Vol. 51â1997 - NorthEastern Weed Science Society
Vol. 51â1997 - NorthEastern Weed Science Society Vol. 51â1997 - NorthEastern Weed Science Society
130 Ho much land can ten billion people spare for Nature? Paul E. Waggoner The Connecticut Agricultural Experiment Station New Haven, Connecticut In the st Ie of a debater, I choose the affirmative of four resolutio s: Because human needs are imperative, land for Nature must be spared, not legislated. Farmers amended Malthus' aw into Jefferson's Imperative. Yield can be lifted more to s are more land. And, environmental expense need not cancel th profit of sparing land for Nature. Land for Na e must be spared Proclamat'on of wilderness and purchase of preserves prove the rank ature has won in minds and affairs. Nevertheless, because h n needs are imperative, Nature has to be spared and canno be successfully legislated. After tal ing with a poor woman along a path in the royal preserve f Fontainebleau near Paris, Thomas Jefferson wrote James Mad'son, I aske myself what could be the reason that so many should be permitted to beg who are willing to work in a coun ry where there is a very considerable propor ion of uncultivated lands? These lands are kept i Ie mostly for the sake of game .••• Whenever there s in any country, uncultivated lands and unempl yed poor, it is clear that the laws of proper y have been so far extended as to violate natura right •..• If we [allow land to be approp iated and do not provide employment], the fundam ntal right to labour the earth returns to the unempl yed. (Jefferson 1785) Jefferson hoped for a peaceful evolution, but the French soon cut away he violation of natural right with the guillotine. I have de ended my first resolution: Because human needs are imperativ r Nature must be spared--not legislated.
Waggoner December 24, 1994 131 JeffersoD~s Impe .ve Lightening th grimness of the first resolution, the second states: Farme s amended Malthus' Law into Jefferson's Imperative. For what I ca 1 Jefferson's Imperative, I let area cropped be A, Population be P, calories per capita be F for Food and Feed, and cal ric Yield per area be Y. Then P·F A=- Y The resi.duum fter A is cropped will be spared for other uses, includi g Nature. Humanity sets the Malthusian people P and food F ab ve the dividing line. Farmers amend with Y for yield. Ten percent higher yield spares the s e 10% land for Nature as 10% fewer people. From 1700 unt ,1 1950 people expanded global cropland faster than they mul iplied. In three centuries, cropland per person expanded 20%. Then in only 40 years, it fell 40%, Fig 1. 2 ,..-------------.0.5 1. 1 0.5 halperson c ~ ! 0.2 .c 0.1 o 0 1700 1750 1800 1850 1900 19502000 bal courses since 1700 of cropland in billions f cropland per capita. (Richards 1990 and Food re Or anization (FAO) 1992). Jefferson's yield can 10 food calorie protein in t " perative insists only fewer calories or more er cropland per person. But from 1970 to 1990 per person went up, not down. And animal e food supply went up even faster. Poor
- Page 80 and 81: ~---------_._-~---_.._--- 80 A NEW
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- Page 84 and 85: 84 NEW TE HNIQUE TO COMPARE EFFICAC
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- Page 88 and 89: 88 Managing nterseeded Cover Crops
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- Page 100 and 101: 100 LIVERWORT AND PEARLWORT MANAGEM
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- Page 126 and 127: 126 E ALUATION OF IMAZAMETH FOR WEE
- Page 128 and 129: 128 Presidential Address Delivered
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- Page 148 and 149: 148 Appendix Calculate the environm
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- Page 156 and 157: 156 The STS® time line: • 1986 -
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- Page 160 and 161: -----_._~-_._.__.- 160 SYNCBRONYTM.
- Page 162 and 163: 162 Government approvals for Roundu
- Page 164 and 165: HH i ! 164 AG6101 l.oundup Ready®
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- Page 172 and 173: 172 e recent occurrence has been th
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Waggoner December 24, 1994<br />
131<br />
JeffersoD~s Impe<br />
.ve<br />
Lightening th grimness of the first resolution, the second<br />
states: Farme s amended Malthus' Law into Jefferson's<br />
Imperative.<br />
For what I ca 1 Jefferson's Imperative, I let area cropped be<br />
A, Population be P, calories per capita be F for Food and<br />
Feed, and cal ric Yield per area be Y. Then<br />
P·F<br />
A=-<br />
Y<br />
The resi.duum fter A is cropped will be spared for other<br />
uses, includi g Nature. Humanity sets the Malthusian people P<br />
and food F ab ve the dividing line.<br />
Farmers amend with Y for yield. Ten percent higher yield<br />
spares the s e 10% land for Nature as 10% fewer people.<br />
From 1700 unt ,1 1950 people expanded global cropland faster<br />
than they mul iplied. In three centuries, cropland per person<br />
expanded 20%. Then in only 40 years, it fell 40%, Fig 1.<br />
2 ,..-------------.0.5<br />
1.<br />
1<br />
0.5<br />
halperson<br />
c<br />
~<br />
! 0.2 .c<br />
0.1<br />
o 0<br />
1700 1750 1800 1850 1900 19502000<br />
bal courses since 1700 of cropland in billions<br />
f cropland per capita. (Richards 1990 and Food<br />
re Or anization (FAO) 1992).<br />
Jefferson's<br />
yield can 10<br />
food calorie<br />
protein in t<br />
"<br />
perative insists only fewer calories or more<br />
er cropland per person. But from 1970 to 1990<br />
per person went up, not down. And animal<br />
e food supply went up even faster. Poor
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