Որոնում Պատկերներ YouTube Gmail Drive Օրացույց Translate Բջջային
Մուտք
Գրքեր Գրքեր 1 - 10 51-ից՝ Investigations conducted by the Biological Survey have shown that the northward distribution... որոնման արդյունքներում:
" Investigations conducted by the Biological Survey have shown that the northward distribution of terrestrial animals and plants is governed by the sum of the positive temperatures for the entire season of growth and reproduction, and that the southward... "
Bulletin - Էջ 44
1898
Ամբողջությամբ դիտվող - Այս գրքի մասին

Proceedings of the ... Annual Meeting of the Georgia State Horticultural Society

Georgia State Horticultural Society - 1908
...governed by the sum of the positive temperature for the entire season of growth and reproduction, and the southward distribution is governed by the mean...temperature of a brief period during the hottest part of the year." Does this help us in determining how far north or south a given fruit may be grown? Not at all,...
Ամբողջությամբ դիտվող - Այս գրքի մասին

Journal of Horticulture, Cottage Gardener and Home Farmer

1895
...total quantity of heat during the season of growth and reproduction, and in southward distribution by the mean temperature of a brief period during the hottest part of the year. The anomalous intermingling of boreal and austral types which occurs over an extensive area of...
Ամբողջությամբ դիտվող - Այս գրքի մասին

Yearbook of agriculture. 1894

Etats-Unis. Department of Agriculture - 1895
...temperatures for the entire season of growth and reproduction. In southward distribution they are restricted by the mean temperature of a brief period during the hottest part of the year. It is believed that these two principles cover the fundamental facts of distribution. BECAPITUL...
Ամբողջությամբ դիտվող - Այս գրքի մասին

Bulletin, Թողարկում 5-13

1895
...governed by the sum of the positive temperatures for the entire season of growth and reproduction,2 and that the southward distribution is governed by...distinctive temperatures of uhe three Boreal zones (Arctic, Iludsonian, and Canadian) are not positively known, but the southern limit of the Boreal as a whole...
Ամբողջությամբ դիտվող - Այս գրքի մասին

Yearbook of Agriculture

1895
...temperatures for the entire season of growth and reproduction. In southward distribution they are restricted by the mean temperature of a brief period during the hottest part of the year. It is believed that these two principles cover the fundamental facts of distribution. RECAPITULATION....
Ամբողջությամբ դիտվող - Այս գրքի մասին

Life Zones and Crop Zones of the United States

Clinton Hart Merriam - 1898 - 79 էջ
...the entire season of growth and reproduction,2 and that the southward distribution is governed by Hie mean temperature of a brief period during the hottest...Boreal as a whole is marked by the isotherm of 18° C. (04.4° P.) for the six hottest consecutive weeks of summer. It seems probable, from the few,data available,...
Ամբողջությամբ դիտվող - Այս գրքի մասին

Life Zones and Crop Zones of the United States

Clinton Hart Merriam - 1898 - 79 էջ
...for the entire season of growth and reproduction? and that the southward distribution is governed l>y the mean temperature of a brief period during the...Canadian zones. — The distinctive temperatures of Jie three Boreal zones (Arctic, Hudsonian, and Canadian) are not positively known, but the southern...
Ամբողջությամբ դիտվող - Այս գրքի մասին

The American Naturalist, Հատոր 33,Մաս 1

1899
...MEXICO AGRICULTURAL EXPERIMENT STATION. IT has recently1 been laid down by Dr. CH Merriam that " the northward distribution of terrestrial animals and...temperature of a brief period during the hottest part of the year." Dr. Merriam further explains that, " in computing the sum of the positive or effective temperatures,...
Ամբողջությամբ դիտվող - Այս գրքի մասին

The American Naturalist

1899
...MEXICO AGRICULTURAL EXPERIMENT STATION. IT has recently1 been laid clown by Dr. CH Merriam that " the northward distribution of terrestrial animals and...temperature of a brief period during the hottest part of the year." Dr. Merriam further explains that, "in computing the sum of the positive or effective temperatures,...
Ամբողջությամբ դիտվող - Այս գրքի մասին

Bulletin, Թողարկում 26-35

United States. Weather Bureau - 1899
...governed by the sum of the positive temperatures for the entire season of growth and reproduction, and the southward distribution is governed by the mean...temperature of a brief period during the hottest part of the year. Vegetation throughout the greater part of the United States lies within the temperate (or austral)...
Ամբողջությամբ դիտվող - Այս գրքի մասին




  1. Իմ գրադարանը
  2. Help
  3. Գրքերի ընդլայնված որոնում
  4. Download EPUB
  5. Բեռնել PDF