It has been 10 years since the first construction of wildlife crossing passage by the Republic of Korea's Ministry of Environment in 1998. The objective of this study was to suggest effective road-kill policy based on analysis of research reports and countermeasures. The research contents and methods of 26 reports published by government and public institutes were reviewed. The results were as follows. First, Korea has 379 wildlife crossing structures, the fourth most abundant number in the world, meaning the government's aggressive policy. Second, 17 reports introduced abroad case and 14 reports suggested fundamental guidelines, however, only 1 or 2 reports repeated field survey for wildlife movement around roads and crossing structure. Consequently, we inferred that Korea showed active efforts to construct countermeasures but passive to conduct fundamental field research. We suggest, therefore, road-kill policy of Korea should more invest for wide and deep field survey to understand wildlife moving habit and to monitor crossing structures.

This study was carried out to offer the raw data for environment conservation by surveying and analysing the vascular plants of Gotjawal terrain which is covered by aa rubble flow in Jeju island. The period of survey was from February 2007 to February 2008 at the site of four Gotjawal terrains. The vascular plants in Gotjawal were consisted of total 616 taxa including 111 taxa of ferns; 124 families, 401 genera, 514 species, 3 subspecies, 55 varieties, and 9 forms. Among the investigated plants, the special plant species based on floral region by Ministry of Environment were 202 taxa including 19 taxa in grade category. Law-protected plants by the Ministry of Environment were 6 taxa such as Quercus gilva, Mankyuya chejuense, Cymbidium nipponicum, and Galeola septentrionalis etc. Also, Korean endemic plants of this area were 8 taxa such as Mankyuya chejuense, Cardamine violifolia, Rubus hongnoensis, and Ligularia taquetii etc.

The flora and vegetation of the Northeast Chuncheon area were investigated from April, 2006 to October, 2007. Vascular plant of investigated region were composed of 113 families, 469 genera, 793 species, 2 subspecies, 114 varieties and 39 forma, totaling 948 taxa. The Pteridophyta index (Pte-Q) was 1.11. Thirty-three species including endemic genus Echinosophora among the 948 taxa were Korean endemic. Two endangered, 21 rare plants and 150 species of specially designated plant by the Ministry of Environment were also investigated. The naturalized plant were 68 taxa, and life form spectra was H-D4-R5-e type. 948 taxa listed consists of 314 taxa (33.2%) of edible plants, 285 taxa (30.1%) of medicinal plants, 153 taxa (16.2%) of pasture plants, 135 taxa (14.3%) of ornamental plants, 38 taxa (4.0%) of timber plants, 24 taxa (2.5%) of fiber plants and 5 taxa (0.5%) of industrial plants. The vegetation of Northeast Chuncheon area were classified three communities as Pinus densiflora, Quercus mongolica-Quercus variabilis, and Quercus mongolica.

Sagassum yezoense (Yamade) Yoshida et Konno is a large fucacean brown alga that occurs in Korea and Japan. The species is one of the most common and abundant marine algae on the east coast of Korea. Investigation on seasonal variation of growth and decline of thalli, reproduction, and morphological features of the species was carried out bimonthly for a target population in Homigot, Pohang, from April 2007 to February 2008. Ten quadrats (50 cm × 50 cm) per every visit were randomly put on S. yezoense beds and, after measuring its coverage, all thalli in the quadrats were collected, and examined for morphology. Surface seawater temperature was in a range of 9oC in February and 22.6oC in September. Coverage was high (74%) in April and low (15%) in October. The average length of thalli was large with 78.2 cm in June and was low 8.6 cm in September. Most of thalli were fertile in June, having male and female receptacles. S. yezoense beds gradually declined from August and small juveniles occurred from October. However, the length of leaves was shorter in June (1.7 cm) than (3.5 cm) in October, and the same was true for leaf width. S. yezoense had germination period from September, and growth period from December, and reproductive period from June. The Pearson correlation coefficient between length of thallus and surface seawater temperature was negative. As a low temperature species on the east coast, S. yezoense will be used as an indicator species for detecting warming of coastal waters in Korea.

This study was performed to investigate the flora of Gangneung-si (Kangwon-do). The collected vascular plants were composed of all 903 taxa including cultivated species, and classified into 755 species, 1 subspecies, 124 varieties, and 23 forms of 450 genera under 126 families. Among the investigated vascular plants, 16 taxa were Korean endemic species. Law-protected plants by Ministry of Environment were 2 taxa. The special plants based on floral region by Ministry of Environment (2006) were 75 taxa; V rank species 2 taxa, IV rank species 9 taxa, III rank species 21 taxa, II rank species 14 taxa, and I rank species 29 taxa. A naturalized plants were 45 species, correspond to 15.5% of totaling 290 species appeared in South Korea. Floristic geography of the investigated area was regarded as the boundary between middle regions in floristic pattern of the Korean peninsula.

This survey was carried out to investigate the flora of Mt. Maenghyun-bong at Injae. Vascular plants surveyed were consisted of 337 taxa, i.e., 262 species, 3 subspecies, 59 varieties, and 13 formae. Korean endemic plants were Asarum maculatum, Aconogonon microcarpum, Clematis trichotoma, Corydalis maculata, Vicia chosenensis, Viola diamantiacai, Lonicera subsessilis, and Cirsium setidens. Also, the conservatory plants classified from first grade to fifth grade were distributed 69 taxa in the Mt. Maenghyung-bong area. The naturalized plants found eleven species. Especially, Eleutherococcus senticosus, Cimicifuga heracleifolia, Anemone umbrosa, rare and endangered species, were found in this area firstly.