Judul: Instrumen Pembayaran Jasa Lingkungan dalam Mendukung Penataan Ruang DAS Ciliwung
Abstrak: Daerah Aliran Sungai (DAS) Ciliwung merupakan DAS yang memiliki nilai sangat strategis karena melintasi Provinsi Jawa Barat dan DKI Jakarta. Salah satu dampak pembangunan yang sangat pesat di DAS Ciliwung adalah bencana banjir akibat kurangnya daerah resapan air. Hingga saat ini kebijakan pengendalian banjir lebih didominasi oleh kebijakan struktural (fisik). Kebijakan non-struktural diperlukan untuk perbaikan dalam jangka panjang. Penataan ruang merupakan salah satu pendekatan non struktural dalam pengelolaan banjir, namun implementasinya seringkali tidak sejalan karena pola penggunaan lahan yang bernilai ekonomi tinggi menjadi pilihan masyarakat. Pembayaran jasa lingkungan atau Payment for Environmental Services (PES) merupakan mekanisme yang dapat memberikan insentif kepada masyarakat sehingga konservasi menjadi menarik bagi pemilik lahan. Implementasi PES di Indonesia secara formal didasarkan pada UU PPLH Nomor 32 Tahun 2009, namun definisi operasional dalam bentuk peraturan di bawahnya belum ada. Penelitian ini bertujuan (1) menganalisis implementasi PES, yang terdiri dari penentuan penyedia jasa lingkungan, besaran pembayaran jasa lingkungan dan mekanisme implementasi PES (2) menganalisis alokasi ruang yang optimal dengan melibatkan besaran PES, dan (3) menganalisis mekanisme kelembagaan PES untuk mendukung penataan ruang di DAS Ciliwung. Metode yang digunakan dalam penelitian ini terdiri dari beberapa metode. Penyedia jasa lingkungan menggunakan pendekatan spasial. Penentuan besaran jasa lingkungan menggunakan Contingent Valuation Method (CVM) berdasarkan Willingness to Pay (WTP). Mekanisme implementasi PES menggunakan pendekatan Ostrom Institutional Analysis Development (IAD). Analisis kontribusi PES dalam model tata ruang optimal menggunakan pendekatan spasial dan dinamik. Analisis spasial dilakukan untuk mengetahui pola perubahan ruang dan arah perubahan dari pola ruang DAS Ciliwung Tahun 1989, 2000, 2010 dan 2015. Analisis dinamik dilakukan dengan menggunakan nilai besaran PES dan pola dan arah perubahan ruang hasil analisis sebelumnya. Mekanisme kelembagaan PES untuk mendukung penataan ruang di DAS Ciliwung dianalisis menggunakan IAD Ostrom...dst
Keyword: Daerah aliran sungai Ciliwung, pembayaran jasa lingkungan, penataan ruang

Judul: Peran pembayaran jasa lingkungan (PJL) hutan terhadap sifat hidrologi lahan di DAS Cidanau, Banten
Abstrak: Payment for Environmental Services (PES) in Cidanau watershed is the payment for environmental services of Forest Ecosystem to control the water yield in Cidanau watershed. This PES is driven by issue of water yield decreasing, suggested due to forest encroachment of Rawa Danau. The role of PES for water yield control is approached through its role for the soil hydraulic properties. The research aim to analyze the difference of soil hydraulic properties managed with and without PES incentives. The research includes analysis of land use changes, infiltration rate and soil hydraulic properties of land with and without PES, and simulation of water flow as the response of rainfall. Implementation of PES in Cidanau watershed is able to maintain the good condition of forest. Soil hydraulic properties of land with PES is relatively better. The infiltration rate of land with PES is higher than without PES. Gravitational and available water is higher in land of without PES whereas the soil hydraulic condactivity is higher in land of with PES. Kostiakov and Horton models both are able to predict the rate of infiltration. Kostiakov is better than Horton model relatively. Log Normal Kosugi model was able to predict a soil-water retension curve and unsaturated hydraulic conductivity. One dimensional vertical flow simulation shown the higher flow in land with PES than without PES.
Keyword: Bogor Agricultural University (IPB), soil hydraulic properties, infiltration, Payment for environmental services of forest

Judul: Quality of Eggs Based on Different Age of Chickens from Yong's Farm, Seremban, Malaysia
Abstrak: This study aimed to determine the quality of eggs from different ages of chickens from Yong’s Farm, Seremban, Malaysia. The method used was 60 eggs were collected from three of different ages of chicken; 25 (n=20 eggs), 35 (n=20 eggs) and 58 weeks old (n=20 eggs). The variables included egg weight, shell thickness, yolk color, yolk index, albumen index and Haugh unit. The results showed the highest egg weight was recorded with 58 weeks old chicken. The egg shell thickness found at week 25 week (0,455 ± 0,08 mm), 35 weeks (0,495 ± 0,08 mm) and 58 weeks (0,475 ± 0,08 mm). Yolk color was at the highest mean of.12,6 ± 0,68 (25 weeks) while on week 35 and 58 it ranges between 5,45 ± 0,51 and 5,55 ± 0,51. The yolk index was recorded on week 25 and no specific trends were observed and the yolk index was not significant between 35 and 58 weeks of age. Albumen index was highest at week 25 were (0,129 ± 0,0), week 35 (0,113 ± 0,03) and week 58 (0,088 ± 0,02). The highest HU was recorded at week 25 (94,81 ± 5,33) and decreased to (90,52 ± 6,64) at week 35 and (81,95 ± 6,24) at week 58. It can be concluded that chicken influences both exterior and interior quality, except the yolk color with the quality of eggs decreasing as the age increases.
Keyword: chicken age, external quality, internal quality, Haugh Unit