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قراءة كتاب The Forest Habitat of the University of Kansas Natural History Reservation

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The Forest Habitat of the University of Kansas Natural History Reservation

The Forest Habitat of the University of Kansas Natural History Reservation

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دار النشر: Project Gutenberg
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the manuscript.

Early U. S. Government maps of northeastern Kansas show the distribution of forest in the late eighteen fifties, and in general the pattern agrees well with that indicated by the accounts of Parks and Robinson. Through the kindness of Dr. Malin, we have been permitted to examine his photostatic copies of a series of these early maps, covering the area discussed in our study, and made in the period extending from 1855 through 1860. A tracing taken from parts of two of these maps, showing the Kansas River north and east of Lawrence, and the area between the river and the north boundary of Douglas County, is reproduced in Fig. 1. For comparison, a map of the same area showing the stream courses and the distribution of timber, as traced from recent U. S. Geological Survey maps, is reproduced in Fig. 2.

The early maps agree with Parks' and Robinson's descriptions in showing an extensive belt of timber in the flood plain north of the river, and narrower belts of timber along its tributary streams. In Fig. 1 the courses of the Kansas River and of Mud Creek agree fairly well with those shown on modern maps, but there are gross errors in the minor drainage systems of the sections of land in the northeastern part. Other evidence indicates that the distribution of forest was much different than that shown in this part of the map. Field work by the map-makers in this marginal area must have been extremely sketchy. Dr. Malin explains that such inaccuracies are to be expected because the contracts for mapping were made on a political basis, with little or no regard for other qualifications of the applicant.

The University of Kansas Natural History Reservation is in the northeasternmost section (Section 4, Township 12S, Range 20E) of Douglas County, Kansas. Topographically, it is almost evenly divided into three parts: (1) peninsular extensions of the Kansas River Valley, sloping gradually up to a level approximately 100 feet above that of the flood plain; (2) hilltops 200 feet or more above the level of the flood plain; (3) steep slopes from the hilltops to the valley floor.

The land that is now the Reservation was part of a tract acquired in the eighteen sixties by former governor Charles Robinson, after the Delaware Reserve lands in the northeastern part of Kansas Territory were sold by the tribe. The section of land now comprising the Reservation was used primarily for grazing after Robinson acquired it. However, several squatters settled on the area and cultivated small acreages for periods of years in the eighteen seventies and eighteen eighties. In the eighteen nineties parts of the area including some of the hillsides were still covered with a mixed forest of virgin timber (fide Frank H. Leonhard in conversation, October 19, 1951). Mr. Leonhard, who was long in the employ of the Charles Robinson family, remembered the area as far back as the early eighteen nineties when he worked on it cutting timber. He remembered, especially, cutting large walnut trees as much as two feet in diameter, which were valuable timber, but he thought that elm also was abundant at that time. By then the area, separated into east and west halves by a rock wall, had already been heavily grazed, and the original prairie vegetation, presumably dominated by big bluestem, had been much altered. The open upland portions were dominated by blue grass.


Fig. 1. Tracing from early (1855-60) U. S. Government maps
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Fig. 1. Tracing from early (1855-60) U. S. Government maps of northeastern Douglas County, Kansas, and adjacent western edge of Leavenworth County, showing stream courses and approximate distribution of woodland before deforestation had occurred. Section 4 to right of center at upper edge of figure, is now mostly included in the University of Kansas Natural History Reservation. Note inaccuracies in drainage systems on this part of map as compared with Fig. 2.

 


Fig. 2. Tracing from 1950 U.S. Geological Survey maps


Fig. 2. Tracing from 1950 U.S. Geological Survey maps of same area shown in Fig. 1, indicating present distribution of woodland, and the pattern of drainage systems.

By about 1900 control of the area had passed to the J. F. Morgan family. The homesteads had long since been deserted and the entire area was used for grazing (fide J. F. Morgan, in conversation, January 13, 1952). Parts of the bottomland were fenced and broken for cultivation in 1907, 1912, and 1915, and hilltop fields were first cultivated in 1909. Tree cutting was more or less continual. Many of the old stumps still present on the area are remnants of the trees cut in the "twenties" or even earlier. Several acres of hilltop and south slope in the northwest corner of the area were protected from livestock and maintained for harvesting of prairie hay. The hay was mowed annually, and the vegetation was burned at less frequent intervals, usually in early spring. This treatment served to kill encroaching woody vegetation and to maintain a prairie type.

In the mid-thirties control of the area passed to the University of Kansas. At that time a program of development was launched by the University and the U. S. Soil Conservation Service with relief labor (fide C. G. Bayles in conversation, November 10, 1953). The work included: filling gullies, digging diversion ditches and building check dams and terraces to prevent erosion; clearing extensive thickets; bindweed eradication from the cultivated areas; and fencing off the wooded hillsides from the valley and hilltop pastures for protection from livestock. This work extended over several years, and one main objective was to utilize the area for growing timber. However, plans to make extensive plantings of walnut and other valuable timber never materialized. In the forties the check dams fell into disrepair. The area was leased to a farmer and was again heavily overgrazed. In this period there was some tree-cutting by the University's Department of Buildings and Grounds and by farmers, but this cutting was not on a commercial scale and was mainly for firewood and fence posts. One of the chief results of fencing off the wooded hillsides was that shrubs and young trees, formerly held in check by livestock, were allowed to flourish. Understory thickets sprang up throughout most of the woodland, and especially in edge situations.

Late in 1948, after the area had been made a Reservation, livestock were

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