Discussion on Forest Vegetation and Its Rational Utilization on the South Slope of the Funiu Mountains in Xizia County of Henan
Zhang Jinquan, Zhang Heling, Shi Yuqin
Chin J Plan Ecolo. 1983, 7 (1):
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Xixia county on the south of the Funiu Mountains of Henan is in the northern part of subtropical zone of our country. It is an important base of the study on the forest vegetation. There are meso mountains, low mountains, hill lands, basins and valley plains in topography. The climate is of the transitional type from the subtropical zone to the warm temperate zone. The rivers have the characteristics of the mountain brook. The big rivers are the Lao-guan River, the Qi River, the Xia River and the Dan-shui River, etc. The principal soils are the brunisolic soil, the yellow-brown earth and the yellow cinnamon soil, etc.There are 5 principal types of the forest vegetation:The coniferous forest, the deciduous broad-leaved forest, the semiaiophyllus broad-leaved forest, the bamboo forest and the deciduous broadleaved economy forest. They include 10 formation groups and 18 formations, in which the Pinus massoniana forest, the Quercus acutidentata forest and the Quercus variabilis forest play an important role in the forest vegetation.A unity between the forest vegetation and the ecotype of Xixia county is an inseparable join and influenced part each other. The primeval physiognomy of the forest vegetation is fairly well. The forest covet degree was 75% before the War of Resistance Against Japan, and 63%, natural secondary forest 3, 230, 000mu, before liberation. Through the chop of the forest for 6 times the ecological equilibrium was destroyed: the rainfall decreased, the climate became dry, the water source dried up, the flow decreased, the water and soil were lose in large quantities, ponds and reservoirs and the course of rivers were bocked up, the animal had no place to live and proliferate, the agricultural production was influenced, the products of forest were decreased, etc. So we must be taking strong measures to adjust the forest vegetation of Xixia county.