Analisis Kondisi Habitat Dan Perakaran Tumbuhan Bawah Pada Daerah Terbuka Dan Di Bawah Tegakan Cemara Udang Di Pesisir Lembupurwo, Kebumen

Abstract

A B S T R A C TCoastal sandy soil without trees is characterized by a high temperature, salinity, strong wind, as well as lacking nutrient content. The environmental conditions limit affects the variety of undergrowths. This research aimed to figure out the composition, distribution pattern, habitat condition and rooting of brushes species found on coastal sandy areas at the Lemburpurwo. The study was conducted using line transect method applying systematic sampling with a random start. The observations of undergrowths were carried out on the three types of threads, i.e., near the sea, under the beach-she-oak stands locally know as Cemara Udang, and behind the beach-she-oak stands with no trees. Transects were made perpendicular approximately 53 m from the shoreline, and the distance between transects was 95 m. A series of 2x2 m 2 plots were laid diagonally (zigzag) across the transect line for undergrowths sample collection. 81 plots were taken, represented the Lemburpurwo area covering 72,960 m 2 . Scrubs plant species were identified, the length and number of roots were measured, environmental conditions and soil condition including pH, conductivity, total N, available P, and available K were also measured. Lembupurwo coastal sandy area was inhabited by 20 species of 13 families of undergrowths. Three species were found randomly distributed, and 17 species were found in a clustered distribution pattern. Spinifex littoralis has the longest root as well as the largest number of roots, especially in open areas. The measured values of soil pH and conductivity below the stands were 6.41 and 32.23 µs/cm lower compared to near the sea site. Total N and available P of the soil under beach-she-oak stands were 0.03% and 5.05 ppm which higher than the other two locations.