2015/02/Oven-Wt_for-Moisture.xlsx

==Lab 5 Tips==
Useful collection of videos showing different types of parent material in their typical landscape settings can be found at http://landscape.soilweb.ca/
 

==Lab 6 Tips==
 
Posted on March 8, 2016:
* The pdf file with forest floor chapter, including the lab assignment is attached here [http://lfs-sw.sites.olt.ubc.ca/files/2016/03/Lab-6-Forest-Floor-Chapter_Mar1116.pdf]
 
* Pls note that it is important to view videos posted at the "Forest Floor" website (http://forestfloor.soilweb.ca/), which provides all necessary information for our lab 6.
 
* Here is file with slides for this lab http://lfs-sw.sites.olt.ubc.ca/files/2015/03/FF_LAB6_Mar1615.pdf
 
* To earn bonus points, you should play a self-guided quest at the UBC Farm
* Add your '''Quest team name & (full) names of all your team members''' here (pls use unique names for your teams, do NOT use already existing team name). Pls follow this example - TEAM: SuperSoil, MEMBERS: Maja Krzic, Sandra Brown, and Martin Hilmer

TEAM: Premature Flocculation, MEMBERS: Jacob Atherton, Esmée MacDonald, Kelly Rose Heath, Paige Sonmor, Bilal Sayed, Bailey Williams, Erik Alonso
 
TEAM: Three Horizons, MEMBERS: Elisa Kwun, Nolita Kay, Rachel Chew
 
TEAM: Soil Science Squad, MEMBERS: Heather McDermid, Doreen Varghase and Tiffany Chin
 
TEAM: Soil S.Y.Z.J.D.L, ( Irenezyy)MEMBERS: Danlin Jiang, Peiyang Li, Youngwoon (Sarah) Suh, Doris Sun, Yalan Yang, Yunyi(Irene)Zhang
 
TEAM: the Four hoursemen MEMBERS:Kexin Miao, Ernest Wong, Shami Perm,Shirlei Emiko Ishizaki
 
TEAM: FrozenSoil, MEMBERS: Shiyi(Jennifer) Zhang, Jiahui Xiong, and Junyi Meng
 
TEAM: The Amigotrophic Bacteria, MEMBERS: Spencer Bailey, Tyger Paul, Chang (George) Zhi Yun, Wing Kei Yeung
 
TEAM: Kyshaw, MEMBERS: Shawn Z and Kyne Tsai
 
TEAM: We Don't Have a Team Name because the App Crashed on Us, MEMBERS: Kelly Hong, Deandra Atmojo, Simon Chung, Kelsey Moy
 
TEAM: MENCHIE, MEMBERS: Charles Cohen, Apolline Marcilhacy, Meriam Lorbes, Brittany Wong, David Xiao, Lia Monteferrante

TEAM: Anais and Iva's soil adventure MEMBERS: Anais Janik, Iva Jankovic

==Lab 7 Tips==

 
To learn key characteristics of 10 soil orders in the Canadian soil classification system, it might be helpful to view video clips posted at the website entitled
Canadian Soil Orders (http://soilweb.landfood.ubc.ca/classification/ )

==Lab 8 Tips==
 
For this lab, we will meet at the UBC Farm, located at 3461 Ross Drive. To get to the UBC Farm please check the directions provided at the Farm’s website at http://ubcfarm.ubc.ca/about/directions-hours-and-contact-information/
We will meet at the Farm Centre and to reach it, please go through the Farm gate, turn right, and follow the gravel road until you reach a red roofed building (the Farm Centre) located beside a small glass greenhouse.

Course:APBI200/Lab Assignments

2016-03-22T01:25:14Z

JiahuiXiong:

{{Infobox APBI200}}
Here you can find information to help you with lab assignments.
 
==General Tips==
 
All lab assignments are due at 5pm a week after your lab (e.g., if you have a lab on Tue, your assignments is due following Tue by 5 pm)
 
 
<big>'''Conversion help and hints'''</big>
 
Attached document is intended to provide help with conversions and it will be useful throughout the course.
 
http://lfs-sw.sites.olt.ubc.ca/files/2014/01/APBI-200-Conversion-Help.pdf

==Lab 1 Tips==

Meet in MCML102A prior to the field trip. We will walk to the sites together as a group.
 

==Lab 2 Tips==

'''Reminder for the lab assignment''':
 
All lab assignments are due at 5pm a week after your lab (e.g., if you have a lab on Tue, your assignments is due following Tue by 5 pm)
 
 
Pls attach the following to your lab assignment:
 
•Your hydrometer data sheet with sample calculations written out for at least one line.

•The particle-size distribution curve. Don’t forget to include a title and axes labels. Indicate the % sand, silt and clay and the soil textural class.

•The table regarding the soil texture of two “mystery” samples (determined by hand-texturing). Include a brief justification of your answer.

 
Semi log paper (needed to draw the particle-size distribution curve) can be found in the attached pdf file. Alternatively, you can plot the data in Excel (but pls remember to use semi-log scale).
 
http://lfs-sw.sites.olt.ubc.ca/files/2014/01/Semi_log_ver2.pdf

==Lab 3 Tips==
Pls read the manual. Introduction for each lab includes all the information needed to answer lab assignment questions.
 
 
Required attachments for lab assignment:
 
•Your data collection sheet with calculations written out for both samples parameters (lines a through k), and for the first 2 tension values.
Be sure to include units when you enter your data and to keep track of units when making your calculations.

•The water retention curves for '''medium''' and '''fine sand''' samples indicating air entry value (AEV) and air intrusion value (AIV). Use your data that you collected in the lab and also data provided in the appendix A (on p.91) of the lab manual.

 

'''''•Clarification re. lab assignment #3, question 1b "Do you find this result surprising? Why or why not? "'''''
 
After calculating aeration porosity (Va / Vt) at a tension of 60 cm for medium & fine sand samples (as required in question 1a), you should:
 
(i) compare aeration porosity values for medium & fine sand samples and
 
(ii) comment are those 2 calculated values what you would expect based on what has been covered in lectures.
 

==Lab 4 Tips==
Here are data set for '''soil organic matter''' calculation http://lfs-sw.sites.olt.ubc.ca/files/2015/02/OrganicMatter-Wt.xlsx
 

Here are data for '''soil water content''' calculation
http://lfs-sw.sites.olt.ubc.ca/files/2015/02/Oven-Wt_for-Moisture.xlsx

==Lab 5 Tips==
Useful collection of videos showing different types of parent material in their typical landscape settings can be found at http://landscape.soilweb.ca/
 

==Lab 6 Tips==
 
Posted on March 8, 2016:
* The pdf file with forest floor chapter, including the lab assignment is attached here [http://lfs-sw.sites.olt.ubc.ca/files/2016/03/Lab-6-Forest-Floor-Chapter_Mar1116.pdf]
 
* Pls note that it is important to view videos posted at the "Forest Floor" website (http://forestfloor.soilweb.ca/), which provides all necessary information for our lab 6.
 
* Here is file with slides for this lab http://lfs-sw.sites.olt.ubc.ca/files/2015/03/FF_LAB6_Mar1615.pdf
 
* To earn bonus points, you should play a self-guided quest at the UBC Farm
* Add your '''Quest team name & (full) names of all your team members''' here (pls use unique names for your teams, do NOT use already existing team name). Pls follow this example - TEAM: SuperSoil, MEMBERS: Maja Krzic, Sandra Brown, and Martin Hilmer

TEAM: Premature Flocculation, MEMBERS: Jacob Atherton, Esmée MacDonald, Kelly Rose Heath, Paige Sonmor, Bilal Sayed, Bailey Williams, Erik Alonso
 
TEAM: Three Horizons, MEMBERS: Elisa Kwun, Nolita Kay, Rachel Chew
 
TEAM: Soil Science Squad, MEMBERS: Heather McDermid, Doreen Varghase and Tiffany Chin
 
TEAM: Soil S.Y.Z.J.D.L, MEMBERS: Danlin Jiang, Peiyang Li, Youngwoon (Sarah) Suh, Doris Sun, Yalan Yang, Yunyi(Irene)Zhang
 
TEAM: the Four hoursemen MEMBERS:Kexin Miao, Ernest Wong, Shami Perm,Shirlei Emiko Ishizaki
 
TEAM: Frozen soil, MEMBERS: Shiyi(Jennifer) Zhang, Jiahui Xiong, and Junyi Meng
==Lab 7 Tips==

 
To learn key characteristics of 10 soil orders in the Canadian soil classification system, it might be helpful to view video clips posted at the website entitled
Canadian Soil Orders (http://soilweb.landfood.ubc.ca/classification/ )

==Lab 8 Tips==
 
For this lab, we will meet at the UBC Farm, located at 3461 Ross Drive. To get to the UBC Farm please check the directions provided at the Farm’s website at http://ubcfarm.ubc.ca/about/directions-hours-and-contact-information/
We will meet at the Farm Centre and to reach it, please go through the Farm gate, turn right, and follow the gravel road until you reach a red roofed building (the Farm Centre) located beside a small glass greenhouse.

Course:APBI200/Lab Assignments

2016-03-21T22:14:10Z

JiahuiXiong:

{{Infobox APBI200}}
Here you can find information to help you with lab assignments.
 
==General Tips==
 
All lab assignments are due at 5pm a week after your lab (e.g., if you have a lab on Tue, your assignments is due following Tue by 5 pm)
 
 
<big>'''Conversion help and hints'''</big>
 
Attached document is intended to provide help with conversions and it will be useful throughout the course.
 
http://lfs-sw.sites.olt.ubc.ca/files/2014/01/APBI-200-Conversion-Help.pdf

==Lab 1 Tips==

Meet in MCML102A prior to the field trip. We will walk to the sites together as a group.
 

==Lab 2 Tips==

'''Reminder for the lab assignment''':
 
All lab assignments are due at 5pm a week after your lab (e.g., if you have a lab on Tue, your assignments is due following Tue by 5 pm)
 
 
Pls attach the following to your lab assignment:
 
•Your hydrometer data sheet with sample calculations written out for at least one line.

•The particle-size distribution curve. Don’t forget to include a title and axes labels. Indicate the % sand, silt and clay and the soil textural class.

•The table regarding the soil texture of two “mystery” samples (determined by hand-texturing). Include a brief justification of your answer.

 
Semi log paper (needed to draw the particle-size distribution curve) can be found in the attached pdf file. Alternatively, you can plot the data in Excel (but pls remember to use semi-log scale).
 
http://lfs-sw.sites.olt.ubc.ca/files/2014/01/Semi_log_ver2.pdf

==Lab 3 Tips==
Pls read the manual. Introduction for each lab includes all the information needed to answer lab assignment questions.
 
 
Required attachments for lab assignment:
 
•Your data collection sheet with calculations written out for both samples parameters (lines a through k), and for the first 2 tension values.
Be sure to include units when you enter your data and to keep track of units when making your calculations.

•The water retention curves for '''medium''' and '''fine sand''' samples indicating air entry value (AEV) and air intrusion value (AIV). Use your data that you collected in the lab and also data provided in the appendix A (on p.91) of the lab manual.

 

'''''•Clarification re. lab assignment #3, question 1b "Do you find this result surprising? Why or why not? "'''''
 
After calculating aeration porosity (Va / Vt) at a tension of 60 cm for medium & fine sand samples (as required in question 1a), you should:
 
(i) compare aeration porosity values for medium & fine sand samples and
 
(ii) comment are those 2 calculated values what you would expect based on what has been covered in lectures.
 

==Lab 4 Tips==
Here are data set for '''soil organic matter''' calculation http://lfs-sw.sites.olt.ubc.ca/files/2015/02/OrganicMatter-Wt.xlsx
 

Here are data for '''soil water content''' calculation
http://lfs-sw.sites.olt.ubc.ca/files/2015/02/Oven-Wt_for-Moisture.xlsx

==Lab 5 Tips==
Useful collection of videos showing different types of parent material in their typical landscape settings can be found at http://landscape.soilweb.ca/
 

==Lab 6 Tips==
 
Posted on March 8, 2016:
* The pdf file with forest floor chapter, including the lab assignment is attached here [http://lfs-sw.sites.olt.ubc.ca/files/2016/03/Lab-6-Forest-Floor-Chapter_Mar1116.pdf]
 
* Pls note that it is important to view videos posted at the "Forest Floor" website (http://forestfloor.soilweb.ca/), which provides all necessary information for our lab 6.
 
* Here is file with slides for this lab http://lfs-sw.sites.olt.ubc.ca/files/2015/03/FF_LAB6_Mar1615.pdf
 
* To earn bonus points, you should play a self-guided quest at the UBC Farm
* Add your '''Quest team name & (full) names of all your team members''' here (pls use unique names for your teams, do NOT use already existing team name). Pls follow this example - TEAM: SuperSoil, MEMBERS: Maja Krzic, Sandra Brown, and Martin Hilmer

TEAM: Premature Flocculation, MEMBERS: Jacob Atherton, Esmée MacDonald, Kelly Rose Heath, Paige Sonmor, Bilal Sayed, Bailey Williams, Erik Alonso
 
TEAM: Three Horizons, MEMBERS: Elisa Kwun, Nolita Kay, Rachel Chew
 
TEAM: Soil Science Squad, MEMBERS: Heather McDermid, Doreen Varghase and Tiffany Chin
 
TEAM: Soil S.Y.Z.J.D.L, MEMBERS: Danlin Jiang, Peiyang Li, Youngwoon (Sarah) Suh, Doris Sun, Yalan Yang, Yunyi(Irene)Zhang
 
TEAM: the Four hoursemen MEMBERS:Kexin Miao, Ernest Wong, Shami Perm,Shirlei Emiko Ishizaki
 
TEAM: Frozen, MEMBERS: Shiyi(Jennifer) Zhang, Jiahui Xiong, and Junyi Meng
==Lab 7 Tips==

 
To learn key characteristics of 10 soil orders in the Canadian soil classification system, it might be helpful to view video clips posted at the website entitled
Canadian Soil Orders (http://soilweb.landfood.ubc.ca/classification/ )

==Lab 8 Tips==
 
For this lab, we will meet at the UBC Farm, located at 3461 Ross Drive. To get to the UBC Farm please check the directions provided at the Farm’s website at http://ubcfarm.ubc.ca/about/directions-hours-and-contact-information/
We will meet at the Farm Centre and to reach it, please go through the Farm gate, turn right, and follow the gravel road until you reach a red roofed building (the Farm Centre) located beside a small glass greenhouse.

Course:APBI200/Lab Assignments

2016-03-21T22:09:36Z

JiahuiXiong:

{{Infobox APBI200}}
Here you can find information to help you with lab assignments.
 
==General Tips==
 
All lab assignments are due at 5pm a week after your lab (e.g., if you have a lab on Tue, your assignments is due following Tue by 5 pm)
 
 
<big>'''Conversion help and hints'''</big>
 
Attached document is intended to provide help with conversions and it will be useful throughout the course.
 
http://lfs-sw.sites.olt.ubc.ca/files/2014/01/APBI-200-Conversion-Help.pdf

==Lab 1 Tips==

Meet in MCML102A prior to the field trip. We will walk to the sites together as a group.
 

==Lab 2 Tips==

'''Reminder for the lab assignment''':
 
All lab assignments are due at 5pm a week after your lab (e.g., if you have a lab on Tue, your assignments is due following Tue by 5 pm)
 
 
Pls attach the following to your lab assignment:
 
•Your hydrometer data sheet with sample calculations written out for at least one line.

•The particle-size distribution curve. Don’t forget to include a title and axes labels. Indicate the % sand, silt and clay and the soil textural class.

•The table regarding the soil texture of two “mystery” samples (determined by hand-texturing). Include a brief justification of your answer.

 
Semi log paper (needed to draw the particle-size distribution curve) can be found in the attached pdf file. Alternatively, you can plot the data in Excel (but pls remember to use semi-log scale).
 
http://lfs-sw.sites.olt.ubc.ca/files/2014/01/Semi_log_ver2.pdf

==Lab 3 Tips==
Pls read the manual. Introduction for each lab includes all the information needed to answer lab assignment questions.
 
 
Required attachments for lab assignment:
 
•Your data collection sheet with calculations written out for both samples parameters (lines a through k), and for the first 2 tension values.
Be sure to include units when you enter your data and to keep track of units when making your calculations.

•The water retention curves for '''medium''' and '''fine sand''' samples indicating air entry value (AEV) and air intrusion value (AIV). Use your data that you collected in the lab and also data provided in the appendix A (on p.91) of the lab manual.

 

'''''•Clarification re. lab assignment #3, question 1b "Do you find this result surprising? Why or why not? "'''''
 
After calculating aeration porosity (Va / Vt) at a tension of 60 cm for medium & fine sand samples (as required in question 1a), you should:
 
(i) compare aeration porosity values for medium & fine sand samples and
 
(ii) comment are those 2 calculated values what you would expect based on what has been covered in lectures.
 

==Lab 4 Tips==
Here are data set for '''soil organic matter''' calculation http://lfs-sw.sites.olt.ubc.ca/files/2015/02/OrganicMatter-Wt.xlsx
 

Here are data for '''soil water content''' calculation
http://lfs-sw.sites.olt.ubc.ca/files/2015/02/Oven-Wt_for-Moisture.xlsx

==Lab 5 Tips==
Useful collection of videos showing different types of parent material in their typical landscape settings can be found at http://landscape.soilweb.ca/
 

==Lab 6 Tips==
 
Posted on March 8, 2016:
* The pdf file with forest floor chapter, including the lab assignment is attached here [http://lfs-sw.sites.olt.ubc.ca/files/2016/03/Lab-6-Forest-Floor-Chapter_Mar1116.pdf]
 
* Pls note that it is important to view videos posted at the "Forest Floor" website (http://forestfloor.soilweb.ca/), which provides all necessary information for our lab 6.
 
* Here is file with slides for this lab http://lfs-sw.sites.olt.ubc.ca/files/2015/03/FF_LAB6_Mar1615.pdf
 
* To earn bonus points, you should play a self-guided quest at the UBC Farm
* Add your '''Quest team name & (full) names of all your team members''' here (pls use unique names for your teams, do NOT use already existing team name). Pls follow this example - TEAM: SuperSoil, MEMBERS: Maja Krzic, Sandra Brown, and Martin Hilmer

TEAM: Premature Flocculation, MEMBERS: Jacob Atherton, Esmée MacDonald, Kelly Rose Heath, Paige Sonmor, Bilal Sayed, Bailey Williams, Erik Alonso
 
TEAM: Three Horizons, MEMBERS: Elisa Kwun, Nolita Kay, Rachel Chew
 
TEAM: Soil Science Squad, MEMBERS: Heather McDermid, Doreen Varghase and Tiffany Chin
 
TEAM: Soil S.Y.Z.J.D.L, MEMBERS: Danlin Jiang, Peiyang Li, Youngwoon (Sarah) Suh, Doris Sun, Yalan Yang, Yunyi(Irene)Zhang
 
TEAM: the Four hoursemen MEMBERS:Kexin Miao, Ernest Wong, Shami Perm,Shirlei Emiko Ishizaki
 
TEAM: frozen, MEMBERS: Shiyi Zhang, Jiahui Xiong, and Junyi Meng
==Lab 7 Tips==

 
To learn key characteristics of 10 soil orders in the Canadian soil classification system, it might be helpful to view video clips posted at the website entitled
Canadian Soil Orders (http://soilweb.landfood.ubc.ca/classification/ )

==Lab 8 Tips==
 
For this lab, we will meet at the UBC Farm, located at 3461 Ross Drive. To get to the UBC Farm please check the directions provided at the Farm’s website at http://ubcfarm.ubc.ca/about/directions-hours-and-contact-information/
We will meet at the Farm Centre and to reach it, please go through the Farm gate, turn right, and follow the gravel road until you reach a red roofed building (the Farm Centre) located beside a small glass greenhouse.

Thread:Course talk:APBI200/lab 4 data

2016-02-28T20:09:53Z

JiahuiXiong: New thread: lab 4 data

i am in tuesday morninng's lab from 10 to 12. And my group had the sample no. 37 for soil water percentage. i rocorded the air dried soil+ tin = 10.996 but when i look at the data for oven dried soil, # 37 is placed into wed. and the weight is 11.28 which is even bigger than the weight of air dried soil+ tin. i am so confused

Thread:Course talk:APBI200/practice exam/reply (3)

2016-02-25T21:51:29Z

JiahuiXiong: Reply to practice exam

i see your point, but what is the distinction related to the plant growth?

Thread:Course talk:APBI200/Answer Keys for Old Midterms/reply

2016-02-25T05:01:09Z

JiahuiXiong: Reply to Answer Keys for Old Midterms

i don't think we will get answer keys

Thread:Course talk:APBI200/practice exam

2016-02-24T06:19:31Z

JiahuiXiong: New thread: practice exam

1. for 2005,NO.3,b i am confused when it asks what can we tell from the porosity and particle volume.what are we expected to answer?
2. what is the major distinction between active acidity and exchangeable acidity?
3. Why kaolinite has a much lower CEC than Montmorillonite ? Is that because Montmorillonite is loosely held by oxygen oxygen bond and cation oxygen bond but Kaolinite has a more stable and fixed structure due to hydrogen bond?

Thread:Course talk:APBI200/lab

2016-02-20T20:36:43Z

JiahuiXiong: New thread: lab

Do we have answer keys for the labs? I was wondering if it is necessary to review labs for the midterm.

Thread:Course talk:APBI200/Montmorillonite swelling

2016-02-16T00:28:07Z

JiahuiXiong:

I do not know why clay rich in Montmorillonite will swell, can anyone explain this to me?
Another question is that from the 2005 midterm questions, there is one questions asking me distinguish regolith and solum but I don't know these two words, do I need to know?

Thread:Course talk:APBI200/Montmorillonite swelling

2016-02-16T00:16:58Z

JiahuiXiong: New thread: Montmorillonite swelling

I do not know why clay rich in Montmorillonite will swell, can anyone explain this to me?

Thread:Course talk:APBI200/midterm

2016-02-14T18:05:24Z

JiahuiXiong: New thread: midterm

the testable material is only the part of soil physics ?

Thread:Course talk:APBI200/problem set 2 4d)

2016-02-12T00:13:18Z

JiahuiXiong: New thread: problem set#2 4d)

in the spring, the weather is still cold, so would the outside temperature is colder than the soil? so the temperature of soil might decrease? if there is more water, the rate of decreases will be slower ?

Thread:Course talk:APBI200/different meanings for clay

2016-01-17T19:40:51Z

JiahuiXiong: New thread: different meanings for clay

did anyone take notes for the last PPT regarding different terms for clay (bonus question asked before class ends)? i thought it would be posted on the PPT, so i did not take notes.

User talk:JiahuiXiong

2016-01-17T19:18:45Z

JiahuiXiong: different terms regarding clay

Did anyone take notes for the last PPT for the clay with different meanings (bonus question asked before class ends)i did not take notes for that because i thought it would show on the PPT but it does not.