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<table border="0" cellpadding="3" cellspacing="1" width="100%" class="forumline"> <tr> <th class="thCornerL" width="22%">Autor</th> <th class="thCornerR">Wiadomość</th> </tr> <tr> <td width="22%" align="left" valign="top" class="row1"><span class="name"><a name=""></a><b>px477801</b></span></td> <td class="row1" valign="top"><table width="100%" border="0" cellspacing="0" cellpadding="0"> <tr> <td width="100%"><img src="http://picsrv.fora.pl/Elveron/images/icon_minipost.gif" width="12" height="9" alt="Post" title="Post" border="0" /><span class="postdetails">Wysłany: Pon 11:07, 04 Kwi 2011<span class="gen"> </span> Temat postu: Karst plateau and canyon land use comparison - to</span></td> </tr> <tr> <td colspan="2"><hr /></td> </tr> <tr> <td colspan="2"><span class="postbody">Karst plateau and canyon land use comparison - A Case Study of Qingzhen and Huajiang <br /> <br /> <br />The area percentage of the Huajiang 7 times that of paddy field area Huajiang small,<a href="http://www.jimmychoosouthafrica.com" target="_blank" class="postlink">jimmy choo south africa</a>, fragmented distribution. Qingzhen dam No. 4 dry spot Zhang Yamei, Xiongkang Ning, Yang Bailin: Karst plateau and canyon land use comparison - to Qingzhen and HUAJIANG block density is 4o, 151 dry Huajiang depression for 1 Huajiang / 3, the percentage area of ​​Qingzhen Jiang spent nearly 9 times the concentration of contiguous dryland apparently Qingzhen distribution. The patch density in sloping land Qingzhen 22, spent 33 dry river slope, steep slope of 54 dry land, totaling 87, the area of ​​sloping land Huajiang percentage Qingzhen almost 2 times that Jiang spent more dispersed sloping land farming. Highly fragmented land, unit size, which largely prevented the development of agricultural economy, on the one hand, and fundamentally limits the use of agricultural machinery. On the other hand, a direct result of large-scale agricultural operations face greater difficulties in the choice of the modern enterprise have been affected. Table 6 flower demonstration areas of land use type of land use density data structure of 3.5 entropy can be characterized by heterogeneity of land use structure, land use diversity as an indicator of the diversity of land use and various types of distribution uniformity. The larger the value of information entropy, the more types of land use, the more uniform distribution of a variety of use types. Shan-non entropy formula in accordance with the definition of information entropy of land use structure formula: nnH = one. ΣPilgPi. Pi = 1 where: Date: entropy; P: various land use types in area ratio. When P. = P2 = ... = P, the day gets the maximum value, = lgn (article 71, = 11). = Lgl1 = 1.0414 results, Qingzhen as 0.9284, Huajiang for the o. 7634, indicating Qingzhen land use tends to be more uniform. The maximum entropy is 1.0414, Qingzhen information entropy is o. 9284, Huajiang for the o. 7634, so the two demonstration areas of land use is not uniform poor. 3.6 The extent of land development and utilization of land reclamation rate: percentage of cultivated area t ~ / percentage of the total land area × 100%. Forest cover: forest area in percentage of l: g / percentage of the total land area × 100%, the percentage of forest area of ​​woodland and open forest land with the area percentages. Land Utilization: The percentage of land area has been used t ~ / percentage of the total land area × 100%, the percentage of land area has been used in addition to low coverage by grass (rocky ground) other than the percentage of land area and. Agricultural utilization of land: agricultural land area percentage of t ~ / percentage of the total land area × 100%, the percentage of agricultural land area of ​​cultivated land and forest area with a percentage of the sum. Non-agricultural usage of land: non-agricultural land area percentage t ~ / percentage of the total land area × 100%. Table 7 Indicators of land development and utilization of forest coverage rate of land reclamation of agricultural land utilization rate of land utilization of non-agricultural land utilization 51.969.6883.3152.8347.1743.303.4274.9253.5246.48 plateau and canyon areas the extent of land development and utilization of regional uneven development. Qingzhen plateau land reclamation and land utilization rates were higher than those spent River Gorge area, indicating the extent and Qingzhen farming land development level of development, land use is higher than the total spent River. River forest cover is to spend almost 3 times higher than the level of forest cover Huajiang, forests can maintain soil, water conservation, and create a good ecological environment. Since the development of Huajiang forest as the direction of agricultural development, the full use of the original number of abandoned or barren land to grow low-yielding dry forest, so the utilization of agricultural land Qingzhen River below the flower, the land utilization rate higher than that of non-agricultural Huajiang. Reflect the degree of development of the agricultural good in Qingzhen Huajiang.</span></td> </tr> </table></td> </tr> <tr> <td colspan="2" height="1" class="spaceRow"><img src="http://picsrv.fora.pl/Elveron/images/spacer.gif" alt="" width="1" height="1" /></td> </tr> </table>
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