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  • Agriculture and environment

  • are really a, a very

  • delicate, intricate balance.

  • You know, there are

  • a lot of different variables

  • that influence the health

  • of any system

  • the agricultural practices

  • that we conduct here have

  • a direct impact on the

  • health of the watershed.

  • And so finding a way

  • to balance the inputs of

  • all the different aspects of

  • these very, very complex systems

  • is an exceptional challenge.

  • I think what’s interesting

  • in Pennsylvania is that

  • there’s really three main um

  • things we do

  • with the landscape.

  • One of those is

  • natural land cover, so,

  • say, forest, water resources,

  • streams and wetlands.

  • Um we use land

  • for agricultural activities.

  • We use land

  • for urban development.

  • Those are our three main

  • types of land use

  • in Pennsylvania.

  • Changes in land use

  • throughout much of the region

  • have resulted in

  • a lot of houses, roads,

  • impervious surfaces of

  • various sorts that change

  • the entire runoff pattern.

  • Pesticides are applied

  • in suburbia as well as

  • agricultural systems.

  • Uh Pet wastes are

  • a source of nitrogen,

  • just as dairy cow and,

  • and hog wastes are

  • a source of nitrogen.

  • And a lot of the

  • discussion has centered

  • around nitrogen,

  • it comes from fertilizer

  • on farm fields,

  • comes from manure,

  • comes from all these

  • water treatment plants, uh,

  • comes from people

  • fertilizing their lawns.

  • And we, use a lot of

  • nitrogen and we have

  • very leaky systems.

  • So we send a lot downstream.

  • Susquehanna river basin

  • alone within that

  • large watershed is

  • twenty seven thousand

  • five hundred square miles.

  • So there are

  • a lot of farmers.

  • There are a lot of

  • sewage treatment plants

  • that are going to need

  • to take actions,

  • which all require money.

  • It will take time.

  • Our real problem is

  • that we just have

  • an imbalance of nutrients.

  • Uh We end up

  • accumulating nutrients

  • in areas where animals are.

  • And what weve got

  • to do is figure out

  • how to get the whole

  • system back into a

  • little better balance.

  • The air-water interface,

  • around um animal ag is,

  • it’s always really integrated

  • and um weve got to

  • kind of keep track that

  • what were doing

  • to improve the air

  • doesn’t end up

  • going to the water,

  • and what were doing

  • to improve the water

  • doesn’t end up

  • going to the air.

  • When wetlands are in

  • a position, say, for example,

  • between agriculture and

  • a stream, they do

  • quite a bit that’s of value.

  • They play a real role in,

  • for example um

  • absorbing nutrients

  • or transforming nutrients.

  • They have a, a large role

  • in nitrogen cycling,

  • um in carbon storage,

  • they retain sediment.

  • Many streams throughout

  • Pennsylvania, Maryland

  • and Virginia are

  • technically considered impaired.

  • That means that

  • their water quality is not of,

  • sufficient value to,

  • support all their uses.

  • Pennsylvania has restored about

  • twenty-two hundred miles of

  • forest buffers along streams.

  • Uh, weve initiated,

  • with a lot of other partners,

  • uh, precision feeding programs

  • for dairy cows, which has

  • a tremendous impact on

  • the nutrient levels on local farms.

  • A lot of our

  • extension programs are

  • designed to try to

  • give farmers the information

  • they need to, to improve

  • the practices on the farm.

  • Weve been doing a lot of

  • research, … and extension work in

  • how do we integrate uh

  • nutrient management and

  • no-till crop production.

  • Uh Theyre both practices

  • that have been shown to

  • be beneficial, but yet

  • there are some issues there

  • where they conflict with each other.

  • I love to plow.

  • And I knew it was wrong.

  • But I still loved to plow.

  • Then, I finally went

  • to the proper training.

  • It, it turned me around.

  • And now that I

  • can see that,

  • I’ve been going no-till corn,

  • soil loss on no-till corn

  • is one ton per, per year,

  • which is nothing.

  • And were saving soil that way.

  • Many of the farmers

  • that we talk to about

  • conservation practices are

  • more eager to implement

  • those practices when they

  • find out that they can

  • save money on their own farms.

  • Conservation practices do pay

  • because it keeps the soil

  • on the ground;

  • it keeps the water clean;

  • and in many cases

  • itll help them save money,

  • especially on energy.

  • The Agriculture and

  • Environment Center

  • was established to help

  • bridge some gaps that

  • I think the college

  • has recognized existed

  • for quite some time.

  • Weve got all this

  • amazing research that’s

  • taking place around

  • environmental impacts that

  • are associated with um

  • human disturbances and

  • certainly agriculture like

  • any other human activity has

  • um environmental consequences.

  • There are issues with

  • water quality that we need

  • to keep front and center

  • as we consider um

  • the critical balance of

  • maintaining the natural resources

  • here in Pennsylvania.

  • The research from Penn State

  • is influencing the

  • decisions and policies that

  • really have an impact

  • at all levels.

  • The solutions that we might

  • derive for the portfolio of

  • agricultural operations in

  • Pennsylvania could actually

  • be quite variable.

  • It may not be

  • one-size-fits-all.

  • But at the root

  • of the problem,

  • the science is the same.

  • A nutrient moves through

  • soil with certain properties.

  • And if our scientists

  • can help to continue

  • to understand that process,

  • we can adapt that science

  • to technologies that, I think,

  • will have great benefit

  • to the diverse array of

  • producers that we have

  • here in Pennsylvania.

Agriculture and environment

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農業和環境中心 (Agriculture and Environment Center)

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    羅致 posted on 2021/01/14
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