• 한국산림과학회지
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• 제76권1호
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• pp.17-26
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• 1987

서울 수도권(首都圈) 지역(地域)에 널리 분포되어 있는 암반황폐지(岩盤荒廢地)에 대한 황폐특성(荒廢特性)을 규명하여 회복대책(恢復對策)을 강구하기 위한 기초적 연구로서 황폐유형(荒發類型)을 분류(分類)하고, 또 암반사면(岩盤斜面)에서의 암설토사(巖屑土砂)의 활강이동퇴적량(滑降移動堆積量)을 측정(測定)하였다. 황폐지(荒廢地)의 기본유형(基本類型)을 자연암벽(自然岩壁) 및 암반라출지(岩盤裸出地), 암설산재지(岩屑散在地), 암설(岩屑) 및 조사(粗砂)의 퇴적지(堆積地), 풍화(風化)에 민감한 거친 모래생산지(生産地), 외성(矮性)소나무산생지(散生地) 및 계간황폐지(溪間荒發地)로 6대(大) 분류(分類)할 수 있었다. 그리고 암설산재사면(巖屑散在斜面)에서 년평균(年平均) 암설토사(岩屑土砂)의 활강이동량(滑降移動量)은 약 3.9 ton/ha/yr으로 계산되었다. 활강이동(滑降移動)된 암설토사(岩屑土砂)의의 입경분포(粒徑分布)에 있어서는 평균입경(平均粒徑) 약 10~25mm 급(級)에서 약 25%, 5~10 mm 급(級)에서 약 15%, 2~5 mm 급(級)에서 약 24%, 그리고 2mm 이하에서 약 36%로 분석(分析)되었다. 암석사면(岩石斜面)에서의 풍화(風化)-침식(浸蝕)-이동(移動)-황폐과정(荒廢過程)에 대한 실험적(實驗的) 연구(硏究)가 수행되어야 할 것이다.

• 한국조경학회지
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• 제15권1호
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• pp.9-16
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• 1987

In Seoul metropolitan area, rockily denuded fores lands are widely distributed. Out of the rock-exposed hillslopes, Kwanak-Samsung mountains and Bookhan-Dobong mountains areas are the most severely eroded land at present To develope the rehabilitation measures for the rock-exposed hillslopes, it is essentially required that mechanisms of rock debris production and movement from the rock-exposed hillslopes should be studied. And also, suitable experiments for planting techniques should be practised at the field level. In this context, some experiments for the on-site fixation of the unstable stone-debris including plantation establishments on the rock-exposed hillslopes, have been carried out for 4 years from 1983 to 1986 at Kwanak mountain hillslopes. The results may be summarized as follows : 1) The soil environment-tolerable tree species for plantation extablishment on rock-exposed hillslopes include Buxus microphylla var. koreana, Forsythia koreana, Juniperus chinensis var. sargentii, Alnus hirsuta and Pinus rigida. These trees have, however, been showed fairly good growth performence at the places having more than about 30cm of soul layer depth above rock-bed. 2) In raising of seedlings to plant on the rock-exposed hillslopes, containerized seedling practices knave been appeared as the most adoptable measures. 3) In fixation of the unstable stole debris-and-sands on the on-site of rock. exposed hillslopes, the stone-lined barrier measures are more effective at comparatively large-sized places of rock-exposed hillslopes while the stone-bowed barrier measures are more effective at small-sifted isolated sold-debris places. The stone-buttressed terraces measures are more effective at the soil-composed hillslopes rather than rock-exposed hillslopes.