dr. ahmed khalil

This is interesting:

‘Corrected’ UC-Irvine study shows turfgrass to be positive sequester of carbon

Scientists from the Department of Earth System Science at the University of California – Irvine recently published a paper in the journal Geophysical Research Letters on January 22, 2010 titled, “Carbon Sequestration and Greenhouse Gas Emi…[Read more]

Thank you Eric for your feedback – invaluable information since many have been asking about the LEED GA exam.

Just sat for the GA Exam and passed on the first attempt. It’s definitely distilled down from the old version of the exams. From my perspective the LEED GA is a great credential for LAs to have the distinction, but without having to go through the specialty portions that are beyond our typical work. Sustainable Sites is where I’m placing my emphasis.

In response to John’s question “how would you propose to reduce emissions and increase sequestration through design” in addition to my comments below about how to reduce greenhouse gas emissions – landscapes can also play an active role in sequestering carbon through thoughtful plant selection and soil stewardship. Research has shown that…[Read more]

I believe the solution is to first accept the dual responsibility built landscapes hold in both causing environmental degradation AND protecting and restoring the ecosystem services we depend upon.

I agree with David, we can not and should not eliminate turf completely from our landscapes. There are many scenarios where mowed lawn is the best…[Read more]

I have not read the article, Heather, David and Reid, but I think the basic point is good one — maintenance should be consideration in designing a “sustainable residential landscape.” Even here in the SW, we will design what we think is a more sustainable landscape, and put in a water harvesting swale with cobbles. As it turns out the maintenance…[Read more]

David your are correct!

@Reid – Hahahahahahahahahahaha!

I love to laugh out loud! It’s good for the body. Relieves stress, improves circulation.

Stupid Article!

This study also “compare(d) carbon sequestration to nitrous oxide and carbon dioxide emissions from lawn grooming practices.”

I have news for anyone willing to listen. Lawn maintenance doesn’t produce carbon “di”oxide emissions. Lawn maintenance produces carbon “mon”oxide. Carbon monoxide produces carbon dioxide which in turn is used by plants…[Read more]

From the article: “It’s impossible for these lawns to be net greenhouse gas sinks because too much fuel is used to maintain them,” Townsend-Small concluded.

So what’s the solution? That’s what I want to know. Should we eliminate athletic fields and play completely? What then shall we do with those that have no place to play and engage in athletic…[Read more]

Urban “Green” Space may lead to Global Warming

Interesting article about the importance of extending sustainable practices to the maintenance of our landscapes. If the implications of maintenance requirements are not considered, the benefits of sustainable design practices may be lost. I think this article also highlights the advantage of having…[Read more]

Phil,

Ditto Dan comments on experience, common sense and to use your company history on previous Construction estimates. I would add to his list, network(social) with local contractors and ask them for their input. Some will be glad to help out and others may not, you never know until you ask. Good Luck

Phillip,I have seen several programs over the years and have not been a big favorite of any of them so far. I have been in d/b for almost 28 years. I have worked in the field and behind the desk and I know how long it takes to plant a 4″ tree etc. including the stop at 7-11 for a big gulp and traffic, waiting for the semi to deliver the sod or…[Read more]

Hi, I’ve recently started working for a small residential design/build company and I’m wondering how other people go about estimating construction costs. Is there some great piece of software that makes the process easy, or do people rely on their own knowledge of material and labor prices. It seems like the estimating software I’ve looked at are…[Read more]

That’s fantastic to know USGBC is taking SiTES seriously. Alot of fellow designers have been very concerned about how SITES and LEED will integrate or if any integration will take place at all!?!?! There are so many great things about SITES that it would be a shame for LEED to miss. Thanks for the note, Heather!

Hey Folks! Just a quick note to say hello and introduce myself. After completing the 2009 report, I resigned as project manager of the Sustainable Sites Initiative to pursue other opportunities and spend more time with my 7 month old son. I am currently working with the USGBC as a subject matter expert to incorporate portions of the Sustainable…[Read more]

Hey Folks! Just a quick note to say hello and introduce myself. After completing the 2009 report, I resigned as project manager of the Sustainable Sites Initiative to pursue other opportunities and spend more time with my 7 month old son. I am interested in the practical application of landscape sustainability in residential settings and look…[Read more]

Thanks much to Chad and Charles. Are there specific details that you used, or did you just design your own details for each specific site? I’m going to look at SSI and see if there are any parking lots in their case studies; looking for pictures of good examples to show client that it can look good as well as earn them LEED credits!

Naomi-
If 6″ curbs are a must, explore the possibility of using curb cuts at regular intervals or where it makes sense….the cuts will still allow runoff to enter the depression. Clay soils? Maybe grade soil towards a central trench/basin filled with gravel. Put an underdrain at the bottom of the gravel and follow Charles’ suggestion of piping…[Read more]